2024-21182. Endangered and Threatened Wildlife and Plants; Critical Habitat Designations for Florida Manatee and Antillean Manatee

Table 1—Proposed Critical Habitat Units for the Florida Manatee

[Area estimates reflect all land within critical habitat unit boundaries and do not include lands that are exempt under the Act's section 4(a)(3)(B)(i) in Units FL-04, FL-10, and FL-11.]

Critical habitat unit	Federal ownership in acres (hectares)	State ownership in acres (hectares)	Local ownership in acres (hectares)	Private ownership in acres (hectares)	Size of unit in acres (hectares)
FL-01: Wakulla Springs	936 (379)	21,598 (8,740)	1 (<1)	58 (23)	22,593 (9,143)
FL-02: Manatee and Fanning Springs	224 (91)	4,157 (1,682)	12 (5)	59 (24)	4,452 (1,802)
FL-03: Withlacoochee Bay to Anclote River	21,131 (8,551)	335,064 (135,596)	1,670 (676)	6,716 (2,719)	364,584 (147,542)
( print page 78145)
FL-04: Tampa Bay	682 (276)	68,347 (27,659)	108,805 (44,032)	3,181 (1,287)	181,015 (73,254)
FL-05: Venice to Estero Bay	2,048 (829)	191,975 (77,690)	16,821 (6,807)	8,373 (3,388)	219,217 (88,714)
FL-06: Rookery Bay to Florida Bay West	343,626 (139,061)	105,559 (42,718)	18 (7)	849 (344)	450,052 (182,130)
FL-07: Upper Florida Keys	161,201 (65,236)	76,635 (31,013)	2,762 (1,118)	3,656 (1,480)	244,254 (98,846)
FL-08: Biscayne Bay to Deerfield Beach	91,404 (36,990)	46,768 (18,926)	5,525 (2,236)	3,028 (1,225)	146,725 (59,378)
FL-09: Boynton Beach to Fort Pierce	203 (82)	35,967 (14,555)	533 (216)	1,126 (456)	37,829 (15,309)
FL-10: Vero Beach to Northern Indian River Lagoon	33,077 (13,386)	117,318 (47,477)	1,782 (721)	1,410 (571)	153,588 (62,155)
FL-11: Upper St. Johns River	1,815 (735)	76,984 (31,154)	150 (61)	495 (200)	79,444 (32,150)
FL-12: Silver Springs	6 (2)	417 (169)	0 (0)	15 (6)	438 (177)
Total	656,356 (265,617)	1,080,797 (437,380)	138,080 (55,879)	28,969 (11,723)	1,904,191 (770,599)
Ownership Percentage	34	57	7	2
Note: Area sizes and percentages may not sum due to rounding.

We present brief descriptions of all proposed revised units and reasons why they meet the definition of critical habitat for the Florida manatee, below.

Unit FL-01: Wakulla Springs

Unit FL-01 consists of 22,593 ac (9,143 ha) of springs, rivers, and open water along the Gulf of Mexico in Wakulla County, Florida. The unit extends from Wakulla Springs in Edward Ball Wakulla Springs State Park down the Wakulla River out to the Gulf of Mexico where it fans out to approximately 5 mi (8 km) east and west. The unit also extends up the St. Marks River approximately 9 river mi (14.5 km) from the confluence of the Wakulla and St. Marks Rivers. The unit includes all inshore, manatee-accessible waters below the mean high water (MHW) line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water site of Wakulla Springs. Offshore, the unit extends to either 18.6 mi (30 km) from Wakulla Springs or the outer extent of seagrass beds in the Gulf of Mexico, whichever is closest to shore.

Areas within this unit include approximately 936 ac (379 ha; 4 percent) in Federal ownership, 21,598 ac (8,740 ha; 96 percent) in State ownership, 1 ac (less than 1 ha; less than 1 percent) in local government ownership, and 58 ac (23 ha; less than 1 percent) in private/other ownership. Federally owned lands in this unit include St. Marks National Wildlife Refuge (NWR), and State-owned lands include Edward Ball Wakulla Springs and San Marcos de Apalache Historic State Parks, as well as State-owned submerged lands. General land use within this unit includes parks, natural resource conservation, wildlife management, and recreational and commercial activities ( e.g., swimming, fishing, and boating). Small areas of the unit also adjoin areas of residential and commercial development.

Unit FL-01 is occupied by the subspecies and contains all of the physical or biological features essential to the conservation of the subspecies. This unit has one primary warm-water refuge, Wakulla Springs, that supports established manatee use and has medium thermal quality (Valade et al. 2020, p. 29). The unit also provides forage material within the Wakulla and St. Marks Rivers, as well as in the Gulf of Mexico. In addition, this unit provides the northernmost and westernmost primary warm-water refuge in the Florida manatee's range, thereby supporting expansion and refuge for manatees from other units or a stopover location for manatees migrating back to Florida for the winter, ensuring good spatial representation for the Northwest Manatee Management Unit.

Approximately 18,940 ac (7,665 ha; 84 percent) of the unit overlap with proposed critical habitat for the threatened rufa red knot ( Calidris canutus rufa) (see 88 FR 22530, April 13, 2023) and the North Atlantic distinct population segment (DPS) of the green sea turtle ( Chelonia mydas) (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-01 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; conducting spring run restoration and improving access; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-02: Manatee and Fanning Springs

Unit FL-02 consists of 4,452 ac (1,802 ha) of springs and river in the Big Bend of the Gulf Coast in Dixie, Levy, and Gilchrist Counties, Florida. The unit extends from approximately 18.6 mi (30 km) north of Fanning Springs near Log Landing Conservation Area downstream to the mouth of the Suwannee River at the Gulf of Mexico. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of Fanning and Manatee Springs.

Areas within this unit include approximately 224 ac (91 ha; 5 percent) in Federal ownership, 4,157 ac (1,682 ha; 93 percent) in State ownership, 12 ac (5 ha; less than 1 percent) in local government ownership, and 59 ac (24 ha; 1 percent) in private/other ownership. Federally owned lands in this unit include Lower Suwannee NWR, and State-owned lands include Manatee Springs and Fanning Springs State Parks, Suwannee River WMD conservation areas, and State-owned submerged lands. General land use within this unit includes parks, natural resource conservation, wildlife management, and recreational and commercial activities ( e.g., swimming, fishing, and boating). Small areas of the ( print page 78146) unit also adjoin areas of residential and commercial development.

Unit FL-02 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has two secondary warm-water refuges, Manatee Springs and Fanning Springs, that support established manatee use with high and medium thermal quality, respectively (Valade et al. 2020, p. 28). This unit also provides forage material within the Suwannee River. In addition, this unit provides the two northernmost secondary warm-water refuges on the west coast of Florida, thereby supporting refuge and an area for expansion for manatees from other units or a stopover location for manatees migrating back to Florida for the winter, ensuring good spatial representation for the Northwest Manatee Management Unit.

Approximately 4,045 ac (1,637 ha; 91 percent) of the unit overlap with designated critical habitat for the threatened Atlantic sturgeon (Gulf subspecies) ( Acipenser oxyrinchus desotoi) (see 68 FR 13370, March 19, 2003) and Suwannee moccasinshell ( Medionidus walker) (see 86 FR 34979, July 1, 2021) and proposed critical habitat for the threatened North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-02 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; conducting spring run restoration and improving access; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-03: Withlacoochee Bay to Anclote River

Unit FL-03 consists of 364,584 ac (147,542 ha) of springs, rivers, and open water along the Gulf of Mexico in Levy, Citrus, Hernando, Pasco, and Pinellas Counties, Florida. The unit extends from approximately 6 mi (9.7 km) north of the mouth of the Withlacoochee River to Howard Beach Park, which is approximately 1.5 mi (2.4 km) south of the mouth of the Anclote River. The unit includes all inshore, manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of the Crystal River Springs Complex, Homosassa Springs, the Chassahowitzka Springs Group, the Weeki Wachee Spring Complex, and Cow Creek Spring. Offshore, the unit extends to either 18.6 mi (30 km) from the warm-water sites or the outer extent of seagrass beds in the Gulf of Mexico, whichever is closest to shore.

Areas within this unit include approximately 21,131 ac (8,551 ha; 6 percent) in Federal ownership, 335,064 ac (135,596 ha; 92 percent) in State ownership, 1,670 ac (676 ha; less than 1 percent) in local government ownership, and 6,716 ac (2,719 ha; 2 percent) in private/other ownership. Federally owned lands in this unit include Crystal River and Chassahowitzka NWRs; State-owned lands include Anclote Key Preserve State Park, Marjorie Harris Carr Cross Florida Greenway State Recreation and Conservation Area, Withlacoochee State Forest, and State-owned submerged lands; and local government-owned lands include several county-owned parks and preserves. General land use within this unit includes parks, natural resource conservation, wildlife management, and recreational and commercial activities ( e.g., swimming, fishing, and boating), and power generation. Some areas of the unit also adjoin areas of residential and commercial development.

Unit FL-03 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has three primary warm-water refuges, the Crystal River Springs Complex, Homosassa Springs, and the Weeki Wachee Spring Complex, that support established manatee use and have high thermal quality and two secondary refuges, the Chassahowitzka Springs Group and Cow Creek Spring, that have unpredictable manatee use with medium thermal quality (Valade et al. 2020, pp. 28-29). This unit also provides forage material within the Withlacoochee, Crystal, Homosassa, Chassahowitzka, Weeki Wachee, Pithlachascotee and Anclote Rivers and tributaries, as well as in the Gulf of Mexico. In addition, this unit supports an important wintering area (Crystal River Springs Complex) for many of the manatees that travel west of Florida during the warmer months, ensuring good representation within the Northwest Manatee Management Unit and a connection to the Southwest Manatee Management Unit through its extension to the Anclote River.

Approximately 326,379 ac (132,081 ha; 90 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977) and proposed critical habitat for the threatened North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-03 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; coordinating with the Service prior to treatments of invasive or nuisance aquatic vegetation and limiting invasive or nuisance aquatic vegetation treatments that could reduce vegetation availability during the cold season; conducting spring run restoration and improving access; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-04: Tampa Bay

Unit FL-04 consists of 181,015 ac (73,254 ha) of Tampa Bay and the springs, rivers, and canals surrounding the bay in Pinellas, Hillsborough, and Manatee Counties, Florida. The unit includes all inshore waters of Tampa Bay east of the Skyway Bridge on Interstate 275 and inshore waters from Fort De Soto Park to the Pinellas Bayway (State Road 682). The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the established winter manatee aggregation areas near Duke ( print page 78147) Energy's Bartow Power Plant, Tampa Electric Company's Bayside Power Plant, and Tampa Electric Company's Big Bend Station.

Areas within this unit include approximately 682 ac (276 ha; less than 1 percent) in Federal ownership, 68,347 ac (27,659 ha; 38 percent) in State ownership, 108,805 ac (44,032 ha; 60 percent) in local government ownership, and 3,181 ac (1,287 ha; 2 percent) in private/other ownership.

Under section 4(a)(3)(B)(i) of the Act, we are exempting 4,415 ac (1,787 ha) of MacDill Air Force Base lands within this unit from the critical habitat designation because the U.S. Department of Defense (DoD) has an approved integrated natural resources management plan (INRMP) for this area that provides benefits to the manatee and its habitat (see Exemptions, below).

Federally owned lands in this unit include Pinellas NWR. State-owned lands in this unit include State Parks (Cockroach Bay Preserve, Terra Ceia Preserve, Little Manatee River, and Skyway Fishing Pier), Southwest Florida WMD restoration areas, and State-owned submerged lands. Local government-owned lands in this unit include several county-owned parks and preserves. General land use within this unit includes parks, natural resource conservation, wildlife management, recreational and commercial activities ( e.g., swimming, fishing, and boating), power generation, military activities, and cargo and cruise port activities. Most of the unit also adjoins areas of residential and commercial development.

Unit FL-04 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit provides forage material within 18.6 mi (30 km) of three established winter manatee aggregation areas: Duke Energy's Bartow Power Plant, Tampa Electric Company's Bayside Power Plant, and Tampa Electric Company's Big Bend Station (Valade et al. 2020, pp. 29-30). In addition, this unit supports expansion and recovery of the regional warm-water network in the Southwest Manatee Management Unit due to several lower quality springs and other natural refuges or areas available to create new refuges within the unit.

Approximately 168,976 ac (68,382 ha; 93 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977); designated critical habitat for the wintering population of the endangered piping plover ( Charadrius melodus) (see 66 FR 36038, July 10, 2001); and proposed critical habitat for the threatened rufa red knot (see 88 FR 22530, April 13, 2023) and the North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-04 include foraging and other habitat loss, modification, and degradation; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-05: Venice to Estero Bay

Unit FL-05 consists of 219,217 ac (88,714 ha) of Charlotte Harbor, Gasparilla Sound, Matlacha Pass, and Estero Bay, as well as the rivers, canals, and springs surrounding them, in Sarasota, Charlotte, Lee, Hendry, and Collier Counties, Florida. The unit includes inshore waters from the Boca Grande Causeway south to Vanderbilt Beach Road. From Charlotte Harbor, the unit extends up the Myakka River, then down Curry Creek to the Venice Inlet. The unit does not include the Peace River east of the Barron Collier Bridge on State Road 41. The Caloosahatchee River is included from its mouth near Cape Coral to near the Caloosahatchee and C-43 Basin Storage Reservoir. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of Warm Mineral Springs, Matlacha Isles, North Cape Coral Canal, and Ten Mile Canal Borrow Pit; and the established winter manatee aggregation area near Florida Power and Light's Fort Myers Power Plant.

Areas within this unit include approximately 2,048 ac (829 ha; 1 percent) in Federal ownership, 191,975 ac (77,690 ha; 88 percent) in State ownership, 16,821 ac (6,807 ha; 8 percent) in local government ownership, and 8,373 ac (3,388 ha; 4 percent) in private/other ownership. Federally owned lands in this unit include Caloosahatchee, Matlacha Pass, Pine Island, Island Bay, and J.N. Ding Darling NWRs. State-owned lands in this unit include State Parks (Lovers Key, Charlotte Harbor Preserve, Estero Bay Preserve, Delnor-Wiggins Pass, and Cayo Costa), Myakka State Forest, Southwest Florida WMD's Deer Prairie Creek Preserve, South Florida WMD's C-43 Basin Storage Reservoir, and State-owned submerged lands. In this unit, local government-owned lands include several county-owned parks and preserves, and privately-owned preserves include the Calusa Land Trust and Nature Preserve of Pine Island and Sanibel-Captiva Conservation Foundation conservation lands. General land use within this unit includes parks, natural resource conservation, wildlife management, recreational and commercial activities ( e.g., swimming, fishing, and boating), and power generation. Some areas of the unit also adjoin areas of residential and commercial development.

Unit FL-05 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has one primary warm-water refuge, Warm Mineral Spring Creek/Salt Creek, that supports established manatee use and has high thermal quality and three secondary refuges, Matlacha Isles, North Cape Coral Canals (Ceitus Lake), and Ten Mile Canal-Borrow Pit, that have established manatee use with medium or low thermal quality (Valade et al. 2020, p. 30). In addition, this unit provides forage material within 18.6 mi (30 km) of the established winter manatee aggregation area near Florida Power and Light's Fort Myers Power Plant within the Caloosahatchee River (Valade et al. 2020, p. 30), as well as within Roberts Bay, Curry Creek, Myakka River, Charlotte Harbor, Gasparilla Sound, Matlacha Pass, and Estero Bay. This unit also supports expansion and recovery of the regional warm-water network in the Southwest Manatee Management Unit due to several lower quality springs and other natural refuges or areas available to create new refuges within the unit.

Approximately 215,477 ac (87,201 ha; 98 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977); designated critical habitat for the wintering population of the endangered piping plover (see 66 FR 36038, July 10, 2001), U.S. DPS of the smalltooth sawfish ( Pristis pectinata) (see 74 FR 45353, ( print page 78148) September 2, 2009), and Northwest Atlantic Ocean DPS of the loggerhead sea turtle ( Caretta caretta) (see 79 FR 39856, July 10, 2014); and proposed critical habitat for the threatened rufa red knot (see 88 FR 22530, April 13, 2023) and the North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-05 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; conducting spring run restoration and improving access; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-06: Rookery Bay to Florida Bay West

Unit FL-06 consists of 450,052 ac (182,130 ha) of inshore and coastal waters from Naples Bay to the western half of Florida Bay in Collier, Monroe, and Miami-Dade Counties, Florida. The unit includes inshore waters of Naples from the Golden Gate Parkway (County Road 886) bridge over Gordon River to Marco Island. From Ten Thousand Island to Florida Bay, the unit includes inshore waters and offshore waters ranging from 1 to 13 mi (1.6 to 21 km) offshore. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of Henderson Creek, Marco Island Canals, Port of the Islands Canals, Port of the Islands Mitigation Site, Wooten's Pond, Big Cypress Preserve Canal, Mud Bay, and the Everglades Complex.

Areas within this unit include approximately 343,626 ac (139,061 ha; 76 percent) in Federal ownership, 105,559 ac (42,718 ha; 23 percent) in State ownership, 18 ac (7 ha; less than 1 percent) in local government ownership, and 849 ac (344 ha; less than 1 percent) in private/other ownership. Federally owned lands in this unit include Ten Thousand Island NWR, Everglades National Park, and Big Cypress National Preserve; State-owned lands include Collier-Seminole and Fakahatchee Strand Preserve State Parks, Rookery Bay National Estuarine Research Reserve (NERR), and State-owned submerged lands. General land use within this unit includes parks, natural resource conservation, wildlife management, and recreational and commercial activities ( e.g., swimming, fishing, and boating). Small areas of the unit also adjoin areas of residential and commercial development.

Unit FL-06 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has two primary warm-water refuges, Port of the Islands Canals and Port of the Islands Mitigation Site, that have medium thermal quality with established manatee use (canals) and unpredictable manatee use (mitigation site) and six secondary refuges, Henderson Creek, Marco Island Canals, Wooten's Pond, Big Cypress Preserve Canal, Mud Bay, and the Everglades Complex, that have established manatee use with medium, low, or unknown thermal quality (Valade et al. 2020, pp. 29-30). In addition, this unit provides forage material within Naples Bay, Rookery Bay, Gullivan Bay, Florida Bay, the Gulf of Mexico, and the many small bays and creeks along the coast.

This unit provides a connection between the Southwest and Atlantic Coast Manatee Management Units as it extends into both units, thereby supporting expansion and movements between the Gulf and Atlantic Coasts. Additionally, this unit supports the largest and most stable foraging area within the Atlantic Coast Manatee Management Unit, Florida Bay (Yarbro and Carlson 2016, entire).

Approximately 448,908 ac (181,667 ha; 100 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977); designated critical habitat for the threatened Florida DPS of the American crocodile ( Crocodylus acutus) (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977), and for the endangered Everglade snail kite ( Rostrhamus sociabilis plumbeus) (see 42 FR 40685, August 11, 1977), wintering population of the piping plover (see 66 FR 36038, July 10, 2001), U.S. DPS of the smalltooth sawfish ( Pristis pectinata) (see 74 FR 45353, September 2, 2009), and Northwest Atlantic Ocean DPS of the loggerhead sea turtle (see 79 FR 39856, July 10, 2014); and proposed critical habitat for the threatened rufa red knot (see 88 FR 22530, April 13, 2023) and the North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-06 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-07: Upper Florida Keys

Unit FL-07 consists of 244,254 ac (98,846 ha) of inshore and coastal waters of the Upper Florida Keys, from Islamorada north to Old Rhodes Key in Monroe and Miami-Dade Counties, Florida. The unit includes waters of Eastern Florida Bay to approximately 13 mi (21 km) offshore, inshore waters and canals of the Keys, and waters of the Atlantic Ocean approximately 0.5 to 1.5 mi (0.8 to 2.4 km) offshore. The unit also extends inland into the Glades Canal approximately 11 mi (17.7 km) and into the Florida Power and Light Everglades Mitigation Bank Canals approximately 7 mi (11 km). The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of the Upper Keys Canals and Brown Street Canal.

Areas within this unit include approximately 161,201 ac (65,236 ha; 66 percent) in Federal ownership, 76,635 ac (31,013 ha; 31 percent) in State ownership, 2,762 ac (1,118 ha; 1 percent) in local government ownership, and 3,656 ac (1,480 ha; 1 percent) in private/other ownership. Federally owned lands in this unit include Crocodile Lake NWR, Everglades ( print page 78149) National Park, and Biscayne National Park. State-owned lands in this unit include Lignumvitae Key Botanical, John Pennekamp Coral Reef, Windley Key Fossil Reef Geological, and Dagny Johnson Key Largo Hammock Botanical State Parks; South Florida WMD's Model Lands Basin; Florida Keys Wildlife and Environmental Area; and State-owned submerged lands. General land use within this unit includes parks, natural resource conservation, wildlife management, and recreational and commercial activities ( e.g., swimming, fishing, and boating). Some areas of the unit also adjoin areas of residential and commercial development.

Unit FL-07 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has two secondary warm-water refuges, Brown Street Canal and the Upper Keys Canals, that have established manatee use with medium and unknown thermal quality, respectively (Valade et al. 2020, pp. 26-27). In addition, this unit provides forage material within Florida Bay, the Atlantic Ocean, Card Sound, Barnes Sound, Manatee Bay, Blackwater Sound, Buttonwood Sound, and the many smaller bays, sounds, and basins of the Upper Florida Keys and the southeastern coast of Florida's mainland. This unit supports the largest and most stable foraging areas within the Atlantic Coast Manatee Management Unit, Florida Bay, and the Florida Keys (Yarbro and Carlson 2016, entire), contributing to the resiliency of the unit.

Approximately 244,247 ac (98,843 ha; 100 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977); designated critical habitat for the endangered U.S. DPS of the smalltooth sawfish (see 74 FR 45353, September 2, 2009), threatened Florida DPS of the American crocodile (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977), elkhorn ( Acropora palmata) and staghorn ( A. cervicornis) corals (see 73 FR 72210, November 26, 2008), Nassau grouper ( Epinephelus striatus) (see 89 FR 126, January 2, 2024), and five threatened Caribbean coral species ( Orbicella annularis, O. faveolata,O. franksi, Dendrogyra cylindrus, and Mycetophyllia ferox) (see 88 FR 54026, August 9, 2023, and 89 FR 19511, March 19, 2024); and proposed critical habitat for the threatened North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-07 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-08: Biscayne Bay to Deerfield Beach

Unit FL-08 consists of 146,725 ac (59,378 ha) of inshore waters from Biscayne Bay to Deerfield Beach in Miami-Dade, Broward, and Palm Beach Counties, Florida. The unit includes inshore waters of Biscayne Bay and the intracoastal waterways, rivers, and canals (up to 24 mi (38.6 km) inland in some locations) along the southeastern Florida coast from the southern end of Biscayne National Park to Deerfield Beach. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of the Coral Gables Waterway, Palmer Lake, and the Little River-S-27 structure; and the established winter manatee aggregation areas near Florida Power and Light's Dania Beach and Port Everglades Energy Centers.

Areas within this unit include approximately 91,404 ac (36,990 ha; 62 percent) in Federal ownership, 46,768 ac (18,926 ha; 32 percent) in State ownership, 5,525 ac (2,236 ha; 4 percent) in local government ownership, and 3,028 ac (1,225 ha; 2 percent) in private/other ownership. Federally owned lands in this unit include Biscayne National Park. State-owned lands in this unit include State Parks (Oleta River, Bill Baggs Cape Florida, and Dr. Von D. Mizell-Eula Johnson), South Florida WMD's Biscayne Coastal Wetlands, Everglades and Francis S. Taylor Wildlife Management Area, and State-owned submerged lands. Local government-owned lands in this unit include several county-owned parks and preserves. General land use within this unit includes parks, natural resource conservation, wildlife management, recreational and commercial activities ( e.g., swimming, fishing, and boating), power generation, and cargo and cruise port activities. Most of the unit also adjoins areas of residential and commercial development.

Unit FL-08 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has one primary warm-water refuge, the Coral Gables Waterway, with established manatee use and high thermal quality and two secondary warm-water refuges: Palmer Lake, with unpredictable manatee use and medium thermal quality; and Little River-S-27 structure, with established manatee use and low thermal quality (Valade et al. 2020, pp. 26-27). In addition, this unit provides forage material within 18.6 mi (30 km) of the established winter manatee aggregation area near Florida Power and Light's Dania Beach and Port Everglades Energy Centers (Valade et al. 2020, p. 30), as well as within Biscayne Bay, the Miami River, Little River, Intracoastal Waterway, Stranahan River, New River, Middle River, and the many canals, lakes, and bays along the southeast coast of Florida. This unit also supports expansion and recovery of the regional warm-water network in the Atlantic Coast Manatee Management Unit due to several lower quality natural refuges or areas available to create new refuges within the unit.

Approximately 139,942 ac (56,632 ha; 95 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977); designated critical habitat for the endangered Everglade snail kite (see 42 FR 40685, August 11, 1977) and Florida bonneted bat ( Eumops floridanus) (see 89 FR 16624, March 7, 2024); designated critical habitat for the threatened Florida DPS of the American crocodile (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977), elkhorn and staghorn corals (see 73 FR 72210, November 26, 2008), Nassau grouper (see 89 FR 126, January 2, 2024), and five threatened Caribbean coral species ( Orbicella annularis, O. faveolata,O. franksi, Dendrogyra cylindrus, and Mycetophyllia ferox) (see 88 FR 54026, August 9, 2023, and 89 FR 19511, March 19, 2024); and proposed critical habitat for the threatened North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-08 ( print page 78150) include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-09: Boynton Beach to Fort Pierce

Unit FL-09 consists of 37,829 ac (15,309 ha) of inshore waters from approximately 1.3 mi (2 km) south of the Boynton Inlet to approximately 4.7 mi (7.6 km) south of the Fort Pierce Inlet in Palm Beach, Martin, and St. Lucie Counties, Florida. The unit includes inshore waters (up to 18 mi (29 km) inland) of the intracoastal waterways, rivers, and canals along the eastern Florida coast even with Lake Okeechobee. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water site of Willoughby Creek and the established winter manatee aggregation area near Florida Power and Light's Riviera Beach Energy Center.

Areas within this unit include approximately 203 ac (82 ha; 1 percent) in Federal ownership, 35,967 ac (14,555 ha; 95 percent) in State ownership, 533 ac (216 ha; 1 percent) in local government ownership, and 1,126 ac (456 ha; 3 percent) in private/other ownership. The majority of this unit consists of State-owned submerged lands. General land use within this unit includes parks, natural resource conservation, wildlife management, recreational and commercial activities ( e.g., swimming, fishing, and boating), power generation, and cargo and cruise port activities. Most of the unit also adjoins areas of residential and commercial development.

Unit FL-09 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has one secondary warm-water refuge, Willoughby Creek, with established manatee use and low thermal quality (Valade et al. 2020, p. 27). In addition, this unit provides forage material within 18.6 mi (30 km) of the established winter manatee aggregation area near Florida Power and Light's Riviera Beach Energy Center (Valade et al. 2020, p. 26), as well as within Lake Worth Lagoon, the North Palm Beach Waterway, Loxahatchee River, Indian River Lagoon, St. Lucie River, and the many canals and basins connected to them. This unit also supports expansion and recovery of the regional warm-water network in the Atlantic Coast Manatee Management Unit due to several lower quality natural refuges or areas available to create new refuges within the unit.

Approximately 32,389 ac (13,107 ha; 86 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977); designated critical habitat for the endangered wintering population of the piping plover (see 66 FR 36038, July 10, 2001) and Northwest Atlantic Ocean DPS of the loggerhead sea turtle (see 79 FR 39856, July 10, 2014); and proposed critical habitat for the threatened North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-09 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-10: Vero Beach to Northern Indian River Lagoon

Unit FL-10 consists of 153,588 ac (62,155 ha) of inshore waters from the Merrill P. Barber Bridge (on State Road 60) in Vero Beach to the northern tip of the Indian River Lagoon in Indian River, Brevard, and Volusia Counties, Florida. The unit includes rivers and canals along the Indian River Lagoon and Banana River on the central east coast of Florida. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of the Sebastian River (C-54 Canal), DeSoto Canal, Berkeley Canal, and the Banana River Marine Service Marina, as well as the established winter manatee aggregation area near Florida Power and Light's Port Canaveral Energy Center. The unit does not extend all the way through the Haulover Canal or include Mosquito Lagoon because those areas are farther than 18.6 mi (30 km) from the nearest primary or secondary warm-water refuge or established winter manatee aggregation area.

Areas within this unit include approximately 33,077 ac (13,386 ha; 22 percent) in Federal ownership, 117,318 ac (47,477 ha; 76 percent) in State ownership, 1,782 ac (721 ha; 1 percent) in local government ownership, and 1,410 ac (571 ha; 1 percent) in private/other ownership. Under section 4(a)(3)(B)(i) of the Act, we are exempting 278 ac (112 ha) of DoD lands (216 ac (87 ha) of Cape Canaveral Space Force Station lands and 62 ac (25 ha) of Patrick Space Force Base lands) within this unit from the critical habitat designation because the DoD has an approved INRMP for these areas that provides benefits to the manatee and its habitat (see Exemptions, below).

Federally owned lands in this unit include Merritt Island, Pelican Island, and Archie Carr NWRs. State-owned lands in this unit include State Parks (Indian River Lagoon Preserve, St. Sebastian River Preserve, and Sebastian Inlet) and State-owned submerged lands. Local government-owned lands in this unit include several county- and city-owned parks and preserves. General land use within this unit includes parks, natural resource conservation, wildlife management, recreational and commercial activities ( e.g., swimming, fishing, and boating), power generation, military activities, cargo and cruise port activities, and space research and launch activities. Most of the unit also adjoins areas of residential and commercial development.

Unit FL-10 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has one primary warm-water refuge, DeSoto Canal, with established manatee use and medium ( print page 78151) thermal quality, and three secondary warm-water refuges, Sebastian River (C-54 Canal), Berkely Canal, and Banana River Marine Service Marina, with established manatee use and low to medium thermal quality (Valade et al. 2020, pp. 25-27). In addition, this unit provides forage material within 18.6 mi (30 km) of the established winter manatee aggregation area near Florida Power and Light's Cape Canaveral Energy Center (Valade et al. 2020, p. 26), as well as within the Indian River Lagoon, St. Sebastian River, Turkey Creek, Crane Creek, Eau Gallie River, Sykes Creek, Banana River, and the many canals connected to them. This unit also supports expansion and recovery of the regional warm-water network in the Atlantic Coast Manatee Management Unit due to several lower quality natural refuges or areas available to create new refuges within the unit.

Approximately 151,293 ac (61,226 ha; 99 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977) and proposed critical habitat for the threatened rufa red knot (see 88 FR 22530, April 13, 2023) and the North Atlantic DPS of the green sea turtle (see 88 FR 46572, July 19, 2023).

Threats to the physical or biological features identified within Unit FL-10 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; enhancing existing or creating alternate warm-water refuges; establishing and enforce boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-11: Upper St. Johns River

Unit FL-11 consists of 79,444 ac (32,150 ha) of springs, rivers, and lakes in the Upper St. Johns, Hontoon Dead, Ziegler Dead, Norris Dead, and Ocklawaha Rivers in Lake, Seminole, Volusia, Marion, and Putnam Counties, Florida. The unit extends from Lake Monroe north to Memorial Bridge (State Road 100) over the St. Johns River, east to the mouth of Dunns Creek at Crescent Lake, and west to the Rodman Reservoir through the Cross Florida Barge Canal. The unit also includes the section of the Ocklawaha River from the St. Johns River to the Rodman Dam. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water sites of Blue, Silver Glen, Salt, and Welaka Springs.

Areas within this unit include approximately 1,815 ac (735 ha; 2 percent) in Federal ownership, 76,984 ac (31,154 ha; 97 percent) in State ownership, 150 ac (61 ha; less than 1 percent) in local government ownership, and 495 ac (200 ha; 1 percent) in private/other ownership. Under section 4(a)(3)(B)(i) of the Act, we are exempting 8 ac (3.2 ha) of Rodman Bomb Target, part of the Naval Air Station Jacksonville Complex, within this unit from the critical habitat designation because the DoD has an approved INRMP for these areas that provides benefits to the manatee and its habitat (see Exemptions, below).

Federally owned lands in this unit include Lake Woodruff NWR and Ocala National Forest. State-owned lands in this unit include State Parks (DeLeon Springs, Blue Spring, Hontoon Island, Ravine Gardens, Lower Wekiva River Preserve and Dunns Creek), Marjorie Harris Carr Cross Florida Greenway State Recreation and Conservation Area, Welaka State Forest, Lake George State Forest, and State-owned submerged lands. Local government-owned lands in this unit include several county-owned parks and preserves. General land use within this unit includes parks, natural resource conservation, wildlife management, recreational and commercial activities ( e.g., swimming, fishing, and boating), and military activities. Some areas of the unit also adjoin areas of residential and commercial development.

Unit FL-11 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has three primary warm-water refuges, Blue Springs, Silver Glen Springs, and Salt Springs, with established manatee use and high thermal quality and one secondary warm-water refuge, Welaka Springs, with established manatee use and low thermal quality (Valade et al. 2020, p. 25). In addition, this unit provides forage material within the main stems and tributaries of the St. Johns, Hontoon Dead, Ziegler Dead, Norris Dead, and Ocklawaha Rivers, as well as within Lake Monroe, Lake Beresford, Lake Woodruff, Spring Garden Lake, Lake Dexter, Lake George, the Rodman Reservoir, and the many smaller lakes, rivers, and creeks connecting them. This unit also provides some of the farthest inland primary warm-water refuges in the Florida manatee's range and supports expansion and recovery of the regional warm-water network in the Upper St. Johns River Manatee Management Unit due to several lower quality natural refuges or areas available to create new refuges within the unit, thereby supporting expansion and refuge for manatees, and ensuring good spatial representation for the St. Johns River Manatee Management Unit.

Approximately 65,961 ac (26,693 ha; 83 percent) of the unit overlap with the current critical habitat designation for the West Indian manatee (see 41 FR 41914, September 24, 1976, and 42 FR 47840, September 22, 1977).

Threats to the physical or biological features identified within Unit FL-11 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; removing nutrient-laden sediments; coordinating with the Service prior to treatments of invasive or nuisance aquatic vegetation and limiting invasive or nuisance aquatic vegetation treatments that could reduce vegetation availability during the cold season; conducting spring run restoration and improving access; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Unit FL-12: Silver Springs

Unit FL-12 consists of 438 ac (177 ha) of springs and rivers in Marion County, Florida. The unit extends from Silver Springs down Silver River, then north and south into the Ocklawaha River approximately 13 mi (21 km) to Cedar Creek to the north and Southeast ( print page 78152) Highway 464C to the south. The unit includes manatee-accessible waters below the MHW line (Service 2022, entire) within approximately 18.6 mi (30 km) from the warm-water site of Silver Springs.

Areas within this unit include approximately 6 ac (2 ha; 1 percent) in Federal ownership, 417 ac (169 ha; 95 percent) in State ownership, and 15 ac (6 ha; 3 percent) in private/other ownership.

Federally owned lands in this unit include the Ocala National Forest, and State-owned lands in this unit include Silver Springs State Park, Marjorie Harris Carr Cross Florida Greenway State Recreation and Conservation Area, St. Johns River WMD's Ocklawaha Prairie Restoration Area, and State-owned submerged lands. General land use within this unit includes parks, natural resource conservation, wildlife management, and recreational and commercial activities ( e.g., swimming, fishing, and boating). Small areas of the unit also adjoin areas of residential and commercial development.

Unit FL-12 is occupied by the subspecies and contains one or more of the physical or biological features essential to the conservation of the subspecies. This unit has one primary warm-water refuge, Silver Springs, with high thermal quality and unpredictable manatee use (Valade et al. 2020, p. 25), although recent studies have documented increased and consistent use of the spring and nearby waters (Ross et al. 2023, p. 2). In addition, this unit provides forage material within the Silver and Ocklawaha Rivers. This unit also provides the farthest inland primary warm-water refuge in the Florida manatee's range and supports expansion and recovery of the regional warm-water network in the Upper St. Johns River Manatee Management Unit due to several lower quality natural refuges or areas available to create new refuges within the unit, thereby supporting expansion and refuge for manatees, and ensuring good spatial representation for the St. Johns River Manatee Management Unit.

Threats to the physical or biological features identified within Unit FL-12 include foraging and other habitat loss, modification, and degradation; warm-water habitat loss; algal blooms; climate change; contaminants; and tropical storms and hurricanes. Special management considerations or protection measures to reduce or alleviate threats may include improving water quality; establishing and maintaining minimum flows and levels; restoring aquatic vegetation, living shorelines, and filter feeders; coordinating with the Service prior to treatments of invasive or nuisance aquatic vegetation and limiting invasive or nuisance aquatic vegetation treatments that could reduce vegetation availability during the cold season; conducting spring run restoration and improving access; enhancing existing or creating alternate warm-water refuges; establishing and enforcing boat speed zones, marked navigation channels, and exclusion areas; developing or revising and implementing standardized construction conditions for in-water construction; and developing or revising and implementing oil spill response and marine debris removal guidance with manatee and aquatic vegetation considerations.

Proposed Critical Habitat Designation for the Antillean Manatee

We are proposing 13 units in the Commonwealth of Puerto Rico as critical habitat for the Antillean manatee, totaling approximately 78,121 ac (31,614 ha). The critical habitat areas we describe below constitute our current best assessment of areas that meet the definition of critical habitat for the Antillean manatee. All of these areas are occupied, and we are not proposing any unoccupied areas. All of these areas are also Commonwealth-owned. Table 2 shows the proposed critical habitat units, including unit names, land ownership, and approximate area of each unit.

Table 2—Proposed Critical Habitat Units for the Antillean Manatee

[Area estimates reflect all land within critical habitat unit boundaries.]

Critical habitat unit	Commonwealth ownership in acres (hectares)	Size of unit in acres (hectares)
PR-01: Boca Vieja	2,640 (1,068)	2,640 (1,068)
PR-02: Condado Lagoon	91 (37)	91 (37)
PR-03: Río Grande	1,691 (685)	1,691 (685)
PR-04: Fajardo	2,065 (836)	2,065 (836)
PR-05: Ceiba	6,429 (2,602)	6,429 (2,602)
PR-06: Vieques	4,980 (2,015)	4,980 (2,015)
PR-07: Arroyo	15,001 (6,071)	15,001 (6,071)
PR-08: Santa Isabel to Jobos Bay	24,360 (9,858)	24,360 (9,858)
PR-09: Guayanilla	7,404 (2,996)	7,404 (2,996)
PR-10: Guánica	1,798 (728)	1,798 (728)
PR-11: Bahía Sucia	1,732 (697)	1,732 (697)
PR-12: Boquerón	1,989 (805)	1,989 (805)
PR-13: Mayagüez	7,949 (3,217)	7,949 (3,217)
Total	78,121 (31,614)	78,121 (31,614)
Ownership Percentage	100
Note: Area sizes and percentages may not sum due to rounding.