2025-01369. Taking and Importing Marine Mammals; Taking Marine Mammals Incidental to Geophysical Surveys Related to Oil and Gas Activities in the Gulf of Mexico

Table 1—Take Analysis ¹

Species	Authorized take	Abundance 2	Percent abundance
Rice's whale	0	51	n/a
Sperm whale	102	3,007	3.4
Kogia spp.	3  50	980	5.1
Beaked whales	248	803	30.9
Rough-toothed dolphin	254	4,853	5.2
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Bottlenose dolphin	210	165,125	0.1
Clymene dolphin	308	4,619	6.7
Atlantic spotted dolphin	62	21,506	0.3
Pantropical spotted dolphin	2,989	67,225	4.4
Spinner dolphin	4  152	5,548	2.7
Striped dolphin	892	5,634	15.8
Fraser's dolphin	102	1,665	6.1
Risso's dolphin	73	1,974	3.7
Blackfish 5	704	6,113	11.5
Short-finned pilot whale	82	2,741	3.0
1  Scalar ratios were not applied in this case due to brief survey duration.
2  Best abundance estimate. For most taxa, the best abundance estimate for purposes of comparison with take estimates is considered here to be the model-predicted abundance (Garrison et al., 2023). For Rice's whale, Atlantic spotted dolphin, and Risso's dolphin, the larger estimated SAR abundance estimate is used.
3  Estimated takes include 3 takes by Level A harassment and 47 takes by Level B harassment. However, as the actual source planned for use is a non-impulsive source, no take by Level A harassment is likely to occur and all authorized takes are by Level B harassment.
4  Modeled take of 53 increased to account for potential encounter with a group of average size (Maze-Foley and Mullin, 2006).
5  The “blackfish” guild includes melon-headed whales, false killer whales, pygmy killer whales, and killer whales.