Comment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

Document ID: EPA-HQ-OW-2009-0224-0007
Document Type: Public Submission
Agency: Environmental Protection Agency
Received Date: June 05 2009, at 10:37 AM Eastern Daylight Time
Date Posted: June 5 2009, at 12:00 AM Eastern Standard Time
Comment Start Date: April 15 2009, at 12:00 AM Eastern Standard Time
Comment Due Date: June 15 2009, at 11:59 PM Eastern Standard Time
Tracking Number: 809c634f
View Document:

This is comment on Notice

Ocean Acidification and Marine pH Water Quality Criteria

View Comment

The attached study reports changes in coastal ocean pH in Washington state since 2000, and provides a methodological approach and data linking changes in pH over this time period to changes in marine ecological communities on the shoreline. The data demonstrate an unexpectedly large drop in pH over the study period, strong statistical relationships of pH change over several times scales to nine key drivers expected to be linked mechanistically to ocean pH, and reduced performance of dominant calcifying organisms, based on detailed species replacement patterns, as pH declines. These data support the need for the EPA to evaluate the effects of ocean acidification on coastal processes and respond accordingly.

Attachments:

Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

Title:
Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

View Attachment:

Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

Title:
Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

Abstract:
Dynamic patterns and ecological impacts of declining ocean pH in a high-resolution multi-year dataset. This document can be viewed at the USEPA Docket Center, Public Reading Room. Address: USEPA West, 1301 Constitution Ave. NW, Room 3334, Washington, DC 20004. Telephone: 202-566-1744; Email: docket-customerservice@epa.gov

View Attachment:

Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago Supporting Info

Title:
Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago Supporting Info

Abstract:
Supporting Information from the cover: Dynamic patterns and ecological impacts of declining ocean pH in a high-resolution multi-year dataset. PNAS (105) (2008): 18848-18853; published online before print November 24, 2008, doi:10.1073/pnas.0810079105. This document is not available in Regulations.gov since it is a copyrighted publication and may not be reproduced without consent of the copyright holder.

View Attachment:

Original copyright document attachment for Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago Supporting Info

Title:
Original copyright document attachment for Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago Supporting Info

Abstract:
Supporting Information from the cover: Dynamic patterns and ecological impacts of declining ocean pH in a high-resolution multi-year dataset. PNAS (105) (2008): 18848-18853; published online before print November 24, 2008, doi:10.1073/pnas.0810079105. This document can be viewed at the USEPA Docket Center, Public Reading Room. Address: USEPA West, 1301 Constitution Ave. NW, Room 3334, Washington, DC 20004. Telephone: 202-566-1744; Email: docket-customerservice@epa.gov

View Attachment:

Original copyright document for Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

Title:
Original copyright document for Comment attachment submitted by Timothy J. Wootton, Department of Ecology and Evolution, University of Chicago

View Attachment:

Related Comments

View All

Total: 200

Comment submitted by R. C. Ruschman
Public Submission Posted: 04/24/2009 ID: EPA-HQ-OW-2009-0224-0004