Appendix 1. Redox potential profile (h) (Eh [mV]), sulfide (d) and sulfate (n) concentration (mmol l–1) profiles. ‘Alvin’ dive numbers and pushcore numbers are indicated at the top of each set of graphs. (A) Background. (B) Clam beds. (C) Clam beds (Eh only). (D) Mixed beds. (E)

Shell beds. (F) Shell beds (Eh only)

Characteristics of vesicomyid clams and their environment at the Blake Ridge cold seep

Taylor P. Heyl1, William P. Gilhooly2, Randolph M. Chambers3, George W. Gilchrist1, Stephen A. Macko2, Carolyn D. Ruppel4, 6, Cindy L. Van Dover5,*

1Department of Biology, College of William & Mary, Williamsburg, Virginia 23187, USA2Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia 22903, USA

3Keck Laboratory, College of William & Mary, Williamsburg, Virginia 23187, USA4School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA

5Duke University Marine Laboratory, Nicholas School of the Environment and Earth Sciences, Beaufort, North Carolina 28516, USA

6Present address: US Geological Survey, Woods Hole, Massachussetts 02543-1598, USA

*Corresponding author. Email: clv3@duke.edu

Marine Ecology Progress Series 339:169–184 (2007)

The following appendices accompany the article

Appendix 1 A

Appendix 1 (continued)

Appendix 1 A

Appendix 1 (continued)

Appendix 1 B

Appendix 1 (continued)

Appendix 1 C

Appendix 1 (continued)

Appendix 1 D

Appendix 1 E

Appendix 1 (continued)

Appendix 1 F

Appendix 1 (continued)

Appendix 2 Sulfide and sulfate δ34S profiles. ‘Alvin’ dive numbers and push core numbers are indicated at the top of each set ofgraphs. (A) Clam beds. (B) Shell beds

Appendix 2 A

Appendix 2 (continued)

Appendix 2 B