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Cold-seep habitat mapping: High-resolution spatial characterization of the Blake Ridge Diapir seep field

Publication ,  Journal Article
Wagner, JKS; McEntee, MH; Brothers, LL; German, CR; Kaiser, CL; Yoerger, DR; Van Dover, CL
Published in: Deep-Sea Research Part II: Topical Studies in Oceanography
August 1, 2013

Relationships among seep community biomass, diversity, and physiographic controls such as underlying geology are not well understood. Previous efforts to constrain these relationships at the Blake Ridge Diapir were limited to observations from piloted deep-submergence vehicles. In August 2012, the autonomous underwater vehicle (AUV) Sentry collected geophysical and photographic data over a 0.131km2 area at the Blake Ridge Diapir seeps. A nested survey approach was used that began with a regional or reconnaissance-style survey using sub-bottom mapping systems to locate and identify seeps and underlying conduits. This survey was followed by AUV-mounted sidescan sonar and multibeam echosounder systems mapping on a mesoscale to characterize the seabed physiography. At the most detailed survey level, digital photographic imaging was used to resolve sub-meter characteristics of the biology. Four pockmarks (25-70m diameter) were documented, each supporting chemosynthetic communities. Concentric zonation of mussels and clams suggests the influence of chemical gradients on megafaunal distribution. Data collection and analytical techniques used here yield high-resolution habitat maps that can serve as baselines to constrain temporal evolution of seafloor seeps, and to inform ecological niche modeling and resource management. © 2013 Elsevier Ltd.

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Published In

Deep-Sea Research Part II: Topical Studies in Oceanography

DOI

ISSN

0967-0645

Publication Date

August 1, 2013

Volume

92

Start / End Page

183 / 188

Related Subject Headings

  • Oceanography
  • 3708 Oceanography
  • 3103 Ecology
  • 0602 Ecology
  • 0405 Oceanography
  • 0402 Geochemistry
 

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Wagner, J. K. S., McEntee, M. H., Brothers, L. L., German, C. R., Kaiser, C. L., Yoerger, D. R., & Van Dover, C. L. (2013). Cold-seep habitat mapping: High-resolution spatial characterization of the Blake Ridge Diapir seep field. Deep-Sea Research Part II: Topical Studies in Oceanography, 92, 183–188. https://doi.org/10.1016/j.dsr2.2013.02.008
Wagner, J. K. S., M. H. McEntee, L. L. Brothers, C. R. German, C. L. Kaiser, D. R. Yoerger, and C. L. Van Dover. “Cold-seep habitat mapping: High-resolution spatial characterization of the Blake Ridge Diapir seep field.” Deep-Sea Research Part II: Topical Studies in Oceanography 92 (August 1, 2013): 183–88. https://doi.org/10.1016/j.dsr2.2013.02.008.
Wagner JKS, McEntee MH, Brothers LL, German CR, Kaiser CL, Yoerger DR, et al. Cold-seep habitat mapping: High-resolution spatial characterization of the Blake Ridge Diapir seep field. Deep-Sea Research Part II: Topical Studies in Oceanography. 2013 Aug 1;92:183–8.
Wagner, J. K. S., et al. “Cold-seep habitat mapping: High-resolution spatial characterization of the Blake Ridge Diapir seep field.” Deep-Sea Research Part II: Topical Studies in Oceanography, vol. 92, Aug. 2013, pp. 183–88. Scopus, doi:10.1016/j.dsr2.2013.02.008.
Wagner JKS, McEntee MH, Brothers LL, German CR, Kaiser CL, Yoerger DR, Van Dover CL. Cold-seep habitat mapping: High-resolution spatial characterization of the Blake Ridge Diapir seep field. Deep-Sea Research Part II: Topical Studies in Oceanography. 2013 Aug 1;92:183–188.
Journal cover image

Published In

Deep-Sea Research Part II: Topical Studies in Oceanography

DOI

ISSN

0967-0645

Publication Date

August 1, 2013

Volume

92

Start / End Page

183 / 188

Related Subject Headings

  • Oceanography
  • 3708 Oceanography
  • 3103 Ecology
  • 0602 Ecology
  • 0405 Oceanography
  • 0402 Geochemistry