Variations in seep mussel bed communities along physical and chemical environmental gradients

Derk C. Bergquist, Clint Fleckenstein, Julie Knisel, Brett Begley, Ian R. MacDonald, Charles R. Fisher

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

This study examined the faunal communities associated with beds of the hydrocarbon seep mussel Bathymodiolus childressi in the Gulf of Mexico and the relationships between these communities and local environmental characteristics. Mussels, their associated fauna and accompanying water chemistry parameters were collected at 17 locations across 4 hydrocarbon seep sites. A total of 19 species, mostly seep endemics, were identified. Species richness and fauna density were significantly and negatively correlated with methane concentration and were significantly and positively correlated with oxygen concentration. Canonical Correspondence Analysis (CCA) separated polychaetes, alvinocarid shrimp and gastropods along gradients of methane and oxygen concentrations. Polychaetes and alvinocarid shrimp tended towards lower oxygen and higher methane concentrations and gastropods tended towards higher oxygen and lower methane. The larger-sized predaceous gastropods and decapods were associated with lower sulfide and higher oxygen concentrations. The proportion of the community comprising of endemic species was significantly and positively correlated with mussel biomass and shell surface area. Other measures of habitat complexity (mussel density, shell surface area and biomass) explained little of the variation in the associated faunal communities. The results suggest that oxygen and methane availabilities play a substantial role in structuring these communities with several dominant seep heterotrophs partitioning resources among different microenvironments.

Original languageEnglish (US)
Pages (from-to)99-108
Number of pages10
JournalMarine Ecology Progress Series
Volume293
DOIs
StatePublished - Jun 2 2005

Fingerprint

environmental gradient
mussels
methane
oxygen
hydrocarbon seep
gastropod
Gastropoda
shell (molluscs)
Polychaeta
hydrocarbons
surface area
shrimp
fauna
shell
heterotrophs
niche partitioning
biomass
hydrochemistry
correspondence analysis
Gulf of Mexico

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

Cite this

Bergquist, D. C., Fleckenstein, C., Knisel, J., Begley, B., MacDonald, I. R., & Fisher, C. R. (2005). Variations in seep mussel bed communities along physical and chemical environmental gradients. Marine Ecology Progress Series, 293, 99-108. https://doi.org/10.3354/meps293099
Bergquist, Derk C. ; Fleckenstein, Clint ; Knisel, Julie ; Begley, Brett ; MacDonald, Ian R. ; Fisher, Charles R. / Variations in seep mussel bed communities along physical and chemical environmental gradients. In: Marine Ecology Progress Series. 2005 ; Vol. 293. pp. 99-108.
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Bergquist, DC, Fleckenstein, C, Knisel, J, Begley, B, MacDonald, IR & Fisher, CR 2005, 'Variations in seep mussel bed communities along physical and chemical environmental gradients', Marine Ecology Progress Series, vol. 293, pp. 99-108. https://doi.org/10.3354/meps293099

Variations in seep mussel bed communities along physical and chemical environmental gradients. / Bergquist, Derk C.; Fleckenstein, Clint; Knisel, Julie; Begley, Brett; MacDonald, Ian R.; Fisher, Charles R.

In: Marine Ecology Progress Series, Vol. 293, 02.06.2005, p. 99-108.

Research output: Contribution to journalArticle

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