Biogeography, Ecology, and Vulnerability of Chemosynthetic Ecosystems in the Deep Sea

Baker, Maria; Ramirez-Llodra, Eva; Tyler, Paul A.; German, Christopher R.; Boetius, Antje; Cordes, Erik E.; Dubilier, Nicole; Fisher, Charles R.; Levin, Lisa A.; Meta×as, Anna; Rowden, Ashley A.; Santos, Ricardo S.; Shank, T.; Dover, Cindy Lee Van; Young, Craig M.; Warèn, Anders

doi:10.1002/9781444325508.ch9

Cited by 39 publications

(24 citation statements)

References 117 publications

(153 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…all vent families were found at seeps). The higher richness found at seeps may be due to the greater sampling effort and thus, to a better characterisation of seep diversity, especially because rare species can reach up 50 % of the communities in chemosynthetic environments (Baker et al, 2010). This effect of rare species is supported by the fact that 30 species from the 34 additional families at seeps were found in low relative densities (< 5 %) compared with vents.…”

Section: The Similarity Between Vents and Seepssupporting

confidence: 56%

“…These strong differences are assumed to be partly shaped by large-scale factors. Seep and vent biogeographic isolation and subsequent evolutionary divergence, as well as the closer proximity of seeps to continents (and the resulting settlement of background macrofauna) may play an important role in structuring these communities (Carney, 1994;Baker et al, 2010). Nevertheless, around Japan, a region where a total of 42 seep and vent ecosystems are found in close proximity, the similarity between seep and vent species reached only 28 % (Watanabe et al, 2010;Sibuet and Olu, 1998;Nakajima et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

et al. 2015

View full text Add to dashboard Cite

Abstract. Understanding the ecological processes and connectivity of chemosynthetic deep-sea ecosystems requires comparative studies. In the Guaymas Basin (Gulf of California, Mexico), the presence of seeps and vents in the absence of a biogeographic barrier, and comparable sedimentary settings and depths offers a unique opportunity to assess the role of ecosystem-specific environmental conditions on macrofaunal communities. Six seep and four vent assemblages were studied, three of which were characterised by common major foundation taxa: vesicomyid bivalves, siboglinid tubeworms and microbial mats. Macrofaunal community structure at the family level showed that density, diversity and composition patterns were primarily shaped by seep-and vent-common abiotic factors including methane and hydrogen sulfide concentrations, whereas vent environmental specificities (higher temperature, higher metal concentrations and lower pH) were not significant. The type of substratum and the heterogeneity provided by foundation species were identified as additional structuring factors and their roles were found to vary according to fluid regimes. At the family level, seep and vent similarity reached at least 58 %. All vent families were found at seeps and each seepspecific family displayed low relative abundances (< 5 %). Moreover, 85 % of the identified species among dominant families were shared between seep and vent ecosystems. This study provides further support to the hypothesis of continuity among deep-sea seep and vent ecosystems.

show abstract

Section: The Similarity Between Vents and Seepssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The discovery of unique life endemic to deepsea vents created an entirely new field of marine biology, expressed more recently in the efforts of the Census of Marine Life, to better understand the biogeography and connectivity between hydrothermal oases (Baker et al, 2010b;Moalic et al, 2012). These motivations continue, complemented by renewed commercial interest in the inventory and distribution of seafloor massive sulfide deposits (Hannington et al, 2011), and by advances in quantifying vent discharge on chemical and biogeochemical cycling in the ocean (Amend et al, 2011;German and Seyfried, 2014).…”

Section: Introductionmentioning

confidence: 97%

Where are the undiscovered hydrothermal vents on oceanic spreading ridges?

Beaulieu

Baker

German

2015

Deep Sea Research Part II: Topical Studies in Oceanography

Self Cite

150

107

View full text Add to dashboard Cite

a b s t r a c tIn nearly four decades since the discovery of deep-sea vents, one-third of the length of global oceanic spreading ridges has been surveyed for hydrothermal activity. Active submarine vent fields are now known along the boundaries of 46 out of 52 recognized tectonic plates. Hydrothermal survey efforts over the most recent decade were sparked by national and commercial interests in the mineral resource potential of seafloor hydrothermal deposits, as well as by academic research. Here we incorporate recent data for back-arc spreading centers and ultraslow-and slow-spreading mid-ocean ridges (MORs) to revise a linear equation relating the frequency of vent fields along oceanic spreading ridges to spreading rate. We apply this equation globally to predict a total number of vent fields on spreading ridges, which suggests that 900 vent fields remain to be discovered. Almost half of these undiscovered vent fields (comparable to the total of all vent fields discovered during 35 years of research) are likely to occur at MORs with full spreading rates less than 60 mm/yr. We then apply the equation regionally to predict where these hydrothermal vents may be discovered with respect to plate boundaries and national jurisdiction, with the majority expected to occur outside of states' exclusive economic zones. We hope that these predictions will prove useful to the community in the future, in helping to shape continuing ridgecrest exploration.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

Portail¹,

Olu²,

Escobar³

et al. 2015

Preprint

View full text Add to dashboard Cite

Understanding the ecological processes and connectivity of chemosynthetic deep-sea ecosystems requires comparative studies. In the Guaymas Basin (Gulf of California, Mexico), the presence of seeps and vents in the absence of a biogeographic barrier, and comparable sedimentary settings and depths offers a unique opportunity to assess the role of ecosystem-specific environmental conditions on macrofaunal communities. Six seep and four vent assemblages were studied, three of which were characterised by common major foundation taxa: vesicomyid bivalves, siboglinid tubeworms and microbial mats. Macrofaunal community structure at the family level showed that density, diversity and composition patterns were primarily shaped by seep-and vent-common abiotic factors including methane and hydrogen sulfide concentrations, whereas vent environmental specificities (higher temperature, higher metal concentrations and lower pH) were not significant. The type of substratum and the heterogeneity provided by foundation species were identified as additional structuring factors and their roles were found to vary according to fluid regimes. At the family level, seep and vent similarity reached at least 58 %. All vent families were found at seeps and each seepspecific family displayed low relative abundances (< 5 %). Moreover, 85 % of the identified species among dominant families were shared between seep and vent ecosystems. This study provides further support to the hypothesis of continuity among deep-sea seep and vent ecosystems.

show abstract

Biogeography, Ecology, and Vulnerability of Chemosynthetic Ecosystems in the Deep Sea

Cited by 39 publications

References 117 publications

Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

Where are the undiscovered hydrothermal vents on oceanic spreading ridges?

Comparative study of vent and seep macrofaunal communities in the Guaymas Basin

Contact Info

Product

Resources

About