Temporal change in megafauna at the Rose Garden hydrothermal vent (Galapagos Rift; eastern tropical Pacific)

Hessler, Robert R.; Smithey, William M.; Boudrias, Michel A.; Keller, Clifford H.; Lutz, Richard A.; Childress, James J.

doi:10.1016/0198-0149(88)90044-1

Cited by 163 publications

(103 citation statements)

References 19 publications

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“…At 9.5uN, Tevnia jerichonana (a siboglinid tubeworm) was identified as a pioneering species that was gradually replaced by thickets of Riftia pachyptila (another siboglinid tubeworm) (Shank et al 1998). Later in the sequence, the mussel Bathymodiolus thermophilus colonized the vents and ultimately displaced the siboglinids (Hessler et al 1988;Lutz et al 2008). This sequence corresponds to a change in the temperature and chemistry of vent fluids (Shank et al 1998).…”

Section: Discussionmentioning

confidence: 99%

“…This sequence corresponds to a change in the temperature and chemistry of vent fluids (Shank et al 1998). Mussels thus outcompete the siboglinid tubeworms, ending up as the last survivors at low activity-and possibly waning-vent fields (Hessler et al 1985;.…”

Section: Discussionmentioning

confidence: 99%

“…The local currents are northwestsoutheast at Lucky Strike and are strongly influenced by the local topography (Khripounoff et al 2008), theoretically exposing the West and North sides more to the currents and the associated supply of particles and organisms and a possibly more intense mixing process. Biotic interactions can also be a potential underlying cue in influencing assemblage distribution on temporal scales (Hessler et al 1988;Lenihan et al 2008;Mullineaux et al 2009). However, it is arduous to assess or quantify the importance of these biotic interactions, particularly when restricted to video imagery transects.…”

Section: Discussionmentioning

confidence: 99%

“…Many recent discoveries of hydrothermal venting have taken place in the South Atlantic, Arctic, West Pacific, and Indian Oceans, but time-series studies remain scarce and are restricted to several well-known and more accessible sites mainly situated in the East Pacific Ocean. Ecological time-series studies have been carried out under conditions of continuous venting on the Galá pagos Rift (Hessler et al 1985(Hessler et al , 1988, the East Pacific Rise (EPR; Fustec et al 1987;Desbruyères 1998), the Juan de Fuca Ridge (JdF; Sarrazin et al 1997), and in some cases, monitoring started right after or during an eruption (9.5uN, EPR: Shank et al 1998;Nees et al 2008;JdF: Tunnicliffe et al 1997;Tsurumi and Tunnicliffe 2001;Marcus et al 2009; Galá pagos Rift: Shank et al 2003). Each of these studies attempts to disentangle community dynamics and assess or propose a succession model.…”

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confidence: 99%

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Community dynamics over 14 years at the Eiffel Tower hydrothermal edifice on the Mid‐Atlantic Ridge

Cuvelier

Sarrazin

Colaço

et al. 2011

Limnology & Oceanography

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The Lucky Strike hydrothermal vent field, situated on the Mid-Atlantic Ridge (MAR), has been visited on a regular basis since 1992. The video imagery analyzed in this study originated from 10 cruises and was acquired either with the Nautile submersible or with the Remotely Operated Vehicle Victor 6000 between 1994 and 2008. Four faunal assemblages and two substratum types were identified on a large mussel-dominated sulfide edifice named ''Eiffel Tower.'' Their dynamics over 14 yr were investigated both at the scale of the entire edifice, between the edifice sides, and at small patch scales, making this the first high-time-resolution long-term variations study on the MAR. Overall percentage of biological colonization and overall mussel coverage were stable on a decadal scale. However, on shorter time scales as well as on smaller spatial scales, significant differences in microbial cover and in individual assemblage coverage and distribution were observed. The small fluctuations in the rather constant overall percentage of colonization (, 50%) were explained by subtle changes in hydrothermal activity, which showed a significant negative correlation. However, not all variations occurring in the community structure could be explained by the hydrothermal activity, whereas the orientation of the edifice appeared to play an important role. We proposed a succession model for the shallower MAR fields, in addition to the first quantification of the rate of change in community dynamics at this slow-spreading ridge. This rate of change appeared to be about 15% slower than that observed on sulfide edifices from faster-spreading ridges in the Northeast Pacific.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Community dynamics over 14 years at the Eiffel Tower hydrothermal edifice on the Mid‐Atlantic Ridge

Cuvelier

Sarrazin

Colaço

et al. 2011

Limnology & Oceanography

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“…These eruptions, such as the ones recorded on the East Pacific Rise near 9150 0 N in 1991 and again in (Haymon et al, 1993Tolstoy et al, 2006;Cowen et al, 2007), have a tremendous impact on the ecosystems present at these sites. Faunal assemblages are being destroyed and nascent diffuse flows develop (Von Damm, 2000), allowing the recolonization of the area by invertebrates, such as tubeworms and bivalves (Hessler et al, 1988;Shank et al, 1998). In this sequential process, the tubeworm Tevnia jerichonana (Jericho worm; Jones, 1985) stands out as an early colonizer of post-eruptive basalt-hosted vents (Mullineaux et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Physiological homogeneity among the endosymbionts of Riftia pachyptila and Tevnia jerichonana revealed by proteogenomics

et al. 2011

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The two closely related deep-sea tubeworms Riftia pachyptila and Tevnia jerichonana both rely exclusively on a single species of sulfide-oxidizing endosymbiotic bacteria for their nutrition. They do, however, thrive in markedly different geochemical conditions. A detailed proteogenomic comparison of the endosymbionts coupled with an in situ characterization of the geochemical environment was performed to investigate their roles and expression profiles in the two respective hosts. The metagenomes indicated that the endosymbionts are genotypically highly homogeneous. Gene sequences coding for enzymes of selected key metabolic functions were found to be 99.9% identical. On the proteomic level, the symbionts showed very consistent metabolic profiles, despite distinctly different geochemical conditions at the plume level of the respective hosts. Only a few minor variations were observed in the expression of symbiont enzymes involved in sulfur metabolism, carbon fixation and in the response to oxidative stress. Although these changes correspond to the prevailing environmental situation experienced by each host, our data strongly suggest that the two tubeworm species are able to effectively attenuate differences in habitat conditions, and thus to provide their symbionts with similar micro-environments.

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An authoritative global database for active submarine hydrothermal vent fields

Beaulieu

Baker

German

et al. 2013

Geochem Geophys Geosyst

263

241

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[1] The InterRidge Vents Database is available online as the authoritative reference for locations of active submarine hydrothermal vent fields. Here we describe the revision of the database to an open source content management system and conduct a meta-analysis of the global distribution of known active vent fields. The number of known active vent fields has almost doubled in the past decade (521 as of year 2009), with about half visually confirmed and others inferred active from physical and chemical clues. Although previously known mainly from mid-ocean ridges (MORs), active vent fields at MORs now comprise only half of the total known, with about a quarter each now known at volcanic arcs and back-arc spreading centers. Discoveries in arc and back-arc settings resulted in an increase in known vent fields within exclusive economic zones, consequently reducing the proportion known in high seas to one third. The increase in known vent fields reflects a number of factors, including increased national and commercial interests in seafloor hydrothermal deposits as mineral resources. The purpose of the database now extends beyond academic research and education and into marine policy and management, with at least 18% of known vent fields in areas granted or pending applications for mineral prospecting and 8% in marine protected areas.

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Temporal change in megafauna at the Rose Garden hydrothermal vent (Galapagos Rift; eastern tropical Pacific)

Cited by 163 publications

References 19 publications

Community dynamics over 14 years at the Eiffel Tower hydrothermal edifice on the Mid‐Atlantic Ridge

Community dynamics over 14 years at the Eiffel Tower hydrothermal edifice on the Mid‐Atlantic Ridge

Physiological homogeneity among the endosymbionts of Riftia pachyptila and Tevnia jerichonana revealed by proteogenomics

An authoritative global database for active submarine hydrothermal vent fields

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