Tubeworm-associated permanent meiobenthic communities from two chemically different hydrothermal vent sites on the East Pacific Rise

Gollner, Sabine; Zekely, Julia; Govenar, Breea; Bris, Nadine Le; Nemeschkal, H. L.; Fisher, Charles R.; Bright, Monika

doi:10.3354/meps337039

Cited by 40 publications

(62 citation statements)

References 31 publications

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“…In the present study, nematode mean wet weight can reach values 100 times higher than in Vanreusel et al 1997, with a peak of 30.5 μg wet wt in the wood of the most active site (site 2). On the EPR, nematode biomass was 20 times lower than the values observed in the present study (Gollner et al 2007). Biomass values reported in this study are for most samples consistent with values reported from a nematofauna investigated in a seamount close to the Fig.…”

Section: Discussionsupporting

confidence: 78%

“…Cephalochaetosoma and Halomonhystera, reported as the dominant genera in the nematofauna associated with mussel beds in the MAR (Sarrazin et al in press), dominated slate and bone recovered after 9 months (Table 4). Nematodes reported from the MAR (Zekely et al 2006a;Cuvelier et al 2014;Sarrazin et al in press), the North Fiji Basin (Vanreusel et al 1997), and other Pacific hydrothermal sites (Flint et al 2006;Zekely et al 2006a;Gollner et al 2007Gollner et al , 2010b were dominated by few nematode taxa. The richest nematode diversity was reported in soft sediments associated with Bathymodiolus mussels from the North Fiji basin with over 30 genera identified (Vanreusel et al 1997).…”

Section: Discussionmentioning

confidence: 99%

“…To our knowledge, information on hydrothermal vent nematode biomass is reported exclusively by two studies (Vanreusel et al 1997;Gollner et al 2007). In the deep-sea HV of the North Fiji Basin, the mean weight was between 0.23 and 0.35 μg wet wt in active HVs and 0.15 μg wet wt in inactive sites (Vanreusel et al 1997).…”

Section: Discussionmentioning

confidence: 99%

“…Whilst mega-and macrofauna in HVs have been studied since their discovery, the ecology of meiofaunal organisms has only recently been included in vent studies (Tsurumi et al 2003;Zekely et al 2006a, b;Limén et al 2007;Gollner et al 2007Gollner et al , 2010aCopley et al 2007;Sarrazin et al in press). Several HV habitats, from inactive bare basalts (Gollner et al 2010b) and sediments (Vanreusel et al 1997) to diffuse flow areas colonized by macrofaunal assemblages (Zekely et al 2006a, c), host meiofaunal communities characterized by low abundance and diversity, linked with the abiotic and biotic conditions of the habitat (Gollner et al 2010b;Zekely et al 2006a, c;Degen et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Rapid colonisation by nematodes on organic and inorganic substrata deployed at the deep-sea Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge)

et al. 2015

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Despite the fragmented nature of hydrothermal vent (HV) fields, nascent vent sites are rapidly colonized by a pool of regional species. While succession of large animals at vents is relatively well established, we lack information on the associated meiofauna, in particular, on nematodes. The aim of the present study is to investigate the process of colonisation after 9 months of organic (wood and bone) and inorganic (slate) substrata by nematode assemblages deployed at the Eiffel Tower hydrothermal edifice on the Lucky Strike vent field on the Mid-Atlantic Ridge (MAR), at varying distances from visible hydrothermal activity. Abundance, biomass and diversity of colonising nematodes were compared with the results from an earlier similar two-year experiment. Near the vents, nematodes preferred inorganic substrata while in areas not influenced by vent activity, organic substrata were preferred. Nematode females dominated at almost all sites while numerous females at the ovigerous stage and juveniles were reported near the vent emissions, suggesting that nematode populations reproduce well after just 9 months. Our nine-month experiment on the MAR showed that the type of substratum influenced significantly the composition of colonising nematodes, while after two years, the community structure was instead influenced by hydrothermal activity.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rapid colonisation by nematodes on organic and inorganic substrata deployed at the deep-sea Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge)

et al. 2015

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“…In recent years, the deep-sea hydrothermal vent meiofauna has increasingly gained interest and several studies have been published (Vanreusel et al 1997;Tsurumi et al 2003;Zekely et al 2006a, b;Copley et al 2007;Gollner et al 2007Gollner et al , 2010bGollner et al , 2013Limén et al 2007;Degen et al 2012;Cuvelier et al 2014;Sarrazin et al 2015). Meiofauna is considered to contribute up to 20% of the total diversity known from deep-sea hydrothermal vents (Bright 2006).…”

Section: Meiofauna From Hydrothermal Ventsmentioning

confidence: 99%

Characteristics of meiofauna in extreme marine ecosystems: a review

et al. 2017

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Extreme marine environments cover more than 50% of the Earth's surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life conditions. Extreme marine environments are sometimes associated with ephemeral and unstable ecosystems, but can host abundant, often endemic and welladapted meiofaunal species. In this review, we present an integrated view of the biodiversity, ecology and physiological responses of marine meiofauna inhabiting several extreme marine environments (mangroves, submarine caves, Polar ecosystems, hypersaline areas, hypoxic/anoxic environments, hydrothermal vents, cold seeps, carcasses/sunken woods, deep-sea canyons, deep hypersaline anoxic basins [DHABs] and hadal zones). Foraminiferans, nematodes and copepods are abundant in almost all of these habitats and are dominant in deep-sea ecosystems. The presence and dominance of some other taxa that are normally less common may be typical of certain extreme conditions. Kinorhynchs are particularly well adapted to cold seeps and other environments that experience drastic changes in salinity, rotifers are well represented in polar ecosystems and loriciferans seem to be the only metazoan able to survive multiple stressors in DHABs. As well as natural processes, human activities may generate stressful conditions, including deoxygenation, acidification and rises in temperature. The behaviour and physiology of different meiofaunal taxa, such as some foraminiferans, nematode and copepod species, can provide vital information on how organisms may respond to these challenges and can provide a warning signal of anthropogenic impacts. From an evolutionary perspective, the discovery of new meiofauna taxa from extreme environments very often sheds light on phylogenetic relationships, while understanding how meiofaunal organisms are able to survive or even flourish in these conditions can explain evolutionary pathways. Finally, there are multiple potential economic benefits to be gained from ecological, biological, physiological and evolutionary studies of meiofauna in extreme environments. Despite all the advantages offered by meiofauna studies from extreme environments, there is still an urgent need to foster meiofauna research in terms of composition, ecology, biology and physiology focusing on extreme environments.

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Hydrothermal Vents: Oases at Depth

Monaco¹,

Prouzet²

2015

Marine Ecosystems

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The deep ocean, often called the abyss, covers 66% of the planet. Schematically, it is the marine zone where there is not enough light to allow plants to grow. In fact, the lightened part of the ocean is shallow and does not exceed a few hundred meters; the rest of the ocean can reach much greater depths (11 km in the Mariana Trench) and is in complete darkness except for slight glows of bioluminescence. In the absence of local organic production, the organisms living at depth subsist due to organic matter produced in surface waters. This organic matter, in the form of decomposed matter, feces and molts, is clumped together by secretions from gelatinous organisms, sediments at depth and is degraded under the action of heterotrophic microbial communities, or is being recycled by pelagic organisms. Stratification of the water column, depth, surface production and seasonal variations as well as distance from continental shelves directly affect the flow of organic matter that reaches deep sediments. Generally speaking, the further we move away from the coast, the greater the depth, the lower the organic input and consequently, the lower the benthic biomass. Production in the abyssis approximately a hundredth of the primary production at the surface and benthic biomass expressed in fresh weight rarely exceeds 2 g/m 2. Only some populations of filter-feeding Chapter written by Jozée SARRAZIN and Daniel DESBRUYÈRES.

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Tubeworm-associated permanent meiobenthic communities from two chemically different hydrothermal vent sites on the East Pacific Rise

Cited by 40 publications

References 31 publications

Rapid colonisation by nematodes on organic and inorganic substrata deployed at the deep-sea Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge)

Rapid colonisation by nematodes on organic and inorganic substrata deployed at the deep-sea Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge)

Characteristics of meiofauna in extreme marine ecosystems: a review

Hydrothermal Vents: Oases at Depth

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