Diversity, habitat endemicity and trophic ecology of the fauna of Loki’s Castle vent field on the Arctic Mid-Ocean Ridge

Eilertsen, M.H.; Kongsrud, J.A.; Tandberg Anne, H.S.; Alvestad, T.; Budaeva, N.; Martell, L.; Ramalho, S.P.; Falkenhaug, T.; Huys, R.; Oug, E.; Bakken, T.; Høisæter, T.; Rauch, C.; Carvalho, F.C.; Savchenko, A.S.; Ulvatn, T.; Kongshavn, K.; Berntsen, C.M.; Olsen, B.R.; Pedersen, R.B.

Авторы: Eilertsen Mari Heggernes, Kongsrud Jon Anders, Tandberg Anne Helene Solberg, Alvestad Tom, Budaeva Nataliya, Martell Luis, Ramalho Sofia P., Falkenhaug Tone, Huys Rony, Oug Eivind, Bakken Torkild, Høisæter Tore, Rauch Cessa, Carvalho Francisca C., Savchenko Alexandra S., Ulvatn Tone, Kongshavn Katrine, Berntsen Cassandra Mari, Olsen Bernt Rydland, Pedersen Rolf Birger
Журнал: Scientific reports
Том: 14
Номер: 1
Год издания: 2024
Издательство: Nature Publishing Group
Местоположение издательства: United Kingdom
Номер статьи: 103
DOI: 10.1038/s41598-023-46434-z
Аннотация: Loki’s Castle Vent Field (LCVF, 2300 m) was discovered in 2008 and represents the first black‑smoker vent field discovered on the Arctic Mid‑Ocean Ridge (AMOR). However, a comprehensive faunal inventory of the LCVF has not yet been published, hindering the inclusion of the Arctic in biogeographic analyses of vent fauna. There is an urgent need to understand the diversity, spatialdistribution and ecosystem function of the biological communities along the AMOR, which will inform environmental impact assesments of future deep‑sea mining activities in the region. Therefore, our aim with this paper is to provide a comprehensive inventory of the fauna at LCVF and present a first insight into the food web of the vent community. The fauna of LCVF has a high degree of novelty, with five new species previously described and another ten new species awaiting formal description.Most of the new species from LCVF are either hydrothermal vent specialists or have been reportedfrom other chemosynthesis‑based ecosystems. The highest taxon richness is found in the diffuseventing areas and may be promoted by the biogenic habitat generated by the foundation speciesSclerolinum contortum. The isotopic signatures of the vent community of LCVF show a clear influenceof chemosynthetic primary production on the foodweb. Considering the novel and specialised faunadocumented in this paper, hydrothermal vents on the AMOR should be regarded as vulnerable marine ecosystems and protective measures must therefore be implemented, especially considering the potential threat from resource exploration and exploitation activities in the near future.
Добавил в систему: Савченко Александра Сергеевна

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