Journal ArticleDOI
The small-sized benthic biota of the Håkon Mosby Mud Volcano (SW Barents Sea slope)
Reads0
Chats0
TLDR
In this paper, the authors carried out a sampling program to assess the activity, biomass and composition of the small-sized benthic biota around the active mud-oozing and methane-seeping Hakon Mosby Mud Volcano (HMMV) on the SW Barents Sea slope, Northern North-Atlantic.About:
This article is published in Journal of Marine Systems.The article was published on 2005-04-01. It has received 53 citations till now. The article focuses on the topics: Meiobenthos & Mud volcano.read more
Citations
More filters
Book ChapterDOI
Temporal change in deep-sea benthic ecosystems: a review of the evidence from recent time-series studies
Adrian G. Glover,Andrew J. Gooday,David M. Bailey,David S.M. Billett,Pierre Chevaldonné,Ana Colaço,Jonathan T. Copley,Daphne Cuvelier,Daniel Desbruyères,V. Kalogeropoulou,Michael Klages,Nikolaos Lampadariou,Christophe Lejeusne,Nélia C. Mestre,Gordon L.J. Paterson,Thierry Perez,Henry A. Ruhl,Jozée Sarrazin,Thomas Soltwedel,Eulogio H. Soto,Sven Thatje,Anastasios Tselepides,S. Van Gaever,Ann Vanreusel +23 more
TL;DR: The evidence for long-term changes both in biologically driven, sedimented, deep-sea ecosystems (e.g. abyssal plains) and in chemosynthetic ecosystems that are partially geologically driven, such as hydrothermal vents and cold seeps is assessed.
Journal ArticleDOI
Meiobenthos at the Arctic Håkon Mosby Mud Volcano, with a parental-caring nematode thriving in sulphide-rich sediments
TL;DR: Diversity was lowest in the sulphidic, microbial mat sediments that supported the highest standing stock, with unusually high densities of 1 nematode species related to Geomonhystera disjuncta, and the proliferation of only selected meiobenthic species supported by chemosynthetically derived carbon suggests that, in addition to the sediment geochemistry, the reduced meiOBenthic diversity may equally be related to the trophic resource specificity in HMMV sub
Journal ArticleDOI
Ecology and biogeography of free-living nematodes associated with chemosynthetic environments in the deep sea: a review.
TL;DR: It seems that shallow water relatives, rather than typical deep-sea taxa, have successfully colonized the reduced sediments of seeps at large water depth, supporting rather the importance of local adaptation, than that of long distance distribution.
Journal ArticleDOI
Deep-sea habitat heterogeneity influence on meiofaunal communities in the Gulf of Guinea
Abstract: To estimate the degree of spatial heterogeneity of benthic deep-sea communities, we carried out a multiple-scale (from m's to 200 km) investigation in the Congo-Angola margins (Equatorial West African margin, 3150–4800 m) in which we examined the metazoan meiofauna at a variety of habitats along the Congo Channel system and in the associated cold seep. We investigate the structure, density, vertical distribution patterns in the sediment and biomass of meiofaunal communities in the Gulf of Guinea and how they are controlled by hydrologic and biogeochemical processes. The meiofaunal communities in the Gulf of Guinea were shaped by heterogeneous conditions on the margin, and reflect the multiple-scale spatial variability that corresponds with the different identified habitats. The two control sites, located at >100 km away from the canyon, were inhabited by very dense and the most diverse meiobenthic communities. Similar meiobenthic communities inhabited the transition zone between the canyon and the cold seep. Sites located along the Congo Channel were obviously affected by the local high-velocity bottom currents and unstable sedimentary conditions in this active submarine system. Extremely low meiobenthic densities and very low proportions in the most surficial sediment layers provided evidence for recently highly disturbed sediments at these sites. The remote operated vehicle (ROV) Victor 6000 provided images of the cold seep, showing a patchy distribution of several types of patchy distributed megafaunal communities dominated by three key symbiotic taxa (Mytilidae, Vesicomyidae and Siboglinidae). These cold seep sediments were colonised by a unique meiobenthic community, characterised by a high small-scale (m's) patchiness, low species richness and the prominent dominance of two large-sized nematode species: Sabatieria mortenseni, which is a cosmopolitan nematode known from littoral habitats, and an undescribed Desmodora species. The high individual body weight of S. mortenseni and its dominance at the cold seep site resulted in a significantly higher nematode biomass at the seep compared to the surrounding sites. In addition, the vertical nematode profiles, with maximum proportions in subsurficial layers, points to a chemosynthesis-based meiobenthic community in this cold seep, in contrast to the phytodetritus-based communities at the control sites and at the transition zone.
Journal ArticleDOI
Spatial distribution of mud flows, chemoautotrophic communities, and biogeochemical habitats at Håkon Mosby Mud Volcano
Kerstin Jerosch,Michael Schlüter,Jean-Paul Foucher,Anne-Gaëlle Allais,Michael Klages,Christian Edy +5 more
TL;DR: In this paper, the Hakon Mosby Mud Volcano (HMMV) was studied by several dives with the Remotely Operated Vehicle Victor6000 and a high resolution microbathymetric map was derived.
References
More filters
Journal ArticleDOI
A marine microbial consortium apparently mediating anaerobic oxidation of methane
Antje Boetius,Katrin Ravenschlag,Carsten J. Schubert,Dirk Rickert,Friedrich Widdel,Armin Gieseke,Rudolf Amann,Bo Barker Jørgensen,Ursula Witte,Olaf Pfannkuche +9 more
TL;DR: In this article, the authors provide microscopic evidence for a structured consortium of archaea and sulphate-reducing bacteria, which are identified by fluorescence in situ hybridization using specific 16S rRNA-targeted oligonucleotide probes.
Journal ArticleDOI
A Method Of Linking Multivariate Community Structure To Environmental Variables
KR Clarke,M. Ainsworth +1 more
BookDOI
HANDBOOK Of Methods in Aquatic Microbial Ecology
TL;DR: This work focuses on the isolation and culture of Marine Protists from Estuarine, Littoral, Psammolittoral and Sublittoral Waters and the identification, Enumeration, and Diversity of Anaerobic and Microaerobic Protists.
Journal ArticleDOI
Biogeography, biodiversity and fluid dependence of deep-sea cold-seep communities at active and passive margins
Myriam Sibuet,Karine Olu +1 more
TL;DR: The geographic distribution of seeps, the variations of origin and composition of fluids, and rates of fluid flow are presented as they are important factors which explain the spatial heterogeneity and the biomass of biological communities.