Nematode abundance in cold seep sediments of the Nordic Margins (Nyregga, Styregga, Haakon Mosby Mud Volcano)

Saskia Van Gaever; Ann Vanreusel

doi:10.1594/pangaea.803129

Nematode abundance in cold seep sediments of the Nordic Margins (Nyregga, Styregga, Haakon Mosby Mud Volcano)

Citation

Van Gaever S, Vanreusel A (2012). Nematode abundance in cold seep sediments of the Nordic Margins (Nyregga, Styregga, Haakon Mosby Mud Volcano). PANGAEA - Publishing Network for Geoscientific and Environmental Data. Occurrence dataset https://doi.org/10.1594/pangaea.803129 accessed via GBIF.org on 2023-06-03.

Description

Cold-seep environments and their associated symbiont-bearing mega faunal communities create islands of primary production for macro-and meiofauna in the otherwise monotonous and nutrient-poor deep-sea environment. To examine the spatial variation and distribution patterns of metazoan meiobenthos in different seepage-related habitats, samples were collected in two regions off Norway: several pockmarks associated with the Storegga Slide including the Nyegga pockmark area, and the active, methane-venting Haakon Mosby Mud Volcano west of the Barents Sea during the Vicking cruise aboard the RV ''PourquoiPas?'' in May-June 2006. Meiofaunal samples at control sites were sampled with a multiple corer, while the other sites were sampled with push cores operated by the ROV Victor6000.The meiofaunal samples were fixed in 4% buffered formaldehyde and washed over a 32 mm-mesh sieve. Metazoan meiofauna were extracted by density gradient centrifugation. All material was fixed with 4% buffered formalin and stained with Rose Bengal. The metazoan meiofauna was sorted out, enumerated and identified down to major taxa under the stereomicroscope. Afterwards, abundances of Nematodes were depth integrated over the top 5 cm to gain individual abundances per 10 cm**2.

Taxonomic Coverages

Animalia
rank: kingdom

Geographic Coverages

Event: VKGD272/PC-1, Storegga North East ; Event: VKGD272/PC-8, Storegga North East ; Event: VKGD272/PC-14, Storegga North East ; Event: VKGD272/PC-18, Storegga North East ; Event: VKGD275/PC-5, Storegga North East ; Event: VKGD275/PC-6, Storegga North East ; Event: VKGD277/PC-2, Håkon Mosby Mud Volcano ; Event: VKGMTB2, Storegga North East ; Event: VKGMTB3, Nyegga ;

Bibliographic Citations

Contacts

Saskia Van Gaever
originator

Ann Vanreusel
originator

metadata author
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: https://www.pangaea.de

administrative point of contact
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: http://www.pangaea.de