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

• Main Authors: Van Gaever, Saskia, Vanreusel, Ann
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: hermes; hermione; Event label; Latitude of event; Longitude of event; Habitat; Depth, top/min; Depth, bottom/max; DEPTH, sediment/rock; Acantholaimus; Acanthonchus; Actinonema; Aegialoalaimus; Alaimella; Ammotheristus; Amphimonhystera; Amphimonhystrella; Anoplostoma; Anticyathus; Aponema; Araeolaimus; Axonolaimus; Bathynox; Belbolla; Camacolaimus; Campylaimus; Cervonema; Chromadorina; Chromadorita; Chromaspirina; Comesa; Crenopharynx; Cyartonema; Dagda; Daptonema; Desmodora; Desmoscolex; Dichromadora; Diplopeltoides; Diplopeltula; Doliolaimus; Draconematidae; Elzalia; Enoplolaimus; Enoplus; Eurystomina; Fenestrolaimus; Greeffiella; Halalaimus; Halichoanolaimus; Barents Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.803129; https://doi.pangaea.de/10.1594/PANGAEA.803129

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 ... : For each sample a habitat type defined by the HERMIONE Biodiversity integration study of seep associated benthic biota is given. ...