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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Nematode distribution in ocean margin sediments of the Goban Spur (northeast Atlantic) in relation to sediment geochemistry Soetaert, K.; Vanaverbeke, J.; Heip, C.H.R.; Herman, P.M.J.; Middelburg, J.J.; Sandee, A.; Duineveld, G.C.A. (1997). Nematode distribution in ocean margin sediments of the Goban Spur (northeast Atlantic) in relation to sediment geochemistry. Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 44(9-10): 1671-1683 In: Deep-Sea Research, Part I. Oceanographic Research Papers. Elsevier: Oxford. ISSN 0967-0637; e-ISSN 1879-0119, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 100681 [ download pdf ]

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Trefwoorden

Availability > Food availability Chemical elements > Nonmetals > Atmospheric gases > Nitrogen Chemical elements > Nonmetals > Atmospheric gases > Oxygen > Dissolved gases > Dissolved oxygen Chemistry > Geochemistry Chemistry > Geochemistry > Sediment chemistry Distribution > Ecological distribution Population characteristics > Population density Sediments > Oxic sediments Nematoda [WoRMS] ANE, Atlantic, Goban Spur [Marine Regions] Marien/Kust

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Auteurs		Top
Soetaert, K., meer Vanaverbeke, J., meer Heip, C.H.R., meer Herman, P.M.J., meer	Middelburg, J.J., meer Sandee, A. Duineveld, G.C.A., meer

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Abstract

Nematode density along a depth gradient (206-2760 m) in the northeastern Atlantic (Goban Spur) is linearly and positively related to organic matter mineralization in the sediment. It is estimated that nematodes contribute at most 13% to total carbon turnover, and this contribution decreases with water depth. The vertical distribution of nematodes in the sediment closely follows concentration vs depth profiles of total nitrogen in the sediment. Both nematodes and total nitrogen tend to be more concentrated towards the surface with increasing water depth. There is no indication that nematode vertical distribution is directly influenced by the oxygen penetration in the sediment. However, it is hypothesized that the sediment oxygen concentration can explain the relatively greater importance of smaller organisms in benthic communities with increasing water depth. The nitrogen vs sediment depth profiles are consistent with a greater impact of larger organisms on sediments at the shallow stations and decreased sediment mixing with increasing water depth.

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