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Meiobenthos of the central Arctic Ocean with special emphasis on the nematode community structure
Vanreusel, A.; Clough, L.M.; Jacobsen, K.; Ambrose, W.; Jivaluk, J.; Ryheul, V.; Herman, R.; Vincx, M. (2000). Meiobenthos of the central Arctic Ocean with special emphasis on the nematode community structure. Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 47(10): 1855-1879. dx.doi.org/10.1016/S0967-0637(00)00007-8
In: Deep-Sea Research, Part I. Oceanographic Research Papers. Elsevier: Oxford. ISSN 0967-0637; e-ISSN 1879-0119
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| Trefwoorden |
Aquatic communities > Benthos > Meiobenthos
Aquatic communities > Benthos > Zoobenthos
Aquatic organisms > Marine organisms > Aquatic animals > Marine invertebrates
Composition > Community composition
Spatial variations
Monhystera Bastian, 1865 [WoRMS]; Nematoda [WoRMS]
Pitcairn I. [Marine Regions]
Marien/Kust |
| Author keywords |
meiobenthos; nematodes; central Arctic Ocean; community analysis |
| Auteurs | | Top |
- Vanreusel, A.
- Clough, L.M.
- Jacobsen, K.
- Ambrose, W.
|
- Jivaluk, J.
- Ryheul, V.
- Herman, R.
- Vincx, M.
|
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| Abstract |
We investigated the abundance of the meiobenthos and the biomass and community structure of the nematodes in the central Arctic Ocean along two separate transects during 1991 and 1994. Meiobenthos abundances ranged from < 100 to 600 individuals per 10 cm², in the same order of magnitude as in other oligotrophic areas of the world's deep ocean. Nematodes were the numerically dominant meiofaunal group at every station. Nematode biomass ranged from < 1 to 48 µg dry weight per 10 cm². A combination of water depth and latitude explained 55% of the variability among stations in nematode biomass and 67% of the variability of total abundance, implying that both vertical and advective fluxes are important sources of food to the meiofaunal communities. The dominant nematode genus was Monhystera, a detrivorous/bacterivorous deposit feeder, suggesting that bacteria may play an important role in the food web of the meiobenthos in the Central Arctic. Multivariate analysis of genera abundances revealed differences among stations in the Eurasian and Amerasian Basins. During 1994, however, the deep stations in the Eurasian Basin were more similar to the other Amerasian stations, while the single deep station in the Makarov Basin was most similar to the other Eurasian Basin stations. The structure of meiofaunal communities in the central Arctic may provide insight into spatial variability in the Arctic Ocean. |
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