NDLI: Macrobenthos of the Novaya Zemlya Trough

Content Provider	Springer Nature Link
Author	Galkin, S. V. Savilova, T. A. Moskalev, L. I. Kucheruk, N. V.
Copyright Year	2010
Abstract	During the 54th cruise of the R/V Akademik Mstislav Keldysh the macrobenthos of the Novaya Zemlya Trough was studied using a Sigsby trawl along the submeridional transect near 75°30′N latitude at a depth range from 68 to 362 m. In total, 140 species of bottom animals were found. The relative role of the taxons was assessed using three indices: the number, biomass, and energy flow. Similarity indices were used for the comparison of the samples. The new material greatly contributes to the data on the composition of the fauna and the structure of the communities of the studied region. It was revealed that small scyphozoid polyps and sipunculoids play an important role in the trough’s community. The presence of the community dominated by Ophiocten sericeum (with the important role of small bivalves) was revealed for the first time not only at the eastern by also at the western slope of the Novaya Zemlya Trough. The sharpest changes in the composition and structure of the bottom community were confined to the zone of the transition from the trough floor to the slope. These changes are determined by the specificity of the macrorelief (of the floor and slope), the composition of the ground (soft brown silts abound in rhizopods and dense gray silts with an admixture of pebbles), and possibly by the hydrodynamic processes near the bottom.
Starting Page	933
Ending Page	944
Page Count	12
File Format	PDF
ISSN	00014370
Journal	Oceanology
Volume Number	50
Issue Number	6
e-ISSN	15318508
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2010-12-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Oceanography
Content Type	Text
Resource Type	Article
Subject	Oceanography

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