Cephalopods of the northern Mid-Atlantic Ridge.

Vecchione, Michael, Young, Richard E. and Piatkowski, Uwe (2010) Cephalopods of the northern Mid-Atlantic Ridge. Marine Biology Research, 6 (1). pp. 25-52. DOI 10.1080/17451000902810751.

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Abstract

A two-leg cruise of R/V G. O. Sars in summer of 2004 along the Mid-Atlantic Ridge explored the diversity and distribution patterns of pelagic and non-hydrothermal bottom communities in the vicinity of the northern Mid-Atlantic Ridge. In total, 1295 cephalopods were caught, representing 56 species. Differences in species composition and size were apparent among the various types of trawls used. The Aakra trawl and bottom trawl caught the largest numbers of species (38 and 34, respectively); size of cephalopods was directly related to the size of the net. Many more species were caught in the southern part of the study area than farther north. The most abundant species was Gonatus steenstrupi, found mostly in the northern part of the study area. A few abundant species, such as Mastigoteuthis agassizii, were found throughout the region, with no clear indication that their northern or southern distributional limits occur within the area sampled. Several benthic and one pelagic species, all taken in small numbers, were captured only in the region of the Charlie Gibbs Fracture Zone. We found many species at very low numbers (i.e. 37 species with <10 specimens in all gear types combined).

Document Type: Article
Keywords: Bathypelagic, deep sea, distribution, epibenthic, mesopelagic, octopods, squids, trawling-gear comparisons, zoogeography
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1080/17451000902810751
ISSN: 1745-1000
Projects: Future Ocean
Date Deposited: 18 May 2010 13:13
Last Modified: 25 Jun 2018 11:16
URI: http://oceanrep.geomar.de/id/eprint/4806

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