Salp distribution and size composition in the Atlantic sector of the Southern Ocean

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Kawaguchi, S., Siegel, V., Litvinov, F., Loeb, V., & Watkins, J. (2004). Salp distribution and size composition in the Atlantic sector of the Southern Ocean. Deep-Sea Research Part II: Topical Studies in Oceanography, 51(12), 1369-1381. doi:10.1016/j.dsr2.2004.06.017
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TitleSalp distribution and size composition in the Atlantic sector of the Southern Ocean
AuthorsS. Kawaguchi, V. Siegel, F. Litvinov, V. Loeb, J. Watkins
AbstractSalp abundance and length frequency were measured during the large-scale CCAMLR 2000 Survey conducted in the Atlantic Sector of the Southern Ocean in the 1999/2000 season. Results from regional surveys around Elephant Island in 1994/95 and 1996/97 seasons also were examined. During the CCAMLR 2000 Survey, salp abundance was higher in the Antarctic Peninsula and South Sandwich Island areas than in the central Scotia Sea. The probable reason for this pattern is a negative relationship with phytoplankton abundance; the central Scotia Sea having greater phytoplankton concentrations than required for optimal salp filter-feeding performance. Cluster analysis of salp size composition resulted in three cluster groups for each of the three surveys. Clusters comprising large salps occurred in warmer waters in all three surveys. The size composition of the salp populations suggests that the timing of intense asexual reproductive budding was earlier in warmer waters. As surface water temperatures generally decrease from north to south, and increase from spring to summer, the general spatio-temporal pattern of asexual reproduction by budding is likely to proceed from north to south as the summer season progresses. © 2004 Elsevier Ltd. All rights reserved.
JournalDeep-Sea Research Part II: Topical Studies in Oceanography
Date2004
Volume51
Issue12-13 SPEC.ISS.
Start page1369
End page1381
ISSN09670645
SubjectsRegional surveys, Salp distribution, Surface water temperatures, Climate change, Large scale systems, Marine biology, Ocean habitats, Surface waters, Surveying, Oceanography, cluster analysis, filter feeder, phytoplankton, population distribution, spatial distribution, oceanic regions, Southern Ocean, World, elephant, Salpida
NoteCited By (since 1996):12, CODEN: DSROE

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