Distribution and abundance of larval fishes collected in the western Bransfield Strait region, 1986-87

Primary tabs

Loeb, V. J. (1991). Distribution and abundance of larval fishes collected in the western Bransfield Strait region, 1986-87. Deep Sea Research Part A, Oceanographic Research Papers, 38(8), 1251-1260.
Metadata
TitleDistribution and abundance of larval fishes collected in the western Bransfield Strait region, 1986-87
AuthorsV. Loeb
AbstractLarval fishes were obtained from 0-50 m Bongo net and stratified 0-200 m Nansen net samples collected in the western Bransfield Strait region during four RACER (Research on Antarctic Coastal Ecosystem Rates) program cruises, December 1986 to March 1987. Three nototheniid species, Nototheniops larseni, Notothenia gibberifrons, and a form tentatively identified as Tremtomus scotti numerically dominated the total catch. Two typically abundant species in this area, Pleuragramma antarcticum and Notothenia kempi, were relatively uncommon. Gear differences, the restricted geographical coverage, and between-year variability in hydrographic conditions may explain species dominance differences between the RACER samples and prior surveys in the Antarctic Peninsula area. Largest abundances occurred in the vicinity of Gerlache Strait and island shelf areas; larvae were infrequently collected in Drake Passage waters. Individual species demonstrated different distributional patterns, suggesting that water mass influence, larval depth distribution and behavioral differences may be involved. Estimated January to March growth rates for N. larseni (0.06 mm day-1) and T. scotti (0.05 mm day-1) are similar but low compared to that of N. gibberifrons (0.12 mm day-1). © 1991.
JournalDeep Sea Research Part A, Oceanographic Research Papers
Date1991
Volume38
Issue8-9
Start page1251
End page1260
ISSN0198-0149
Subjectsfish larvae, ichthyoplankton, Antarctica, Bransfield Strait, Antarctica, Drake Passage, Antarctica, Gerlache Strait, Notothenia gibberifrons, Notothenia kempi, Nototheniops larseni, Pleuragramma antarcticum, Tremtomus scotti
NoteCited By (since 1996):12, Antarctica, Fish and Fisheries

Bookmark

Bookmarks: