Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea

Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea

We studied the relationship between the proximity of land and the distribution and swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill swarms identified with a Simrad EK60 (38 kHz, 120 kHz) echosounder were grouped into 4 categories according to dist...

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Veröffentlicht in:Marine ecology. Progress series (Halstenbek) 2010-06, Vol.409, p.157-170
Hauptverfasser: Klevjer, TA, Tarling, GA, Fielding, S
Format: Artikel
Sprache:eng
Schlagworte:
Euphausia
Euphausia superba
Marine
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Zusammenfassung:We studied the relationship between the proximity of land and the distribution and swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill swarms identified with a Simrad EK60 (38 kHz, 120 kHz) echosounder were grouped into 4 categories according to distance from shoreline: 0 to 50 km, 50 to 100 km, 100 to 200 km and >200 km. Cross-sectional areas of swarms were significantly larger inshore, with a mean value of 120 m super(2) in the 0 to 50 km zone compared to
ISSN:0171-8630
1616-1599
DOI:10.3354/meps08602