Krill Growth and Condition Investigation, cruise 2007/08 V1 (SIPEX)

• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: biota; oceans; EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL); SIPEX; Krill; Condition; TAG; Lipids; Growth Rates; Fatty Acids; TRAWL; FIELD SURVEYS; R/V AA > R/V Aurora Australis; SHIPS; AMD/AU; CEOS; AMD; ACE/CRC; CONTINENT > ANTARCTICA; OCEAN > SOUTHERN OCEAN; GEOGRAPHIC REGION > POLAR; Southern Ocean; East Antarctica; Antarc*; Antarctica; aurora australis; Euphausia superba; Sea ice
• Online Access: https://researchdata.edu.au/krill-growth-condition-v1-sipex/2820324

Progress Code: completed This work was completed as part of the SIPEX - Sea Ice Physics and Ecosystem eXperiment - voyage. September/October 2007. The work formed part of AAS (ASAC) projects 2337 and 2767. Aspects of krill (Euphausia superba), growth and condition during late winter-early spring off East Antarctica (110 - 130 degrees E) were investigated. We assessed diet and condition of larval and postlarval krill collected from open water and below the ice. Condition was assessed using lipid content, growth rates and digestive gland size; feeding history was assessed using fatty acid profiles and stomach content analysis; and a starvation study investigated the response of krill to long-term food deprivation. Potential food items were analysed for lipid and fatty acid composition. Fatty acid profiles and stomach content analysis revealed winter/early spring feeding strategies of both larval and adult krill. This work was completed as part of AAS (ASAC) project #2337