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Mesopelagic community structure on the southern Kerguelen Axis

conference contribution
posted on 2023-05-23, 13:41 authored by Rowan TrebilcoRowan Trebilco, Andrea WaltersAndrea Walters, Melbourne-Thomas, J, Sophie BestleySophie Bestley, Cox, M, Gastauer, S, Andrew ConstableAndrew Constable
From January to March 2016, the Antarctic Climate and Ecosystems Corporate Research Centre (ACE CRC) led an integrated ecosystem survey voyage on the Southern Kerguelen Axis (the region spanning BANZARE Bank and the Princess Elizabeth Trough (PET), south toward the Antarctic continental shelf and Prydz Bay). The voyage track spanned 8 850 km, comprised of eight sampling transects, which were designed to encompass major environmental transitions in the area (Figure 1). Overarching goals of this voyage were to characterise pelagic food-web structure and major energy pathways in the region, and to pilot methodologies for future ecosystem observation and monitoring. A key component of the study was sampling the mesopelagic community to resolve key drivers of the abundance and biomass of major mesopelagic taxa (fishes, crustaceans, squids and gelatinous zooplankton), which are key prey for higher-trophic levels, and represent an important alternative energy pathway to krill.

History

Publication title

The Kerguelen Plateau: marine ecosystem and fisheries. Proceedings of the Second Symposium

Editors

DC Welsford, J Dell and G Duhamel

Pagination

49-54

ISBN

9781876934309

Department/School

Institute for Marine and Antarctic Studies

Publisher

Australian Antarctic Division

Place of publication

Kingston, Tasmania

Event title

The Kerguelen Plateau: marine ecosystem and fisheries

Event Venue

Hobart

Date of Event (Start Date)

2017-11-13

Date of Event (End Date)

2017-11-15

Rights statement

Copyright 2017 Department of the Environment and Energy, Australian Antarctic Division

Repository Status

  • Restricted

Socio-economic Objectives

Assessment and management of Antarctic and Southern Ocean ecosystems; Ecosystem adaptation to climate change; Expanding knowledge in the biological sciences