FN Archimer Export Format PT J TI Productivity and Change in Fish and Squid in the Southern Ocean BT AF Caccavo, Jilda Alicia Christiansen, Henrik Constable, Andrew J. Ghigliotti, Laura Trebilco, Rowan Brooks, Cassandra M. Cotte, Cedric Desvignes, Thomas Dornan, Tracey Jones, Christopher D. Koubbi, Philippe Saunders, Ryan A. Strobel, Anneli Vacchi, Marino van de Putte, Anton P. Walters, Andrea Waluda, Claire M. Woods, Briannyn L. Xavier, José C. AS 1:1,2,3;2:4;3:5,6;4:7;5:6,8;6:9;7:10;8:11;9:12,13;10:14;11:15,16;12:12;13:1;14:7;15:17,18;16:12,19;17:;18:19;19:12,20; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;19:; C1 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany Berlin Center for Genomics in Biodiversity Research, Berlin, Germany Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research, Berlin, Germany Laboratory of Biodiversity and Evolutionary Genomics, KU Leuven, Leuven, Belgium Australian Antarctic Division, Kingston, TAS, Australia Centre for Marine Socioecology, University of Tasmania, Hobart, TAS, Australia Institute for the Study of the Anthropic Impacts and the Sustainability in the Marine Environment (IAS), National Research Council of Italy (CNR), Genoa, Italy Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Hobart, TAS, Australia Environmental Studies Program, University of Colorado, Boulder, Boulder, CO, United States LOCEAN Laboratory, Sorbonne Universités (UPMC, University Paris 06)-CNRS-IRD-MNHN, Paris, France Institute of Neuroscience, University of Oregon, Eugene, OR, United States British Antarctic Survey, Cambridge, United Kingdom School of Biological Sciences, University of Bristol, Bristol, United Kingdom Southwest Fisheries Science Center, National Marine Fisheries Service, NOAA Fisheries, La Jolla, CA, United States UFR 918 Terre Environnement Biodiversité, Sorbonne Université, Paris, France Channel and North Sea Fisheries Research Unit, IFREMER, Boulogne-sur-Mer, France Royal Belgian Institute of Natural Sciences, Brussels, Belgium Université libre de Bruxelles (ULB), Brussels, Belgium Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia Department of Life Sciences, Marine and Environmental Sciences Centre, University of Coimbra, Coimbra, Portugal C2 INST A WEGENER, GERMANY BEGENDIV, GERMANY LEIBNIZ INST ZOO & WILDLIFE RES, GERMANY UNIV LEUVEN, BELGIUM AUSTRALIAN ANTARCTIC DIV, AUSTRALIA UNIV TASMANIA, AUSTRALIA CNR IAS, ITALY CSIRO OCEANS & ATMOSPHERE, AUSTRALIA UNIV COLORADO, USA UNIV SORBONNE, FRANCE UNIV OREGON, USA BRITISH ANTARCTIC SURVEY (BAS), UK UNIV BRISTOL, UK NOAA, USA UNIV SORBONNE, FRANCE Channel and North Sea Fisheries Research Unit, IFREMER, Boulogne-sur-Mer, France ROYAL BELGIAN INST NAT SCI, BELGIUM UNIV LIBRE DE BRUXELLES (ULB), BELGIUM UNIV TASMANIA, AUSTRALIA UNIV COIMBRA, PORTUGAL IN DOAJ IF 4.496 TC 18 UR https://archimer.ifremer.fr/doc/00701/81331/85699.pdf LA English DT Article DE ;marine ecosystem assessment;climate change;conservation management;Antarctic;fisheries;notothenioids;myctophids;squid AB Southern Ocean ecosystems are globally important and vulnerable to global drivers of change, yet they remain challenging to study. Fish and squid make up a significant portion of the biomass within the Southern Ocean, filling key roles in food webs from forage to mid-trophic species and top predators. They comprise a diverse array of species uniquely adapted to the extreme habitats of the region. Adaptations such as antifreeze glycoproteins, lipid-retention, extended larval phases, delayed senescence, and energy-conserving life strategies equip Antarctic fish and squid to withstand the dark winters and yearlong subzero temperatures experienced in much of the Southern Ocean. In addition to krill exploitation, the comparatively high commercial value of Antarctic fish, particularly the lucrative toothfish, drives fisheries interests, which has included illegal fishing. Uncertainty about the population dynamics of target species and ecosystem structure and function more broadly has necessitated a precautionary, ecosystem approach to managing these stocks and enabling the recovery of depleted species. Fisheries currently remain the major local driver of change in Southern Ocean fish productivity, but global climate change presents an even greater challenge to assessing future changes. Parts of the Southern Ocean are experiencing ocean-warming, such as the West Antarctic Peninsula, while other areas, such as the Ross Sea shelf, have undergone cooling in recent years. These trends are expected to result in a redistribution of species based on their tolerances to different temperature regimes. Climate variability may impair the migratory response of these species to environmental change, while imposing increased pressures on recruitment. Fisheries and climate change, coupled with related local and global drivers such as pollution and sea ice change, have the potential to produce synergistic impacts that compound the risks to Antarctic fish and squid species. The uncertainty surrounding how different species will respond to these challenges, given their varying life histories, environmental dependencies, and resiliencies, necessitates regular assessment to inform conservation and management decisions. Urgent attention is needed to determine whether the current management strategies are suitably precautionary to achieve conservation objectives in light of the impending changes to the ecosystem. PY 2021 PD JUL SO Frontiers In Ecology And Evolution SN 2296-701X PU Frontiers Media SA VL 9 UT 000670774200001 DI 10.3389/fevo.2021.624918 ID 81331 ER EF