FN Archimer Export Format
PT J
TI Disentangling tropicalization and deborealization in marine ecosystems under climate change
BT 
AF McLean, Matthew
   Mouillot, David
   Maureaud, Aurore
   HATTAB, Tarek
   MacNeil, Aaron
   Goberville, Eric
   Lindegren, Martin
   Engelhard, Georg
   Pinsky, Malin
   AUBER, Arnaud
AS 1:1;2:2;3:3,4;4:5;5:1,6;6:7;7:4;8:8,9;9:10;10:11;
FF 1:;2:;3:;4:PDG-RBE-MARBEC-LHM;5:;6:;7:;8:;9:;10:PDG-RBE-HMMN-LRHBL;
C1 Department of Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
   MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, 34095 Montpellier Cedex, France
   Center for Biodiversity and Global Change, Department of Ecology & Evolutionary Biology, Yale University, New Haven, CT 06520, USA
   Centre for Ocean Life, c/o National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet Bygning 202, 2800 Kgs. Lyngby, Denmark
   MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Avenue Jean Monnet, 34200 Sète, France
   Ocean Frontier Institute, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
   Unité Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Muséum National d’Histoire Naturelle, Sorbonne Université, Université de Caen Normandie, Université des Antilles, CNRS, IRD, 75231 Paris Cedex 05, France
   Centre for Environment, Fisheries & Aquaculture Science (Cefas), Pakeðeld Road, Lowestoft NR33 0HT, UK
   Collaborative Centre for Sustainable Use of the Seas (CCSUS), University of East Anglia, Norwich NR4 7TJ, UK
   Department of Ecology, Evolution, and Natural Resources, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
   IFREMER, Laboratoire Ressources Halieutiques, 150 quai Gambetta, BP699, 62321 Boulogne-sur-Mer, France
C2 UNIV DALHOUSIE, CANADA
   UNIV MONTPELLIER, FRANCE
   UNIV YALE, USA
   UNIV TECH DENMARK (DTU AQUA), DENMARK
   IFREMER, FRANCE
   UNIV DALHOUSIE, CANADA
   MNHN, FRANCE
   CEFAS, UK
   UNIV E ANGLIA, UK
   UNIV NEW BRUNSWICK, USA
   IFREMER, FRANCE
SI SETE
   BOULOGNE
SE PDG-RBE-MARBEC-LHM
   PDG-RBE-HMMN-LRHBL
UM MARBEC
IN WOS Ifremer UPR
   WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 10.9
TC 32
UR https://archimer.ifremer.fr/doc/00720/83243/92018.pdf
LA English
DT Article
CR CGFS : CHANNEL GROUND FISH SURVEY
   INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS)
DE ;community temperature index;fisheries;marine ecology;thermal affinity;bottom trawl
AB As climate change accelerates, species are shifting poleward and subtropical and tropical species are colonizing temperate environments. A popular approach for characterizing such responses is the community temperature index (CTI), which tracks the mean thermal affinity of a community. Studies in marine, freshwater, and terrestrial ecosystems have documented increasing CTI under global warming. However, most studies have only linked increasing CTI to increases in warm-affinity species. Here, using long-term monitoring of marine fishes across the Northern Hemisphere, we decomposed CTI changes into four underlying processes—tropicalization (increasing warm-affinity), deborealization (decreasing cold-affinity), borealization (increasing cold-affinity), and detropicalization (decreasing warm-affinity)—for which we examined spatial variability and drivers. CTI closely tracked changes in sea surface temperature, increasing in 72% of locations. However, 31% of these increases were primarily due to decreases in cold-affinity species, i.e., deborealization. Thus, increases in warm-affinity species were prevalent, but not ubiquitous. Tropicalization was stronger in areas that were initially warmer, experienced greater warming, or were deeper, while deborealization was stronger in areas that were closer to human population centers or that had higher community thermal diversity. When CTI (and temperature) increased, species that decreased were more likely to be living closer to their upper thermal limits or to be commercially fished. Additionally, warm-affinity species that increased had smaller body sizes than those that decreased. Our results show that CTI changes arise from a variety of underlying community responses that are linked to environmental conditions, human impacts, community structure, and species characteristics. 
PY 2021
PD NOV
SO Current Biology
SN 0960-9822
PU Elsevier
VL 31
IS 21
UT 000718161800004
DI 10.1016/j.cub.2021.08.034
ID 83243
ER

EF