FN Archimer Export Format
PT J
TI Rebuilding fish communities: the ghost of fisheries past and the virtue of patience
BT 
AF COLLIE, Jeremy
   ROCHET, Marie-Joelle
   BELL, Richard
AS 1:1;2:2;3:1;
FF 1:;2:PDG-RBE-EMH;3:;
C1 Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882, USA.
   Inst Francais Exploitat Mer, F-44311 Nantes 03, France.
C2 UNIV RHODE ISL, USA
   IFREMER, FRANCE
SI NANTES
SE PDG-RBE-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 4.126
TC 21
UR https://archimer.ifremer.fr/doc/00198/30930/29306.pdf
LA English
DT Article
CR IBTS 2000
   IBTS 2001
   IBTS 2002
   IBTS 2003
   IBTS 2004
   IBTS 2005
   IBTS 2006
   IBTS 2007
   IBTS 2008
   IBTS 2009
   IBTS 92/2
   IBTS 93/1
   IBTS 93/2
   IBTS 94/1
   IBTS 94/2
   IBTS 95/1
   IBTS 95/2
   IBTS 96/1
   IBTS 96/2
   IBTS 97
   IBTS 98
   IBTS 99
   IYFS 82
   IYFS 83
   IYFS 84
   IYFS 85
   IYFS 86
   IYFS 87
   IYFS 88
   IYFS 89
   IYFS 90
   IYFS 91
   IYFS 92 - IBTS 92/1
BO Thalassa
DE ;biodiversity;fish community;Georges Bank;multispecies model;North Sea;restoration ecology;selective fishing
AB The ecosystem approach to management requires the status of individual species to be considered in a community context. We conducted a comparative ecosystem analysis of the Georges Bank and North Sea fish communities to determine the extent to which biological diversity is restored when fishing pressure is reduced. First, fishing mortality estimates were combined to quantify the community-level intensity and selectivity of fishing pressure. Second, standardized bottom-trawl survey data were used to investigate the temporal trends in community metrics. Third, a size-based, multispecies model (LeMans) was simulated to test the response of community metrics to both hypothetical and observed changes in fishing pressure in the two communities. These temperate North Atlantic fish communities have much in common, including a history of overfishing. In recent decades fishing pressure has been reduced, and some species have started to rebuild. The Georges Bank fishery has been more selective, and fishing pressure was reduced sooner. The two communities have similar levels of size diversity and biomass per unit area, but fundamentally different community structure. The North Sea is dominated by smaller species and has lower evenness than Georges Bank. These fundamental differences in community structure are not explained by recent fishing patterns. The multispecies model was able to predict the observed changes in community metrics better on Georges Bank, where rebuilding is more apparent than in the North Sea. Model simulations predicted hysteresis in rebuilding community metrics toward their unfished levels, particularly in the North Sea. Species in the community rebuild at different rates, with smaller prey species outpacing their large predators and overshooting their pre-exploitation abundances. This indirect effect of predator release delays the rebuilding of community structure and biodiversity. Therefore community rebuilding is not just the sum of single-species rebuilding plans. Management strategies that account for interspecific interactions will be needed to restore biodiversity and community structure.
PY 2013
PD MAR
SO Ecological Applications
SN 1051-0761
PU Ecological Soc Amer
VL 23
IS 2
UT 000316559800010
BP 374
EP 391
DI 10.1890/12-0877.1
ID 30930
ER

EF