FN Archimer Export Format
PT J
TI Aerial surveys to monitor bluefin tuna abundance and track efficiency of management measures
BT 
AF BAUER, Robert
   BONHOMMEAU, Sylvain
   BRISSET, Blandine
   FROMENTIN, Jean-Marc
AS 1:1;2:1;3:1;4:1;
FF 1:PDG-RBE-MARBEC-LHM;2:PDG-RBE-MARBEC-LHM;3:PDG-RBE-MARBEC-LHM;4:PDG-RBE-MARBEC;
C1 IFREMER, UMR Marbec, F-34203 Sete, France.
C2 IFREMER, FRANCE
SI SETE
SE PDG-RBE-MARBEC-LHM
   PDG-RBE-MARBEC
UM MARBEC
IN WOS Ifremer jusqu'en 2018
IF 2.361
TC 20
UR https://archimer.ifremer.fr/doc/00281/39192/37747.pdf
   https://archimer.ifremer.fr/doc/00281/39192/45096.pdf
LA English
DT Article
DE ;Thunnus thynnus;Index of abundance;Fishery-independent;Gulf of Lions;Mediterranean Sea;Strip transect;Distance sampling
AB Conservation and management measures for exploited fish species rely on our ability to monitor variations in population abundance. In the case of the eastern stock of Atlantic bluefin tuna (ABFT), recent changes in management policies have strongly affected the reliability of fishery-dependent indicators due to drastic changes in fishing season/area, fisheries selectivity and strategy. However, fishery-independent indices of abundance are rare for large pelagic fish, and obtaining them is often costly and labor intensive. Here, we show that scientific aerial surveys are an appropriate tool for monitoring juvenile bluefin tuna abundance in the Mediterranean. We present an abundance index based on 62 aerial surveys conducted since 2000, using 2 statistical approaches to deal with the sampling strategy: line and strip transects. Both approaches showed a significant increase in juvenile ABFT abundance in recent years, resulting from the recovery plan established in 2007. Nonetheless, the estimates from the line transect method appear to be more robust and stable. This study provides essential information for fisheries management. Expanding the spatial coverage to other nursery grounds would further increase the reliability and representativeness of this index.
PY 2015
PD AUG
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-research
VL 534
UT 000360989500015
BP 221
EP 234
DI 10.3354/meps11392
ID 39192
ER

EF