FN Archimer Export Format
PT J
TI Ex situ  and  in situ  target strength measurements of European anchovy in the Bay of Biscay
BT 
AF Sobradillo, B
   Boyra, G
   Pérez-Arjona, I
   Martinez, U
   Espinosa, V
   O’Driscoll, Richard
AS 1:1;2:1;3:2;4:1;5:2;6:;
FF 1:;2:;3:;4:;5:;6:;
C1 Marine Division, Azti-Tecnalia, Herrera kaia, portualdea z/g, Pasaia 20110, Spain
   Institut d’Investigació per a la Gestió Integrada de Zones Costaneres, Universitat Politècnica de València, C/Paranimf 1, Grau de Gandía, València 46730, Spain
C2 AZTI TECNALIA, SPAIN
   UNIV POLITECN VALENCIA, SPAIN
IF 3.906
TC 4
UR https://archimer.ifremer.fr/doc/00676/78850/81125.pdf
   https://archimer.ifremer.fr/doc/00676/78850/81126.docx
LA English
DT Article
CR PELGAS
DE ;Engraulis encrasicolus;ex situ;in situ;method of fundamental solutions;target strength
AB This study measures the dorsal aspect target strength (TS; dB re 1 m2) and TS–length (standard length, SL; cm) relationships for European anchovy, attained both ex situ and in situ in two different seasons across 7 years in the Bay of Biscay. The measurements were made at three frequently used acoustic frequencies (38, 120, and 200 kHz). A backscattering model for physostome fish was utilized to help interpret the results. The obtained experimental mean TS for anchovies with an SL of 3.5–19.5 cm was −44.6 (±2.3), −46.9 (±3), and −48.4 (±2.7) dB at 38, 120, and 200 kHz, respectively, yielding b20 values of −66.4, −68.7, and −70.4 dB, respectively. The results were consistent across seasons and between in situ and ex situ conditions, presenting TS–length relationships with statistically significant slopes (p-values <0.05) for all frequencies. This research represents part of a series of efforts planned to obtain a comprehensive TS vs. length and depth relationship to update the acoustic assessment methodology of European anchovy in the Bay of Biscay. 
PY 2021
PD JUN
SO Ices Journal Of Marine Science
SN 1054-3139
PU Oxford University Press (OUP)
VL 78
IS 3
UT 000731911900002
BP 782
EP 796
DI 10.1093/icesjms/fsaa242
ID 78850
ER

EF