FN Archimer Export Format
PT J
TI High-Resolution Acoustic Cameras Provide Direct and Efficient Assessments of Large Demersal Fish Populations in Extremely Turbid Waters
BT 
AF Artero, Celine
   Marchetti, Simon
   Bauer, Eric
   Viala, Christophe
   Noël, Claire
   Koenig, Christopher
   Berzins, Rachel
   Lampert, Luis
AS 1:1,2;2:3;3:3;4:4;5:3;6:2;7:1;8:5;
FF 1:;2:;3:;4:;5:;6:;7:;8:PDG-ODE-DYNECO-PELAGOS;
C1 Office Français de la Biodiversité (ex Office National de la Chasse et de la Faune Sauvage), 97338 Cayenne CEDEX, French Guiana
   Coastal and Marine Laboratory, Florida State University, St Teresa Beach, FL 32358, USA
   SEMANTIC T.S., 83110 Sanary-sur-Mer, France
   Seaviews, 13600 La Ciotat, France
   Institut Français de Recherche Pour l’Exploitation de la MER, Dyneco/Pelagos, 29280 Plouzané, France
C2 OFB, FRANCE
   UNIV FLORIDA STATE, USA
   SEMANTIC TS, FRANCE
   SEAVIEWS, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-DYNECO-PELAGOS
IN WOS Ifremer UPR
   DOAJ
   copubli-france
   copubli-int-hors-europe
IF 2.838
TC 12
UR https://archimer.ifremer.fr/doc/00687/79907/82809.pdf
LA English
DT Article
DE ;fish stock survey;turbid waters;acoustic camera;demersal fish;distribution;detectability
AB Monitoring fish species populations in very turbid environments is challenging. Acoustic cameras allow work in very poor visibility but are often deployed as a fixed observation point, limiting the scope of the survey. A BlueView P900-130 acoustic camera was deployed in rocky marine habitats off the coast of French Guiana in order to assess the total abundance, size structure and spatial distribution of a demersal fish population. The relevancy of using an acoustic camera to achieve these three objectives was evaluated by comparing acoustic data to those obtained from fishing surveys. The detection and identification of large demersal fish species were possible with the shape and size of the acoustic signal and acoustic shadow silhouette as well as swimming behavior. Mobile surveys combined with stationary surveys increased the probability of distinguishing individuals from inanimate objects. Estimated total length based on the acoustic signal underestimated the actual length of fish measured on deck, but the data showed the same trends in spatial and temporal variation. Acoustic cameras overcame the extreme lack of visibility by increasing knowledge of fish use of habitat, therefore providing much more efficiency in the effort, more accurate data on the abundance, size structure and spatial distribution than the fishing method. Thus, despite few limitations, acoustic camera surveys are far superior to fishing surveys in evaluating large demersal fish stock status. 
PY 2021
PD FEB
SO Applied Sciences
SN 2076-3417
PU MDPI AG
VL 11
IS 4
UT 000632124600001
DI 10.3390/app11041899
ID 79907
ER

EF