FN Archimer Export Format
PT J
TI Aggregative capacity of experimental anchored Fish Aggregating Devices (aFADs) in Northeastern Brazil revealed through electronic tagging data
BT 
AF Véras, Luísa Queiroz
   Capello, Manuela
   Forget, Fabien
   Tolotti, Mariana Travassos
   Véras, Drausio Pinheiro
   DAGORN, Laurent
   Hazin, Fábio Hissa
AS 1:1;2:2;3:2;4:2;5:3;6:2;7:3;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Universidade Federal de Pernambuco, Brazil
   Univ Montpellier, France
   Universidade Federal Rural de Pernambuco, Brazil
C2 UNIV FED PERNAMBUCO UFPE, BRAZIL
   IRD, FRANCE
   UNIV FED RURAL PERNAMBUCO UFRPE, BRAZIL
UM MARBEC
IN WOS Cotutelle UMR
   copubli-int-hors-europe
   copubli-sud
IF 0.885
TC 2
UR https://archimer.ifremer.fr/doc/00665/77751/79875.pdf
LA English
DT Article
DE ;Associative behavior;Acoustic tagging;Moored FADs;Pelagic fish;Artisanal fishing
AB Catches of pelagic fish associated to anchored Fish Aggregating Devices have been responsible for increases in income, fish consumption, and even cultural identity of artisanal fishing communities in many developing countries worldwide. Nonetheless, in Brazil, aFAD fishing is still poorly developed and studied. In this experiment, FADs were anchored offshore the city of Recife (Northeastern Brazil) to investigate the potential of moored buoys in the aggregation of commercially important pelagic species near the coast, as an alternative fishing site for artisanal fishers. The behavior of acoustically tagged fish was investigated to assess whether they were attracted to the FADs and how long they remained associated to them. The results indicated that, although economically important species were found near the FADs, they did not remain associated for long periods. From the four species tagged, Acanthocybium solandri, Coryphaena hippurus, Thunnus atlanticus, and Caranx crysos, only the two latter were detected at the FADs. Both species presented a preference for a specific FAD, with stronger site fidelity being recorded for C. crysos. This species presented Total Resident Times (TRTs) of more than a month and continuous residence times of more than 14 consecutive days. T. atlanticus, on the other hand, remained around the buoys for short time intervals, with a maximum TRT of only two days. Short diurnal excursions far from the FADs and few longer excursions during nighttime were recorded for C. crysos. These results do not support the possible use of moored FADs near the coast of Recife as an alternative fishing site for artisanal fisheries. It is possible that the geomorphological characteristics of the experimental area did not favor the aggregative behavior of large pelagic fish species, such as tunas, around FADs. 
PY 2020
SO Ocean And Coastal Research
SN 2675-2824
PU FapUNIFESP (SciELO)
VL 68
UT 000600345300001
DI 10.1590/s2675-28242020068284
ID 77751
ER

EF