Publication Date:
2021-05-19
Description:
The chub mackerel Scomber japonicus and anchovy Engraulis anchoita commercial landings at the Mar del Plata (Buenos Aires prov., Argentina) seaport during the September 1999-January 2000 period are studied. A total of 14 chub mackerel samples were taken for total length measurements exclusively and 5 anchovy sub-samples and 1 chub mackerel sub-sample were analyzed to record individual data total length, weight, sex, sexual stage, age from otoliths readings . Most of the fish caught for both species were adults and only a small fraction of chub mackerel juveniles was found in December 1999. Length-at-fifty-percent-maturity was calculated, length-weight and length-age relationships were fitted and length growth parameters estimated. Sea surface temperature SST in the fishing area was recorded on board of a sampling boat. Chub mackerel CPUE, that showed a decrease when SST increased, was calculated. Data from landings of the different fleets for both species as well as the significance of these resources to the small purse-seine fleet economy were analyzed.
Description:
Publisher permission
Description:
Published
Description:
Engraulidae, Engraulis anchoita, Scombridae, Scomber japonicus, anchoita, caballa, pesquería comercial, estructura poblacional, captura/esfuerzo, distribución por tamaño, pesquería de caballa
Keywords:
Population structure
;
Commercial fishing
;
Population structure
;
Catch/effort
;
Size distribution
;
Mackerel fisheries
Repository Name:
AquaDocs
Type:
Journal Contribution
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