Recent Findings on Spawning Patterns and Recommendations for the Fishery Management of the Southern Red Snapper—<i>Lutjanus purpureus</i> (Poey, 1866)—On the Amazon Continental Shelf of Brazil

Larissa da Costa Pinheiro; Beatrice Padovani Ferreira; Paulo Emílio Santos; Ualerson Peixoto; Bianca Bentes

doi:10.3390/fishes9040136

Fishes (Apr 2024)

Recent Findings on Spawning Patterns and Recommendations for the Fishery Management of the Southern Red Snapper—<i>Lutjanus purpureus</i> (Poey, 1866)—On the Amazon Continental Shelf of Brazil

Larissa da Costa Pinheiro,
Beatrice Padovani Ferreira,
Paulo Emílio Santos,
Ualerson Peixoto,
Bianca Bentes

Affiliations

Larissa da Costa Pinheiro: Pós Graduate Program in Aquatic Ecology and Fisheries, Amazonian Nucleus of Aquatic Ecology and Fisheries, Federal University of Pará (PPGEAP—NEAP-UFPA), Rua do INPE, S/N—Terra Firme, Belém 66077-530, Brazil
Beatrice Padovani Ferreira: Department of Oceanography, Federal University of Pernambuco, Cidade Universitária, Recife 50740-540, Brazil
Paulo Emílio Santos: Pós Graduate Program in Aquatic Ecology and Fisheries, Amazonian Nucleus of Aquatic Ecology and Fisheries, Federal University of Pará (PPGEAP—NEAP-UFPA), Rua do INPE, S/N—Terra Firme, Belém 66077-530, Brazil
Ualerson Peixoto: Okeanos—Institute of Marine Sciences, University of the Azores, Rua Professor Doutor Frederico Machado 4, 9901-862 Horta, Portugal
Bianca Bentes: Pós Graduate Program in Aquatic Ecology and Fisheries, Amazonian Nucleus of Aquatic Ecology and Fisheries, Federal University of Pará (PPGEAP—NEAP-UFPA), Rua do INPE, S/N—Terra Firme, Belém 66077-530, Brazil

DOI: https://doi.org/10.3390/fishes9040136
Journal volume & issue: Vol. 9, no. 4
p. 136

Abstract

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The southern red snapper, Lutjanus purpureus, is one of the primary fishery resources of the Amazon continental shelf. Due to the demand for specimens of less than 900 g in weight, increased fishing effort focusing on this size class has led to a drastic decrease in catches. The present study was based on the analysis of cellular structures in the female gonads (formation of oocytes and other reproductive tissues) to identify reproductive processes and evaluate the effectiveness of current fishery management practices. The presence of postovulatory follicles (POFs) peaked in April, which was interpreted as a period of intense spawning. In addition to POFs, hydrated oocytes peaked in July, indicating either reproductive continuity or a second peak, based on the presence of atretic oocytes and atresia. Given that the local snapper fishery preferentially targets very young individuals, an extension of the closed season from March to July would be recommendable to guarantee the reproductive potential of the spawning stock.

Published in Fishes

ISSN: 2410-3888 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Biology (General): Genetics
Website: http://www.mdpi.com/journal/fishes

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