Recent Findings on Spawning Patterns and Recommendations for the Fishery Management of the Southern Red Snapper—Lutjanus purpureus (Poey, 1866)—On the Amazon Continental Shelf of Brazil-Reference-Cited by-同舟云学术

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

Published:2024-04-15 Issue:4 Volume:9 Page:136
ISSN:2410-3888
Container-title:Fishes
language:en
Short-container-title:Fishes

Author:

da Costa Pinheiro Larissa¹^ORCID,Ferreira Beatrice Padovani²,Santos Paulo Emílio¹,Peixoto Ualerson³⁴^ORCID,Bentes Bianca¹^ORCID

Affiliation:

1. 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

2. Department of Oceanography, Federal University of Pernambuco, Cidade Universitária, Recife 50740-540, Brazil

3. Okeanos—Institute of Marine Sciences, University of the Azores, Rua Professor Doutor Frederico Machado 4, 9901-862 Horta, Portugal

4. IMAR—Institute of Marine Research, University of the Azores, Rua Professor Doutor Frederico Machado 4, 9901-862 Horta, Portugal

Abstract

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.

Funder

FIP (Fisheries Improvement Progress), CNPq

Publisher

MDPI AG

Link

https://www.mdpi.com/2410-3888/9/4/136/pdf

Reference87 articles.

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