LENGTH-WEIGHT RELATIONSHIP OF THE SIX MOST ABUNDANT FISH SPECIES IN PRAWN FISHERY SEMI-FIXED TRAP BYCATCHES IN THE LOWER AMAZON REGION (PARÁ, BRAZIL)

  • Luan Campos IMBIRIBA Universidade Federal do Oeste do Pará - UFOPA, Instituto de Ciências e Tecnologia das Águas, Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores. http://orcid.org/0000-0002-8929-3051
  • Diego Maia ZACARDI Universidade Federal do Oeste do Pará - UFOPA, Instituto de Ciências e Tecnologia das Águas, Laboratório de Ecologia do Ictioplâncton e Pesca em Águas Interiores. http://orcid.org/0000-0002-2652-9477
  • Severino Adriano de Oliveira LIMA Universidade Federal de Rondônia - UNIR, Departamento de Engenharia de Pesca, Programa de Pós-Graduação em Ciências Ambientais. http://orcid.org/0000-0001-6495-5453
  • Raniere Garcez Costa SOUSA Universidade Federal de Rondônia - UNIR, Departamento de Engenharia de Pesca, Programa de Pós-Graduação em Ciências Ambientais. http://orcid.org/0000-0002-5620-389X

Abstract

In this study, the length-weight relationships (LWR) were estimated for six fish species captured during prawn fishing in the Lower Amazon region (Pará, Brazil). Prawn fishing boosts the socioeconomic development of riverine communities and is a relevant activity as a source of income and subsistence in this region. In addition, we registered new LWRs for the species Ossancora punctata and Hypoptopoma elongatum. The samplings were performed in prawn catches monthly from February 2018 to January 2019, using a “matapi”, which consists of a semi‑fixed trap that has a galvanized iron structure (2.5 m height by 2.0 m in length) and nylon mesh (1.40 x 1.60 mm mesh), and has two tapered openings to facilitate the entry and trapping of the prawn. The results show that 75% of the fish caught as prawn bycatches had not yet reached sexual maturity. Thus, it is clear that fisheries need to develop fishing gear that allow small fish to escape from the traps during the prawn fishery.

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Published
2021-06-30
How to Cite
IMBIRIBA, Luan Campos et al. LENGTH-WEIGHT RELATIONSHIP OF THE SIX MOST ABUNDANT FISH SPECIES IN PRAWN FISHERY SEMI-FIXED TRAP BYCATCHES IN THE LOWER AMAZON REGION (PARÁ, BRAZIL). Boletim do Instituto de Pesca, [S.l.], v. 47, june 2021. ISSN 1678-2305. Available at: <https://www.pesca.sp.gov.br/boletim/index.php/bip/article/view/1608>. Date accessed: 02 dec. 2021. doi: https://doi.org/10.20950/10.20950/1678-2305/bip.2021.47.e628.
Section
Short Communication