The by-catch of Sciaenidae fishes in experimental fishing with an otter trawlnet used in the seabob shrimp, Xiphopenaeus kroyeri, fishery in Paraná State, Brazil

Authors

  • Cristina Bernardo Universidade Federal do Paraná
  • Henry Louis Spach Universidade Federal do Paraná
  • Roberto Schwarz Junior
  • Sergio Biato Stoiev Universidade Federal do Paraná
  • André Pereira Cattani Universidade Federal do Paraná

DOI:

https://doi.org/10.32360/acmar.v44i2.168

Keywords:

Sciaenidae, by-catch, otter trawlnet, Paraná State.

Abstract

Experimental bottom trawls were made to gauge the by-catch of Sciaenidae fishes in the seabob shrimp fisheriy area of Paraná’s inshore, Brazil. Otter trawlnets were used in monthly hauls during the period from August, 2004 to July, 2005 at the 6, 9, 12 and 15 meters in five coastline perpendicular radials, between Barra da Ararapira and Matinhos. A total of 41,674 fishes, representing 21 taxa of Sciaenidae family, were caught. The dominant species were Stellifer rastrifer (37.8%), Ctenosciaena gracilicirrhus (11.8%), Paralonchurus brasiliensis (11.1%), Larimus breviceps (10.0%), Stellifer brasiliensis (9.5%), Cynoscion jamaicensis (5.1%), Isopisthus parvipinnis (5.1%), Menticirrhus americanus (3.3%), Nebris microps (1.9%) and Stellifer stellifer (1.6%), accounting for 97.3% of the Sciaenidae overall catch. The highest abundance had been at 6 meters (39%), followed by the 9-meter (28%), 12-meter (18%) and 15-meter (15%) depth ranges. Most of the fish were either immature or of indeterminate sex. Sciaenidae family contributed with more than 50% of the total ichthyofauna biomass, accounting for, at least 19.8 kg (34.2%) in November, 2004 and, at most, 99,3 kg (74.0%) in March, 2005.

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Author Biographies

Cristina Bernardo, Universidade Federal do Paraná

Oceanógrafa, Centro de Estudos do Mar.

Henry Louis Spach, Universidade Federal do Paraná

Professor Doutor, Centro de Estudos do Mar.

Roberto Schwarz Junior

Biólogo, Doutor em Zoologia (UFPR).

Sergio Biato Stoiev, Universidade Federal do Paraná

Oceanógrafo, Mestrando em Sistemas Costeiros e Oceânicos.

André Pereira Cattani, Universidade Federal do Paraná

Pesquisador, Centro de Estudos do Mar.

Published

2011-09-01

How to Cite

Bernardo, C., Spach, H. L., Junior, R. S., Stoiev, S. B., & Cattani, A. P. (2011). The by-catch of Sciaenidae fishes in experimental fishing with an otter trawlnet used in the seabob shrimp, Xiphopenaeus kroyeri, fishery in Paraná State, Brazil. Arquivos De Ciências Do Mar, 44(2). https://doi.org/10.32360/acmar.v44i2.168

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