Bycatch from Bottom Crab Gillnet Fishery in Pattani Province

Authors

  • Somsak Buatip Faculty of Science and Technology, Prince of Songkla University, Pattani Campus. 181 Chroenpradit Road. T.Rusamilae, Mueng, Pattani Province 94000
  • Kua Rittiboon
  • Supaporn Sangkaew
  • Pimonrat Thongroy
  • Sitthisak Jantarat
  • Pun Yeesin
  • Chavapot Chavavongsa
  • Dehma Kanirae

Abstract

The study on bycatch from bottom crab gillnet fishery in Pattani province, was conducted during December 2018 to November 2019 with four local landing sampling. This study found that on average 34.87% of total catches is blue swimming crab (Portunus pelagicus). Whereas bycatch is highly diverse of 252 species which are dominated by 3 group species of fish (75 species), shellfish (67 species) and crab (58 species). 98 species (38.89%) of bycatch are availability. The average discard ratio and discard rate for total catches are 1.85 and 0.65, respectively.  There are 3.96 of diversity index, 0.72 of evenness Index and 72.41 of similarity Index.    The frequency of species occurrence were found 69 species are rare, 62 species are uncommon, 51 species are moderately common, 29 species are common and 41 species are abundant. Keywords :  small-scale fisher ; Pattani ; Southern Gulf of Thailand ; Portunus pelagicus ; non-target species

Author Biography

Somsak Buatip, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus. 181 Chroenpradit Road. T.Rusamilae, Mueng, Pattani Province 94000

  

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Published

2021-01-13