Small-scale Squid Large Cast-Net Fisheries during Waxing and Waning Moon Phases in the Klongwan Coastal Area, Prachuap Khiri Khan Province, Thailand
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Abstract
A squid catch study was conducted through onboard surveys using large cast-net fishing at different operations between waxing and waning moon phases in the Klongean coastal area, Prachuap Khiri Khan province in September 2014, January, March and May 2015. The catch and CPUE, including the income obtained, were analyzed. Results showed that the number of caught species from this fishery during the 12th-15th days of a waxing moon was 27 species (4 species of squids, 15 species of marketable value and 8 species of discards) and during the 12th-14th day of a waning moon was 28 species (3 species of squids,17 species of marketable value and 8 species of discards). The average catch rate of target species (Lologinid squids, Loligo spp.) and non-target species, catch composition, CPUE and income from this fishery between waxing and waning moon phases were not significantly different (p>0.05). This study indicated that lunar cycles did not have an impact on squid catch from fishing by large cast-net. Fishing during waxing and waning moon phases produced a rather low daily income, at THB 591.80 and 245.78, respectively. The main daily operating costs were for light generation, at 57.1-71.7% and 53.2-65.5% of total costs, respectively.
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References
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