Investigation of Spiral Babylon (Babylonia spirata, Linnaeus, 1758) fishing effort and catch on the northern waters of the Oman Sea (Sistan and Baluchestan province)

Document Type : scientific research article

Authors

1 Offshore fisheries research center(chabahar), Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization.

2 Faculty member in Iranian fishery science research institute

3 Chabahar Maritime University

10.22069/japu.2022.20809.1728

Abstract

In the present study, the exploitation status of Babylon snail was evaluated by sampling four fishing areas of this species in the north of the Oman Sea (Iran) including Pasabandar, Bris, Pozm and Konarak from September 2021 to September 2022. In order to estimate the amount of catch per month, sampling was done by collecting statistics and information from the landing site, by counting at the place and sampling at the time. The amount of Babylon snail fishing effort and catch indicates that Bris and Pozm stations had the highest and lowest catch rate as well as fishing effort (day-boat) at the time of snail harvest (P < 0.05). The average catch per fishing effort post Monson and per Monson time were 183 ± 79 kg and 117 ± 25 kg, respectively (P < 0.05). In general, the fishing status of Babylon snail species has a fishing effort of 4569 days - boat fishing per year and the average catch per fishing effort (CPUE) of each boat is about 150 kg and the average catch per cage is about 0.59 kg. According to the calculations, the average of virgin biomass was obtained 971 (918-1047) tons, the average of maximum sustainable yield (MSY) less than 250 tons and maximum constant yield (MCY) less than 180 tons and total allowable catch (TAC) less from 220 tons, respectively. The amount of Babylon snails catches on the northern waters of the Oman Sea (Sistan and Baluchestan province) is more than 670 tons per year, that its seems to be higher than the optimal catch.

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Journal of Utilization and Cultivation of Aquatics
Volume 13, Issue 1
April 2024
Pages 61-75

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