ความดกไข่ อัตราการฟัก ความสัมพันธ์ระหว่างความกว้างกระดองกับน้ำหนักตัวของปูม้าไข่นอกกระดอง และแนวทางการบริหารจัดการธนาคารปูม้า: กรณีศึกษาธนาคารปู กลุ่มประมงพื้นบ้านทรัพย์อนันต์ อำเภอสิงหนคร จังหวัดสงขลา

Abstract

Study on fecundity, hatching rate, relationship between carapace width and body weight of gravid female blue swimming crab and managing guidelines of crab bank Sup-Anan Local Fisheries Group, Singhanakhon District, Songkhla Province conducted in two parts; Part 1 study on fecundity, hatching rate and relationship between carapace width and body weight of gravid female blue swimming crab; outer carapace width and carapace length were measured; while body weight of gravid female blue swimming crab with different colors of eggs which were collected from the crab bank Sup-Anan Local Fisheries Group were weighed. Data of crab sample (300 pcs.) were collected and recorded throughout 12 months and analyzed by the SPSS 23 program. From the study results, the outer carapace width, the carapace length, body weight and egg weight were in the range of 7.02-26.80 cm, 5.13-8.20 cm, 104.60-458.80 grams and 14.64-109.00 grams, respectively. As the fecundity was in the range of 218,880-2,906,833 eggs and the hatching rate was in the range of 10.53-97.88 %. The analysis of relationship between outer carapace width and body weight showed that there was significantly correlation, the equation was BW = 7.335*OCW1.344 (R2 = 0.463). Part 2 study on operating guidelines of crab bank Sup-Anan Local Fisheries Group; data was collected through in-depth interviews with stakeholders i.e. crab bank chairman, crab bank members, crab sellers, crab buyers and relevant government and private agencies and using Participatory Rural Appraisal (PRA) as a tool for qualitative research. Data was analyzed by using typological analysis, SWOT analysis of environment and potential and TOWS analysis of strategic objectives. The study showed that crab bank Sup-Anan Local Fisheries Group was established in 2010 by grouping of local fishermen. The practice was conducted by taking gravid female crabs to incubate in tanks for hatching to be first larval crabs and releasing them back to the sea. SWOT and TOWS analysis were used to propose guidelines for the development of crab banks as following 1) Development of learning centers and eco-tourism sites 2) Enhancing knowledge of crab bank members about blue swimming crabs and increasing communication and public relations channels 3) Encouraging new generations in the community to take part in the crab bank activities and 4) Establishing cooperation with various agencies to support the budget for the crab bank 's operations.