 ผลงานตีพิมพ์ในวารสารวิชาการPreliminary Age and Growth of Bigeye Tuna, Thunnus obesus (Lowe, 1839) from the Northeastern Indian Oceanผู้แต่ง: Praulai Nootmorn, Sansanee Srichanngarm, Sampan Panjarat,  Dr.Shettapong Meksumpun, Professor , Dr.Thon Thamrongnawasawat, Assistant Professor , Tuantong Jutagate, วารสาร: 
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Systematic Data Collection on and Status of Thai Industrial Tuna Purse Seine Operations in the Indian Ocean) ผู้เขียน:Praulai Nootmorn, ดร.ศรัณย์ เพ็ชร์พิรุณ, รองศาสตราจารย์ , Kanokwan Maeroh สื่อสิ่งพิมพ์:pdf AbstractSix Thai industrial tuna purse sein fishing vessels operated in the Indian Ocean from 2005 to 2006. Fishery information and logistical data were gathered from log books, port sampling and interviews to create a systematic diagram of data collection and processing. The results will be used to support and implement responsible fishery operations under a resolution of the Indian Ocean Tuna Commission. The total catch reported was 12,216 metric tonne (tonne) in 2005 and 23,161 tonne in 2006, with the main fishing ground being off Somalia and the main fishing practice was with associated schools. The highest values for catch data, catch per unit effort (CPUE) and the number of sets were obtained during February to April and September to November in 2006. The monthly catch, CPUE and number of sets ranged from 383-4539 tonne, 15 to 61 tonne/set and 15 to 144 sets, respectively. Skipjack tuna was the main target fish, followed by bigeye tuna, yellowfin tuna and bonito. Skipjack tuna made up a high proportion of the catch during March to September, while bigeye and yellowfin tuna made up a high proportion from September to December 2005 and from January to February in 2006. The size range of skipjack, bigeye and yellowfin tuna varied from 39-75, 45-133 and 33-152 cm, respectively, whilst the length of 50% of capture fish was 60, 66 and 81 cm, respectively. Most of the bigeye and yellowfin tuna were juvenile. The status of bigeye tuna from tuna purse seine fishing was stable in terms of catch and CPUE. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Thai Tuna Longline Fishing in the Indian Ocean from 2000 to 2006) ผู้เขียน:Praulai Nootmorn, ดร.ศรัณย์ เพ็ชร์พิรุณ, รองศาสตราจารย์, Kanokwan Maeroh สื่อสิ่งพิมพ์:pdf AbstractThai tuna longliners were operating in the Indian Ocean from 2000 to 2006; data from their logbooks displayed important information of their fishing operation. Total annual catches during the period were: 384.90, 390.93, 93.57, 252.48, 272.41, 280.12 and 414.44 tonnes, with a value of 2, 1.84, 0.46, 1.16, 1.58, 0.98 and 2.42 million USD, respectively. Fishing grounds were in four zones namely: the Bay of Bengal, the west coast of Indonesia, Somalia and the Seychelles, and the southern part of the Indian Ocean. The highest catch rate was found in Somalia and the Seychelles (1.3 fish/100 hooks), followed by the west coast of Indonesia (1.2 fish/100 hooks) and the southern part of the Indian Ocean (1.0 fish/ 100 hooks). The lowest catch rate was reported in the Bay of Bengal (0.7 fish/100 hooks), which compared to other fishing grounds. The major catch species were bigeye tuna (Thunnus obesus), yellowfin tuna (T. albacares), albacore tuna (T. alalunga), and swordfish and other large pelagic species comprising 36.64, 35.77, 20.28 and 7.31% of the total seven-year catch, respectively. Bigeye tuna were caught in all fishing grounds, with the highest catch in the southern part of the Indian Ocean. Yellowfin tuna occurred in all fishing grounds. However, the highest abundance was found in Somalia and the Seychelles, while the lowest numbers were found in the Bay of Bengal. Albacore tuna were dominant in the southern part of the Indian Ocean. Other large pelagic species recorded included: swordfish (Xiphias gladius), sharks, blue marlin (Makaira mazara), black marlin (M. indica), striped marlin (Tetrapturus audax) and sailfish (Istiophorus spp). Thai tuna longliners fished north of equator during 2000 to 2002 and moved south of the equator during 2003 to 2006. Analysis of catch data by the PRIMER program showed changes in target species from yellowfin tuna, bigeye tuna, swordfish and other species during 2000 to 2002 to albacore tuna, bigeye tuna, yellowfin tuna, swordfish and other species during 2003 to 2006. |
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Researcherดร. เชษฐพงษ์ เมฆสัมพันธ์, ศาสตราจารย์ที่ทำงาน:ภาควิชาวิทยาศาสตร์ทางทะเล คณะประมง สาขาที่สนใจ:ด้านการประเมินสถานภาพของสิ่งแวดล้อม, ด้านการเฝ้าระวังการเกิดปรากฏการณ์น้ำเปลี่ยนสี, ด้านความหลากหลายของแพลงก์ตอนพืชทะเล Resume |