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研究報告

更新日期: 2015-02-09
點閱數: 1,871

市售鯊魚魚翅DNA檢測之研究

年度 2013
計劃名稱 市售鯊魚魚翅DNA檢測之研究
中文摘要 鯊魚的保育與有效的鯊魚漁業管理已經是全球性的重要議題。許多軟骨魚類已經被"國際自然保護聯盟"(IUCN)列入保育紅皮書,或是被"瀕危動植物世界貿易組織"(CITES)列為禁止捕撈與販賣的名單中。已有許多研究以DNA生命條碼的技術鑑定鯊魚產品的種類,尤其當該產品的魚體外觀特徵已被移除時。既有的研究成果累積許多有用的遺傳資訊,因此我們利用既有的資訊,進行鑑定國內港口所拍賣的鯊魚魚鰭種類,包括宜蘭南方澳、屏東東港、台東新港等新鮮魚翅,已經達到181個樣本,檢出20種,並且從零售商店購買魚翅產品共檢出195個樣本,23種軟骨魚類,扣除重複物種後,本研究在今年度共鑑種出的軟骨魚類分屬9科13屬32種。屬於無危(Least Concern)等級有3種:澳大利亞半沙條鯊、尖頭曲齒鯊、窄頭雙髻鯊。屬於近危(Near Threatened)的等級有12種:鋸峰齒鮫、平滑白眼鮫、麥氏真鯊、沙拉白眼鮫、台灣刺鯊、鷹魴(日本福鱝)、鼬鮫、印度蝠鱝、尖鰭刺鯊、直翅真鯊、黑邊鰭白眼鮫、薔薇白眼鮫。屬於易危(Vulnerable)的等級有12種:淺海狐鮫、深海狐鮫、灰色白眼鮫、灰鯖鮫、丫髻鮫、汙斑白眼鮫、鼠鯊、高鰭白眼鮫、長臂灰鯖鮫、小眼ㄚ髻鮫、兇猛砂錐齒鯊、澳洲尖犁頭鰩。屬於瀕危(Endangered)的等級有2種:紅肉ㄚ髻鮫、八鰭丫髻鮫。屬於極危(Critically Endangered)的等級有1種:鈍鋸鱝。另外,Carcharhinus coatesi並未列於IUCN名單之上;而褐背蝠鱝,因資料不足(data deficient),IUCN無法評估其族群狀態。
英文摘要 Shark conservation and effective fisheries management is an important and worldwide issue. Many chondrichthyan species are listed in the World Conservation Union (IUCN) Red List and Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendices II. Ample studies had used DNA barcode technique to identify the shark species from the parts of the shark body e.g., shark fin when the morphological feature was removed. Previous studies have accumulated sufficient genetic information of chondrichthyan species in the database, which enables us to apply DNA barcode as a method to identify shark species from the shark fins landed in the harbors of Taiwan as well as from the shark fins products in the retail shops. We have identified 16 species from 173 samples collected in 3 harbors and 28 species from 170 dry fins purchased from retail stories. Totally, 33 species of shark and ray were identified, which belong to 17 genera, 12 families. According the IUCN list, 3 species are in the status of Least Concern: Rhizoprionodon acutus, Rhizoprionodon taylori, and Hemigaleus australiensis, 15 species in the status of Near Threatened: Carcharhinus falciformis, Carcharhinus brevipinna, Carcharhinus melanopterus, Carcharhinus albimarginatus, Carcharhinus limbatus, Carcharhinus amblyrhynchos, Carcharhinus sorrah, Carcharhinus dussumieri, Carcharhinus galapagensis, Carcharhinus macloti, Galeocerdo cuvier, Prionace glauca, Deania quadrispinosa, Chiloscyllium punctatum, Mobula japanica, 11 species in the status of Vulnerable: Alopias pelagicus, Alopias superciliosus, Carcharhinus longimanus, Hemipristis elongata, Stegostoma fasciatum, Sphyrna zygaena, Isurus oxyrinchus, Isurus paucus, Lamna nasus, Squalus acanthias, Rhynchobatus australiae, 2 species in the status of Endangered: Sphyrna lewini, Sphyrna mokarran, 1 species in the status of Critically Endangered: Anoxypristis cuspidate.
計畫編號 102農科-11.2.1-漁-F3(3)
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