原名「台灣學術線上」
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題名:Examination on Recent Increase in Juvenile Catch of South Atlantic Albacore Thunnus Alalunga: Observations and Implications    
近年來南大西洋長鰭鮪Thunnus Alalunga資源量增加可能性之探討
著者:Shui-Kai Chang(張水鍇) ;Shyh-Bin Wang(王世斌) ;Shean-Ya Yeh(葉顯椏)
出版地區:台灣
出版城市:基隆市
學科:農林漁牧礦科學
關鍵字:長鰭鮪 ; 南大西洋 ; 豐度 ; Albacore ; South Atlantic Ocean ; Abundance
刊名:Journal of the Fisheries Society of Taiwan
卷期:26卷4期(1999.12)
頁碼:191-201
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

利用外部形態之變異檢視東海及台灣海峽產斑節蝦之系群結構。採集1個來自東海北部、2個來自東海南部、3個來自台灣西部沿岸及3個來自台灣海峽中部等共9個樣本加以分析。每一樣本量測所得之11個形質,經Burnaby法標準化後,依性別分別以直交變值分析法(Canonical variate analysis)及集群分析法加以分析。結果顯示,無論雌雄,全部之採樣區域皆可分為3個集群:第一群為東海北部群、第二群為台灣沿岸群及其它採樣區組成之第三群。因蝦類成長至一定之大小或階段會從沿岸洄游至外海,故第二群(小個體)被視為第三群(較大個體)之未加入之子代;兩群之形質變異,只是不同生活階段之故。因此,東海及台灣海峽產斑節蝦應可分為二個系群:一為東海北部群;另一群則分佈於台灣海峽與東海南部。本研究利用外部形態已成功之判別斑節蝦之系群結構,但更進一步之驗証如遺傳學証據是必須的。
Morphometric variation was used to examine the stock structure of the kuruma shrimpin the East China Sea and the Taiwan Strait.Nine samples were collected,one from thenorth of the East China Sea,two from the south of the East China Sea,three from theinshore areas of Taiwan,and three from the middle of the Taiwan Strait.The 11 measurements made for each individual were size-standardized by Burnaby's method,and resulting measurements were used in the canonical variate analysis and cluster analysis bysexes.The results showed that all sampling areas were clustered into three distinctgroups for each sex,the first group included the north of the East China Sea,the secondgroup included inshore areas of Taiwan,the third group included the other areas.Shrimpsoften migrate from inshore to offshore as they grow to specific size,so the second group(the smaller individuals)was considered as the unrecruiting offspring of the third group(the larger ones).The morphometric variation between the second and the third groupscould be attributed to different life stage.We,therefore,suggest that the kuruma shrimpin the East China Sea and the Taiwan Strait can be discriminated into two stocks.One isin the north of the East China Sea,and the other is in the south of the East China Sea andthe Taiwan Strait.The present study demonstrates that the utility of morphometric characters for defining stocks of kuruma shrimp is available,but further verification of the stockstructure(e.g.,genetic evidence)is essential.


    

本卷期目次
Journal of the Fisheries Society of Taiwan 26卷4期 (1999.12)
Age and Growth of Two Co-Occurred Anchovy Species(Encrasicholina Puntifer and E. Heteroloba)during Autumn Larval Anchovy Fishing Season in I-Lan Bay,NE Taiwan/ Tai-Sheng ChiuChung-Ling ChenShuh-Sen Young
Examination on Recent Increase in Juvenile Catch of South Atlantic Albacore Thunnus Alalunga: Observations and Implications/ Shui-Kai ChangShyh-Bin WangShean-Ya Yeh
Analysis of the Morphometric Characters of the Kuruma Shrimp(Penaeus Japonicus)in the East China Sea and the Taiwan Strait/ Tzong-Der TzengShean-Ya Yeh
An Experimental Study on the Deformation of the Net Cages/ Kei-Chien YuSyue-Sinn LeuYau-Shou Chow
Effects of Substituting Fermented Soybean Meal for Fish Meal in Diets on Growth and Body Composition of Soft-Shelled Turtle,Trionyx Sinensis/ Chen-Huei HuangWay-Yee Lin
Captive Broodstock of Penaeus Vannamei Cultured from Postlarva in Closed Recirculating System and Its Reproduction Performance/ Koa-Jen JongJenn-Kan Lu
The Impacts of Women's Knowledge about the Nutritional Value of Seafood Products on Seafood Purchase Intention in Taiwan/ Fu-Sung ChiangShau-Yen Huang
 
   
 
   

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