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標題: | 東印度洋近澳洲陸棚的底魚群社及資源利用度 Shelf Fish Communities and Resource Availability in the Eastern Indian Ocean near Australia |
作者: | Mei—Huey Yang 楊美慧 |
出版年 : | 1989 |
學位: | 碩士 |
摘要: | 本文系利用海功號1981年對印度洋鄰近澳洲邊的陸棚探海所獲得的資料,進行底棲魚類的基本群社分析及漁業之利用分析。 以岐異度分析法對該區所做的生態分析顯示,其生物種別之岐異度相當高,Shannon指數自0.90至2.85不等;Simpson指數則介於0.52與0.92之間,並且在低於南緯15度之第一緯區與高於南緯18度之第二緯區間,存在頗大差異.以重發生群分析法,得到三個大群:1) 波金線(Nemipterus tolu),皮氏金線(N. peronii),金線(N. virgatus),金線(N. tambuloides),花斑蛇鯔(Saurida undosquamis), 花桿狗母(Trachinocephalus myops),海撚(Arius thalassinus),黑鯧( Formio niger)及金鱗魚(Mypripristes murajan); 2)龍尖(Lethrinus chrysostomus),六齒金線(Nemipterus hexadon),深水金線(N bathybius)及黃鱺?(Grathanodon speciosus);和3)狗母(Saurida filomentosa),石斑(Ephinephelus spp.), 長鯛(Pristipomoides spp.)及石首魚(Johnieops volgeri). 以比較群社內種之體長之頻度分佈與我國在此區之拖網魚獲之體長頻度分佈,得到三個代表種之利用率.它們分別是:皮氏金線(Nemipterus peronii),0.385; 花斑蛇鯔(Saurida undosquamis),0.458;及馬拉巴笛鯛(Lutjanus malabaricus), 0.383. Shelf fish communities in the eastern Indian Ocean near Australia were surveyed by using R/V Hia-kung on 1981. Based on that data both ecological and catch curve analysis were carried out in this study. Basic ecological data screening indicated by diversity analysis exhibited that species diversity kept high among the stands and the environmental condition of their habitates were in common very different between two presummed areas as discriminated by latitudinal shift. By using recurrent group analysis, three major fish groups of coocurrence species could be defined. Those groups were: 1) Nemipterus tolu, N. peronii, N. virgatus, N. tambuloides, Saurida undosguamis, Trachinocephalus myops, Arius thalassinus,Formio niger, and Mypripristes murajan, 2) Lethrinus chrysostomus, Nemipterus hexadon, N. bathybius, and Grathanodon speciosus, and 3) Saurida filomentosa , Ephinephelus spp., Pristipomoides spp., and Johnieops voleri. Exploitation rate of fishes within the shelf were estimated by using a comparison of size frequency data between from the community and from catch composition of Taiwanese trawl fisher The estimated exploitation rate for three representative species of Nemipterus peronii, Saurida undosquamis, and Lutjanus malabaricus were 0.385 0.458, and 0.383 respectively. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/75729 |
全文授權: | 未授權 |
顯示於系所單位: | 漁業科學研究所 |
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