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題名 | Growth Parameters of Red-Spot Shrimp, Metapenaeopsis barbata, from the Adjacent Waters off Taichung Harbor=臺中港附近海域產紅斑赤蝦之成長參數 |
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作者 | 曾宗德; 葉顯椏; | 書刊名 | 臺灣水產學會刊 |
卷期 | 22:1 1995.03[民84.03] |
頁次 | 頁53-68 |
分類號 | 387.13 |
關鍵詞 | 體長頻度; 季節性成長; 大小選擇率; MULTIFAN; Length frequency; Seasonal growth; Size selectivity; |
語文 | 英文(English) |
中文摘要 | 利用體長頻度分析法中之MULTIFAN法,探討臺中港附近海域產紅斑赤蝦(Metapenaeopsis barbata)之成長。本報告中考慮兩個不同的成長假設(季節性成長和第一個年齡群之大小選擇率)之四個交插模式,來擬合資料並估計其成長參數。從1992年2月至1993年1工,按月別自巫海域作業之衍拖網漁船船上直接採樣,共收集9組體長組成樣本。 結果顯示如下:(1)性別間,體重與頭胸甲長的關係有著顯著差異;(2)包含季節性變異的成長方程式,更能適當描述本種蝦的成長形式;第一個年齡群的大小選擇率對成長估計值在雌蝦有影響,雄蝦則無,b1值各為2.607與0;(3)雌蝦的成長較雄蝦快,其成長參數如下: 雌: L∞ = 26.7(mm), K=0.86(year-1), C=0.95 and ts=-0.07(year) 雄 : L∞ = 23.9(mm), K=0.724(year-1), C=0.95and ts=-0.09(year) |
英文摘要 | A length-based method, MULTIFAN, was used to estimate the growth parameters of red-spot shrimp, Metapenaeopsis barbata, from the adjacent waters off Taichung harbor. A total of 9 monthly data sets was collected during February 1992 and January 1993 from the catches of a beam trawler. Four models of different growth hypotheses, which took into considerations of seasonal variation and size selectivity for the first age class, were used to estimate the growth parameters. The results show that: (1) there is a significant difference in the relationship of carapace length and body weight between sexes; (2) the growth equation incorporating seasonal variation can better describe the growth of red-spot shrimp; (3) the size selectivity of the first age class has no significant influence for male but has significant influence for female on the estimates of growth parameters; the values of b1 are 2.607 and 0 for female and male, respectively; (4) the growth of carapace length is faster in female than in male. The parameters of growth equation are as follows: Female: L∞ = 26.7(mm), K=0.86(year-1), C=0.95 and ts=-0.07(year) Male : L∞ = 23.9(mm), K=0.724(year-1), C=0.95and ts=-0.09(year) |
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