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台灣西南海域櫻蝦漁業漁獲性能之研究

  • 出版日期:82-06-01
  • 標題title(英):
    Studies on Fishing Efficiency of the Sakura Shrimp Fishery in the Coastal Waters off Southwestern Taiwan
  • 作者:陳守仁, 蘇偉成
  • 作者auther(英):Chen, S. R. and W. C. Su
  • 卷別:1
  • 期別:1
  • 頁碼:11-18

本報告係依16艘櫻蝦漁業作業船於1990年11月至1991年8月期間之漁況資料,分析 其櫻蝦漁場重心之變動情形及船別之漁獲性能。結果顯示,1990年11月上旬至1991年2 月中旬,漁場重心在枋寮至枋山外海及其附近海域;3月上旬至5月中旬則甚為分散;5 月下旬至7月上旬,重心移至東港外海及其附近海域。另就同一漁場重心作業之 8 艘作 業船之船噸位及主機馬力與漁獲性能指數的分析結果得知,船噸位(T)與漁獲性能指數 (F)之關係可以F = 3.113×10-7 T4.264,r = 0.974表示;主機馬力(H)與漁獲性能指 數之關係式為F = 6.451×10-8 H2.758,r = 0.977,顯示漁獲性能之高低與漁船之噸 位或主機馬力有顯著的關係,且隨著噸數或馬力之增加,其指數之增加率有降低的趨勢 。又船噸位在27噸以下或主機在300匹馬力以下,其漁獲性能指數甚低。

摘要abstract(英)


A study was conducted in the transition patterns of fishing ground and the index of fishing efficiency of the commercial Sakura shrimp boats. Sixteen sakura shrimp boats operating in the waters off southwestern Taiwan from November 1990 to August 1991 were sampled. The center gravity of the fishing ground located on the coastal waters off Fanliao to Fanshan from early November 1990 to middle February 1991; off Tungkang from late May to early July; and off Tungkang to Fanshan from early March to middle May 1991. The relationships between the index of fishing efficiency (F), the gross tonnage (T), and the main engine power (H) of eight sakura shrimp boats were formulated as follows: F = 3.113×10-7 T4.264, r = 0.974 and F = 6.451×10-8 H2.758, r = 0.977.
The index of fishing efficiency was closely correlated with tonnage or engine power. The increasing rate of indices was damped in proportion to tonnage or engine power. Moreover, the index of fishing efficiency was very low when the tonnage of Sakura shrimp boats was below 27 tons or when the main engine power was below 300 HP.