頁籤選單縮合
題 名 | The Effects of the Attack Angle for the Turtle Excluder Device (TED) on the Separation Efficiency of Taiwan Shrimp Drag Net=臺灣近海蝦拖網海龜逃脫裝置(TED)之攻角對魚蝦分離效果之影響 |
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作 者 | 林佳宏; 陳俊德; 周耀烋; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 24:4 1997.12[民86.12] |
頁 次 | 頁261-271 |
分類號 | 439.3 |
關鍵詞 | TED攻角; 魚蝦分離效果; 海龜逃脫裝置; 臺灣近海蝦拖網; Attack angle; Separation efficiency; Turtle excluder device; TED; Taiwan offshore shrimp drag net; |
語 文 | 英文(English) |
中文摘要 | 臺灣近海蝦拖網正面臨美國的壓力, 而將被迫加裝海龜逃脫裝置( Turtle excluder device, TED )本研究為究明此項裝置對排除海龜混獲的效果, 及對蝦拖網魚蝦 漁獲的分離效果和漁獲減少比率,乃利用〞海研 2 號〞研究船於臺灣北部漁場進行 TED 之 魚蝦分離試驗。 從 1995 年 5 月到 8 月共實施 19 網次,實驗結果摘要如下: (1) 本試 驗之主要漁獲魚種達 16 種,但並未有海龜的混獲。 (2) 比較 TED 攻角 30 °、45 °、 60 °、90 °的魚蝦分離效率,以 45 °最佳,90 °最差。 (3) 選用 TED 攻角 45 °時 ,蝦類漁獲尾數約減少 8 % -8.6 %、魚類漁獲尾數減少 31 % -89.5 %。 |
英文摘要 | The Turtle excluder device (TED) must be used in the offshore shrimp drag net of Taiwan. To study the effects of the TED on separation efficiency for fish-shrimp catches, a fish-shrimp separation experiment was carried out by the ship "Ocean Researcher No. 2" in the northern fishing grounds of Taiwan during May and August of 1995. In total, 19 hauls of experiments were conducted. The results are summarized as follows: (1) 16 species of catch were caught in this experiment but a by-catch of turtle was not found. (2) Comparing the separation efficiency of the TED with attack angles of 30 °, 45 °, 60 ° and 90 °, it was shown that the TED worked best when operated at a 45 ° attack angle. (3) After adjusting the TED to a 45 ° attack angle, the reduction ratio for shrimp was 8%-8.6% and fish 31%-89.5%. |
本系統中英文摘要資訊取自各篇刊載內容。