跳到主要內容區塊

鮪類資源調查與評估

  • 日期:93-06-18
  • 年度:2004
  • 領域:漁業領域
  • 主持人:吳繼倫
  • 研究人員:李政芳

持續進行延繩釣漁獲試驗及鮪類仔稚魚調查,並由CTD、ADCP所記錄各水層海流流向及溫鹽變化解析鮪類的來游行進路線、棲息水深,以了解及蒐集鮪類地理分布與海洋環境資訊,並於魚市場蒐集相關漁獲組成及進行鮪類體長測定,並將所蒐集資訊建立資料庫。(1)、南大西洋長鰭鮪資源,長期以來即為我國所開發利用,我國也是本資源最主要的資源利用國。因此,經由系統性對本資源進行漁業生物學及資源動態研究,所得研究成果可提供國際漁業管理機構,作為制訂TAC等漁業管理措施的參考,並保障我國爭取鮪類漁獲配額之籌碼。(2)、太平洋黑鮪每年四月至七月間,洄游至我國東部海域,成為我國近海鮪延繩釣漁業最重要的漁獲魚種。經由鮪仔稚魚分布調查可瞭解其產卵場;經由表水溫衛星影像解析配合標本船作業資訊與試驗船現場進行的漁獲試驗與海洋觀測將可瞭解黑鮪洄游路徑變動(漁場)與海洋環境關係,可提供漁民作業參考。

研究報告摘要(英)


Tuna resource is abundant in central-western Pacific Ocean. Moreover, the easternwaters off Taiwan are noted as the migrating route and potential spawning grounds forPacific bluefin tuna. To determine the spatial and temporal distributions of tunas larva,especially for bluefin tuna, yellowfin tuna and bigeye tuna; it is an important andessential study in tuna fisheries. After the following studies as: (1) collecting the fisheriesstatistics data, (2) measuring the fork length of tunas, (3) examining the geographicaldistribution of tunas larva and (4) analyzing the spawning biology of main tuna species,then with the knowledge of the oceanography, i.e., drifting of current and characteristicsof TS, the potential spawning grounds and fluctuations of the recruitment for tunas canbe inferred.