行政院農業委員會-水產試驗所全球資訊網

  • Font Size:S
  • Font Size:M
  • Font Size:L
  • 藍
  • 綠
  • 橙
  • 紫
  • FaceBook
  • 農業創新育成中心
  • YouTube
  • Flickr
  • 觀賞魚網站
  • 水產陳列館
  • 水產食譜

水產研究(1993年創刊)

  • 書籤: facebook  plurk  funp  twitter 
  • 點閱: 2176
  • 日期: 2019-05-24
水產研究(1993年創刊)-臺灣西南海域水文環境變動對大棘大眼鯛漁況之影響
主題: 臺灣西南海域水文環境變動對大棘大眼鯛漁況之影響
摘要(中):
本研究以西南海域底拖漁獲中重要的經濟性魚種‒大眼鯛為對象,探討1997 ~ 2013年共17年間,棲地水文環境變動對大眼鯛漁況之影響。根據採樣結果,臺灣西南海域漁場以大棘大眼鯛 (Priacanthus macracanthus) 為最主要的漁獲種類之一,漁場主要分布於深度50 ~ 300 m之間,以深度100 ~ 200 m處的單位努力漁獲量 (catch per unit effort, CPUE) 較高。由長期資料可知,大棘大眼鯛漁期以4 ~ 5月及10 ~ 12月為主,但2010年起之3年間,漁期轉變為10 ~ 12月;由漁場分布可發現,大棘大眼鯛較為偏向更深、更離岸的區域。利用典型相關分析 (CCA) 納入生物及環境因子探討結果,大棘大眼鯛CPUE與南方震盪指數 (SOI) 及下雜魚資源呈現正相關,而與太平洋十年振盪指數 (PDO) 及水下100 m 鹽度呈現負相關,顯示該水產資源漁況有受反聖嬰現象影響而上升之趨勢。本研究結果有利於未來在水文環境因子變動的影響下,對於大眼鯛資源漁況的掌握,並可據以預測其變動,作為擬定因應策略之重要參考依據。
出版日期: 2015/12/30
標題title(英): The Impact of Hydrological Factors on the Red Bigeye (Priacanthus macracanthus) Fishing Conditions
作者: 賴繼昌‧黃星翰‧何珈欣‧黃建智‧吳龍靜
卷別: 23
期別: 2
頁碼: 15-25
作者 auther(英): Chi-Chang Lai, Hsing-Han Huang, Jia-Sin He, Jian-Zhi Huang and Long-Jing Wu
摘要abstract(英): In this research, the economically important bottom species of red bigeye fish were studied to understand how variations in these resources were influenced by the climate change index and environmental factors of its habitat during the 17-year period between 1997 and 2013.
The results show that Priacanthus macracanthus is the main species of red bigeye fish caught by bottom trawlers in the southwestern waters off Taiwan. The fishing grounds are mainly distributed at the depth range of 50 ~ 300 m with the CPUE being significantly higher at depths of 100 ~ 200 m. The fishing season for red bigeye fish in the southwestern waters of Taiwan previously varied other from April to May or from October to December. Since 2010, however, the fishing season has occurred from October to December, and the fishing ground data shows that the resources, were moving deeper and further off the coast.
Canonical correlation analysis (CCA) indicated that the red bigeye fish CUPE has a positive correlation with the SOI index and trash fish resource, and a negative correlation with the PDO index and salinity at a depth of 100 m. This indicates that the resource may be influenced by the effect of La Niña.
This study will help predict changes in red bigeye fish resources under the influence of hydrological environment changes, providing an important reference for fishery management in the future.
使用語言: 中文
相關檔案下載 (ODF或PDF): 下載