Three Species of Caligus(Copepoda:Caligidae)Parasitic on Fishes of the Northeast Coast of Taiwan

三種寄生于臺灣東北海岸的海水魚體上之魚虱（橈足類亞綱：魚虱科）

何汝諧(Ju-Shey Ho) ； 林清龍(Ching-Long Lin)

《臺灣水產學會刊》 30卷1期 (2003/03) Pp. 55-70

https://doi.org/10.29822/JFST.200303.0005

摘要

本報告利用年齡結構體長別漁獲量分析法(A-SCALA)評估中西太平洋的大目鮪資源，結果顯示在2002年初大目鮪的生物量低於產生最大持續生產量(MSY)時之生物量，同時最近大目鮪的平均漁獲體重遠低於臨界年齡(critical age)時之平均體重（32.5公斤），顯示漁獲努力量必須重新分配以減少小型大目鮪之漁獲。此分析結果對大量漁獲小型魚之印尼漁業非常敏感，因此加強收集印尼海域的大目鮪漁獲量、漁獲努力量及體長資料是管理中西太平洋大目鮪的一項首要工作。

關鍵字

魚虱科 ； 魚虱屬 ； 寄生橈足類 ； 海水魚 ； 臺灣

並列摘要

An age-structured statistical catch-at-length analysis(A-SCALA)is applied to thebigeye tuna population in the western and central Pacific Ocean(WCPO).The resultssuggest that the biomass at the start of 2002 is below the level that is required to producemaximum sustainable yield(MSY)and will reduce under average conditions and recenteffort levels.The recent average weight of bigeye in the catch is much lower than theweight which would maximize yields suggesting that reallocation of effort from fishingmethods that capture small bigeye to methods that capture large bigeye would substantiallyincrease yields.This is also supported by MSY calculations carried out separately foreach method type.The results of the analyses are very sensitive to the Indonesian fisheries,which catch a large number of small bigeye.Unfortunately,the amount and size structureof the catch from the Indonesian fisheries is highly uncertain and more data from thesefisheries should be a priority for the management of bigeye tuna in the WCPO.

並列關鍵字

Sea Lice ； Caligidae ； Caligus ； Parasitic Copepods ； Marine Fishes ； Taiwan