A Study on the Status of Ichthyoplankton in the Waters Around Taiwan

臺灣四週水域浮游魚類現況之研究

丘臺生(Tai-Sheng Chiu) ； 陳志炘(Chih-Shin Chen)

《臺灣水產學會刊》 25卷3期 (1998/09) Pp. 161-170

https://doi.org/10.29822/JFST.199809.0001

摘要

本文報導作者等於1996年2月至1997年2月間，每2個月在台灣西海岸紅樹林區，利用袋網方式進行魚類標本之採集。共採獲32科90種之魚類，其中以大鱗鮻、前鱗鮻、尾紋雙邊魚、雜交吳郭魚為優勢魚種，佔所有魚獲的64.4％。在魚類群聚時空變化方面，所得歧異度(H')及均勻度(J')指數值偏低，顯示可能受到少數優勢魚種聚集的影響而造成輕微不規律的季節性變化。在地區及季節所得種類豐度(SR)指數值均有變化，至於在聚類及空間排序的結果，顯示在空間上有明顯的地域差異；在時間上北部地區比較有明顯的季節性變化，南部地區則無。

關鍵字

探勘 ； 形態學 ； 漁業 ； 生態學

並列摘要

The spatial and temporal patterns of species composition and abundance of fisheswere studied bimonthly using two fyke nets during February 1996 to February 1997 in themangrove swamps along the western coast of Taiwan.A total of 32 families and 90species was collected in this study.The community was dominated numerically byseveral species,in which Liza macrolepis,L.affinis,Ambassis urotaenia,andOrecochromis spp.made up 64.4% of the total catch.The diversity(H')and evenness(Pielou index)of the fish community were low and showed little seasonal change becausea few species dominated the assemblage on an irregulated basis.The overall species richness varied according to the stations and the sampling periods.Results of clustering andordination analysis indicated that spatial factor contributed to difference in the fish communitystructure,temporal variation have substantial shifts in the fish composition during thesampling periods at northern part.Meanwhile,the species composition of fishes were onapparent no revealed seasonal variation at southern part.

並列關鍵字

Survey ； Morphology ； Fisheries ； Ecology