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題 名 | Species Composition and Seasonal Occurrence of Mullets (Pisces, Mugilidae) in the Tanshui Estuary Northwest Taiwan=臺灣西北部淡水河口域鯔科魚類之種類組成及季節性出現 |
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作 者 | 張至維; 曾萬年; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 27:4 2000.12[民89.12] |
頁 次 | 頁253-262 |
分類號 | 388.5 |
關鍵詞 | 鯔科; 時間演替; 鹽度; 河口; Mugilidae; Temporal succession; Salinity; Estuary; |
語 文 | 英文(English) |
中文摘要 | 本就究自1995年9月至1996年9月間,於臺灣西北部淡水河口域採集鯔科魚類, 以瞭解其種類組成及季節緎出現。結果共發現前鱗脧(Chelon affinis)、大鱗脧(Chelon macrolepis)、白脧(Chelon subvirdis)、長鰭凡鯔(Moolgarda cunnesius)、臺灣凡鯔(Moolgarda formosae)及烏魚(Mugil cephalus)等六種,發育階段分別為稚魚及幼魚的鯔科魚類。其中以大 鱗脧為最優勢種,白脧、長鰭凡鯔及臺灣凡鯔則首次於該河口域發現。鯔科稚魚的出現季節 因種而異,其時間演替與成魚的產卵期有關。烏魚主要出現期為一月、大鱗脧一月至三月(幼 魚全年出現)、前鱗脧四月(幼魚九月至十一月)、白脧五月至七月、長鰭凡鯔及臺灣凡鯔八月 至十一月。鯔科魚類在淡水河口域的出現與不同發育階段的鹽度喜好性有關。 |
英文摘要 | Species composition and seasonal occurrence of mullets in the Tanshui estuary of northwest Taiwan were studied from September 1995 through September 1996. In total, juveniles and young from 6 species of mullet (Chelon affinls, Chelon macrolepis, Chelon subviridis, Moolgarda cunnesius, Moolgarda formosae and Mugil cephalus) were collected. Among them, C. macrolepis was the most abundant, while the presence of C. subviridis, M. cunnesius and M. formosae were first recorded in the estuary. Seasonal occurrence of juvenile mullets differed among species and represented a temporal succession dependent on the spawning period of adult mullets. Juveniles of M. cephalus occurred primarily in January, while those of C. macrolepis from January to march (young mullets year round), C. affinis in April (young mullets from September to November), C. subviridis from May to July, M. formosae and M. cunnesius from August to November. The occurrence of mullets in the Tanshui estuary was also associated with their salinity preference, which change with life history stages. |
本系統中英文摘要資訊取自各篇刊載內容。