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頁籤選單縮合
題名 | Species Composition and Distribution of Fish Larvae in Yenliao Bay, Northeastern Taiwan=鹽寮灣仔魚之種類組成及分布 |
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作者 | 曾萬年; 王友慈; 陳楊宗; | 書刊名 | 動物研究學刊 |
卷期 | 36:2 1997.04[民86.04] |
頁次 | 頁146-158 |
分類號 | 439.2 |
關鍵詞 | 仔魚; 種類組成; 季節性出現; 空間分布; Fish larvae; Species composition; Seasonal occurrence; Spatial distribution; |
語文 | 英文(English) |
中文摘要 | 1992 年 10 月起至 1993 年 9 月止, 按月於臺灣東北部鹽寮灣的 11 個測站 以 Maruchi 仔稚魚網進行採集,共計採獲仔魚 9969 尾,分屬於 80 科 138 種。仔稚魚群 集包括岩礁性、河口性及沿岸表層性種類。雀鯛科仔魚的數量最多,佔總採集尾數的 23%。 其次是天竺鯛科 (15%)、雙邊魚 (3%)、圓花鰹 (9%)、�雓� (6%)、�貌窸蓮� (6%)、燈籠魚 科 (4%)、三鰭�翱� (3%)、日本鯷 (3%)、大眼鯛 (2%)、及石狗公 (2%)。 這 11 種合計佔 總採集尾數的 82%。仔稚魚種類的多樣性與鹽寮灣的地質、水文環境的複雜性有關,而且隨 季節及水深而改變。仔稚魚種類及數量 5 月達最高峰。 近岸測站的仔魚比離岸測站多。表 層性仔在外海孵化後,逐漸向近岸移動。沿岸淺水域生產力高,動物性浮游生物豐富,是仔 稚魚漁場形成的主因。仔魚與動物性浮游生物數量的空間變化不一致現象,以及仔魚的出現 與生活史變化之關係也在文中序以討論。 |
英文摘要 | Wann-Nian Tzeng, Yu-Tzu Wang and Yarng Tzung Chern (1997) Species comp osition and distribution of fish larvae in Yenliao Bay, northeastern Taiwan. Zoological Studies 36(2): 146-158. Fish larvae were col-lected monthly in Yenliao Bay in northeastern Taiwan, using a Maruchi larval net at 11 stations from October 1992 to September 1993. A total of 9 969 larval fish representing 80 families and 138 species were collected. The larval fish assemblages included coral-reef, estuarine, and coastal pelagic species. Pomacentridae were the most abundant, making up 23% of the total catch, followed by Apogonidae (15%), Ambassis sp. (9%), Auxis sp. (9%), Gobiidae (6%), Carangidae (6%), Myctophidae (4%), Tripterygiidae (3%), Engraulis japonicus (3%), Priacanthus macracanthus (2%), and Sebastiscus marmoratus (2%). These 11 species groups constituted approximately 82% of the total collection. The abundance and number of species of fish larvae increased with temperature and reached a peak in May. Larvae were more abundant in the nearshore than the offshore stations. Pelagic fish (e.g., E japonicus) spawned in offshore waters, and their larvae migrated to nearshore waters. The distribution of fish larvae in nearshore waters was independent of the distribution of plankton. The high species diversity reflects the complicated geomorphology and hy-drography of the embayment environment. The mismatch in the distributions of peak abundance between fish larvae and zooplankton, and the relationship between the timing of occurrence and life hist ory transition of fish larvae are discussed. |
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