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頁籤選單縮合
題 名 | The Density Distribution and Co-occurred Families of Ichthyoplankton in the Eastern Waters of Taiwan=臺灣東部水域的浮游魚類密度分布及科間關聯 |
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作 者 | 丘臺生; 張光瑢; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 18:2 1991.06[民80.06] |
頁 次 | 頁77-88 |
分類號 | 439.2 |
關鍵詞 | 分布; 水域; 東部; 浮游; 密度; 魚類; 臺灣; |
語 文 | 英文(English) |
中文摘要 | 本研究以浮游魚類採集網及鹽溫儀在臺灣東部水域進行探測,以瞭解臺灣東部水域的浮游魚類資源狀態,以及其與海洋環境間的關係。本報告包括:(1)採樣測線的溫鹽圖;(2)魚卵、仔稚魚及同網捕獲浮游動物的密度;(3)五個主要魚類仔稚魚的空間分布;及(4)全區仔稚魚共同出現的科。 由鹽溫圖顯示,在花蓮以南存在著一個沿岸水團,但沿岸水團在花蓮附近不明顯,在蘇澳以北則重現。以個體量計算,魚卵之密度範圍為0-1,843個/1,000 M3、仔稚魚為92-2,180尾/1,000 M3。以重量計算,魚卵之密度範圍為0-0.9克/1,000 M3,仔稚魚為0.2-14.08克1,000 M3。密度分布的型態顯示,南部水域之密度較北部為低。一般而言,在沿岸水域之密度較遠岸區為高,但南部之沿岸其較高密度之趨勢較不明顯。五個最普遍的種是Vinciguerria nimbaria, Symbolophorus evermanni, Benthosema pterotum, Thunnus thynnus, 及 Lutjanus vitta。全區有共同出現趨勢的科是由Myctophidae, Bregmacerotidae, Carangidae, Paralepididae, Gonostomatidae, Scombridae, Lutjanidae, Serranidae 及 Gemphylidae所組成。 |
英文摘要 | To understand the status of fishery resources, the ichthyoplankton abundance and the associated environmental factors were investigated during the period of 1988-1989. In this study, we present 1) the T-S diagrams of sampling transect lines; 2) the general distribution patterns on the densities of fish eggs, fish larvae, and zooplankton; 3) the larval distribution patterns of five major species, and 4) the families with co-occurring larvae in the eastern waters of Taiwan. T-S diagrams indicated that a coastal water mass from Hua-lien extended southward. The above coastal water mass became indistinct between Hua-lien and Su-ao and another distinct coastal water mass established in the northern part of Su-ao. The density in number of fish eggs ranged 0-1,843 inds/1,000 M3 and those of fish larvae ranged 92-2,180 inds/1,000 M3. The density in weight of fish eggs ranged 0-0.9 g/1,000 M3, and those of fish larvae ranged 0.2-14.0 g/1,000 M3. The densities of fish eggs and fish larvae in the southern subregion were lower than those in the northern. Moreover, higher abundance of fish eggs and fish larvae were found in the coastal waters of the northern waters. Among those widespread larvae, the five most abundant species were Vinciguerria nimbaria, Symbolophorus evermanni, Benthosema pterotum, Thunnus thynnus, and Lutjanus vitta. The families in which the larvae co-occurred most frequently in the eastern waters of Taiwan were Myctophidae, Bregmacerotidae, Carangidae, Paralepididae, Gonostomatidae, Scombridae, Lutjanidae, Serranidae, and Gemphylidae. |
本系統中英文摘要資訊取自各篇刊載內容。