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- Seasonal and Hydrographic Variations of Ichthyoplankton Density and Composition in the Kuroshio Edge Exchange Area off Northeastern Taiwan
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題名 | Seasonal and Hydrographic Variations of Ichthyoplankton Density and Composition in the Kuroshio Edge Exchange Area off Northeastern Taiwan=臺灣東北黑潮邊緣交換區浮游魚類密度及組成之季節及水文變異 |
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作者姓名(中文) | 黃俊邠; 丘臺生; | 書刊名 | 動物研究學刊 |
卷期 | 37:1 1998.01[民87.01] |
頁次 | 頁63-73 |
分類號 | 388.5 |
關鍵詞 | 仔稚魚; 東海陸棚; 黑潮; Larval fish; East china sea shelf; Kuroshio; |
語文 | 英文(English) |
中文摘要 | 我們用取自臺灣東北海域的14次航海327個採樣(1989年6月至1992年9月), 來說明此區域浮游魚類的密度及組成受季節及水文因素所產生之變動。 一般而言,浮游魚類密度在此區域之變化循此形式變動:冬季密度最低,春季漸增,夏 季遠到最高,及秋季漸減。浮游魚類在三個水文生態區之平均密度顯示:東海陸棚水最高, 黑潮水其次,及混合水最低。本試驗的四年中,共檢視了59789尾魚,它們至少屬於124科 的547物種。若以每個採樣多於1%的物種定為主要種,則主要種約佔60%,且此主要種相 對於季節及水文生態相均有差異。在春季主要種為Decapterus spp. (14.01%)及Auxis spp. (6.23%);在夏季為Auxis spp. (6.91%)及Benthosema pterotum (5.80%);在秋季為B. pterotum (55.23%), gobiids (4.14%)及Synagrops sp. (3.17%);及在冬季為B. pterotum (15.35%)及 Gonostoma gracile (7.48%)。在三個水文生態區之主要種分別為:在東海陸棚水B. pterotum (5.61%)及Vinciguerria nimbaria (4.43%)。用聚類分析所得之樹狀圖顯示七個關聯物種群,此 物種群可分別用季節-水文區為特性加以說明。 |
英文摘要 | Jiunn-Bin Huang and Tai-Sheng Chiu (1998) Seasonal and hydrographic variations of ichthyoplankton density and composition in the Kuroshio edge exchange area off northeastern Taiwan. Zoological Studies 37 (1): 63-73. A total of 327 ichthyoplankton samples were taken during 14 druises from June 1989 to September 1992 in the waters off northeastern Taiwan. The density of ichthyoplankton was lowest in winter, increased in spring, reached the maximum in summer, and declined in autumn. Average densities in the 3 hydrographic ecotopes indicate that the ichthyoplankton density was highest in the East China Sea Shelf (ECS), moderate in the Kuroshio Current (KUR), and lowest in the mixing zone (MIX). In total, 59789 individuals of ichthyoplankton assigned to at least 124 families and 547 species were collected. The major ichthyoplankton species, comprising about 60% of the total catch , were distinctive in different seasons and waters. Decapterus spp. (14.01%) and Auxis spp. (6.23%) wer abundant in spring; Auxis spp. (6.91%) and Benthosema pterotum (5.80%) in summer; B. pterotum (55.23%), gobiids (4.14%), and Synagrops sp. (3.17%) in autumn; and B. pterotum (15.35%) and Gonostoma gracile (7.48%) in winter. The abundant ichthyoplankton species in the 3 hydrographic ecotopes were B. pterotum (22.98%) and Auxis spp. (5.11%) in ECS; Decapterus spp. (28.60%) and Auxs spp. (7.10%) in MIX; and B. pterotum (5.61%) and Vinciguerria nimbaria (4.43%) in KUR. The dendrogram based on major ichthyoplankton species exhibits 7 species-associated groups. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。