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題 名 | Early Summer Composition and Diversity of Fish Larvae in the Coastal Waters of Hualien, Eastern Taiwan=臺灣東部花蓮沿岸水域初夏時期之仔稚魚分布及多樣性研究 |
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作 者 | 王怡甄; 陳玟妤; 李明安; | 書刊名 | 臺灣水產學會刊 |
卷 期 | 41:1 2014.03[民103.03] |
頁 次 | 頁1-14 |
分類號 | 439.2 |
關鍵詞 | 仔稚魚; 空間分布; 群集分析; Fish larvae; Spatial distribution; Cluster analysis; |
語 文 | 英文(English) |
中文摘要 | 本研究於2009年6月26日在花蓮沿岸水域進行現場水文環境及仔稚魚組成、空間分布和多樣性調查。以鼓型網共採集到140尾仔稚魚,經鑑定有20科25種。經群聚分析可將9個測站分成3群:A群僅包含測站9,總豐度為3220.405 ind./1000m3,歧異度指數為1.813,主要優勢魚種為七星底燈魚、天竺鯛屬及鮃科;B群由測站3、5、6組成,測站平均歧異度指數為2.214,總豐度為2387.25ind./1000m3,主要優勢魚種為七星底燈魚、花鰹屬及圓鰺屬;C群則由測站1、2、4、7、8組成,測站平均歧異度指數為1.429,總豐度為15590.852 ind./1000m3,主要優勢魚種為七星底燈魚、鼠銜魚科及眶燈魚屬A群。本文亦就仔稚魚群聚的組成特性加以說明與討論。 |
英文摘要 | This study investigated the composition and diversity of fish larvae with the hydrological environment in the coastal waters of Hualien on June 26, 2009. The range of surface water temperature and salinity varied from 25.56 °C to 26.05 °C and from 33.77 to 34.69, respectively. A total of 140 larvae representing 20 families and 25 species were collected using a bongo net from 9 stations during this survey. The abundance and species composition varied by station. The first 5 dominant species of Benthosema pterotum, Callionymidae spp., Auxis spp., Diaphus A group, and Decapterus spp. occupied 69.61%, 8.9%, 3.44%, 2.95%, and 1.58% of the total catch, respectively. According to the dendrogram from a cluster analysis of the fish larvae, the larval assemblages of 9 sampling stations were divided into 3 groups. Group A comprised only Station 9, with a total abundance of 3220.4 ind./1000 m3 and the dominant species was B. pterotum (69.12%). The larval abundance in Group B, comprising Stations 3, 5, and 6, was the lowest among the groups, with approximately 2387.2 ind./1000 m3 and an average diversity index of 2.21. The 4 most dominant species were B. pterotum (19.03%), Auxis spp. (14.13%), Decapterus spp. (8.98%), and Leiognathus spp. (8.67%). Group C exhibited the highest larval abundance, with 15590.8 ind./1000 m3 and the an average diversity index of 1.4. The 3 most dominant species were B. pterotum (66.31%), Callionymidae spp. (8.96%), and Diaphus A group (3.54%). Possible interpretations of fish larvae assemblages and diversity are provided. |
本系統中英文摘要資訊取自各篇刊載內容。