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題 名 | 夏季臺灣東北部海域仔稚魚的時空分布特性之研究=Spatio-temporal Characteristics of Larval Fish Assemblages in the Northeastern Waters of Taiwan in Summer |
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作 者 | 陳人平; 潘佳怡; 李明安; 王友慈; | 書刊名 | 水產研究 |
卷 期 | 18:2 2010.12[民99.12] |
頁 次 | 頁1-16 |
分類號 | 439.2 |
關鍵詞 | 仔稚魚; 臺灣東北部海域; 夏季; 時空分布; 次表層水湧升; Larval fish; Northeastern waters of Taiwan; Summer; Spatio-temporal characteristics; Upwelling; |
語 文 | 中文(Chinese) |
中文摘要 | 為了解夏季時臺灣東北部海域仔稚魚種類組成及其豐度與水文環境之相關性,本研究於2005年6、7月及2006年8、9月間,在該海域所分別設置的36及38個測站,利用行政院農委會水產試驗所之海建號試驗船,分別以 Bongo net 與 ORI net進行斜拖來採集仔稚魚。採集前,並投放鹽溫深儀來測量水文因子之特性。研究期間共計採獲76科183種4,819尾仔稚魚,各月份的種類組成有很大的差異,6月的最優勢種為花鰹屬 (Auxis sp.)、7月為七星魚 (Benthosema pterotum)、8、9月均為日本鯷 (Engraulis japonicus)。各月份的仔稚魚組成均各可分為6個群聚。10 m水深處的水溫和鹽度的變化值可做為次表層水湧升的指標。仔稚魚豐度、種類歧異度和群聚構造的空間分布均可能是受到沿著陸棚邊緣發生的次表層水湧升現象所影響。 |
英文摘要 | To clarify the spatio-temporal variations of larval fish assemblages in the northeastern waters of Taiwan, fish larvae were collected from 36 and 38 predesigned stations by using Bongo or ORI nets on R/V Hai-Chieng during June and July 2005 and August and September 2006, respectively. Temperature and salinity of water column, and the water volume being filtered during sampling tow were also measured. A total of 4,819 individuals of larval fish belonging to 76 families and 183 taxa were identified. The predominant species were Auxis sp. (June, 2005), Benthosema pterotum (July, 2005) and Engraulis japonicus (August and September, 2006). There were 6 assemblages of larval fishes in each month. Water temperature and salinity in the 10 m depth could be used as an indicators to identify upwelling water. Spatial distributions of abundance, species diversity index and assemblage structures of the larval fishes might be influenced by the upwelling which occurred alone the margins of the continental shelf. |
本系統中英文摘要資訊取自各篇刊載內容。