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頁籤選單縮合
題名 | Effects of Copper and Salinity on Egg Hatching of Planktonic Shrimp Acetes Intermedius Omori 1975=銅與鹽度對中型毛蝦卵孵化的影響 |
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作者 | 陳勇輝; 陳一鳴; 林雅惠; | 書刊名 | 臺灣水產學會刊 |
卷期 | 27:3 2000.09[民89.09] |
頁次 | 頁225-232 |
分類號 | 387.13 |
關鍵詞 | 中型毛蝦; 銅; 鹽度; 孵化率; 河口區; Acetes intermedius; Copper; Salinity; Hatching success; Estuary; |
語文 | 英文(English) |
中文摘要 | 中型毛蝦(Acetes intermedius Omori 1975)為臺灣西南海域中重要的經濟性蝦類,近年來研究發現,中型毛蝦會利用河口區中下游為其產卵場,銅為蝦類成長必需的微量元素,但過高的濃度時則會產生毒性。由於水中銅離子的濃度會受到環境中鹽度變化而改變,因此有可能會對在河口區孵化的卵有所影響,本研究的目的,在於探討不同銅離子濃度對中型毛蝦卵孵化率的影響,實驗結果發現,當水中銅的濃度在200 ppb以下時,中型毛蝦卵的孵化率並不隨海水中銅濃度的增高而增加,由於卵本身也含有銅且可在極低銅濃度的海水中孵化,說明卵本身的擁有足夠銅含量,無需從外界獲取銅就可以成功地孵化,此結果間接說明中型毛蝦由外海迴游至河口區產卵,並非由於河口區內較高銅離子濃度有助於提高卵的孵化率。 |
英文摘要 | The shrimp Acetes intermedius is an commercially important species in the southwestern coast off Taiwan. It has been suggested that the spawning ground of this species is mainly located within the lower part of estuaries. It is likely that the eggs hatched in estuaries will be affected by the fluctuations of copper concentration accordingly. The object of this study is to examine the effect of copper concentration on the hatching success of A. intermedius. The results showed that the hatching success did not significantly increase with elevating copper concentration until 200ppb. In addition, eggs contain copper and can successfully hatch at low copper concentration suggesting eggs have sufficient copper to hatch. This evidence reject the hypothesis that A. intermedius using estuaries as spawning ground is likely due to the relatively high concentration of copper in estuaries which was thought to be helpful to the eggs hatching. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。