雲林台西沿海為本省牡蠣養殖區之一，為提升養殖牡蠣經濟價值，農委會海水繁養殖中心台西試驗場數年前開始進行黃金牡蠣之養殖育種研究。為了解黃金牡蠣與本省養殖牡蠣種類及成長之差異，本研究進行一、黃金牡蠣物種鑑定；二、黃金牡蠣野外族群量調查；三、黃金牡蠣(G)與一般養殖牡蠣(W)之成長比較實驗。粒線體COI基因鑑定結果顯示黃金牡蠣與傳統養殖之葡萄牙牡蠣(Crassostrea an-gulata)為同一物種。天然附苗之養殖牡蠣中，黃金牡蠣占有的比例為台西9.7±5.2%；七股9.5±5.4%；金門8.4±5.8%，各樣點比例相近(p>0.05)。於2017年8月至2018年4月間，在台西試驗場設置兩養殖池(P1、P2)進行成長比較實驗，結果顯示，P1G、P1W、P2G以及P2W四組每月之存活率均達95%以上；實驗期間四組之總存活率，分別為84.0%、86.7%、93.3%和95.0%，各組之月存活率與總存活率均無顯著差異(p>0.05)。P1、P2池之pH、鹽度、葉綠素a有所不同，牡蠣成長增幅也有差異，換言之，同一池的黃金與一般牡蠣成長趨勢相似，但整體而言，黃金牡蠣平均殼長、殼面積和體積增幅不及一般養殖牡蠣，但組織成長表現較佳，造成此結果的原因可能與調控金黃殼色的基因有關聯，但也不排除此差異與選取黃金牡蠣種貝或實驗子代時之抽樣誤差有關。

Taixi is one of the oyster farming areas in Taiwan. To increase the commercial value of cultured oyster, the Mariculture Research Center of Fisheries Research Institute has conducted breeding programs on golden oyster years ago. In this study, the differences between golden oyster and general cultured oyster were investigated through species identification and growth comparison. The research was divided into (i) species identification of golden oyster, (ii) estimation the occurrence of golden oyster in the field, and (iii) comparing the growth and survival between golden oyster (G) and general cultured oyster (W). Based on the mitochondrial cytochrome oxidase I (COI) sequence data, golden oyster and general cultured oyster both were Crassostrea angulata. The percentages of golden oyster in Taixi, Qigu, and Kinmen were insignificantly different (p>0.05), i.e., 9.7±5.2%, 9.5±5.4%, and 8.4±5.8%, respectively. The growth experiments were conducted in two ponds (P1、P2) located in Taixi during the period from August 2017 to April 2018. Monthly survival rates of P1G, P1W, P2G, and P2W were all above 95%. And, overall survival rates of them were 84.0%, 86.7%, 93.3%, and 95.0%, respectively. No significant difference was found among the four groups in monthly or overall survival rates (p>0.05). Water quality, including pH, salinity, DO and chlorophyll a, was different between P1 and P2 which might result in differential growth in experimental oysters. In other words, golden and general cultured oysters in the same pond had a similar growth trend. General speaking, the increments of average shell length, shell area and volume of golden oyster were smaller than the general one except for tissue weight. The inferior growth of golden oyster may link to genes determining shell color. Moreover, sampling bias through a small stock of bred parents and offspring can not be ruled out neither.

論文審定書 i
中文摘要 ii
英文摘要 iii
目錄 iv
表目錄. v
圖目錄 vi
壹、前言 1
貳、材料與方法 5
參、結果 12
肆、討論 17
伍、結論 22
陸、參考文獻 23
附表 29
附圖 31

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