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建立牡蠣採苗優化及產地鑑別技術

  • 日期:111-10-24
  • 計畫編號:110農科1.6.1-水-A2
  • 年度:2021
  • 領域:農業科技管理及產業化
  • 主持人:黃閔裕
  • 研究人員:蕭聖代、張引、張芸甄、邱允志、徐捷、謝伯建、葉鳳美、黃翔瑜

牡蠣為臺灣重要的經濟性貝類,如何有效採得品質良好之牡蠣苗,為整個牡蠣養殖產業中最關鍵的過程。目前臺灣牡蠣養殖業最主要的附苗區位於雲林縣沿海,來源為海中野生之牡蠣苗。但近年來,天然牡蠣苗數量在附苗期常發生劇烈變動,造成附苗蚵民收成不穩,暨而影響到下游牡蠣養殖業者對牡蠣苗之需求。本研究於雲林外海11處地點以標準附苗樁調查與分析最佳附苗水層分佈,同時以牡蠣殼串進行採苗成效驗證。同時因近年來發生進口中國及東南亞牡蠣混充國產牡蠣的情形,導致國內牡蠣產業銷失衡影響蚵農權益,必須開發相應的牡蠣產地辨別技術。本計畫針對穩定同位素分析技術,建立可行的牡蠣採樣及標準作業程序,擬透過不同環境中同位素的比值不同,建置臺灣產牡蠣之穩定同位素指紋圖譜資料庫,作為國產牡蠣之產地辨別標準。

研究報告摘要(英)


Oyster is an important economic shellfish in Taiwan. How to effectively harvest good-quality oyster spat is the most critical process in the entire oyster farming industry. In recent years, the number of natural oyster spat has often undergone drastic changes during the seedling period, resulting in unstable harvests of the seedling oysters, and affecting the downstream oyster farmers' demand for oyster spat. In this study, standard seedling piles were used to investigate and analyze the best seedling water layer distribution at 11 locations of Yunlin. At the same time, oyster shell strings were used to verify the effectiveness of spats harvesting. In the same time, imported oysters mixed with domestic oysters have confused the market price. Therefore, it is necessary to develop corresponding oyster origin identification technology. This project establishes feasible oyster sampling and standard operating procedures based on stable isotope analysis technology. It is planned to build a stable isotope fingerprint database of Taiwanese oysters based on the difference of isotope ratios in different environments as a standard for identifying the origin of domestic oysters.