農業部水產試驗所全球資訊網

由於人類大量使用石化能源而排放高濃度二氧化碳造成地球暖化，因此將空氣中的二氧化碳的減碳技術成為現階段極重要的探討議題，由於貝類在成長過程中，其外殼累積大量的碳酸鈣，而此碳酸鈣在天然環境中極為穩定，是極佳的固碳技術，值得研究。另，因地球暖化，養殖生物對於較高水溫的適應，及適應高水溫品系之育種，也須提早因應而進行研究。本研究以高溫36-37℃養殖牡蠣稚貝與種貝，將活存下來種苗與種貝繼續養殖與繁殖，篩選耐高溫之牡蠣。以2種溫度範圍(29,32,35,38℃，35,36,37,38℃)來探討牡蠣之耐溫範圍。另，進行包含牡蠣之三種貝類之固碳能力探討。本研究中牡蠣在38℃時活存率會降到2.9%與7.1%之間，因此夏天高溫期間從事牡蠣魚塭養殖有必要採取降溫措。三種二枚貝的固碳效益比較試驗中，發現馬蹄蛤的固碳效益最高，但因高死亡率而影響實驗的結果。而牡蠣年產量約27萬噸較文蛤的5萬噸高出5倍之多，實在有必要對牡蠣固碳效益做進一步的探討。

研究報告摘要(英) Due to mass emission of high density of carbon dioxide of modern industry, human meet the earth warming. It is an important approach to catch the carbon dioxide from air now. Mass carbon dioxide are accumulated into the shells of mollusks during growth. This kind of compound of calcium carbonate is stable in the natural environment. It is interesting to research further. Due to the climate change of the earth, it is necessary to study early the adaptation of organism and the selective breeding for high temperature environment. This study is conducted to select the high temporal tolerable strain of oyster. The study of temporal tolerance of oyster was conducted when they were treated during two temperature range(29,32,35,38℃ and 35,36,37,38℃). The ability of carbon fixation of oyster was studied. In this study the survival rate decreased between 2.9% and 7.1%之when reared in an 38℃water temperature environment for 10 days. Therefore, it is necessary to decrease water temperature to reduce the mortality during summer，In the study of ability of carbon fixation of three bivalves, oyster is an good target to research further in the future.