Microalgae applied to the development of technology in aquaculture
  • 9

          Shrimp is one of the high-priced aquaculture products. According to the Food and Agriculture Organization (FAO) statistics, the global shrimp market in 2012 was 40 billion US dollars. The main markets are in Asia, Europe, North America, Central and South America, Africa and Oceania. Asia is the world's largest export region, accounting for 54.8% of the world's total exports in 2009. The top five exporting countries are Thailand, China, Vietnam, India and Indonesia. During 1984-1987, Taiwan’s shrimp farming practice flourished, creating Taiwan’s reputation as a “cultured shrimp kingdom”, mainly in the shrimp farming technology. However, the invasion of various shrimp viruses, drug use and abuse by farmers (disease control drugs, disinfectants, herbicides, insecticides, algae growth agents, hormones and antibiotics) created a negative environmental impact. Severe pollution with various chemicals effectively improved the drug resistance of environmental pathogens and high rate of untreatable infections could be seen among farmers, coastal organisms and aquatic products consumers. The current survival rate of White shrimp is less than 40%, and the survival rate of Kuruma prawn cultures is less than 20%. The annual output of shrimp farming in Taiwan is decreasing year by year. The point is that there is an increased incidence of cancer in humans every year since they are at the top of the food chain and bioaccumulation of several xenochemicals is inevitable. The food safety problem also cannot be ignored. Therefore, we attempted to develop a non-toxic healthy shrimp farming procedure with high survival rate and lower environmental impacts using sea water resources. The entire process is chemical free to ensure consumer safety and the farming procedure is sustainable. Our team has stepped into the aquaculture field with the unique advantages of microalgae/bacteria, emphasizing the concept of ecological balance for Black Tiger shrimp and Kuruma prawn culture. Using a variety of microalgae and probiotics that promote the growth of shrimps as a "health food" for shrimps, a high-quality and sustainable breeding environment was developed for shrimp culture with robust shrimp growth and higher survival rates without any antibiotics/drugs. This goal has also been favored by Silicon Valley Taiwan Angels (SVT Angels) to attract their investments. In addition, our team signed a MOU with OPBIO Factory Co., Ltd. (Okinawa, Japan) and Datuk, Malaysia. The application of microalgae/bacteria in aquaculture technology and its promotion in the international market will increase Taiwan's competitiveness.

          蝦類為水產養殖業之高單價水產品之一,一般常見的蝦類包含淡水長臂大蝦、草蝦、沙蝦、斑節蝦、白蝦、螯蝦、龍蝦等。根據聯合國糧農組織(Food and Agriculture Organization,FAO)統計資料,2012年全球蝦類市場規模為400億美元,主要市場在亞洲、歐洲、北美洲、中南美、非洲與大洋洲,其中主要占最大市場為亞洲,約占全球58%;亞洲為全球最大出口地區,於2009年占全球總出口量的54.8%,主要前五大出口國分別為泰國、中國、越南、印度與印尼,其中泰國為蝦類出口的最主要國家。而台灣過去在1984-1987年時期,蝦類養殖曾蓬勃發展,創造了台灣「草蝦養殖王國」的榮景。但之後由於各種蝦類病毒侵襲,加上養殖戶過度使用各種藥物 (疾病防治藥、消毒劑、除草劑、殺蟲劑、藻類促長劑、賀爾蒙及抗生素),造成對環境的衝擊及對水產品、沿海生物、水產物消費者產生毒害,無形中提高環境病菌的抗藥性,養殖物體內的藥物殘留,導致目前白蝦養殖之存活率皆不到四成,斑節蝦養殖存活率更低至不到二成。台灣養蝦年產量逐年下降,造成養蝦王國的稱號拱手讓人,且因藥物濫用導致居民的罹癌率逐年增加,食安問題實不可忽視。因此本研究團隊主要想創造無毒、高存活率、無環境衝擊、海水資源高度利用之蝦類養殖技術,發展健康養蝦程序,讓食者安心,以達綠色永續經營之概念。本團隊以獨步的藻種優勢,正式踏入水產養殖領域,強調以生態平衡概念進行白蝦、草蝦及斑節蝦養殖,利用多種可促進蝦類生長的微藻及益生菌作為蝦的『保健食品』,打造出優質的養殖環境,增強蝦體對環境的抵抗力,過程中不添加任何抗生素及藥物,以達到無毒無污染的蝦類養殖程序。此目標也因而獲得天使創投陳勁初先生的青睞及投資。除此之外,本團隊更與日本沖繩的OPBIO Factory Co., Ltd.以及馬來西亞廠商簽訂合作意願書,將微藻應用水產養殖技術推向國際,增加台灣國際競爭力。