温度对新月菱形藻、铲状菱形藻和杷夫藻的生长、总脂肪含量以及脂肪酸组成的影响

EFFECTOF TEMPERATURE ON GROWH, TOTAL LIPID CONTENT AND FATTY ACID COMPOSITION OF THE MICROALGAE, NITZSCHIA CLOSTORIUM,NITZSCHIA PALEACEA AND PA VLOVA SP.

摘要: 作为虾、蟹、贝幼体以及海水仔鱼的生物饵料，新月菱形藻和铲状菱形藻提供的必需脂肪酸主要是２０∶５（ｎ－３），杷夫藻提供的主要是２２∶６（ｎ－３），在本试验条件下既能使微藻快速生长，又能合成较多脂肪以及（ｎ－３）高度不饱和脂肪酸的最适温度因藻种而异，新月菱形藻为２０℃、铲状菱形藻为１５℃、杷夫藻为２０℃。

Abstract: The changes o f grow th, total lipid content and fat ty acid composit ion o f N . clost erium , N . p leacea and Pavlova sp . culture d at dif ferent temperatur e w ere investig ate d. As essentia l fa tty acid ( EFA) o f la rval o f shrimp, crab, bivalves and marine f ish, 20B5( n - 3) wa s pr ov ided by N . clost erium and N . pl eacea , 22B6( n- 3) by Pavkova sp . . Opt imum temperatur e fo r maximum l ipid and EFA pro ductio n tog ether w ith faster growth was 20 e fo r N . closterium a nd Pavlova sp . , 15 e fo r N . p al eacea.