321 Isochrysis galbana 球等鞭金藻 Phylum: Haptophyta 门：定鞭毛門 Class: Coccolithophyceae 纲：顆石藻綱 Order: Isochrysidales 目：等鞭藻目 Family: Isochrysidaceae 科：等鞭藻科 Morphology Cells are golden-brown, solitary, motile, and varied in morphology. Most of cells are elliptical. Cell wall is absent. Two flagella arise apically with one to two times of cell lengths. Cells have 2 large and elongated chloroplasts with varied shape. 形態 細胞金黃褐色，單獨生活，具運動能力，形狀多變。大多數細胞呈橢圓形。細胞無 細胞壁，前端有兩條等長的鞭毛，長度為細胞長度的1-2倍。色素體兩個，大而長， 形狀多變。 Ecology and distribution Isochrysis galbana is planktonic species and distributed in coastal, temperate waters. Isochrysis galbana is outstanding food for various bivalve larvae and is now widely used in aquaculture industry. 生態與分佈 球等鞭金藻是浮游物種，主要分佈於溫帶的近岸，是海產雙殼類動物幼蟲的理想餌 料，在養殖業中廣泛應用。 Size
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