288 Prorocentrum lima 利瑪原甲藻 Phylum: Dinoflagellata 门：甲藻門 Class: Dinophyceae 纲：甲藻綱 Order: Prorocentrales 目：原甲藻目 Family: Prorocentraceae 科：原甲藻科 Morphology Cells are oblong or ovate in shape, broad in the middle region and narrow at the anterior end. Both valves are smooth, and concave in the center area. A circle of marginal pores with uniform size are evenly distributed around the periphery of the valve, generally. Occasionally no marginal pores or only partially filled pores are observed on valves of some cells. 形態 細胞呈長圓形或卵形，中部最寬，頂端收窄。上下兩殼甲板較厚，平滑，中間凹， 散落一些小孔。細胞邊緣一般具一圈均勻分佈大小均一的小孔。偶爾有部分細胞不 具邊緣小孔或僅具一些填充的孔。 Ecology and distribution Prorocentrum lima is cosmopolitan in both neritic and estuarine waters. This species is benthic, epiphytic and tychoplanktonic. This species could attach the surface of sand, macroalgae, benthic debris, coral reefs and some floating detritus (Faust and Gulledge, 2002). Prorocentrum lima could produce a number of toxic substances: fast-acting toxin (FAT), prorocentrolide, diarrhetic shellfish poison (DSP), okadaic acid (OA), and dinophysostoxin (DTX-1、DTX-2、DTX-4). 生態與分佈
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