This study involves monitoring both benthic and planktonic abundances of the toxic dinoflagellate Ostreopsis fattorussoi in 5 stations along the Lebanese coast (Eastern Mediterranean); it extended from June 2014 to July 2016 and aims to study the dynamics of its development. Results revealed its presence year round along the coast, presenting seasonal blooms, both epiphytic and planktonic. A major bloom (maximum of 880 694 cells/g FW and 18 000 cells/L) occurred early in the summer (June–July), followed by a minor one in the fall (October–November) ($\le$ 50 000 cell/g FW). Its development seemed influenced by a combination of multiple environmental parameters. Water temperature seemed to play a major role in its development, as it appeared to be a thermophilic species, with maximum abundances per site reached between 27 °C and 30.5 °C. Its development could be facilitated by some agitation resulting from winds. Results concerning the role of nutrients and other environmental parameters remain inconclusive.

这项研究涉及在黎巴嫩海岸（地中海东部）的5个站点监测有毒的鞭毛藻（Ostreopsis fattorussoi）的底栖和浮游生物丰度；它从2014年6月延长至2016年7月，旨在研究其发展动力。结果显示它全年都在沿海存在，呈现出附生和浮游的季节性开花。夏季初（6月至7月）出现了一次大花开（最高880694个细胞/克FW，18000个细胞/升），随后在秋季（10月至11月）出现了小花（$\le$5万个细胞/克FW）。它的发展似乎受多种环境参数的影响。水温似乎是其嗜热菌种，在其发展过程中似乎起着主要作用，每个部位的最大丰度达到27°C至30.5°C之间。风的搅动可促进其发展。关于养分的作用和其他环境参数的结果尚无定论。