Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche, 60131, Ancona, Italy; Consorzio Interuniversitario per le Scienze del Mare, CoNISMa, ULR Ancona, Ancona, Italy.
Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, via Brecce Bianche, 60131, Ancona, Italy; Consorzio Interuniversitario per le Scienze del Mare, CoNISMa, ULR Ancona, Ancona, Italy.
Mar Environ Res. 2020 Mar;155:104891. doi: 10.1016/j.marenvres.2020.104891. Epub 2020 Jan 23.
Few studies have been carried out on benthic dinoflagellates along the Florida Keys, and little is known about their distribution or toxicity in Florida Bay. Here, the distribution and abundance of benthic dinoflagellates was explored in northern and eastern Florida Bay and along the bay and ocean sides of the Florida Keys. Isolates were brought into culture and their toxicity was tested with oyster larvae bioassays. Seven genera were detected, including Prorocentrum, Coolia, Ostreopsis, Amphidinium, Gambierdiscus, Fukuyoa (all included potentially toxic species) and Sinophysis. In general, distribution increased with water temperature and nutrient availability, especially that of phosphate. This study documented the first record of Coolia santacroce in the Florida Keys. Potential toxic effects of Gambierdiscus caribaeus, the abundance of which exceeded 1000 cells g fw at some sites, were established using oyster larvae as a bioassay organism. These findings suggest a potential risk of ciguatera fish poisoning in this area.
沿佛罗里达群岛对底栖甲藻的研究甚少，对其在佛罗里达湾的分布和毒性知之甚少。本研究探索了佛罗里达湾北部和东部以及佛罗里达群岛的海湾和海洋两侧的底栖甲藻的分布和丰度。将分离株培养，并通过牡蛎幼虫生物测定测试其毒性。共检测到七个属，包括原甲藻属、库利藻属、海洋岛藻属、角藻属、双鞭甲藻属、鳍藻属（均包含潜在毒性物种）和中华裸甲藻。一般来说，分布随水温升高和营养物质（尤其是磷酸盐）的可用性而增加。本研究记录了佛罗里达群岛中库利藻属 santacroce 的首次发现。使用牡蛎幼虫作为生物测定生物，建立了 Gambierdiscus caribaeus（在某些地点的丰度超过 1000 个细胞 g fw）的潜在毒性效应。这些发现表明该地区存在石斑鱼中毒的潜在风险。
