Ciguatera in the Philippines: Examining Reef Fish Vectors and Its Causative Benthic Dinoflagellates in Visayan and Sibuyan Seas
Ciguatera in the Philippines: Examining Reef Fish Vectors and Its Causative Benthic Dinoflagellates in Visayan and Sibuyan Seas
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菲律宾的雪卡藻：检查米沙鄢海和锡布延海的珊瑚鱼媒介及其致病底栖甲藻
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Naomasa Oshiro
中科院分区：
文献类型：
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作者：
Ulysses Montojo;Bryan Tanyag;K. B. Perelonia;Flordeliza D. Cambia;Naomasa Oshiro
雪卡毒鱼类中毒（CFP）主要是由被甘比盘鱼产生的雪卡毒素（CTX）污染的英属珊瑚鱼引起的。这类食物中毒的不可预测性对公众健康构成风险，并对鱼类贸易业产生不利影响。本研究旨在提供有关菲律宾雪卡毒的有用资料。在米沙鄢海和锡布延海采集了不同的礁鱼类和底栖甲藻的宿主大型藻类。从珊瑚鱼样品中提取雪卡毒素，并使用小鼠生物测定法定性测定其毒性。同时，通过显微镜对从宿主大型藻类中分离的有毒底栖甲藻的细胞密度进行了估算。结果表明，4.46%的珊瑚鱼样品中含有雪卡毒素。在空间分布上，米沙鄢海的卡莱斯、伊洛伊洛海域的有毒鱼类数量最多，分别为：埃松鳕、Lethrinus lentjan、笛鲷、鹦嘴鱼、点蓝子鱼和梭鱼。根据从三个采样点收集的数据，观察到鱼毒素的出现是特定地点。地理条件影响有毒样本的频率。此外，鱼的重量不是一个很好的预测鱼的毒性。对于有毒的底栖甲藻，Gambierdiscus spp.观察到在其它甲藻中具有最低的细胞密度计数，平均每100 g大型藻类7-115个细胞。另一方面，Ostreopsis spp.平均细胞密度最高的是原甲藻，为118-1,455个/100 g，其次是原甲藻（Prorocentrum spp.）（207-594个细胞/100 g大型藻类）。在旱季，鱼类毒性与该地区底栖甲藻的出现成正比。监测和管理该地区已确定的珊瑚礁鱼类媒介及其致病底栖甲藻的CFP是必要的，以促进食品安全和公平贸易的做法。
Ciguatera Fish Poisoning (CFP) is primarily caused by ingesting reef fishes contaminated with ciguatoxins (CTX) produced by the Gambierdiscus species. The unpredictability of this type of food poisoning poses risks to public health and adversely affecting the fish trade industry. This study aimed to provide useful information on ciguatera in the Philippines. Different reef fish species and host-macroalgae for benthic dinoflagellates were collected in Visayan and Sibuyan Seas. Ciguatoxins were extracted from reef fish samples, and toxicity was determined qualitatively using mouse bioassay. Meanwhile, cell density estimation of toxic benthic dinoflagellates isolated from the host-macroalgae was done through microscopy. It was observed that 4.46% of the total reef fish samples were positive with ciguatoxins. Spatially, Carles, Iloilo in Visayan sea had the highest number of toxic specimens belonging to Epinephelus merra, Lethrinus lentjan, Lutjanus campechanus, Scarus quoyi, Siganus guttatus, and Sphyraena barracuda. Based on data gathered from three sampling sites, fish toxin occurrence is observed to be site-specific. Geographical conditions affect the frequency of toxic samples. Moreover, fish weight is not a good predictor of fish toxicity. For toxic benthic dinoflagellates, Gambierdiscus spp. were observed to have the lowest cell density count among other dinoflagellates averaging 7-115 cells per 100 g macroalgae. On the other hand, Ostreopsis spp. had the highest average cell density of 118-1,455 cells per 100 g macroalgae, followed by Prorocentrum spp. (207-594 cells per 100 g macroalgae). Fish toxicity is directly proportional to the occurrence of benthic dinoflagellates in areas as seen during dry season. Monitoring and management of CFP on identified reef fish vectors and its causative benthic dinoflagellates in the area are necessary to promote food safety and fair trade practice.
将雪卡中毒与鱼类空间生态学联系起来：通过结合非致命性血液采样和生物遥测来检查大梭鱼生物毒素水平分布的新方法。
DOI：
10.1016/j.scitotenv.2011.11.053
发表时间：
2012
期刊：
The Science of the total environment
影响因子：
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作者：
O'Toole,AmandaC;DechraouiBottein,Marie-Yasmine;Danylchuk,AndyJ;Ramsdell,JohnS;Cooke,StevenJ
通讯作者：
Cooke,StevenJ