珠江口海域中华白海豚生存现状研究

Study on the Survival Status of Chinese White Dolphins in the Pearl River Estuary

文章旨在研究国家一级濒危动物中华白海豚的生存现状、搁浅原因及死因,为中华白海豚的远期保育工作提供基础资料及相关建议。通过分析从珠江口中华白海豚保护区管理局所获2003-2019年初救助信息记录数据,得出中华白海豚年搁浅数量总体呈上升趋势,雄性中华白海豚搁浅数量超过雌性中华白海豚、中华白海豚搁浅死因主要为饥饿致死、螺旋桨致死等,以及主要季度性原因是疾病、与母豚分开等结论。

The purpose of this paper is to study the survival status,grounding causes and death causes of Chinese white dolphin,a national first-class endangered animal,and to provide basic information and relevant suggestions for the long-term conservation of Chinese white dolphin.Through the analysis of the rescue information recorded by the administration of Chinese white dolphin reserve in the Pearl River Estuary from 2003 to the beginning of 2019,this paper concluded that the number of strandings of Chinese white dolphin in the year was on the rise,and the number of strandings of male Chinese white dolphin was higher than that of female Chinese white dolphin.The main causes of stranding of Chinese white dolphins were starvation and propeller.The main seasonal causes were disease and separation from the mother dolphin.