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作 者 ：杨光,周开亚,徐信荣

期 刊 ：生态学报 2000年 20卷 6期 页码：1002~1008

关键词：瓶鼻海豚；小型鲸类；种群；误捕；台湾海峡；

Keywords:bottlenose dolphins, small cetaceans, population, incidental catches, Taiwan StraitD,

摘 要 ：台湾海峡厦门东山水域瓶鼻海豚 ( Tursiopsaduncus)的种群密度约为 0 .0 4 36± 0 .0 2 86头 /km2 ,该水域南部瓶鼻海豚的发现率高于中部和北部。问卷调查和随船出海调查表明围网作业发现和误捕小型鲸类的频率要高于拖网 ,同时拖网又高于刺网。调查期间从东山港记录到的误捕致死的 2 0头小型鲸类中 ,6头 (占 30 % )为瓶鼻海豚 ,分别由拖网和围网捕获。需要开展对当地渔民的宣传教育和加强台湾海峡瓶鼻海豚等小型鲸类的种群生物学和保护生物学的研究。

Abstract:The population density of bottlenose dolphins (aduncus)in Xiamen Dongshan water of the Taiwan Strait is 0.0436±0.0286 individuals/km 2.The sighting frequency of bottlenose dolphins in the southern part of the water is higher than those in the middle and northern parts of the water.Questionnaire survey and on board observation indicated that the sighting rate and incidental catch rate of small cetaceans of purse net is higher than that of trawl net,whereas that of trawl net is higher than that of gillnets...

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