| 珠江西部河口中华白海豚分布与环境因子的关系 |
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| 引用本文： | 王新星,陈涛,李敏,王雪辉,王跃中.珠江西部河口中华白海豚分布与环境因子的关系[J].生态学报,2018,38(3):934-944. |
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| 作者姓名： | 王新星 陈涛 李敏 王雪辉 王跃中 |
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| 作者单位： | 中国水产科学研究院南海水产研究所农业部南海渔业资源开发利用重点实验室农业部南海渔业资源环境科学观测实验站; |
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| 基金项目： | 农业部财政项目广东中华白海豚保护行动；中央级公益性科研院所基本科研业务费专项资金项目（2015TS06）；世界自然（香港）基金会资助项目；中国水产科学研究院基本科研业务费资助项目（2014C01XK01） |
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| 摘 要： | 2012年采用船基截线法在珠江口西部河口进行了中华白海豚(Sousa chinensis)调查,并同步对渔业资源和渔业环境要素进行了现场采样测定,以分析该水域中华白海豚空间分布与环境因子的关系。利用广义加性模型(GAM)分析了中华白海豚目击率与海况、水深、底层水温、盐度、pH值、溶解氧、游泳生物密度、捕食种密度和离岸距离等的关系。GAM模型对中华白海豚目击率分布的总偏差解释率为64.7%,游泳生物密度、水深、捕食种密度、离岸距离、底层水温等对中华白海豚的栖息地选择有较大的影响。模型分析结果显示:中华白海豚的活动与捕食种密度密切相关,但当捕食种密度达到一定程度时对海豚目击率的影响减弱,推测可能与食物较多时海豚逗留捕食时间减少有关;中华白海豚较为喜欢的水深在10m左右,这一模拟结果与以前的统计结果基本一致;中华白海豚对底层水温似乎有一定的选择性,当底层水温大于19.5℃时目击率明显下降,推测底层水温可能影响了捕食种鱼类的分布,进而影响海豚的活动;离岸距离3km范围内是中华白海豚较为喜欢的水域,因此对这一水域范围应给予重点保护管理。
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| 关 键 词： | 中华白海豚 珠江西部河口 保护 目击率 广义加性模型 |
| 收稿时间： | 2016/12/22 0:00:00 |
Relationships between environmental factors and the distribution of Indo-Pacific humpback dolphins (Sousa chinensis) in the western Pearl River Estuary, China |
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| WANG Xinxing,CHEN Tao,LI Min,WANG Xuehui and WANG Yuezhong.Relationships between environmental factors and the distribution of Indo-Pacific humpback dolphins (Sousa chinensis) in the western Pearl River Estuary, China[J].Acta Ecologica Sinica,2018,38(3):934-944. |
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| Authors: | WANG Xinxing CHEN Tao LI Min WANG Xuehui and WANG Yuezhong |
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| Institution: | Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture;Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture;South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China,Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture;Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture;South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China,Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture;Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture;South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China,Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture;Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture;South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China and Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture;Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments, Ministry of Agriculture;South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China |
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| Abstract: | |
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| Keywords: | Humpback dolphin(Sousa chinensis) Pearl River Estuary China conservation encounter rates generalized additive model |
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