Changes in the abundance of sea lions worldwide is a concern to fisheries and conservation groups, in part because fisheries are feared to threaten sea lions and sea lions are feared to threaten fisheries.
The September 2004 symposium, Sea Lions of the World, brought sea lion researchers together in Anchorage, Alaska. This proceedings book contributes to understanding why sea lion populations fluctuate, including Alaska's Steller sea lions. Interspecies comparisons shed light on why some populations decline while others increase, and insights are gained on whether trends in the abundance of sea lions are related to fishing activities through food dependencies or through conservation measures. Authors also discuss parasites, contaminants, nutrition, pup survival, foraging, wintering, historical fluctuations, and other topics.
評分
評分
評分
評分
本站所有內容均為互聯網搜索引擎提供的公開搜索信息,本站不存儲任何數據與內容,任何內容與數據均與本站無關,如有需要請聯繫相關搜索引擎包括但不限於百度,google,bing,sogou 等
© 2025 qciss.net All Rights Reserved. 小哈圖書下載中心 版权所有