Cetacean Abundance in the California Current Estimated from a 2008 Ship-Based Line-Transect Survey
Cetacean Abundance in the California Current Estimated from a 2008 Ship-Based Line-Transect Survey
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根据 2008 年船基线横断面调查估算的加利福尼亚洋流中的鲸类数量
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Barlow
中科院分区：
文献类型：
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作者：
J. Barlow
美国西海岸大多数鲸类动物的数量是根据2008年一项基于船只的调查收集的数据估计出来的。调查中使用了样线方法，分析基于Barlow和Forney（2007）在分析之前的西海岸调查中使用的多协变量样线方法。短喙普通海豚、长喙普通海豚和达尔氏鼠海豚是最丰富的小型鲸目动物，其丰度分别为~37万只、~ 6.2万只和~3万只。长须鲸和座头鲸是数量最多的大型鲸鱼，数量分别为~ 3000头和~ 1000头。总共估计了17种鲸类动物的丰度，以及几种无法确定为物种的鲸类动物。
The abundance of most cetaceans along the US West Coast was estimated from data collected on a 2008 ship-based survey. Line-transect methods were used on the survey, and analyses were based on the multiple-covariate line-transect approach used by Barlow and Forney (2007) in their analysis of previous West Coast Surveys. Shortbeaked common dolphins, long-beaked common dolphins and Dall’s porpoises were the most abundant small cetaceans with abundances of ~370,000, ~62,000 and ~30,000 (respectively). Fin whales and humpback whales were the most abundant large whales, with abundances of ~3,000 and ~1,000 (respectively). In total, abundances were estimated for 17 cetacean species plus several categories of cetaceans that could not be identified to species.