A variety of cetacean species inhabit the productive waters offshore of Washington State, USA. Although the general presence of many of these species has been documented in this region, our understanding of fine-scale habitat use is limited. Here, passive acoustic monitoring was used to investigate the spatial and temporal distributions of ten cetacean species at three locations offshore of Washington. Between 2004 and 2013, a total of 2845 days of recordings were collected from sites on the continental shelf and slope, and in a submarine canyon. Acoustic presence was higher for all species at sites farther offshore. Detections were highest during the fall and winter for blue (Balaenoptera musculus), fin (B. physalus), and humpback whales (Megaptera novaeangliae), likely related to reproductive behavior, while minke whales (B. acutorostrata) were only detected on two days. Odontocetes showed temporal separation, with sperm whale (Physeter macrocephalus) detections highest in spring, Risso’s (Grampus griseus) and Pacific white-sided dolphins (Lagenorhynchus obliquidens) highest in summer, and Stejneger’s beaked whales (Mesoplodon stejnegeri), Cuvier’s beaked whales (Ziphius cavirostris), and the BW37V signal type highest in winter or spring. There was interannual variation in detections for most mysticete species, which may be linked to oceanographic conditions: blue and fin whale detections increased during 2007 and 2008, and fin and humpback whale detections increased in 2011. These results inform our understanding of cetacean behavior and habitat use in this region and may aid in the development of conservation strategies suited to the dynamic conditions that drive cetacean distribution.

多种鲸类物种栖息在美国华盛顿州近海的生产水域。尽管该地区已记录了许多此类物种的普遍存在，但我们对精细栖息地利用的了解有限。在这里，被动声学监测用于调查华盛顿近海三个地点的十种鲸类物种的空间和时间分布。2004 年至 2013 年期间，共收集了 2845 天的记录，这些记录来自大陆架和斜坡以及海底峡谷。在离岸较远的地点，所有物种的声学存在较高。蓝色（Balaenoptera musculus）、鳍（B. physalus）和座头鲸（Megaptera novaeangliae）在秋季和冬季的检测量最高），可能与生殖行为有关，而小须鲸（B. acutorostrata）仅在两天内被发现。Odontocetes显示时间分离，与抹香鲸（Physeter鲷）最高检测春，Risso的（鲸灰色链霉菌）和太平洋斑纹海豚（斑纹海豚属obliquidens）夏季最高，而史氏氏喙鲸（Mesoplodon stejnegeri），居维叶的喙鲸（Ziphius鱼腥藻)，BW37V 信号类型在冬季或春季最高。大多数神秘鲸物种的检测存在年际变化，这可能与海洋条件有关：蓝鲸和长须鲸的检测在 2007 年和 2008 年有所增加，而长须鲸和座头鲸的检测在 2011 年有所增加。这些结果有助于我们了解鲸类动物的行为和栖息地在该地区使用，并可能有助于制定适合驱动鲸类分布的动态条件的保护策略。