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Data from: Baseline data collection on Cetaceans and Seabirds in the outer continental shelf and slope of northern California and Oregon to inform offshore wind energy development

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Oct 01, 2026 version files 15.68 KB

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Abstract

A key challenge for mitigating negative impact associated with human use of the ocean is to manage overlap with marine wildlife in space and time. Effective management of overlap depends on an understanding of distribution of species and populations at risk in space and time. Species distribution models (SDMs) are an increasingly powerful and effective analytic tool for quantifying and predicting distribution. These models combine species and environmental data into algorithms that can be used to predict species’ occurrence based on key static and dynamic environmental variables. This project creates SDMs and ensemble density surfaces from multiple, complementary data streams to produce distribution maps for seabirds and cetaceans in the Northern California Current (NCC). For humpback whales, the NCC is feeding habitat for individuals from breeding grounds representing three Distinct Population Segments (DPS): Hawaii, Mexico and Central America. Each DPS has a different recovery status under the U.S. Endangered Species Act; unlisted, threatened and endangered, respectively. DNA profiles generated from 66 biopsy samples collected in the NCC, along with reference DNA profiles, were used to assign individuals to DPS. This information further contextualized ensembled season-specific density maps produced for humpback whales.