Pacific White-sided Dolphin Summer/Fall Habitat-based Density, California Current

Mar 1, 2022 (Last modified Mar 10, 2022)
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Description:
Pacific White-sided (Lagenorhynchus obliquidens) habitat-based density estimates in the California Current Ecosystem.

Habitat-based density models were developed for 14 species and one guild (Mesoplodonts and Cuvier’s beaked whale) using 92,214 km of on-effort survey data collected between 1991 and 2018 within the CCE study area.

To generate average density surfaces, predictions were made on daily grids encompassing the 1996-2018 surveys (late June – early December). Models thus provide “multi-year average density surfaces” representative of the summer/fall period.

In these maps, uncertainty (expressed as CVs) account for environmental variability during the 1996-2018 survey period.
Data Provided By:
Elizabeth A. Becker
Content date:
1991-2018
Citation:
Elizabeth A. Becker, Karin A. Forney, David L. Miller, Paul C. Fiedler, Jay Barlow, and Jeff E. Moore. 2020. Habitat-based density estimates for cetaceans in the California Current Ecosystem based on 1991-2018 survey data, U.S. Department of Commerce, NOAA Technical Memorandum NMFS-SWFSC-638
Spatial Resolution:
10476.5 (Meter)
Contact Organization:
Elizabeth A. Becker, Ph.D.
Contractor, Marine Mammal & Turtle Division
Southwest Fisheries Science Center, NMFS, NOAA
c/o MLML Norte
7544 Sandholdt Rd
Moss Landing, CA 95039 USA
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Tags:
pacific white sided dolphin, marine, marine mammal, california current, sdm, density, ocean, offshore wind energy, cetacean
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