Skip to main content
USGS - science for a changing world

At-Sea Distribution and Abundance of Seabirds and Marine Mammals off Southern California Summarized Spatial Data Set: 1999-2002


Start Date
End Date


From 1999-2002, the U.S. Geological Survey (USGS) and Humboldt State University (HSU) worked with the Minerals Management Service to conduct a multi-year study that quantified the at-sea distribution of seabirds and marine mammals. The aerial at-sea survey team flew over 55,000 km and counted 485,000 seabirds (67 species) and 64,000 marine mammals (19 species). The California Department of Fish and Game (CDFG) and U. S. Navy also provided significant matching funds. The study provided resource managers with updated information on distribution and abundance patterns and compared it to information from the late 1970's to early 1980s (Hunt et al. 1979, Briggs et al.1987). Other USGS-HSU studies in 1999-2003 published elsewhere include: [...]


(other) :
Josh Adams

Attached Files

Click on title to download individual files attached to this item.

Screenshot of Previous Spatial Database.JPG thumbnail 156.12 KB


The authors of these data require that data users contact them regarding intended use and to assist with understanding limitations and interpretation. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Preview Image


  • USGS Western Ecological Research Center


Data source
Input directly

Item Actions

View Item as ...

Save Item as ...

View Item...