SWFSC Marine Mammal Abundance Data for Input into LMRIS
Abstract
We estimated meso-scale density and abundance of cetaceans in the eastern Pacific Ocean during the summer and fall seasons. The study area encompasses over 25 million sq km, ranging from the tip of the Olympic Peninsula to the north, the coast of Peru to the south, and the Hawaiian archipelago to the west. Cetacean sighting data were obtained from nine research vessel surveys conducted between 1986 and 1996. We used line-transect methods to analyze the data, relying on published estimates of the line-transect parameters f(0) and g(0). When data were adequate, we stratified geographically by 5-degree squares of latitude and longitude. Our results illustrate clear patterns in cetacean distribution and abundance that differed for virtually every species.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 14, 2002
- Accession Number
- ADA399279
Entities
People
- Jay Barlow
Organizations
- Scripps Institution of Oceanography