This dataset contains data from the capture and recapture of over 1500 male California sea lions (Zalophus californianus) from Washington between 1989-2006. The data fields include capture data such as time, location, weight, length, and girth for each animal captured. The dataset also includes records of resights of each animal from records collected from observers from California to Vancouver Island, British Columbia, Canada. The dataset also contains information from opportunistic captures of Steller sea lions (Eumetopias jubatus) in the same region.

This database contains information on individual sea lions that were marked or handled from 1985-2018. Individuals were handled for various projects including vital rate, telemetry and health studies. Many of the animals were either flipper tagged or branded. Capture techniques vary including; hand-capture of pups, hoop netting and underwater captures of juveniles, dart-delivered sedation of adult females, and floating pen capture of sub-adult and adult males.

The purpose of this project was to obtain data that are pertinent to assessing aspects of the distribution and foraging ecology of pinnipeds inhabiting the California Current. The California Current Ecosystem Program has attached satellite instruments and/or archival time-depth recorders on pinnipeds inhabiting waters off Washington, Oregon, and California to examine their haulout and at-sea spatial distribution, diving behaviors, and movement patterns at varying temporal scales. We aim to integrate telemetry data with aspects of their physiology and diet to assess sex/age-related differences by conspecifics or intra-specific differences among seals, sea lions, or fur seals in the California Current. Locations are calculated and provided by the Argos satellite system (http://www.argos-system.org/). Additional software are required to decode these data. Data are, generally, in the same format as originally delivered from Argos/CLS America and no quality assurance or quality control measures have been implemented.

The dataset contains initial capture and marking data for California sea lion (Zalophus californianus) pups at San Miguel Island, California and subsequent resighting of the marked animals throughout the time series. The data are used in mark-recapture analysis to estimate survival rates.

The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) initiated and maintains census programs for California sea lions (Zalophus californianus) and northern fur seals (Callorhinus ursinus) at San Miguel and San Nicolas Islands, California. The program documents annual pup births, pup mortality, and temporal patterns in adult and juvenile presence at San Miguel Island. For both species, the database contains field data on the annual number of live pups and dead pups by location. At San Miguel Island, daily counts of adults, pups, and juveniles in a sample area are also available. The data are used to describe population trends and changes in land resource use among the species.

The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) initiated a long-term marking program of California sea lions (Zalophus californianus). This dataset contains initial capture and marking data for California sea lion pups at San Miguel Island, California and subsequent resighting of the marked animals throughout the time series. The data are used in mark-recapture analysis to estimate natality rates.

The migration and movement patterns of male California sea lions (Zalophus californianus) were investigated to determine the timing and distance of the migration. Adult male sea lions were instrumented with satellite-linked instruments in Puget Sound, Washington, before the southbound migration between 1995 and 2000. This dataset contains the ARGOS location data from the instrumented animals that subsequently was analyzed by the California Current Ecosystem Program (AFSC/NOAA).

Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for Californias wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (https://www.wildlife.ca.gov/Data/CWHR). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.

From 1986 to 1999, The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) collected fecal samples and stomachs of male California sea lions from Washington. Scat samples were collected primarily from haulout sites in Puget Sound and a few were collected along the northern-outer Washington coast. Stomach content samples were collected from dead/stranded California sea lions throughout Washington. The data contains prey identifications and analyses of samples including prey species composition, frequency of occurrence, and size of prey.

Vector datasets of CWHR range maps are one component of California Wildlife Habitat Relationships (CWHR), a comprehensive information system and predictive model for Californias wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education, and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution, and habitat relationships for wildlife species known to occur regularly in California. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. For more information about CWHR, visit the CWHR webpage (https://www.wildlife.ca.gov/Data/CWHR). The webpage provides links to download CWHR data and user documents such as a look up table of available range maps including species code, species name, and range map revision history; a full set of CWHR GIS data; .pdf files of each range map or species life history accounts; and a User Guide.