Pinniped Predation on Adult Salmonids in the Alsea Estuary, Oregon, 2002 Progress Report

Identification Information

Citation

Originator: Wright, Bryan E., Robin F. Brown, Susan D. Riemer, and Aicha M. Ougzin

Publish Date: 2003

Online Link: None

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Cedric Cooney

Job Position: Natural Resources Data and Systems Manager

Telephone: 503-947-6094

E-Mail Address: cedric.x.cooney@odfw.oregon.gov

Description

Abstract: This report summarizes the fifth year of research conducted by the Oregon Department of Fish and Wildlife’s Marine Mammal Program on pinniped predation on salmonids at the Alsea Estuary. Background and motivation for this research is described in Riemer et al. (2001). Our objective in 2002 was to complete our assessment of whether pinnipeds posed a threat to the recovery of coho salmon (Oncorhynchus kisutch) in the basin. We carried out this assessment using three approaches: (1) predation observations to estimate total diurnal adult salmonid predation by Pacific harbor seals (Phoca vitulina richardsi); (2) marking and tracking of harbor seals to characterize their movements, habitat use and foraging behavior; and (3) collection of harbor seal fecal (scat) samples to describe their diet.

Purpose:

Time Period of Content: 2002

Geographic Extent: Alsea Estuary, Oregon

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

Lineage-Source: In partial fulfillment of requirement for: PSMFC/ODFW Subcontract No. 02-14 NOAA Grant No. NA17FX1603

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Field attribute information is available in the attached file(s).

Is a physical copy maintained for reference at Headquarters? Unknown