Hatchery Coho Marine Survival

Identification Information

Citation

Originator: Lewis, Mark

Publish Date: March 8, 2004

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 excel spreadsheet presents 3 methods of calculating a general hatchery coho marine survival rate (smolt release to adult caught or returned to freshwater). Two methods are specific to hatchery coho released in the Oregon Coast Coho ESU, and the third is for hatchery coho released in the Oregon Production Index (OPI) area. The OPI area includes the Pacific Ocean from Leadbetter Point Washington to the U.S./Mexico border, as well as the river basins that enter this section of ocean. All three methods give generally similar results and all have strengths and weaknesses. Although all three methods are presented, ODFW staff felt that the OPI method had the fewest weaknesses and this is the method that should be used.

Purpose: Estimate an ESU wide marine survival rate for hatchery coho.

Time Period of Content: Adult return years 1984 through 2003

Geographic Extent: Oregon Production Index area

Status: Draft

Use Constraints:

Format: Microsoft Excel 2000 Spreadsheet

Data Quality Information

Lineage-Source: Pacific Marine Fisheries Commision report "Preseason Report I, Stock Abundance Analysis for 2003 Ocean Salmon Fisheries"

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