The Oregon Ocean Shrimp Fishery: 1990-1995, Information Reports 98-1

Identification Information

Citation

Originator: Jones, Stephen A. and Robert W. Hannah

Publish Date: January 1998

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: In 1981, the Pacific Fishery Management Council (PFMC) produced a tri-state ocean shrimp management plan that identified five biological points of concern for evaluating ocean shrimp stocks (PFMC 1981). The five indicators of over exploitation are; 1. Long-term (3 years) statistically significant increases in average count-per pound(count) and/ or increase in the incidence of high counts coupled with equal or increasing fishing effort. 2. Long-term decreasing average age of females and/ or increasing numbers of primary females. 3. Long-term trend toward decreasing annual catches with equal or increased effort. 4. Long-term increase in the extent of barren or void areas of formerly productive fishing grounds. 5. Indication, through sampling, of two year-class failures in a three year period. Jones and Hannah (1992) analyzed fishery and biological data from 1985-89. They concluded that Oregon ocean shrimp stocks had experienced record high exploitation levels during this period, with catches dominated by age-1 shrimp. They suggested that future annual harvests could be highly variable and vulnerable to the effects of year class failure due to this dependence on age-1 shrimp. The primary objective of this report is to analyze fishery and biological data from the 1990-95 trawl fishery for ocean shrimp and to continue our efforts to evaluate the evidence of potential over-exploitation as specified in the tri-state management plan. We documented trends in the fishery and compared them with those prior to 1990. Some California, Washington and Alaska information is included to add a regional perspective.

Purpose:

Time Period of Content:

Geographic Extent: Oregon Coast

Status: Final

Use Constraints:

Format: PDF File

Data Quality Information

Lineage-Source:

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Not yet described

Bibliography Information

Field Name	Value
Biblio ID	7359 (or 5668, deleted)
Year	1998
Publisher
Request Type	Information & Education
Location	Salem HQ
Date Created	Jan 1998
Date Cataloged	6/22/05
Date Published	1998
Type	info repo
Pages	25 pp
Volume	98-1
Status	2
Descriptor	shrimp; Oregon ocean
Date Entered	2005-06-22 14:32:13
Location In Clackamas Library	S wall, yellow info reports 2nd row
Author	Stephen A Jones; Robert W Hannah
Duplicates	0
Number Remaining After Requests	2
Presumed All Distributed
Back Room Duplicates
Author	R.W. Hannah; S.A. Jones
Risk
Species
Disposition Of Requests	Jean McCrae - 2: Request filled
Disposition Of Requests	StreamNet Library: Request filled

Is a physical copy maintained for reference at Headquarters? Yes