An Evaluation of Fishery Effects on the Population Structure and Recruitment Levels of Ocean Shrimp (Pandalus jordani) Through 2015, Information Report 2016-03

Identification Information

Citation

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

Publish Date: 2016

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: Understanding how fishing and environmental variation interact to alter the size, age and sex composition (population structure) of an exploited stock is a key goal of fisheries science. The population structure of a stock can be important for a variety of reasons. Larger fish or invertebrates are frequently more commercially valuable than smaller individuals. Harvesting, especially size-selective harvesting, can greatly reduce the average size or age of individuals in a population (Fenberg and Roy 2008). Age truncation within a population can have the effect of making it more sensitive to environmental variation (Rouyer et al. 2011). It has also been argued that the loss of older breeders, and the higher quality larvae they produce, can adversely affect stock productivity in some species (Sogard et al. 2008).

Purpose:

Time Period of Content: 1966-2015

Geographic Extent: Oregon

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

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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