Fecundity of the Ocean Shrimp (Pandalus jordani)

Identification Information

Citation

Originator: Hannah,R. W., S. A. Jones, and M. R. Long

Publish Date: 1995

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: Fecundity of the ocean shrimp Pandalus jordani was analyzed from eight samples from the years 1989-1993 and compared with historical fecundity data for _this species. Linear regressions of loge fecundity on loge carapace length from the 1989-I 993 samples had significantly different slopes. Interannual variation in fecundity exceeded that found between areas within the same year, making it difficult to determine if the observed variation in fecundity resulted from geographic location or interannual variation. No consistent differences between the length-fecundity relationships of the recent and historical samples were demonstrated. A graphical comparison of fecundity with sea level height data provided preliminary evidence that sea bottom temperature may be influencing shrimp fecundity. Egg production, estimated from the length-fecundity relationships and from size and sex composition data from the commercial catch, showed wide variation between years and areas. Variation in sex composition explained roughly 62% of the variation in egg production. Egg production estimates, derived from a pooled length-fecundity relationship, deviated from estimates based on the individual samples by ± 13-18%. These deviations were considered to be a minor source of added variance when compared with other sources of variation in the total egg production of ocean shrimp.

Purpose:

Time Period of Content: 1989-1993

Geographic Extent: Not Available

Status: Final

Use Constraints:

Format: PDF file

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No data information was supplied.

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Attributes Description: Not yet described

Bibliography Information

Field Name	Value
Biblio ID	8511
Year	1995
Publisher
Request Type	Reprint
Location	Salem HQ
Date Created	1995
Date Cataloged	8/3/05
Date Published	1995
Type	stp corner
Pages	pp2098-2107
Volume
Status	2
Descriptor	ocean shrimp fecundity
Date Entered	2005-08-03 16:12:02
Location In Clackamas Library	Wildllife/marine life
Author	Robert W Hannah; Stephen A Jones; Michele R Long
Duplicates	0
Number Remaining After Requests	1
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Is a physical copy maintained for reference at Headquarters? Yes