Oregon Bay Clam Distribution, Abundance, Planting sites and Effects of Harvest, Annual Report July 1, 1976 to September 30, 1977

Identification Information

Citation

Originator: Gaumer, Thomas F.

Publish Date: 1977

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: We continued our studies of the distribution of bay clams in Oregon's estuaries. Maps showing survey areas, distribution of clams, substrate type and vegetation type are presented. Population estimates, age and size of clams were calculated for two areas of Yaquina Bay and for one area in Tillamook Bay. Gaper clams were the principal species found in each bay. In Yaquina Bay our surveys revealed a strong 1976 year class for gaper clams in June but by October, this age group was practically absent. The 1975 year class gapers remained the predominant age group in each bay. Five permits were issued for the commercial harvest of subtidal clams. No clams were harvested from the two permit areas in Yaquina Bay. Only one of three permit holders in Coos Bay harvested clams, taking 46,467 pounds (21.1 m.t.) of gaper clams during November and December, 1976. We continued to monitor growth of laboratory-produced clams planted in Netarts and Yaquina Bays. Population estimates showed 267 (5.2%) of the abalone planted in Whale Cove in 1967 still survive. They averaged 164 mm in size, an increase of 16.7 mm since 1975. We salvaged over 73,000 1976-year class gaper clams from Ore-Aqua's salmon production raceways and released them on Idaho Flat of Yaquina Bay. An attempt will be made to evaluate the released clams' contribution to the natural stocks.

Purpose:

Time Period of Content: July 1, 1976 to September 30, 1977

Geographic Extent: Oregon estuaries

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

Lineage-Source: National Marine Fisheries Service National Oceanic and Atmospheric Administration United States Department of Commerce Commercial Fisheries Research and Development Act Project Number 1-122-R Segment 1 Contract Number 04-G-20G-44038

Data Information

No data information was supplied.

Entity and Attribute Information

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

Bibliography Information

Field Name	Value
Biblio ID	8477
Year	1977
Publisher
Request Type	Annual Progress Report
Location	Salem HQ
Date Created	1977
Date Cataloged	8/3/05
Date Published	1977
Type	stp corner
Pages	9 pp
Volume
Status	2
Descriptor	Bay clam distribution; abundance; splanting sites; harvest; Oregon coast
Date Entered	2005-08-03 13:19:17
Location In Clackamas Library	Wildllife/marine life
Author	Thomas F Gaumer
Duplicates	0
Number Remaining After Requests
Presumed All Distributed
Back Room Duplicates	1
Author
Risk
Species
Disposition Of Requests	Tony D'Andrea: Requested, but no copies available
Disposition Of Requests	State Archive: Request filled

Is a physical copy maintained for reference at Headquarters? Unknown