Pacific oyster disease and mortality studies in California

Katkansky, Stanley C. and Warner, Ronald W. (1974) Pacific oyster disease and mortality studies in California. Long Beach, CA, California Department of Fish and Game, (Marine Resources Technical Report, 25)

PDF (The document's language is English .) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (12MB) | Preview


Investigation of Pacific oyster mortalities was carried out over a six-year period in major northern and central California oyster rearing areas. Effort was directed toward defining areas of high oyster mortality and determining possible etiologies of observed losses through monthly monitoring and sampling of experimental and commercial oyster populations in Morro Bay, Elkhorn Slough, Drakes Estero, Tomales Bay and Humboldt Bay. Hydrographic data was collected in all areas and a two year study of phytoplankton and water quality in Humboldt Bay was initiated to observe relationships with oyster mortality patterns. Research undertaken to develop methods to alleviate losses among Pacific oyster populations included an oyster seed source study, investigation of optimal oyster culturing techniques and preliminary efforts to develop a mortality resistant strain of oysters in Humboldt Bay. The cause of mortality among Pacific oyster populations in Humboldt Bay remains uncertain but a bacterial etiology correlated with elevated water temperatures is suspected. The best method of circumvention of losses appears to be the culturing of "domestic" seed sources on racks. (55pp.)

Item Type: Monograph or Serial Issue
Title: Pacific oyster disease and mortality studies in California
Personal Creator/Author:
Katkansky, Stanley C.
Warner, Ronald W.
Series Name: Marine Resources Technical Report
Number: 25
Date: 1974
Publisher: California Department of Fish and Game
Place of Publication: Long Beach, CA
Issuing Agency: California Department of Fish and Game
Uncontrolled Keywords: Pacific oyster; Crassostrea gigas; California
Subjects: Management
Item ID: 678
Depositing User: Joan Parker
Date Deposited: 20 Feb 2008 23:15
Last Modified: 29 Sep 2011 21:42

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...