Recent Migrations of the Sacramento-San Joaquin River Striped Bass Population
- 1 July 1967
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 96 (3) , 327-342
- https://doi.org/10.1577/1548-8659(1967)96[327:rmotsj]2.0.co;2
Abstract
Migration patterns of striped bass (Roccus saxatilis) in the Sacramento‐San Joaquin River system, California, are defined by tag returns from 18,300 tagged fish and angler catches from 1958 through 1964. Larger adults migrated farther downstream than smaller ones, and most 3‐ and 4‐year‐old immature fish remain in the Bay Area during the spawning period. Fish tagged in the western and eastern Delta during the spring, in the western Delta during the fall, in the upper Sacramento River during the spring, and in San Pablo Bay during the fall all had similar migration patterns. The only general difference was each group had a distinctive migration to the Delta. Migrations into San Francisco Bay and the Pacific Ocean were much greater in the late 1950ˈs and early 1960ˈs than in the early 1950ˈs. Data on changes in the striped bass population and environment were insufficient to explain migration changes. Earlier conclusions regarding factors controlling seaward migration did not adequately explain migration variations between 1958 and 1964.This publication has 0 references indexed in Scilit: