Factors Influencing the Settlement of California Halibut

by M. James Allen, MBC Applied Environmental Sciences, Costa Mesa, United States,
Sharon H. Kramer, MBC Applied Environmental Sciences, Costa Mesa, United States,

Document Type: Proceeding Paper

Part of: Coastal Zone '91


California halibut (Paralichthys californicus) is an important species to recreational and commercial fisheries of California. The species typically uses coastal bays and wetlands as nursery grounds but recent studies have also shown that it successfully settles and survives in particular areas of the nearshore coast. Surveys in selected coastal bays and nearshore coastal habitats of southern California have been conducted by a number of investigators from 1983 to 1990 to examine patterns of settlement and survival of this species, and to determine factors which influence its settlement. These factors include physical parameters (spawning stock size, advection, water quality, degree of protection from wave action, water depth, coastal processes, sediment type) and biological parameters (prey, competitors, predators). This paper reviews information on factors affecting settlement in California halibut. Better understanding of these factors will aid in assessing the importance of the coastal bays, wetlands, and the nearshore coast as nursery grounds for California halibut.

Subject Headings: Nearshore | Water quality | Parameters (statistics) | Coastal processes | Biological processes | Wetlands (coastal) | Fish management | Bays | California | United States

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