Kerrie Pipal

• University of California, Santa Cruz

Evaluation of population genetic structure and variation is an important part of planning for the recovery and management of protected species. Data from 18 polymorphic microsatellite DNA markers were used to analyze the phylogeographic structure of protected Coho Salmon Oncorhynchus kisutch from populations throughout California. Fish from 30 loca...

Estimating the escapement of small populations of steelhead Oncorhynchus mykiss (ocean-migrating rainbow trout) is challenging and requires innovative methods. Difficulties arise from rare and episodic occurrence of individuals, high turbidity levels during migration, and the need to minimize jeopardy to the fish, which have led to a lack of popula...

Steelhead (Oncorhynchus mykiss) in central and southern California are listed as Threatened and Endangered under the Endangered Species Act. Obtaining escapement estimates is critical for measuring progress of recovery planning. However, monitoring these fish presents difficult challenges since their abundances are so low that a complete census of...

Monitoring trends in abundance of Endangered Species Act (ESA) listed adult steelhead (Oncorhynchus mykiss) is essential to assessing their viability. However, in central and southern California (the southern extent of their range), monitoring is difficult due to the low abundance and patchy distribution of adults. The only successful method has be...

Steelhead, Oncorhynchus mykiss, are currently listed under the United States Endangered Species Act (ESA) in central and southern California. In most of this region, steelhead are considered threatened, but the Southern California Distinct Population Segment (DPS), comprising populations in Santa Barbara County and southward is listed as endangered...

Thesis (M.S.)--Humboldt State University, 2003. Includes bibliographical references (leaves 65-69).