Text / Sisquoc River Steelhead Trout Population Survey

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Item Information.

Title
Sisquoc River Steelhead Trout Population Survey
Creator
Matt Stoecker
Stoecker Ecological
Date Created and/or Issued
2006
Contributing Institution
UC Riverside, Library, Water Resources Collections and Archives
Collection
Clearinghouse for Dam Removal Information (CDRI)
Rights Information
Copyrighted
Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user.
Description
Scope/Content: Abstract: The objective of this study was to document the presence of steelhead trout(Oncorhynchus mykiss irideus) in the Sisquoc River watershed with particular emphasis on documentation of any large, sea-run, adult steelhead that may have remained in the system following connectivity between the Santa Maria River and the ocean during the high winter flows of 2004/2005. Conducting snorkeling surveys for adult steelhead that may have elected to oversummer or were trapped in the watershed provided an important opportunity to document anadromy in the system and also to assess the population dynamics of juveniles in variable reaches of the watershed. In addition, a significant steelhead migration impediment under the Garey Bridge near Sisquoc was recently removed improving upstream steelhead migration conditions. The first scheduled revision to the Twitchell Dam Water Control Manual (WCM) since steelhead were listed as an endangered species is reportedly in progress and steelhead migration flow and recovery discussions should benefit from the data collected in this study.
Type
text
Form/Genre
digital copy
Identifier
ark:/86086/n2vq32cv
671
Subject
Fisheries and fish passage
Dams
Dam retirement
Place
Davy Brown Creek, CA
Manzana Creek, CA
Rattlesnake Creek, CA
Sisquoc River, CA
Twitchell Dam
United States

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