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Last modified
7/14/2009 5:02:36 PM
Creation date
5/17/2009 11:27:07 PM
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UCREFRP
UCREFRP Catalog Number
9483
Author
Mitchell, M. J.
Title
Impact of the Procedures for Stocking Nonnative Fish Species in the Upper Colorado River Basin on Private Landowners and the Commercial Aquaculture Industry.
USFW Year
no dat
USFW - Doc Type
Longmont.
Copyright Material
NO
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<br />Section n. <br />Impacts of the Procedures for the stocking of non-native fish in the upper Colorado River <br />basin on private landowners and the commercial aquaculture industry <br /> <br />Introduction <br /> <br />Recreational sport fishing is a 1 billion dollar per year industry in the state of Colorado as <br />estimated by the Colorado Division of Wildlife (E. Kochman, personal communication). The <br />supply of aquaculture fish to the waters of Colorado is acknowledged by most wildlife <br />professionals to be responsible for the support of angler use that results in the majority of <br />expenditures that comprise this economy. The private sector aquaculture industry in Colorado is <br />estimated by state and federal agriculture agency surveys (completed annually) to produce and <br />distribute the equivalent of more than a third of the live fish stocked into the waters of Colorado <br />annually. Aquaculture industry advocacy groups, such as the National Aquaculture Association, <br />have credited the private sector aquaculture industry with support of a third of Colorado's <br />tourism based angling economy worth $300 million dollars per year. The upper Colorado River <br />basin supports a substantial portion of this economy through the stocking and management of <br />many nonnative species of sportfish. Nonnative fish species such as mosquitofish, white amur, <br />and fathead minnows provide valuable biological functions as pest control agents and bioasssay <br />organisms. The policy for the stocking of non-native fish in the upper Colorado River basin is <br />required as part of the recovery implementation plan for endangered fishes. This policy when <br />authorized will reduce the number of species and the total number of fishes stocked for <br />recreational and aquatic management use in the upper basin. The majority of nonnative fish being <br />stocked for these functional uses are supplied by the private aquaculture industry for use by <br />private landowners. This portion of the evaluation is designed to identify impacts and recommend <br />mitigation as it pertains to the private sector. <br /> <br />\ <br /> <br />Methods <br /> <br />The identification of impacts of the stocking procedures to private landowners and the <br />commercial aquaculture industry could only be completed through active discussions with those <br />that participate in the industry. The first step of this procedure was undertaken by the Colorado <br />Department of Agriculture in 1994 when it completed a survey of instate and out of state <br />warmwater fish suppliers. These suppliers were sent a questionnaire that requested information <br />on the species and number of fish distributed on the western slope of Colorado in 1993. <br />Distribution was broken down by county to allow identification of specific areas of commerce <br />activity. The results of this questionnaire were used in the compilation of impacts and mitigation <br />recommendations for this document. <br /> <br />3 <br />
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