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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Testing and Refining the Assumptions of Put-and-Take Rainbow Trout Fisheries in Alberta  [2013]

Patterson, William F.; Sullivan, Michael G.;

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Stocking catchable-size trout to create sport fisheries is based on a simple conceptual model: stocking more fish creates better fisheries that attract more anglers. Organizations typically stock variable densities of fish (i.e., cost) and expect correlated responses in catch rate and angler effort (i.e., benefit). We tested the assumptions inherent in stocked rainbow trout fisheries in Alberta and found no correlation between these costs and benefits of stocking. Rather, stocking low or high densities of trout created low-density stocks that supported low-catch-rate fisheries, but attracted many anglers if catch rates exceeded 0.08 trout/angler-hr and lakes were close to anglers’ homes. We propose a fiscally responsible model of stocking (i.e., stock minimum numbers of fish to remain above an optimal catch rate at lakes selected to attract anglers) that allows managers to either increase stocking sites or reduce stocking costs while maintaining angler effort.
From the journal
Human dimensions of wildlife
ISSN : 1533-158X

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2014
Volume:
18
Issue:
5
Start Page:
340
End Page:
354
Publisher:
Routledge
All titles:
"Testing and Refining the Assumptions of Put-and-Take Rainbow Trout Fisheries in Alberta"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2014
Volume:
18
Issue:
5
Start Page:
340
End Page:
354
Publisher:
Routledge
All titles:
"Testing and Refining the Assumptions of Put-and-Take Rainbow Trout Fisheries in Alberta"@eng