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Data to support the cost analysis of crayfish chemical control in hatchery fish shipments

Dates

Publication Date
Start Date
2018-09-26
End Date
2021-05-01

Citation

Allert, A.L., Westrich, D.J., Whites, D.W., and Wildhaber, M.L. 2023, Survival, behavior, reproduction, morphometric measurements, and tissue analyses of crayfish, mussels, and fish from acute pesticide toxicity tests: U.S. Geological Survey data release, https://doi.org/10.5066/P9OEG5LZ.

Summary

In order to estimate the costs of chemical control of non-indigenous crayfish versus the cost of manual inspection of fish hatchery shipments a cost analysis was performed. The data includes ranking the likelihood of missing non-indigenous crayfish and effects on fish of handling during manual searches and the effects on fish during chemical exposure. The data also includes estimates of the time, staff, and salary requirements and cost of materials for each approach.

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Attached Files

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Assessment_CostAnalysis.txt 1.74 KB text/plain
Chemical_CostAnalysis.txt 3.4 KB text/plain
Handling_CostAnalysis.txt 1.96 KB text/plain

Purpose

Acute toxicity tests were conducted in support of research focused on developing a biosecurity protocol to mitigate impacts of alien non-indigenous crayfish at fish hatcheries. Documented impacts of crayfish introductions include habitat alteration, fishery collapse, extirpation of threatened and endangered and other native crayfishes, disease and parasite introduction, and economic damage. Data associated with laboratory studies were collected to determine whether chemical control for alien non-indigenous crayfish would be practical at fish hatcheries. Tests investigated whether pesticide formulations were lethal to crayfish without causing adverse effects to hatchery fish species. Research also investigated whether pesticides could be removed from treatment water within an hour of dosing which would then prevent the release of pesticides into receiving waters during fish stockings. Data will assist hatchery managers, state agencies, and regulatory agencies determine potential risk to nontarget organism and humans when considering chemical use permits and in the development of best management practices to control non-indigenous crayfish.

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