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  7. Estimates of Historical Surplus Production of Freshwater Fish Populations Across Minnesota, Wisconsin, and South Dakota from 1980-2021

Estimates of Historical Surplus Production of Freshwater Fish Populations Across Minnesota, Wisconsin, and South Dakota from 1980-2021

Dates

Publication Date
Start Date
1980
End Date
2021

Citation

Xu, L., 2024, Estimates of Historical Surplus Production of Freshwater Fish Populations Across Minnesota, Wisconsin, and South Dakota from 1980-2021: U.S. Geological Survey ScienceBase, https://doi.org/10.21429/ykfe-6t55.

Summary

A temperature-dependent surplus production model has been used to estimate the historical productivity of freshwater fish populations. The data utilized in this analysis includes: (1) an index of relative abundance; (2) fishery removals and subsidies from stocking programs; and (3) lake growing degree days. Surplus production represents the net change in population biomass in the absence of fishing, reflecting the interplay of population dynamics such as recruitment (gain), individual fish growth (gain), and natural mortality (loss).

Contacts

Point of Contact :
Luoliang Xu
Originator :
Luoliang Xu
Metadata Contact :
Climate Adpatation Science Centers
Distributor :
U.S. Geological Survey
Funding Agency :
Midwest CASC

Attached Files

Click on title to download individual files attached to this item.

surplus production metadata.xml
“Estimated Historical Surplus Production Metadata”
Original FGDC Metadata
View 		21.07 KB application/fgdc+xml
Estimated_surplus_production_dataset.csv
“Estimated Historical Surplus Production Dataset” 		1.34 MB text/csv

Purpose

Worldwide, many fish populations are impacted by both climate warming and fishing. Despite the difficulty in disentangling these factors' relative effects, this knowledge is vital to formulating effective strategies for local management. This study uses a temperature-dependent population dynamics model to simultaneously quantify the impact of lake warming and fishing on fish productivities in the Midwestern United States. The estimated historical surplus production is a byproduct of this analysis, which could be used for further analysis by other researchers.

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Communities

  • Midwest CASC
  • National and Regional Climate Adaptation Science Centers

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DOI https://www.sciencebase.gov/vocab/category/item/identifier 10.21429/ykfe-6t55

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