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https://doi.org/10.1007/978-3-030-80678-1_2

has been cited by the following article:

• TITLE: Evaluating a Three-Fold Continuum of Fry Stocking Density for Rearing Walleye in Lined Ponds

  AUTHORS: Matthew J. Ward, Chad R. Haabala

  KEYWORDS: Walleye Culture, Lined Ponds, Rearing Efficiencies, Pond Stocking Density

  JOURNAL NAME: Open Journal of Animal Sciences, Vol.12 No.2, March 21, 2022

  ABSTRACT: Fry stocking density can affect harvest metrics for fingerling walleye (Stizostedion vitreum) reared in drainable ponds, but few studies have examined these relationships with the use of elevated walleye fry stocking densities in lined ponds. Correlation and regression analyses were used to assess how a three-fold change in walleye fry stocking density (234,375 to 703,125 per hectare) relates to harvest metrics and length of the culture period, as well as the tradeoff experienced between walleye size (grams) and harvest density in 0.32-hectare lined ponds over a nine-year period at Blue Dog State Fish Hatchery, South Dakota. As fry stocking density increased, so did harvest metrics for both number (r = 0.85, P P -0.66, P The linear relationship between harvest density and yield was highly correlated (r = 0.95, P P 0.01) and exhibited a decreasing curvilinear relationship such that continued increases in harvest density resulted in smaller reductions in fish size. Increasing fry stocking density from 234,375 to 703,125 per hectare in lined ponds coincided with increased rearing efficiencies for number and yield, as well as a reduced culture period. Minimal reduction in walleye size occurred once harvest density exceeded 300,000 per hectare.