Plankton Management for Fish Culture Ponds

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1999-12-01
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Mischke, C.
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Morris, Joseph
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North Central Regional Aquaculture Center
The North Central Regional Aquaculture Center (NCRAC) is one of the five Regional Aquaculture Centers established by Congress that are administered by the U.S. Department of Agriculture's National Institute of Food and Agriculture (NIFA). NCRAC is an administrative unit that serves the twelve states in the North Central Region: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin.
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In the culture of larval fish of various species, e.g., walleye (Stizostedion vitreum), hybrid striped bass (Morone saxatilis X M. chrysops) and sunfish (Lepomis spp.), management of the zooplankton forage base is critical to successful transition of larvae to the fingerling stage. In addition, information regarding the relative status of plankton (zooplankton and phytoplankton) communities gives insight into water quality parameters and the possible success or failure of the culture season. The dynamic characteristics of zooplankton populations have led researchers to use particular fertilization techniques and speciesspecific zooplankton inoculations in culture ponds (Colura and Matlock 1983; Geiger 1983a; Farquhar 1984; Turner 1984; Geiger et al. 1985). The intent of these management techniques was to maintain high densities of desirable zooplankton species in culture ponds until fish were harvested or able to consume commercial feeds.

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This article is from NCRAC Technical Bulletin Series #114. Used with permission.

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Fri Jan 01 00:00:00 UTC 1999
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