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Showing 1 to 6 of 6 for “"microcrustaceans"”.
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Food Habits of Larval Ringed Salamanders, Ambystoma Annulatum
… of organisms. The major food items consisted of microcrustaceans, nematodes, and dipteran larvae. The diet changed both with development and season. Temporal shifts in the diet were probably affected most by changes in prey availability. The larvae fed mostly on plankton and added benthos to …
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The Effects of Odonates on a Littoral Prey Community
… vegetation and consume aquatic insects and microcrustaceans. To monitor the effects of these odonate predators on community dynamics, a 2X2 factorial in situ enclosure experiment was set up and monitored over an eight-week period. Twelve enclosures were placed in a littoral area of MIllers's …
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Food Habits of Black Crappies, White Crappies, Yellow Perch and White Suckers in a Small Impoundment in Northeastern South Dakota
… samples while fish were dominant in 25 percent. Microcrustaceans were the major food item in 75 percent of white suckers with detritus the dominant item in 25 percent. Young-of-the-year fish fed totally on zooplankton with the exception of largemouth bass which occasionally took aquatic insects. …
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Food Habits of Young-of-the-Year Fishes in Abbey Pond, South Dakota
… by yellow perch indicated a progression from microcrustaceans to aquatic insects. Young-of-the-year yellow perch had negative electivity indices for Daphmia galeata and D. ambigua and, with one exception, positive indices for Chydorus sp. Larval yellow perch fed almost exclusively on …
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Zooplankton Dynamics in Wastewater Treatment High Rate Algal Ponds and development of effective control methods
… continuous concentration of ~180 mg/L killed all microcrustaceans and rotifers present. As biocontrol agents, M. tenuicornis at ~2,000 individuals/L reduced average rotifer densities by 90%, and H. incongruens at ~1,000 individuals/L removed all rotifers. Mechanical filtration using 300 µm and 500 …
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Zooplankton in Flowing Waters
The zooplankton community structure within a river is governed by a variety of physical, chemical, and environmental features. The current study assessed the role of flow in characterizing the microcrustacean zooplankton community of the Missouri River. I also designed an artificial flow chamber …