Chemical Protection against X-radiation Death in Primates: a Preliminary Report

A review of potential methods for zooplankton control in wastewater treatment High Rate Algal Ponds and algal production raceways

“…However, rotifers have higher growth and reproduction rates, and can quickly reach large population densities that consume a greater amount of algal biomass [38]. The need for zooplankton management in large and open algal cultures is clearly recognized, both for efficient and consistent WW nutrient removal, as well as algal productivity [39,40]. Furthermore, zooplankton grazing of microalgae is a primary reason for the unpredictability of HRAP performance that makes effective management a challenge [41].…”

The Importance of Trophic-Level Interactions to the Abundance and Species Composition of Algae in Lakes

“…In the reservoir studied by Shane, for example, Synedra became 100 times as abundant as it had been during the four previous years and was far more abundant in the contaminated reservoir than in those uncontaminated by the DDT. There is even an instance where pesticides have been used to control zooplankters in large cultures of algae grown to feed marine mollusks (Loosanoff et a!., 1957).…”

A Simple Method for the Mass Culture of Marine Algae

“…Other investigations into the mass culture of marine algae have depended on natural seawater, both in open tanks and in closed controlled systems (Loosanoff 1951;Raymont and Adams 1958;Wisely and Purday 1961;Davis and Ukeles 1961;Ansell et al 1963). Although fertilized natural seawater produced a good crop of phytoplankton, the inoculated culture was sometimes replaced rapidly by other organisms introduced with the seawater, such as motile and nonmotile chlorophytes, colorless flagellates, ciliates or other zooplankters (Loosanoff, Hanks, and Ganaros 1957;Ansell et al 1963 The growth response of the following four species was followed during the summer: DunaZieZZa euchZora4, ChZorella sp.…”

“…Although fertilized natural seawater produced a good crop of phytoplankton, the inoculated culture was sometimes replaced rapidly by other organisms introduced with the seawater, such as motile and nonmotile chlorophytes, colorless flagellates, ciliates or other zooplankters (Loosanoff, Hanks, and Ganaros 1957;Ansell et al 1963 The growth response of the following four species was followed during the summer: DunaZieZZa euchZora4, ChZorella sp. (580), Dicrateria sp., and Monochrysis Zutheri.…”