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Studies on development cycle of Peridinium cinctum f westii 1013
An operationalfunctional classification of fishery management
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abundant algae amount animals appear aquatic average biomass bottom calculated carbon cells changes chemical collected compared concentrations culture decrease density depth determined Discussion dissolved distribution ecology effect experiments factors fauna fish growth higher important increase indicate June lake layers leaves less light limiting Limnol limnology lower major material maximum mean measured meters method mg/l months natural nitrogen numbers nutrient observed obtained occur organic oxygen period phosphate photosynthetic phytoplankton plankton plants population possible present primary probably productivity quantity range ratio recorded References region relation relatively reservoir River saline samples seasonal sediments shallow shore shown similar species stations stream summer surface taken temperature upper values variation vertical weight winter zooplankton