Results 141 to 150 of about 9,065 (260)

Effect of fertilization in water quality and in zooplankton community in open plankton-culture ponds

open access: yesBioscience Journal, 2009
The effects of swine manure fertilization on the water quality of zooplankton-culture artificial in two ponds were measured a diel cycles in different months (October 1999, January and March 2000).
Lúcia Helena Sipauba Tavares   +2 more
doaj  

Zooplankton richness, abundance and biomass of two hypertrophic shallow lakes with different salinity [PDF]

open access: yes, 2012
The zooplankton of lakes is controlled by biological and physico-chemical parameters. Among the former, predation by fish can determine the replacement of large-sized species by small-sized ones and among the latter, salinity exerts negative effects on ...
Cabrera, Gabriela Cecilia   +3 more
core  

Über Rädertiere (Rotatoria) aus dem Lago do Macaco, einem Ufersee des mittleren Rio Trombetas, Amazonien [PDF]

open access: yes, 2012
Qualitative Planktonproben, die in den Jahren 1985 und 1986 in dem tropischen Lago do Macaco, einem Ufersee des Rio Trombetas, einem der aus dem Nordwesten kommenden Nebenflüsse des Amazonas, gezogen wurden, sind auf ihren Gehalt an Rotatorien untersucht
Koste, Walter
core  

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