Considerations on the biochemical composition of some freshwater zooplankton species.

Linking biochemical and elemental composition in freshwater and marine crustacean zooplankton

The major groups of biochemical compounds (proteins, lipids, carbohydrates, chitin, nucleic acids and nucleotides) have a distinct functional role and, therefore, incorporation of biochemical interpretations into stoichiometric analysis would improve our current understanding of species life histories and their interactions. A review of the stoichiometric composition of the main biochemical com...

Adverse Effects of Herbicides on Freshwater Zooplankton

3 Freshwater Zooplankton

Some Considerations on Climatic Geomorphology of the Romanian Territory

The main issues about relation between climate and relief in the Romanian geomorphological literature follow three directions of research: the description of Pleistocene glacial and Pleistocene-Holocene periglacial landforms in the Carpathians; the direct analysis of climate?s role in landform development; the integration of separate works and findings in a synthetic morphodynamic system applic...

The Impact of Zooplankton Grazing on Phytoplankton Species Composition and Biomass in Lake Champlain (USA-Canada)

Rates of grazing on phytoplankton by macrozooplankton (cladocerans and copepods > 220 μm in length) and microzooplankton (animals < 220 μm, mostly rotifers and nauplii) were determined for Lake Champlain on three occasions using a modified version of the Lehman-Sandgren method. Gradients in grazer density were created in fertilized cubitainers incubated in situ, and clearance rates on specific ...