Results 91 to 100 of about 9,122 (188)
Inheritance in parthenogenesis and in sexual reproduction in a cladoceran.
For some years we have been making studies with Cladocera on the occurrence of mutations and their inheritance in parthenogenesis. Four mutant characters have been studied in Daphnia longispina. The inheritance is complete, since every parthenogenetic young from a mutant individual genetically possesses the mutant character (except, of course, for the ...
A. M. Banta, K. G. Snider, T. R. Wood
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This global meta‐analysis across 132 marine species found that ocean warming decreases nutritional quality by reducing polyunsaturated fatty acids, including the health‐critical omega‐3 fatty acids EPA and DHA. These changes lead to declines in omega‐3: omega‐6 ratios of up to 53%, and increases in saturated FAs of up to 21%, with shifts strongest in ...
Bethany Rose Dawson +4 more
wiley +1 more source
The accumulation of lipid reserves was investigated in two common cladoceran species typical of neotropical freshwaters. Experiments were performed in order to measure differential accumulation of lipid reserves in response to two algal diets, S ...
C. F. MACEDO, R. M. PINTO-CORLHO
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We examine the role of local environmental and spatial factors in explaining variation in the composition of cladoceran assemblages from surface sediments within a set of 50 lakes spanning a broad southwest to northeast transect across the central ...
Jon N. Sweetman, K. Rühland, J. Smol
semanticscholar +1 more source
ABSTRACT Understanding long‐term phytoplankton community dynamics is essential for assessing ecological resilience and informing lake management under global change. However, centennial‐scale patterns of phytoplankton dynamics remain poorly resolved due to the limited taxonomic resolution of traditional fossil‐based paleoecological approaches.
Yu Zhao +10 more
wiley +1 more source
An overview of Cladoceran studies conducted in mine water impacted lakes
Mine-fed waters have been rigorously studied, but most of the ecological research on mine water has been conducted in riverine systems. Lakes, however, are known to recover from pollution more slowly than riverine systems and, thus, the impacts of mine ...
Jaakko Johannes Leppänen
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Zooplankton biomass of reservoirs in different trophic conditions in the State of São Paulo, Brazil
This paper reports on a study involving an estimate of the biomass of rotifers, cladocerans, and cyclopoid and calanoid copepods found in reservoirs in different trophic conditions, comparing and relating numerical density data and pointing out ...
S. Sendacz, S. Caleffi, J. Santos-Soares
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The focus of this study is to investigate if microcrustaceans undergo diel horizontal migration (DHM) in a tropical shallow lake on a yearly basis and analyse the adaptive value regarding predation.
MS. Arcifa +3 more
doaj
The accumulation of lipid reserves was investigated in two common cladoceran species typical of neotropical freshwaters. Experiments were performed in order to measure differential accumulation of lipid reserves in response to two algal diets, S ...
MACEDO C. F., PINTO-CORLHO R. M.
doaj
Cladoceran assemblage in a mesotrophic reservoir
Cladoceran assemblage patterns were investigated in a meso-eulrophic reservoir from January 2000 till December 2002. Trends of environmental factors (water temperature, conductivity, pH, and nutrient concentrations), as well as of biotic factors (availability of potentially edible phytoplankton and densities of herbivorous and carnivorous copepods ...
Geraldes, Ana Maria +1 more
openaire +1 more source

