Publications by authors named "Geung-Hwan La"
The objective of our study was to investigate sexual reproduction of Daphnia magna associated with mating behaviors and hatching rates, according to different algal food sources. Since a diatom is known to contain more abundant long-chain poly unsaturated fatty acids (PUFAs), we hypothesized that the diatom-consuming D. magna would exhibit more successful reproduction rates.
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- High predation risk and low food availability trigger sexual reproduction in Daphnia, influencing their mating behavior.
- Males show increased mating frequency and decreased fighting when predation risk is present, while low food reduces male aggression.
- Mating in Daphnia involves strategic assessment of environmental factors, with males preferring to mate with sexual females and demonstrating non-random mating and fighting behaviors.
In this study, we examined the effects of two phytoplankton species, Chlorella vulgaris and Stephanodiscus hantzschii, on growth of the zooplankton Daphnia magna. Our experimental approach utilized stable isotopes to determine the contribution of food algae to offspring characteristics and to the size of adult D. magna individuals.
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