Zooplankton transfer ecologically important fatty acids (FA) from their diets to upper trophic levels. We used diet-switching experiments with ¹³C-labeled food sources to determine the time scale at ...

From a human perspective, the clear, calm waters of Michigan’s lakes — surrounded by trees, filled with fish, reflecting the sky — could hardly be more peaceful. For the tiny critters below the ...

Female D. magna of clone Xinb3 were synchronized and standardized to constant conditions to reduce variation in egg stage, cohort and quality caused by maternal status (i.e., maternal effects), that ...

Kyoto, Japan -- Life for the common water flea Daphnia must be tough. As a favorite meal choice for aquatic predators, they may need to make some creative morphological or behavioral changes for ...

Flourishing in spectacular numbers in lakes and ponds around the world, tiny creatures known as Daphnia play an essential role in freshwater ecology. Daphnia, a type of planktonic crustacean, are the ...

Gravid and barren Daphnia pulex were exposed to a variety of predators in laboratory aquaria. Small fish (guppies, sticklebacks and shiner fry) consistently preferred the gravid females, establishing ...

A new study challenges current theory about how an organism changes physical characteristics because of its environment. Current theory says similar conditions will favor phenotype changes within and ...

Prey size and risk of predation are strongly related to the medium-sized Daphnia -- a small, planktonic crustacean -- targeted by aquatic insects and fish. This phenotypic plasticity has been shown to ...