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Nutrient excretion by fish in wetland ecosystems and its potential to support algal production
Nutrient excretion support algal production
2014/4/23
We used both direct measurement and bioenergetic methods to examine nitrogen and phosphorus (P) excretion
by fathead minnows in two wetlands over 2 yr. We also assessed the potential importance of nu...
Can feeding of fish on terrestrial insects subsidize the nutrient pool of lakes?
errestrial insects subsidize lakes
2014/5/13
We estimated consumption and excretion rates of terrestrial-borne phosphorus by a population of the insectfeeding fish species bleak (Alburnus alburnus) in a 0.12-km2
mesotrophic lake of the Ge...
Nutrient recycling by fish versus zooplankton grazing as drivers of the trophic cascade in alpine lakes
fi sh versus alpine lakes
2014/5/13
In a multilake experiment, we found little effect of nutrient excretion by zooplanktivorous fish, but a large effect
of herbivorous zooplankton, on phytoplankton biomass and phosphorus (P) limi...
The morphology of branching corals effectively blocks impinging currents. Weak flows in the colony’s inner
sections can hinder some of the corals’ basic physiological functions. At night, high ...
Zooplankton recovery after fish removal: Limitations of the egg bank
Zooplankton recovery bank
2014/5/16
The Allee effect, operating via mate limitation, theoretically reduces the probability of recovery from local
extinction of dioecious zooplankton relative to species that can reproduce asexually. We ...
Aquatic food webs are affected from the bottom up by light through its effect on photosynthesis and productivity.
But light also has a top-down effect, because it is crucial for the visual foraging e...
The relative importance of fish predation and excretion effects on planktonic communities
fi sh predation planktonic communities
2014/6/9
The effects of planktivorous fish on lower trophic levels through predation on zooplankton and nutrient excretion
were experimentally separated and their relative importance quantified in...
Littoral zone structures as Daphnia refugia against fish predators
Littoral zone structures fi sh predators
2014/5/30
The assumption that macrophytes can provide zooplankton a daytime refuge against fish predation is central to
the diel horizontal migration hypothesis. However, previous observations and experi...
Orientation in complex chemical landscapes: Spatial arrangement of chemical sources influences crayfish food-finding efficiency in artificial streams
complex chemical landscapes chemical sources infl uences
2014/5/30
Fluid dynamics has been shown to alter ecologically important behaviors of aquatic organisms orienting to distant
chemical sources. Because the fluid dynamics and chemical plumes change across ...