Fish community responses to the establishment of a
piscivore, northern pike (Esox lucius), in a Nebraska Sandhill lake.
1997: Seasonal effects of variable recruitment of a dominant
piscivore on pelagic food web structure.
Although Acestrorhynchus species are recognized as
piscivores, A.
It has been suggested, however, that the evidence for strong top-down effects from the use of
piscivores is questionable (Seda et al.
Predatory behavior and selectivity of a primary
piscivore: comparing fish and non-fish prey.
Overall, the distribution of species among trophic groups was quite equitable: omnivores (19.4%, 13 species), invertivores (18.8%, 11 species), planktivores (15.6%, 6 species) and
piscivores (3.2%, 6 species).
Today, this non-native predator occupies a dominant position in the guild of large
piscivores on many reefs in the MHI (see Results section).
1986), explaining why biomanipulation attempts using
piscivore stocking (without supplemental removal of planktivorous and benthivorous fish) can fail to produce long-term reductions in phytoplankton biomass in eutrophic lakes (Benndorf 1995).
Foraging behavior: Although Noctilio leporinus is generally classified as a
piscivore, its diet in Culebra, Puerto Rico during the wet season was dominated by moths, beetles, and other insects (Brooke 1994).
High acidity, seasonally low oxygen, or both, exceed the tolerance ranges of many species, and
piscivores frequently contribute to local extinction.
Common predator interactions for small-bodied species in North American streams include
piscivore fishes (smallmouth bass, channel catfish) and crayfish.
As a
piscivore, perch are burdened with trade-off costs in feeding efficiency on different prey types, and juvenile perch are an inferior zooplankton feeder compared to roach (Persson 1987a, b).