Comparative feeding ecology of invasive Ponto-Caspian gobies

@article{Brandner2012ComparativeFE,
  title={Comparative feeding ecology of invasive Ponto-Caspian gobies},
  author={Joerg Brandner and Karl Auerswald and Alexander F. Cerwenka and Ulrich Kurt Schliewen and Juergen Geist},
  journal={Hydrobiologia},
  year={2012},
  volume={703},
  pages={113-131}
}
Invasions of Ponto-Caspian gobiid fishes are suspected to cause regime shifts in freshwater ecosystems. This study compared the trophic niche differentiations of Neogobius melanostomus and Ponticola kessleri in the upper Danube River using stable isotope analyses (δ13C and δ15N), gut content analyses and morphometric analyses of the digestive tract. Both species were identified as predacious omnivores with high dietary overlap and a generalistic feeding strategy. Amphipods (especially invasive… 
The Review of Ecological and Genetic Research of Ponto-Caspian Gobies (Pisces, Gobiidae) in Europe
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The results suggest an impact of N. melanostomus on cray fish similar to that on A. aquaticus, potentially making it a threat to crayfish population stability and a potential threat to macrozoobenthic communities of river tributaries.
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References

SHOWING 1-10 OF 106 REFERENCES
Food resource partitioning between two invasive gobiid species (Pisces, Gobiidae) in the littoral zone of the River Danube, Hungary.
TLDR
Diet overlap was determined by the morphological differences of the species allowing a varying degree of differentiation according to the seasonally changing food supply, mainly by seasonal changes of the macroinvertebrate community.
Twenty years of invasion: a review of round goby Neogobius melanostomus biology, spread and ecological implications.
TLDR
This review provides a central reference as researchers continue studying N. melanostomus, which inhabit a wide range of temperate freshwater and brackish-water ecosystems and will probably continue to spread via ballast water, accidental bait release and natural dispersal worldwide.
Dispersal and emerging ecological impacts of Ponto-Caspian species in the Laurentian Great Lakes.
TLDR
Impacts of these benthic invaders vary with site: in some shallow areas, habitat changes and the Dreissena → round goby → piscivore food chain have improved conditions for certain native game fishes and waterfowl; in offshore waters, DreissENA is competing for settling algae with the native amphipod Diporeia spp.
Trophic Relationships in the Rhine Food Web during Invasion and after Establishment of the Ponto-Caspian Invader Dikerogammarus villosus
The Rhine ecosystem is highly influenced by anthropogenic stresses from pollution, intensive shipping and increased connectivity with other large European rivers. Canalization of the Rhine resulted
Trophic Relationships in the Rhine Food Web during Invasion and after Establishment of the Ponto-Caspian Invader Dikerogammarus villosus
TLDR
The Rhine ecosystem is highly influenced by anthropogenic stresses from pollution, intensive shipping and increased connectivity with other large European rivers, and can be considered ecosystem engineers determining the functional diversity and food web structure of the Rhine by either bottom-up or top-down regulation.
Establishment of gobiidae in the great lakes basin
A tubenose goby (Proterorhinus marmoratus), a European endangered species native to the Black and Caspian seas, was recovered on 11 April 1990 from the travelling screens of the Belle River Power
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