|
| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
2300
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
(Ephemeroptera, Plecoptera, Trichoptera), taxa richness, Shannon diversity, and EPT/chironomid ratios were lower in streams with Neogobius melanostomus.
|
|
18396
|
|
2301
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
(Ephemeroptera, Plecoptera, Trichoptera), taxa richness, Shannon diversity, and EPT/chironomid ratios were lower in streams with Neogobius melanostomus.
|
|
18396
|
|
2302
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Ephemeroptera, Plecoptera, Trichoptera ratios were lower in streams with round gobies and the percent Chironomidae was higher. These results suggest that streams invaded by Neogobius melanostomus have experienced a reduction in mayfly/stonefly/caddisfly abundance with a resultant dominance by midges.
|
|
18396
|
|
2303
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Ephemeroptera, Plecoptera, Trichoptera ratios were lower in streams with round gobies and the percent Chironomidae was higher. These results suggest that streams invaded by Neogobius melanostomus have experienced a reduction in mayfly/stonefly/caddisfly abundance with a resultant dominance by midges.
|
|
18396
|
|
2304
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
Results demonstrate that Neogobius melanostomus will readily consume Lake Trout Salvelinus namaycush eggs and fry in the laboratory.
|
|
20441
|
|
2306
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Gut analysis of Neogobius melanostomus collected from the Detroit River, showed that they ate zebra mussels Dreissena polymorpha (58%), snails (6%), and other invertebrates (36%), including aquatic insects (Hexagenia), softshelled crayfish, and zooplankton.
|
|
20758
|
|
2307
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Field
|
When Neogobius melanostomus were present in southwestern Lake Michigan, the total benthic invertebrate biomass was reduced.
|
southwestern Lake Michigan
|
22573
|
|
2308
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Field
|
Neogobius melanostomus through predation can severely depress benthic organisms which usually feed upon Dreissena polymorpha.
|
southwestern Lake Michigan
|
22573
|
|
2309
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
Neogobius melanostomus utilize a wide range of foods but prefer to consume Zebra Mussels (Dreissena polymorpha).
|
|
23742
|
|
2316
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Gastropods (as well as chironomid larvae, caddisfly larvae, and ostracods) were consistently among the most preferred prey items consumed by Neogobius melanostomus, whereas dreissenids (as well as leeches and freshwater mites) were consistently avoided.
|
upper St. Lawrence River
|
24154
|
|
2317
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
The abundance and richness of small gastropods (=14 mm) was negatively correlated with Neogobius melanostomus density across all sites, and declined over time.
|
upper St. Lawrence River
|
24154
|
|
2319
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Stomach contents showed Neogobius melanostomus to be the second most abundant diet item in Lake Trout (Salvelinus namaycush) diet.
|
Lake Ontario
|
24184
|
|
2320
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Field
|
Neogobius melanostomus are influencing the benthic macroinvertebrate abundance through predation including Dreissena mussels.
|
|
24190
|
|
2321
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Field
|
There were significantly fewer zebra mussels (Dreissena polymorpha), quagga mussels (Dreissena rostriformis), isopods, amphipods, and snails from the rocks incubated at the Neogobius melanostomus abundant sites.
|
|
24190
|
|
2325
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Neogobius melanostomus preyed on zebra mussels Dreissena polymorpha, leaving only large size classes in exposed places.
|
Calumet Harbor, Lake Michigan
|
20499
|
|
2328
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Two species found to have significant diet overlap with Neogobius melanostomus in 1994,Noturus stigmosus and Etheostoma caeruleum, showed a significant decline in relative abundance between 1994 and 2011.
|
|
28227
|
|
2329
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Burbot Lota lota population had high potential to exert predatory control on Neogobius melanostomus in offshore waters of eastern Lake Erie.
|
eastern Lake Erie
|
27519
|
|
2330
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
The Neogobius melanostomus feeds efficiently on newly settled mollusks, causing a severe constraint for blue mussel Mytilus edulis recovery.
|
|
32538
|
|
2331
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Field
|
Predation from Neogobius melanostomus caused changes in blue mussel Mytilus edulis availability and size structure induced a dietary shift in wintering long-tailed duck Clangula hyemalis towards fish prey.
|
|
32538
|
|
2335
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
Small Neogobius melanostomus eat a variety of benthic macroinvertebrates (e.g., amphipods, isopods, insect larvae, benthic cIadocerans) and zebra mussels Dreissena polymorpha, whereas zebra mussels dominate the diets of large Neogobius melanostomus.
|
|
16594
|
|
2337
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
In laboratory experiments, Neogobius melanostomus will eat darters and other small fish. Of perhaps more concern is their predation on the eggs and fry of Lake Trout Salvelinus namaycush, which has been observed in laboratory experiments.
|
|
23383
|
|
2343
|
Neogobius melanostomus
|
Predation/Herbivory
|
Observational
|
Field
|
In LeBoeuf and French creeks, Pennsylvania, native juvenile Unionid mussels comprised a significant portion of Neogobius melanostomus diets.
|
|
32922
|
|
2344
|
Neogobius melanostomus
|
Predation/Herbivory
|
Anecdotal
|
Field
|
In addition to potential predation on unionids, Neogobius melanostomus may further impact mussels by altering populations of host fishes that the mussels need to complete their lifecycle, during which they are required to attach to host fish as glochidia and grow.
|
French Creek watershed, Pennsylvania
|
32922
|
|
2349
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Laboratory
|
Competition by Neogobius melanostomus round goby could increase the energy demands of adult Double Crested Cormorants Phalacrocorax auritus potentially leading to lower survivorship of offspring if the parents cannot meet the energy demands of the chicks.
|
|
25883
|
|
2350
|
Neogobius melanostomus
|
Predation/Herbivory
|
Experimental
|
Field
|
Neogobius melanostomus comprise the majority of the diet for Lake Erie water snakes (Nerodia sipedon insularum), and the abundance of gobies has been credited for the increase in population size, increased growth rates, and larger body size of the snakes.
|
|
24189
|
|