68 results for Neogobius melanostomus (Round Goby)

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Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Geographic Location Reference
2318 Neogobius melanostomus Competition Experimental Laboratory Neogobius melanostomus exhibited more aggressive behavior than logperch (Percina caprodes), and are superior space competitors. 24183
2322 Neogobius melanostomus Competition Observational Field Sites where Neogobius melanostomus were numerically dominant had 2.9 fewer native species on average when compared to other sites in the same rivers. 26633
2323 Neogobius melanostomus Competition Observational Field Several native benthic-feeding fish such as perch (Perca spp.), sculpin (Cottus spp.), and darter (Etheostoma spp.) have shown a decline in numbers since the invasion of the Neogobius melanostomus due to prey resource competition. 27072
2327 Neogobius melanostomus Competition 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. St. Clair River, Michigan 28227
2333 Neogobius melanostomus Competition Observational Field Mottle sculpin (Cottus bairdii) and Johnny darter (Etheostoma nigrum) have been regionally extirpated since the introduction of Neogobius melanostomus. 22628
2334 Neogobius melanostomus Competition Observational Field The several native fish species populations have declined in areas where the Neogobius melanostomus has become abundant. 874
2336 Neogobius melanostomus Competition Observational Field Neogobius melanostomus have a significant overlap in diet preference with many native fish species, suggesting that it competes with Rainbow Darter (Etheostoma caeruleum), Logperch (Percina caprodes), and Northern Madtom (Noturus stigmosus) for small macroinvertebrates due to dietary overlap. 16594
2339 Neogobius melanostomus Competition Experimental Laboratory Mottled sculpins (Cottus bairdi) have been almost totally extirpated from the study area due to Neogobius melanostomus. 13824
2342 Neogobius melanostomus Competition Experimental Laboratory Laboratory experiments have shown that the more aggressive N. melanostomus will evict C. bairdi from rock shelters that are being used for spawning or daytime predator evasion. 22570
2363 Neogobius melanostomus Competition Observational Field The Neogobius melanostomus is credited for several regional extirpations of the Mottled Sculpin (Cottus bairdi) and the Johnny Darter (Etheostoma nigrum). 32325
2364 Neogobius melanostomus Competition Observational Field Competition from the introduced Neogobius melanostomus, coupled with the impacts of zebra mussel establishment, appear to have extirpated the Greenside, Johnny, Fantail and Rainbow darter in regions of southern Michigan. southern Michigan 32325
2367 Neogobius melanostomus Competition Anecdotal Field Neogobius melanostomus may compete with and have the potential to affect other benthic fishes throughout the Great Lakes including darters (Etheostoma spp., Percina spp.), sculpins (slimy sculpin Cottus cognatus, deepwater sculpin Myoxocephalus thompsoni), and madtoms (Noturus spp.). 22497
3566 Neogobius melanostomus Competition Observational Field Significant diet overlap was observed between small Neogobius melanostomus and Rainbow Darters (Etheostoma caeruleum) and small Logperch (Percina caprodes). 16594
3567 Neogobius melanostomus Competition Observational Field Diet overlap between large Neogobius melanostomus and logperch (Percina caprodes) was moderate when mollusks (gastropods), ephemeropterans, and trichopterans were common in both diets. 16594
3570 Neogobius melanostomus Competition Observational Field Both large and small Neogobius melanostomus showed significant diet overlap with small Northern Madtoms (Noturus stigmosus) for Hexagenia. 16594
3573 Neogobius melanostomus Competition Anecdotal Field The significant diet overlap between northern madtoms (Noturus stigmosus) and Neogobius melanostomus may not portend real competition for food resources. 16594
3600 Neogobius melanostomus Competition Observational Field Proterorhinus semilunaris have been present at this site since 1998 and became the dominant fish along the shoreline zone in 2000 (Prá?sek and Jurajda, 2005). Round goby were first recorded at this site in 2008 (Lusk et al., 2010) and soon reached high abundance, overtaking Proterorhinus semilunaris in 2011 (P. Jurajda, unpublished data). 34202
3612 Neogobius melanostomus Competition Anecdotal N/A This agressive nature probably allows them to occupy optimal sites among rocks and to defend spawning sites, thus preventing native species access to prime areas. 633
3613 Neogobius melanostomus Competition Anecdotal N/A they have a well developed lateral line system, almost unique among Great Lakes fishes. This, we think, allows these fish to feed in the dark and thereby out-compete resident native fish for food. 633
3615 Neogobius melanostomus Competition Anecdotal N/A its reproductive pattern confers an ecological advantage on this species. Round gobies spawn over a long period of time so it can take advantage of optimal temperature and food conditions. It is a repeat spawner, spawning every 20 days or so, and males of this species protect their nests (under rocks, logs, cans) vigorously. 633
3622 Neogobius melanostomus Competition Experimental Laboratory The mean reactive distance for mottled sculpins was 3.7 (SD =1.27) mm, whilst the mean reactive distance for round gobies was 5.2 mm (SD= 1.74) indicating a higher sensitivity for Daphnia. 22782
3627 Neogobius melanostomus Competition Anecdotal N/A Aggressive round gobies probably drive a guarding male mottled sculpin off its nest and eat its eggs or YOY. Evidence from our studies suggests that this may be the case, since the one large mottled sculpin we had with a number of round gobies was always sitting on top of a rock in the aquarium. 22782
3628 Neogobius melanostomus Competition Observational N/A This competitive interaction would be most intense at small sizes, since both species are benthivorous at sizes up to around 60 mm; at larger sizes round gobies eat mainly mollusks. In addition, round gobies have a reactive distance to Daphnia equal to or better than mottled sculpins. 22782
3645 Neogobius melanostomus Competition Observational Field In the years following the arrival in 2011 of N. melanostomus in the River Meuse, a rapid decline in native C. perifretum average density from twenty to one individual per 100 m2 was observed, most likely due to predation and competition for shelter and/or food. River Meuse 34243
3652 Neogobius melanostomus Competition Experimental Laboratory Neogobius melanostomus was able to displace the resident fish. The higher aggression of N. melanostomus in shelter competition could account for greater invasive success and the reduction of P. semilunaris observed in the wild. 34252
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