Impacts of predation by the Eurasian round goby (Neogobius melanostomus) on molluscs in the upper St. Lawrence River

Kipp, Rebekah; Hébert, Issac; Lacharité, Myriam; Ricciardi, Anthony

doi:10.1016/j.jglr.2011.11.012

Cited by 38 publications

(21 citation statements)

References 70 publications

(104 reference statements)

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“…Negative effects of gobies on gastropod density have been observed in the Great Lakes, either owing to direct consumption or indirect negative effects through goby destruction of dreissenid beds (Lederer et al 2006(Lederer et al , 2008. In our study, changes to dreissenids were less consistent than changes to gastropods, so it is likely that the latter resulted from selective goby predation (Kipp et al 2011).…”

Section: Round Goby Impacts On Different Functional Feeding Groupscontrasting

confidence: 70%

“…As there was a clear decline in biomass dominance of gastropod taxa from preinvasion and early-invasion stages to mid-and late-invasion stages, it seems most likely that declines in W in this study reflect a shift in dominance from large-bodied gastropods to smaller-bodied taxa, particularly chironomids, as a result of selective goby predation. This conclusion is supported by another study that measured a decline in the median size of gastropods with increasing goby density across the same St. Lawrence River sites; this size shift was linked to selective predation by gobies (suggested by diet analysis; Kipp et al 2011). …”

Section: Pre-invasionmentioning

confidence: 57%

“…For gastropods through time and space. Eight gastropod species were associated with samples in the preinvasion category in the CAP, while a ninth, E. livescens, is a relatively large and thick-shelled species that was rarely consumed by gobies in Lac Saint-Louis in 2009 (Kipp et al 2011). This snail was associated with early-invasion samples, apparently experiencing negative impacts of gobies later into the invasion than the other gastropod taxa.…”

Section: Round Goby Impacts On Different Functional Feeding Groupsmentioning

confidence: 98%

“…No study in the Great Lakes has examined the effects of gobies on the macroinvertebrate predator functional feeding group as a whole, although the only significant taxon-level effect in the experiments by Kuhns and Berg (1999) was on the predatory caddisfly Oecetis. In Lac SaintLouis in 2009, gobies were not found to consume any predatory macroinvertebrates except certain caddisflies (Kipp et al 2011). Impacts on macroinvertebrate predators other than caddisflies were therefore likely driven by declining prey availability.…”

Section: Round Goby Impacts On Different Functional Feeding Groupsmentioning

confidence: 98%

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Impacts of the Eurasian round goby (Neogobius melanostomus) on benthic communities in the upper St. Lawrence River

Kipp

Ricciardi

2012

Can. J. Fish. Aquat. Sci.

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An invasive benthivorous fish, the Eurasian round goby (Neogobius melanostomus) is abundant throughout the lower Great Lakes -St. Lawrence River system. We examined the round goby's potential to alter benthic communities on cobble substrates in the upper St. Lawrence River. During the summers of 2008 and 2009, macroinvertebrates and benthic algae were sampled across sites with varying goby densities. Archived data from various sites in 2004-2006 (prior to invasion) were available for comparison. Macroinvertebrate community composition varied significantly among samples grouped into categories based on goby density and time since invasion. Macroinvertebrate diversity and dominance by large-bodied taxa declined with increasing goby density. Surprisingly, dreissenid biomass did not vary consistently with goby density, in contrast to studies in the Great Lakes. The biomass of all non-dreissenid taxa was negatively correlated with increasing goby density across sites and over time at three of four sites. Negative effects were most pronounced on the biomass of gastropods. Benthic algal biomass increased with goby density across sites, suggesting a trophic cascade driven by the impacts of gobies on gastropods and other algivores. Our study highlights the potential ecosystem impacts of an expanding goby population in a large river.Résumé : Le poisson envahissant, consommateur de benthos, le gobie à taches noires d'Eurasie, Neogobius melanostomus, est abondant dans l'ensemble du système des Grands Lacs inférieurs et du Saint-Laurent. Nous étudions le potentiel qu'a le gobie à taches noires pour modifier les communautés benthiques sur les substrats pierreux dans la région amont du SaintLaurent. Durant les étés 2008 et 2009, nous avons échantillonné les macroinvertébrés et les algues benthiques dans un ensemble de sites présentant des densités diverses de gobies. Il existe des données en archives pour plusieurs sites en 2004-2006 (avant l'invasion) pour servir de comparaison. La composition des communautés d'invertébrés varie significativement dans les différents échantillons regroupés en catégories d'après la densité des gobies et le temps depuis l'invasion. La diversité des macroinvertébrés et la dominance des taxons de grande taille diminuent en fonction de l'augmentation de la densité des gobies. De manière inattendue, la biomasse des dreissénidés ne varie pas de manière cohérente en fonction de la densité des gobies, comme elle le fait dans les Grands Lacs selon certaines études. Dans trois de quatre sites, la biomasse de l'ensemble des taxons moins les dreissénidés est en corrélation négative avec l'accroissement des gobies dans les divers sites et les différentes périodes. Les effets négatifs les plus prononcés s'observent sur la biomasse des gastéropodes. La biomasse des algues benthiques augmente en fonction de la densité des gobies dans les différents sites, ce qui laisse croire à une cascade trophique causée par les impacts des gobies sur les gastéropodes et les autres consommateurs d'algues. Notre étude soulign...

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Section: Round Goby Impacts On Different Functional Feeding Groupscontrasting

confidence: 70%

Section: Pre-invasionmentioning

confidence: 57%

Section: Round Goby Impacts On Different Functional Feeding Groupsmentioning

confidence: 98%

Section: Round Goby Impacts On Different Functional Feeding Groupsmentioning

confidence: 98%

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Impacts of the Eurasian round goby (Neogobius melanostomus) on benthic communities in the upper St. Lawrence River

Kipp

Ricciardi

2012

Can. J. Fish. Aquat. Sci.

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“…A round goby this size has a gape width of only about 8 mm [14]. Maximum length of dreissenid mussels consumed by N. melanostomus of any size seems to be about 14 mm [17]. I conclude that the round gobies I observed were limited by their gape from consuming mussels at this location until the mussels were crushed.…”

Section: Discussionmentioning

confidence: 63%

A Field Observation of Rotational Feeding by Neogobius melanostomus

Angradi

2018

Fishes

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Neogobius melanostomus, the round goby, was recorded by underwater video feeding on crushed dreissenid mussels at a depth of 12 m in Georgian Bay of Lake Huron, a Laurentian Great Lake. In the video, gobies used rotational or twist feeding to tear away particles from crushed mussels. At least 43 examples of this feeding maneuver occur in the video. Up to 120 gobies m −2 were visible at a time in the video. Mean standard length of gobies appearing in the video was 37 mm. Mean standard length of fish exhibiting twist feeding was larger, 48 mm. Mean size of intact mussels in visible clusters was about 10 × 20 mm, a size which exceeds the gape width of the largest gobies observed in the video. Neogobius melanostomus is known to use twisting to wrest small attached mussels from the substrates which can be crushed by their pharyngeal teeth. I surmise that the behavior observed in the video is an opportunistic manifestation of this inherent behavioral adaptation to overcome gap limitation and exploit a temporary windfall of food.

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Fine scale spatio-temporal life history shifts in an invasive species at its expansion front

2016

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Impacts of predation by the Eurasian round goby (Neogobius melanostomus) on molluscs in the upper St. Lawrence River

Cited by 38 publications

References 70 publications

Impacts of the Eurasian round goby (Neogobius melanostomus) on benthic communities in the upper St. Lawrence River

Impacts of the Eurasian round goby (Neogobius melanostomus) on benthic communities in the upper St. Lawrence River

A Field Observation of Rotational Feeding by Neogobius melanostomus

Fine scale spatio-temporal life history shifts in an invasive species at its expansion front

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