Size‐dependent predation of round goby <i>Neogobius melanostomus</i> on blue mussels <i>Mytilus edulis</i>

Schwartzbach, Adina; Behrens, Jane; Svendsen, Jon Christian; Nielsen, Pernille; Deurs, Mikael van

doi:10.1111/fme.12400

Cited by 7 publications

(2 citation statements)

References 21 publications

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“…4), and further calculations (based on the presence of the round goby in the distribution area of blue mussels) suggest the highest impact risk of round goby in autumn (Q4). Irrespectively of their size, round goby prefers the smaller blue mussels (Schwartzbach et al 2019), and there is evidence that they feed efficiently on newly settled mollusks, causing a severe constraint for blue mussel recovery (Skabeikis et al 2018). Mussels are important ecosystem engineers, that provide habitat for a diverse fauna and flora, and they furthermore mitigate eutrophication effects thorough filtration (Donadi et al 2015;Chowdhury et al 2016;Petersen et al 2016).…”

Section: Potential Drivers Of the Described Migrationmentioning

confidence: 99%

Seasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations

et al. 2021

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Native to the Ponto-Caspian region, the benthic round goby (Neogobius melanostomus) has invaded several European inland waterbodies as well as the North American Great Lakes and the Baltic Sea. The species is capable of reaching very high densities in the invaded ecosystems, with not only evidence for significant food-web effects on the native biota and habitats, but also negative implications to coastal fishers. Although generally considered a coastal species, it has been shown that round goby migrate to deeper areas of the Great Lakes and other inland lakes during the cold season. Such seasonal movements may create new spatio-temporal ecosystem consequences in invaded systems. To seek evidence for seasonal depth distribution in coastal marine habitats, we compiled all available catch data for round goby in the Baltic Sea since its invasion and until 2017. We furthermore related the depths at capture for each season with the ambient thermal environment. The round goby spend autumn and winter at significantly deeper and offshore areas compared to spring and summer months; few fish were captured at depths < 25 m in these colder months. Similarly, in spring and summer, round goby were not captured at depths > 25 m. The thermal conditions at which round goby were caught varied significantly between seasons, being on average 18.3 °C during summer, and dropping to a low 3.8 °C during winter months. Overall, the fish sought the depths within each season with the highest possible temperatures. The spatial distribution of the round goby substantially overlaps with that of its main and preferred prey (mussels) and with that of its competitor for food (flatfish), but only moderately with the coastal predatory fish (perch), indicating thereby very complex trophic interactions associated with this invasion. Further investigations should aim at quantifying the food web consequences and coupling effects between different habitats related to seasonal migrations of the round goby, both in terms of the species as a competitor, predator and prey.

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Section: Potential Drivers Of the Described Migrationmentioning

confidence: 99%

Seasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations

et al. 2021

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“…In contrast, studies of their diet are quite common (e.g. Polačik et al 2009;Skabeikis and Lesutienė 2015;Nurkse et al 2016;Piria et al 2016;Oesterwind et al 2017;Schwartzbach et al 2020), along with a recent valuable experimental field study testing the effects of goby presence on native fauna using caged areas (i.e. goby presence vs. absence, Henseler et al 2021).…”

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Impacts of the invasive round goby (Neogobius melanostomus) on benthic invertebrate fauna: a case study from the Baltic Sea

Deurs¹,

Moran²,

Plet-Hansen³

et al. 2021

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The round goby (Neogobius melanostomus) was first observed in the Baltic Sea in 1990 and has since displayed substantial secondary dispersal, establishing numerous dense populations where they may outcompete native fish and negatively impact prey species. There have been multiple round goby diet studies from both the Baltic Sea and the North American Great Lakes where they are similarly invasive. However, studies that quantify their effects on recipient ecosystems and, specifically, their impacts on the benthic invertebrate macrofauna are rare, particularly from European waters. In this study, we conducted the first before-after study of the potential effects of round goby on benthic invertebrate macrofauna taxa in marine-brackish habitats in Europe, focusing of two sites in the Western Baltic Sea, Denmark. Results were in line with those from the Great Lakes, indicating negative impacts on specific molluscan taxa (e.g. Cardiidae bivalves and Neritidae gastropods, which both showed a fall in detected densities of approximately 98% within the Guldborgsund Strait). In contrast, many other groups appeared to be largely unaffected or even show positive trends following invasion. Round goby gut content data were available at one of our study sites from the period immediately after the invasion. These data confirmed that round goby had in fact been preying on the subset of taxa displaying negative trends.

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Resurvey of sea urchins and mussels at protected and harvested shores a decade after: A beyond-BACI approach

Bertocci

Martins²,

Meyer³

et al. 2021

Marine Environmental Research

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Size‐dependent predation of round goby Neogobius melanostomus on blue mussels Mytilus edulis

Cited by 7 publications

References 21 publications

Seasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations

Seasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations

Impacts of the invasive round goby (Neogobius melanostomus) on benthic invertebrate fauna: a case study from the Baltic Sea

Resurvey of sea urchins and mussels at protected and harvested shores a decade after: A beyond-BACI approach

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Size‐dependent predation of round goby Neogobius melanostomus on blue mussels Mytilus edulis

Cited by 7 publications

References 21 publications

Seasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations

Seasonal depth distribution and thermal experience of the non-indigenous round goby Neogobius melanostomus in the Baltic Sea: implications to key trophic relations

﻿Impacts of the invasive round goby (Neogobius melanostomus) on benthic invertebrate fauna: a case study from the Baltic Sea

Resurvey of sea urchins and mussels at protected and harvested shores a decade after: A beyond-BACI approach

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Product

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Impacts of the invasive round goby (Neogobius melanostomus) on benthic invertebrate fauna: a case study from the Baltic Sea