Identifying high-risk areas for introduction of new alien species: the case of the invasive round goby, a door-knocker for Norway

Forsgren, Elisabet; Hanssen, Frank Ole

doi:10.1007/s10750-022-04878-w

Cited by 5 publications

(1 citation statement)

References 59 publications

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“…Thermal habitat suitability techniques (e.g. nAMS mapping) could potentially benefit from integrating additional modelling approaches that have been recently used to describe the introduction processes, the dispersal and the distribution of suitable habitats for the round goby in Baltic and Norwegian coastal waters ( Kotta et al , 2016 ; Samson et al , 2017 ; Holmes et al , 2019 ; Forsgren and Hanssen, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Aerobic metabolic scope mapping of an invasive fish species with global warming

Quattrocchi,

Christensen,

Sinerchia

et al. 2023

Conservation Physiology

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Climate change will exacerbate the negative effects associated with the introduction of non-indigenous species in marine ecosystems. Predicting the spread of invasive species in relation to environmental warming is therefore a fundamental task in ecology and conservation. The Baltic Sea is currently threatened by several local stressors and the highest increase in sea surface temperature of the world’s large marine ecosystems. These new thermal conditions can further favour the spreading of the invasive round goby (Neogobius melanostomus), a fish of Ponto-Caspian origin, currently well established in the southern and central parts of the Baltic Sea. This study aims to assess the thermal habitat suitability of the round goby in the Baltic Sea considering the past and future conditions. The study combines sightings records with known physiological models of aerobic performance and sea surface temperatures. Physiological models read these temperatures, at sighting times and locations, to determine their effects on the aerobic metabolic scope (AMS) of the fish, a measure of its energetic potential in relation to environmental conditions. The geographical mapping of the AMS was used to describe the changes in habitat suitability during the past 3 decades and for climatic predictions (until 2100) showing that the favourable thermal habitat in the Baltic Sea has increased during the past 32 years and will continue to do so in all the applied climate model predictions. Particularly, the predicted new thermal conditions do not cause any reduction in the AMS of round goby populations, while the wintertime cold ranges are likely expected to preserve substantial areas from invasion. The results of this research can guide future monitoring programs increasing the chance to detect this invader in novel areas.

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Section: Discussionmentioning

confidence: 99%

Aerobic metabolic scope mapping of an invasive fish species with global warming

Quattrocchi,

Christensen,

Sinerchia

et al. 2023

Conservation Physiology

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Reproductive dysfunction in seawater provides an environmental barrier to the range expansion of the invasive Neogobius melanostomus into the North Sea

Green,

Griful-Dones,

Kvarnemo

2024

Biol Invasions

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Salinity can shape species’ distributions via physiological costs. Understanding how and when these costs occur can help predict colonisation patterns, for example during species invasions. To understand the impacts of high salinity environments on the ongoing expansion of the invasive round goby (Neogobius melanostomus) towards the North Sea, fish from this invasion front were spawned in a common-garden setup at different salinities. Reproductive adults were acclimated to a control (20 PSU) salinity representing the current invasion front conditions, and a North Sea coastal salinity (30 PSU). In these salinities they were sorted into spawning groups, and spawning attempts and egg development was tracked during 1.5 months. The results showed a strong impact of the 30 PSU salinity treatment, with a complete developmental failure of all clutches spawned in this salinity. The failed clutches resulted in a significant increase of egg consumption by the nest-guarding males. In addition, sperm velocity showed a decrease with increasing salinity when tested in both spawning salinities and at an intermediate level. Few differences in adult physiology were found as a consequence of the salinity treatments. These results show that, despite adult acclimation to North Sea coastal conditions, the gametes of N. melanostomus cannot as of now cope with the salinities into which their spread is currently predicted. Though adaptation or transgenerational acclimation might allow for reproduction in salinities higher than the species currently occupy, we suggest current models to incorporate a reproductive limit for N. melanostomus at a salinity of 30 PSU.

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Introductions of Non-Indigenous Species to Coastal and Estuarine Systems

Olenin,

Minchin

2024

Treatise on Estuarine and Coastal Science (Second Edition)

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Identifying high-risk areas for introduction of new alien species: the case of the invasive round goby, a door-knocker for Norway

Cited by 5 publications

References 59 publications

Aerobic metabolic scope mapping of an invasive fish species with global warming

Aerobic metabolic scope mapping of an invasive fish species with global warming

Reproductive dysfunction in seawater provides an environmental barrier to the range expansion of the invasive Neogobius melanostomus into the North Sea

Introductions of Non-Indigenous Species to Coastal and Estuarine Systems

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