A preliminary evaluation of the <scp>E</scp>uropean <scp>N</scp>on‐native <scp>S</scp>pecies in <scp>A</scp>quaculture <scp>R</scp>isk <scp>A</scp>ssessment <scp>S</scp>cheme applied to species listed on Annex <scp>IV</scp> of the <scp>EU A</scp>lien <scp>S</scp>pecies <scp>R</scp>egulation

Copp, Gordon H.; Godard, Michael; Russell, I. C.; Peeler, E. J.; Gherardi, Francesca; Tricarico, Elena; Miossec, Laurence; Goulletquer, Philippe; Almeida, David; Britton, J. Robert; Vilizzi, Lorenzo; Mumford, John; Williams, C.; Reading, A. J.; Rees, Eleanor M.; Merino-Aguirre, Raquel

doi:10.1111/fme.12076

Cited by 29 publications

(32 citation statements)

References 26 publications

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“…Based on enclosures in a shallow temporary marsh in the Camargue (southern France), a negative relationship was found between C. carpio biomass and amount of aquatic vegetation left at the end of the experiment, but without effects on turbidity (Crivelli 1983). Also in that study, aquatic macrophyte loss was attributed to mechanical damage, similar to previous findings from North America.…”

Section: Enclosures Within a Water Bodysupporting

confidence: 87%

“…However, in some areas where it has naturalised (e.g. Western Europe and Thrace/Anatolia in Turkey), the species status is being re-assessed due to increasing awareness of the potential risks posed to the native biota (Almeida et al, 2013;Tarkan et al, 2014;Copp et al, 2015), despite the species being highly prized for sports fish (e.g. Arlinghaus and Mehner 2003;Hickley and Chare 2004;Rapp et al 2008), representing a valuable and productive fishery (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Sazanın (Cyprinus carpio L., 1758) Tatlısu Ekosistemlerine Etkileri İçin Deneysel Kanıt: Türkiye İç Suları İçin Yönetim Yönlendirmeleri Derlemesi

Vilizzi¹,

Tarkan²

2015

Journal of Limnology and Freshwater Fisheries Research

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Section: Enclosures Within a Water Bodysupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Sazanın (Cyprinus carpio L., 1758) Tatlısu Ekosistemlerine Etkileri İçin Deneysel Kanıt: Türkiye İç Suları İçin Yönetim Yönlendirmeleri Derlemesi

Vilizzi¹,

Tarkan²

2015

Journal of Limnology and Freshwater Fisheries Research

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“…), there is an ongoing requirement for risk assessments to be based on empirical data (Copp et al . ). Dietary interactions with resident species frequently determine the outcome of introductions of non‐native species (Baiser, Russell & Lockwood ; Jackson et al .…”

Section: Introductionmentioning

confidence: 97%

Patterns of trophic niche divergence between invasive and native fishes in wild communities are predictable from mesocosm studies

Tran

Jackson

Sheath

et al. 2015

Journal of Animal Ecology

124

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Summary Ecological theory attempts to predict how impacts for native species arise from biological invasions. A fundamental question centres on the feeding interactions of invasive and native species: whether invasion will result in increased interspecific competition, which would result in negative consequences for the competing species, or trophic niche divergence, which would facilitate the invader's integration into the community and their coexistence with native species.Here, the feeding interactions of a highly invasive fish, topmouth gudgeon Pseudorasbora parva, with three native and functionally similar fishes were studied to determine whether patterns of either niche overlap or divergence detected in mesocosm experiments were apparent between the species at larger spatial scales. Using stable isotope analysis, their feeding relationships were assessed initially in the mesocosms (1000 L) and then in small ponds (<400 m2) and large ponds (>600 m2).In the mesocosms, a consistent pattern of trophic niche divergence was evident between the sympatric fishes, with niches shifting further apart in isotopic space than suggested in allopatry, revealing that sharing of food resources was limited. Sympatric P. parva also had a smaller niche than their allopatric populations.In eight small ponds where P. parva had coexisted for several years with at least one of the fish species used in the mesocosms, strong patterns of niche differentiation were also apparent, with P. parva always at a lower trophic position than the other fishes, as also occurred in the mesocosms. Where these fishes were sympatric within more complex fish communities in the large ponds, similar patterns were also apparent, with strong evidence of trophic niche differentiation.Aspects of the ecological impacts of P. parva invasion for native communities in larger ponds were consistent with those in the mesocosm experiments. Their invasion resulted in divergence in trophic niches, partly due to their reduced niche widths when in sympatry with other species, facilitating their coexistence in invaded ecosystems. Our study highlights the utility of controlled mesocosm studies for predicting the trophic relationships that can develop from introductions of non‐native species into more complex ecosystems and at larger spatial scales.

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“…For piscivorous fishes, impacts tend to be via predation with, for example, invasive largemouth bass Micropterus salmoides and peacock basses of the Cichla genus having deleterious impacts on native species richness and fish abundance (Gratwicke & Marshall, 2001;Pelicice & Agostinho, 2009). Managing the impact of invasive fishes in open systems is challenging (Britton, Gozlan, & Copp, 2011), so predictions that indicate whether an introduced species will develop an invasion are fundamental to their management (Copp et al, 2014(Copp et al, , 2016. Spatial assessments of somatic growth rates assist these predictions (Britton, Harper, & Oyugi, 2010), especially as growth rates can be a strong proxy of other life-history traits (Oyugi et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…There has been much less focus on their spatial variability in growth parameters (Milardi, Lappalainen, Malinen, Vinni, & Ruuhijärvi, 2011;Pérez-Bote & Roso, 2012), and how their age range and somatic growth rates might vary across their native and invasive distributions. This is despite the ecological and management utility of these data for assisting invasion risk assessments across their invasive range (Copp et al, 2014(Copp et al, , 2016.…”

Section: Introductionmentioning

confidence: 99%

Spatial variability in the somatic growth of pikeperch Sander lucioperca, an invasive piscivorous fish

Nolan

Britton

2018

Ecology of Freshwater Fish

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Introduced fishes can develop invasive populations that impact native species and ecosystems. Understanding the population ecology of introduced species in their extended ranges and how this compares to their native ranges is therefore important for informing their management. Here, the age and somatic growth rates of the piscivorous freshwater fish pikeperch Sander lucioperca were analysed across their invasive and native ranges to determine their spatial patterns and drivers. Analyses were initially completed in their invaded range in central and western England. Populations varied spatially in their growth rates; being slowest for a population in a narrow and shallow canal and fastest in a large, impounded lowland river. A meta-analysis of parameters of the von Bertalanffy growth model then revealed that across their native and invasive ranges, their theoretical ultimate lengths (L ∞ ) and growth coefficients (K) were significantly related to latitude, but not longitude. Their relationships with latitude were nonlinear, with higher values of L ∞ and lower values of K being evident towards their northerly and southerly range limits. Faster growth rates were evident in the middle of their range (45 to 55°N), suggesting temperatures here were most optimal for growth, but were in a trade-off with reduced ultimate lengths. These spatial patterns suggest that whilst introduced S. lucioperca can colonise new waters across a wide area, the expression of their life-history traits will vary spatially, with potential implications for how invasive populations establish and integrate into native fish communities. K E Y W O R D Sclimate change, invasion, latitude-growth relationships, scale ageing, von Bertalanffy growth model, zander

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A preliminary evaluation of the European Non‐native Species in Aquaculture Risk Assessment Scheme applied to species listed on Annex IV of the EU Alien Species Regulation

Abstract: Developed for carrying out risk assessments under the European

Cited by 29 publications

References 26 publications

Sazanın (Cyprinus carpio L., 1758) Tatlısu Ekosistemlerine Etkileri İçin Deneysel Kanıt: Türkiye İç Suları İçin Yönetim Yönlendirmeleri Derlemesi

Sazanın (Cyprinus carpio L., 1758) Tatlısu Ekosistemlerine Etkileri İçin Deneysel Kanıt: Türkiye İç Suları İçin Yönetim Yönlendirmeleri Derlemesi

Patterns of trophic niche divergence between invasive and native fishes in wild communities are predictable from mesocosm studies

Spatial variability in the somatic growth of pikeperch Sander lucioperca, an invasive piscivorous fish

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