Non-native fish species in Hungarian waters: historical overview, potential sources and recent trends in their distribution

Takács, Péter; Czeglédi, István; Ferincz, Árpád; Sály, Péter; Specziár, András; Vitál, Zoltán; Weiperth, András; Erős, Tibor

doi:10.1007/s10750-017-3147-x

Cited by 28 publications

(25 citation statements)

References 74 publications

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“…Previous studies found a strong relationship between the distribution of fishponds and other water storage reservoirs in the landscape and the proliferation of non-native fishes (Moyle & Marchetti, 2006;Johnson et al, 2008). These artificial lentic habitats are especially abundant in the vicinity of urban and agricultural areas (Erős et al, 2012;Takács et al, 2017). Thus, it is not surprising that non-native invasive fishes were more abundant in these stream types than in streams which run in relatively remote protected areas.…”

Section: Discussionmentioning

confidence: 98%

“…We also expected that natural stream conditions would make the habitat more resistant to invasion (Marchetti and Moyle, 2001), and that protected status would ensure the preservation of natural stream habitats to some degree. Water storage reservoirs and fishponds are common in this region and are utilized in agriculture; they have been found to be most highly associated with the proliferation of non-natives in this (Erős et al, 2012;Takács et al, 2017) and other biogeographic regions (Havel et al, 2005;Clavero and Hermoso, 2011). Therefore, we predicted that the influence of non-native fishes on community structure would be highest in agricultural areas, show intermediate level influence in perturbed urban sites, and be lowest in protected sites.…”

Section: Introductionmentioning

confidence: 96%

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Land use effects in riverscapes: Diversity and environmental drivers of stream fish communities in protected, agricultural and urban landscapes

Tóth

Czeglédi

Kern

et al. 2019

Ecological Indicators

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Increasing agriculture and urbanization inevitably lead to changes in the biodiversity of stream ecosystems. However, few studies examined comprehensively how biodiversity is distributed within and among protected, agricultural and urban land use types in streams. We studied environmental characteristics of streams and patterns of species richness and other community attributes of stream fish communities in these three characteristic land use types in the catchment of the Danube River, Hungary. Land use separated streams to some degree based on their environmental characteristics. However, both between stream environmental and fish community variability were high in most types, and comparable to land use type level differences in case of many streams. A variety of environmental gradients influenced fish community structure rather independently of land use type, which was also influenced by spatial drivers. Non-native fishes modified the structure of native fish communities, especially in agricultural streams, although their modification effect varied more among individual streams than among land use types. In conclusion, land use type proved to be a poor predictor of fish communities in this human modified landscape. We found that even intensively managed areas (i.e. agricultural and urban) can contribute to the maintenance of fish diversity in this biogeographic region, or at least their potential can be comparable to those streams which flow in protected areas. Thus, conservation management should focus on maintaining streams in more natural condition in protected areas and/or use the potential of non-protected agricultural and urban streams in maintaining fish diversity in human modified landscapes.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 96%

Land use effects in riverscapes: Diversity and environmental drivers of stream fish communities in protected, agricultural and urban landscapes

Tóth

Czeglédi

Kern

et al. 2019

Ecological Indicators

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“…Further effort was invested in the fight against invasive species. Hungary lies in the gateway of species invasion and is especially threatened by plants and animals as well (Lukács et al 2016;Takács et al 2017). Therefore, restoration efforts are important for their control, but the area should be greatly increased to cope with the problem.…”

Section: Comparison Of the Type Of Degradation And Restoration Aimsmentioning

confidence: 99%

Meeting Aichi Target 15: Efforts and further needs of ecological restoration in Hungary

Török

Horváth

Kövendi-Jakó

et al. 2019

Biological Conservation

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Aichi Target 15 aims to enhance the resilience of ecosystems through the restoration of 15 % of degraded land by 2020. Compliance with the target is still insufficient, partly due to the lack of appropriate baselines and knowledge of restoration efforts. The four-level model of ecosystem condition was suggested to set the baseline and support the estimation of progress. This study is the first to assess the condition of MAES ecosystem types at a country scale, using the suggested approach. Altogether 613 000 ha of land is in close to natural condition (Level 1), 893 000 ha in a slightly degraded state (Level 2), 1 907 000 ha in moderately degraded condition (Level 3), and 5 890 000 ha of land is in highly modified category (Level 4). An inventory of ecological restoration interventions was created based on the reports of the national park directorates and EU LIFE projects. The findings of the restoration database of 634 interventions were compared to the need for restoration of nine habitat types. Restoration efforts were focused at habitat types with the most extended degraded area, except for dry forest restoration and the fight against invasive species in all three forest types. This study provides a more reliable estimate of habitats in natural state than Habitat Directive reporting can achieve, therefore better suited for estimating compliance with the 15 % target. Only 1 % of degraded land was the target for restoration in the period of 2002-2016. The details of the survey regarding habitat and degradation types can support further restoration planning.

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“…Several non-native fishes settled in European lakes, which may threaten biodiversity and ecosystem functioning (e.g. Musil et al, 2010;Ciutti et al, 2011;Ferincz et al, 2016;Takács et al, 2017). Yet data are sporadic about their abundance and habitatuse patterns, which may hinder the determination of population trends and eradication strategies.…”

Section: Introductionmentioning

confidence: 99%

Habitat use of invasive monkey goby (Neogobius fluviatilis) and pumpkinseed (Lepomis gibbosus) in Lake Balaton (Hungary): a comparison of electrofishing and fyke netting

et al. 2019

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Detailed knowledge on the habitat preference of invasive fishes and the bias of different fishing methods in determining their population dynamic parameters are essential in fisheries management, ecology and conservation. This study was conducted to determine the habitat use and length frequency distribution of the invasive monkey goby and pumpkinseed in the littoral zone of Lake Balaton (Hungary) using two different sampling methods, electrofishing and fyke netting. In general, both species preferred anthropogenically modified habitat types (rip-rap shorelines and harbours) compared with natural reed habitats with silty-sand bottom. Length frequency distribution data showed significant between-gear differences, since electrofishing resulted in the capture of larger individuals in greater proportion than fyke nets for both species. This study, which includes the first detailed data about the habitat use of the highly invasive monkey goby in lakes, suggests that invasive species may benefit from the alteration of the littoral zone. It also highlights that reliance on single gear surveys can be misleading in assessing habitat use and population structure of invasive fishes.

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Non-native fish species in Hungarian waters: historical overview, potential sources and recent trends in their distribution

Cited by 28 publications

References 74 publications

Land use effects in riverscapes: Diversity and environmental drivers of stream fish communities in protected, agricultural and urban landscapes

Land use effects in riverscapes: Diversity and environmental drivers of stream fish communities in protected, agricultural and urban landscapes

Meeting Aichi Target 15: Efforts and further needs of ecological restoration in Hungary

Habitat use of invasive monkey goby (Neogobius fluviatilis) and pumpkinseed (Lepomis gibbosus) in Lake Balaton (Hungary): a comparison of electrofishing and fyke netting

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