Dietary habits of invasive Ponto-Caspian gobies in the Croatian part of the Danube River basin and their potential impact on benthic fish communities

Piria, Marina; Jakšić, Goran; Jakovlić, Ivan; Treer, Tomislav

doi:10.1016/j.scitotenv.2015.05.125

Cited by 38 publications

(46 citation statements)

References 29 publications

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“…Traditional diet studies of N. fluviatilis and P. semilunaris in both native and non-native regions (Sindilariu & Freyhof, 2003;Kakareko, Zbikowski, & Zytkowicz, 2005;Adámek et al, 2007;Gaygusuz et al, 2007;Grabowska et al, 2009;Gürsoy Gaygusuz, Tarkan, & Gaygusuz, 2010;Adámek et al 2010;Piria et al, 2011;Piria, Jakšić, Jakovlić, & Treer, 2016;Mikl et al, 2017) are in accordance with SIA results in the present study, with the exception of plant material that was one of the important groups found in SIA for both gobiids in İznik and Uluabat lakes (Table 2). However, the dominance of food groups was represented differently between stomach contents RESEARCH PAPER -2712-v18_11_04 and SIA, which might relate to the latter providing a time-integrated analysis of assimilated diet sources (Thomas & Crowther, 2015), whereas stomach content analysis provides only a snapshot of ingested food resources at the time of sampling (e.g.…”

Section: Discussionsupporting

confidence: 88%

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Tarkan¹,

Karakuş²,

Tepeköy³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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Several Ponto-Caspian gobiids have expanded from their native distribution ranges to Europe and North America. As knowledge on their bio-ecological features in their native range is still limited, the trophic ecology of monkey goby Neogobius fluviatilis and Western tubenose goby Proterorhinus semilunaris was studied in three natural lakes in the Marmara Region of NW Turkey using the stable isotopes of δ 13 C and δ 15 N. In two of the lakes, the trophic niches (as the isotopic niche) of the gobies were highly divergent with co-existing native fishes, with no overlap. Moreover, mixing models suggests considerable inter-specific dietary differences. In all lakes, the trophic niches of gobies were never significantly larger than those of coexisting fishes. These results suggest that when introduced outside of their natural range, the gobies might integrate into new fish communities via exploiting resources that are underexploited by native fishes or will initially share resources with these species before their niches diverge, perhaps through competitive displacement.

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Section: Discussionsupporting

confidence: 88%

Untitled

Tarkan¹,

Karakuş²,

Tepeköy³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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“…), of which monkey goby Neogobius fluviatilis , round goby Neogobius melanostomus and bighead goby Ponticola kessleri have established self‐sustaining populations (Piria et al . ). Although many of these introductions have occurred on a regular basis (Povž & Ocvirk ), their impacts are completely unknown due to a scarcity of studies on non‐native fishes (Povž et al .…”

Section: Introductionmentioning

confidence: 97%

Risk screening of non‐native freshwater fishes in Croatia and Slovenia using the Fish Invasiveness Screening Kit

Piria

Povž

Vilizzi

et al. 2016

Fisheries Management Eco

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The Fish Invasiveness Screening Kit (FISK) version 2 was used to assess the invasiveness potential of 40 introduced and translocated freshwater fish species to Croatia and Slovenia. Based on a priori classification of invasiveness, receiver operating characteristic analysis of FISK scores from two independent assessors resulted in a statistically significant calibration threshold of 11.75. This indicated that FISK was able to discriminate reliably between non‐native species likely to pose a high risk of being invasive and those likely to pose a medium or low risk of invasiveness. Seven species were categorised as ‘medium risk’ and the other 33 as ‘high risk’, whereas no species was categorised as ‘low risk’. The two highest scoring species were European catfish Silurus glanis and North African catfish Clarias gariepinus. Mean scores for all species classified a priori as invasive were ranked as ‘high risk’ sensu lato and fell into the ‘moderately high risk’ subcategory. FISK proved to be a valid tool for assessing the risks posed by non‐native fishes in Croatia and Slovenia. For this reason, it can be adopted as a reliable tool for the prevention of new translocations or introductions of potentially invasive species in the risk assessment area, as well as to assist in decisions regarding future management (i.e. monitoring, control and eradication) and conservation strategies.

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“…Field observations and experiments have shown that invasive gobies can have severe detrimental effects on native fishes (Dubs & Corkum, ; Janssen & Jude, ; Jůza et al, ; Kakareko et al, ; van Kessel et al, ). Other studies, however, showed that goby invasions did not impact local fish communities (Janáč et al, , ; Kornis et al, ; Piria, Jakšić, Jakovlić, & Treer, ) or may even be beneficial, e.g., for native predators (King, Ray, & Stanford, ; Mikl et al, ; Płąchocki, Kobak, & Kakareko, ). In our study, the co‐occurrence analysis showed that each goby species had a specific set of species with which it co‐occurred significantly more or less often than expected from a random distribution.…”

Section: Discussionmentioning

confidence: 98%

“… Species were selected based on significant associations with gobies found in this study (*) and/or their inclusion in previous studies that addressed (potential) impacts of invasive gobies on native competitors, prey, or predators (examples listed as References A‐N): (A) Mueller et al (), (B) Ivanova and Kas’yanov (), (C) Madenjian et al (), (D) Mikl et al (), (E) Kornis et al (), (F) Płąchocki et al (), (G) Janáč et al (), (H) Hempel et al (), (I) Copp et al (), (J) Janáč et al (), (K) Jermacz, Kobak, Dzierżyńska, and Kakareko (), (L) Kakareko et al, (), (M) Piria et al (), (N) Cerwenka et al (). …”

Section: Discussionmentioning

confidence: 99%

Occurrence of non‐native fishes in the Danube east of Vienna (Austria) and potential interactions of invasive gobiids with native fishes

Ramler

Keckeis

2019

J Appl Ichthyol

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Summary Non‐native fish species pose a major threat to local fish populations and aquatic ecosystems in general. Invasive gobies are a particular focus of research, but with partly inconsistent results. While some studies reported severe detrimental impacts on native species, others have concluded less serious or neutral effects. We provide results from a large‐scale, multi‐annual fish monitoring program on the occurrence and abundance of non‐native fishes in the main stem of a free‐flowing section of the Austrian Danube. Special emphasis was placed on identifying positive or negative interactions of invasive gobies with native species. Whereas most non‐native species occurred too sporadically or were too few in number to infer a direct threat on the local fish community, invasive gobies were among the most common fishes throughout all sampling years. Co‐occurrence analyses revealed species‐ and mesohabitat type‐specific associations of gobies with native species, which were primarily positive. Notably, native predators such as asp, burbot, or perch probably benefit from the ubiquitous gobies. Two characteristic fluvial fishes revealed negative associations with invasive gobies, namely barbel (Barbus barbus) and Danube whitefin gudgeon (Romanogobio vladykovi): they appear to avoid habitats occupied by gobies. Accordingly, high abundances of round and bighead goby most likely resulted in population losses of barbel and whitefin gudgeon, respectively. Overall, our results indicate a limited negative impact of non‐native species in the sampling area. This is because only two out of 51 occurring species were found to be adversely affected by gobies, the share of co‐occurrences with native species was high, and other non‐native species were generally rare. Nevertheless, invasions are highly dynamic, and new non‐native species are likely to occur in the Austrian Danube, calling for continued monitoring and awareness.

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Dietary habits of invasive Ponto-Caspian gobies in the Croatian part of the Danube River basin and their potential impact on benthic fish communities

Cited by 38 publications

References 29 publications

Untitled

Untitled

Risk screening of non‐native freshwater fishes in Croatia and Slovenia using the Fish Invasiveness Screening Kit

Occurrence of non‐native fishes in the Danube east of Vienna (Austria) and potential interactions of invasive gobiids with native fishes

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