Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river
Between 2012 and 2013, we estimated predation of non-native Ponto-Caspian gobies by native piscivores in a European mid-sized lowland river by analysing 268 digestive tracts from six native species: perch Perca fluviatilis, burbot Lota lota, European catfish Silurus glanis, pike Esox lucius, Volga z...
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Online Access: | https://doi.org/10.1127/fal/2017/1024 http://hdl.handle.net/11104/0274062 |
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ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0477821 2024-09-15T18:00:31+00:00 Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river Mikl, L. (Libor) Adámek, Z. (Zdeněk) Roche, K. (Kevin Francis) Všetičková, L. (Lucie) Šlapanský, L. (Luděk) Jurajda, P. (Pavel) 2017 https://doi.org/10.1127/fal/2017/1024 http://hdl.handle.net/11104/0274062 eng eng doi:10.1127/fal/2017/1024 urn:pissn: 1863-9135 urn:eissn: 1863-9135 http://hdl.handle.net/11104/0274062 invasive gobiids fish prey predatory fish diet food web structure invasive species impacts info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftczacademyscien https://doi.org/10.1127/fal/2017/1024 2024-08-19T05:33:01Z Between 2012 and 2013, we estimated predation of non-native Ponto-Caspian gobies by native piscivores in a European mid-sized lowland river by analysing 268 digestive tracts from six native species: perch Perca fluviatilis, burbot Lota lota, European catfish Silurus glanis, pike Esox lucius, Volga zander Sander volgensis and European zander S. lucioperca. Species closely associated with the rip-rap bank had a higher proportion of gobies in their diet (burbot 66 % weight proportion [%m], ≥ 1+ perch 53 %m, ≤ 2+ European catfish 42 %m) than those feeding more in open water (pike 29 %m, Volga zander 4 %m) or those limited by gape size (gobiid remains never observed in 0+ perch or 0+ European zander). Young (≤ 2+) European catfish and ≥ 1+ perch showed positive selection for tubenose goby Proterorhinus semilunaris, while burbot and pike showed a preference for round goby Neogobius melanostomus, though the values may have been affected by the relatively low sample sizes. We estimate that predators consumed approximately 52 % of goby biomass over our study stretch each year (burbot 41 %, ≤ 2+ European catfish 5 %, pike 3 %, all other predatory species < 2 % each), confirming that gobies rapidly become an important component in the aquatic food web of invaded rivers, both by preying on aquatic invertebrates and as prey to native predators (particularly burbot). On the other hand, our data suggest that the long-term impact on European goby populations, at least in our study area, has been limited, as indicated by their ongoing spread. Article in Journal/Newspaper Burbot Lota lota lota The Czech Academy of Sciences: Publication Activity (ASEP) Fundamental and Applied Limnology 190 2 157 171 |
institution |
Open Polar |
collection |
The Czech Academy of Sciences: Publication Activity (ASEP) |
op_collection_id |
ftczacademyscien |
language |
English |
topic |
invasive gobiids fish prey predatory fish diet food web structure invasive species impacts |
spellingShingle |
invasive gobiids fish prey predatory fish diet food web structure invasive species impacts Mikl, L. (Libor) Adámek, Z. (Zdeněk) Roche, K. (Kevin Francis) Všetičková, L. (Lucie) Šlapanský, L. (Luděk) Jurajda, P. (Pavel) Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river |
topic_facet |
invasive gobiids fish prey predatory fish diet food web structure invasive species impacts |
description |
Between 2012 and 2013, we estimated predation of non-native Ponto-Caspian gobies by native piscivores in a European mid-sized lowland river by analysing 268 digestive tracts from six native species: perch Perca fluviatilis, burbot Lota lota, European catfish Silurus glanis, pike Esox lucius, Volga zander Sander volgensis and European zander S. lucioperca. Species closely associated with the rip-rap bank had a higher proportion of gobies in their diet (burbot 66 % weight proportion [%m], ≥ 1+ perch 53 %m, ≤ 2+ European catfish 42 %m) than those feeding more in open water (pike 29 %m, Volga zander 4 %m) or those limited by gape size (gobiid remains never observed in 0+ perch or 0+ European zander). Young (≤ 2+) European catfish and ≥ 1+ perch showed positive selection for tubenose goby Proterorhinus semilunaris, while burbot and pike showed a preference for round goby Neogobius melanostomus, though the values may have been affected by the relatively low sample sizes. We estimate that predators consumed approximately 52 % of goby biomass over our study stretch each year (burbot 41 %, ≤ 2+ European catfish 5 %, pike 3 %, all other predatory species < 2 % each), confirming that gobies rapidly become an important component in the aquatic food web of invaded rivers, both by preying on aquatic invertebrates and as prey to native predators (particularly burbot). On the other hand, our data suggest that the long-term impact on European goby populations, at least in our study area, has been limited, as indicated by their ongoing spread. |
format |
Article in Journal/Newspaper |
author |
Mikl, L. (Libor) Adámek, Z. (Zdeněk) Roche, K. (Kevin Francis) Všetičková, L. (Lucie) Šlapanský, L. (Luděk) Jurajda, P. (Pavel) |
author_facet |
Mikl, L. (Libor) Adámek, Z. (Zdeněk) Roche, K. (Kevin Francis) Všetičková, L. (Lucie) Šlapanský, L. (Luděk) Jurajda, P. (Pavel) |
author_sort |
Mikl, L. (Libor) |
title |
Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river |
title_short |
Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river |
title_full |
Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river |
title_fullStr |
Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river |
title_full_unstemmed |
Invasive Ponto-Caspian gobies in the diet of piscivorous fish in a European lowland river |
title_sort |
invasive ponto-caspian gobies in the diet of piscivorous fish in a european lowland river |
publishDate |
2017 |
url |
https://doi.org/10.1127/fal/2017/1024 http://hdl.handle.net/11104/0274062 |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_relation |
doi:10.1127/fal/2017/1024 urn:pissn: 1863-9135 urn:eissn: 1863-9135 http://hdl.handle.net/11104/0274062 |
op_doi |
https://doi.org/10.1127/fal/2017/1024 |
container_title |
Fundamental and Applied Limnology |
container_volume |
190 |
container_issue |
2 |
container_start_page |
157 |
op_container_end_page |
171 |
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1810437668028284928 |