Occurrence of exotic fish and crayfish species in Barát and Dera creeks and their adjacent section of the River Danube

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F18%3A43897606" target="_blank" >RIV/60076658:12520/18:43897606 - isvavai.cz</a>

Result on the web

<a href="http://haltanitarsasag.hu/ph12/Szendofi_et.al_Pisces.Hungarici_2018.pdf" target="_blank" >http://haltanitarsasag.hu/ph12/Szendofi_et.al_Pisces.Hungarici_2018.pdf</a>

DOI - Digital Object Identifier

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Result language

maďarština

Original language name

Egzotikus halfajok és decapodák a Barát‐ és Dera‐patakban, valamint a torkolatuk dunai élőhelyein

Original language description

Thermal and urban waters are frequently subjected to the releases of aquatic pets, which often occur in unexpected assemblages of native and non‐native species. To document this, we conducted a half‐year‐long (January – July 2018) field survey the crayfish and fish species present in Barát and Dera creeks (two sampling sites per each) and sections adjacent to their mouth in the River Danube. Sampling sites were inspected monthly using a combination of catching methods. Altogether, four non‐native crayfish, ten nonnative and twelve native fish were recoded. Several individuals of spiny‐cheek crayfish (Faxonius limosus), marbled crayfish (Procambarus virginalis), red swamp crayfish (Procambarus clarkii) and Australian redclaw (Cherax quadricarinatus) were sampled in the thermal water tributary of Barát creek. The Dera creek was not influenced with the thermal or industrial warm water, but the urbanised area affected the water quality, which was still acceptable for occurrence of spiny‐cheek crayfish, marbled crayfish and red swamp crayfish. Besides already well established population of spiny‐cheek crayfish, also marbled crayfish and red swamp crayfish inhabited the River Danube itself. Seven non‐native decapods have been reported in the Hungarian wild so far. However, this is to our knowledge the first published report on co‐occurrence of three North‐American crayfish as well as a combination of North‐American and Australasian crayfish species in Europe. The new faunistic records of exotic live‐bearing fish species from the family Poeciliidae and their hybrids from Barát creek were also obtained. These findings highlight the significance of pet trade as an introduction pathway and thermal as well as urban waters as target sites for new introductions. Roles of established nonnative species and their possible spread are issues requiring further targeted research.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

40103 - Fishery

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Pisces Hungarici

ISSN

1789-1329

e-ISSN

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Volume of the periodical

2018

Issue of the periodical within the volume

12

Country of publishing house

HU - HUNGARY

Number of pages

5

Pages from-to

47-51

UT code for WoS article

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EID of the result in the Scopus database

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