The Alien Invasive Fish Species of Muddy Waters in the Odra River Basin: Current Situation and Future Trends

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F25%3A00647889" target="_blank" >RIV/67985904:_____/25:00647889 - isvavai.cz</a>

Result on the web

<a href="https://aca.pensoft.net/article/182552/" target="_blank" >https://aca.pensoft.net/article/182552/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3897/aca.8.e182552" target="_blank" >10.3897/aca.8.e182552</a>

Result language

angličtina

Original language name

The Alien Invasive Fish Species of Muddy Waters in the Odra River Basin: Current Situation and Future Trends

Original language description

Non-native invasive fish species pose a significant and growing threat to the biodiversity and ecological stability of the Odra River basin. This abstract examines the current status and future trends of key alien species within the Odra, including the Prussian carp (Carassius gibelio), pumpkinseed sunfish (Lepomis gibbosus), topmouth gudgeon (Pseudorasbora parva), and brown bullhead (Ameiurus nebulosus). Their introduction and spread are primarily driven by human activities, such as intentional stocking for aquaculture and recreational fishing, as well as unintentional transfers. The establishment and success of these species are facilitated by their functional and ecological traits, including resilience to pollution and low-oxygen conditions, strong parental care, and a highly plastic diet. These invasive species are causing significant environmental changes. The topmouth gudgeon has been found in enormous amounts in fishponds and severely suppresses zooplankton populations, leading to a substantial decrease in native fish production. Similarly, the Prussian carp has rapidly enlarged its range and can negatively influence indigenous species, such as the native crucian carp (Carassius carassius), by directly competing for food and space. Other species, like the brown bullhead and pumpkinseed, also outcompete native species and prey on their eggs and offspring. Future trends suggest that ongoing human disturbance of natural landscapes and economic activities will continue to facilitate the dispersal and establishment of these species. To combat this, a multi-faceted approach is necessary. Proposed protective measures include restoring natural water retention areas and removing obstacles to enhance fish migration, thereby increasing the resilience of the river ecosystem. Ultimately, the long-term ecological impacts of these invasions necessitate urgent and sustained conservation efforts to protect the native biodiversity of the Odra River basin.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10613 - Zoology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Article name in the collection

ARPHA Conference Abstracts

ISBN

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ISSN

2603-3925

e-ISSN

2603-3925

Number of pages

2

Pages from-to

e182552

Publisher name

ARPHA

Place of publication

-

Event location

Vídeň

Event date

Oct 23, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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