Non-native three-spined stickleback, a small but voracious predator of invasive crayfish

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F24%3A43908220" target="_blank" >RIV/60076658:12520/24:43908220 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.25225/jvb.24060" target="_blank" >https://doi.org/10.25225/jvb.24060</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.25225/jvb.24060" target="_blank" >10.25225/jvb.24060</a>

Result language

angličtina

Original language name

Non-native three-spined stickleback, a small but voracious predator of invasive crayfish

Original language description

Numerous fish and crayfish species are invasive in freshwater ecosystems, where they interact. In this study, we performed two experiments to investigate adult three-spined stickleback Gasterosteus aculeatus predation on early juvenile invasive crayfish in Europe. The first experiment focused on evaluating predation upon early juveniles of three invasive species (the marbled crayfish Procambarus virginalis, the spiny-cheek crayfish Faxonius limosus, and the signal crayfish Pacifastacus leniusculus) with varying exposure times (one, three and six hours), revealing crayfish species-specific vulnerabilities and the role of exposure duration. Marbled and spiny-cheek crayfish juveniles were more susceptible to three-spined stickleback predation than signal crayfish. Nevertheless, larger signal crayfish suffered more damage caused by the fish predator. The second experiment assessed the role of size in predation efficiency, using three different size groups of marbled crayfish juveniles as prey of adult three-spined sticklebacks during three hours of exposure. In this second experiment, we found the predation level to be size-dependent, with the smallest group of juveniles (20-80 mg) being preyed upon the most, and the largest group (250-350 mg) the least. The efficient also predation of the three-spined stickleback on large juvenile crayfish underscores its potential ecological impacts also on native crayfish. © 2024 Institute of Vertebrate Biology Czech Academy of Sciences. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

Journal of Vertebrate Biology

ISSN

2694-7684

e-ISSN

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Volume of the periodical

73

Issue of the periodical within the volume

24060

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

12

Pages from-to

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UT code for WoS article

001317902200001

EID of the result in the Scopus database

2-s2.0-85203137043