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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10613 - Zoology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Vertebrate Biology

ISSN

2694-7684

e-ISSN

—

Svazek periodika

73

Číslo periodika v rámci svazku

24060

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

001317902200001

EID výsledku v databázi Scopus

2-s2.0-85203137043