Round goby versus marbled crayfish: alien invasive predators and competitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F21%3A43902627" target="_blank" >RIV/60076658:12520/21:43902627 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1051/kmae/2021019" target="_blank" >https://doi.org/10.1051/kmae/2021019</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/kmae/2021019" target="_blank" >10.1051/kmae/2021019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Round goby versus marbled crayfish: alien invasive predators and competitors

Popis výsledku v původním jazyce

Aquatic biodiversity is threatened by spread of invasive alien species. Round goby Neogobius melanostomus is an invasive fish in large European rivers as well as in coastal waters near their mouths and marbled crayfish Procambarus virginalis is a highly invasive crustacean. Both are small, bottom-dwelling species occupying similar habitat and shelters and utilizing similar food sources. We hypothesized that goby presents a threat to both native and non-native astacofauna in invaded ecosystems. We tested this through laboratory experiments designed to determine aggressiveness and competitiveness of goby against marbled crayfish as a model for other North American cambarid crayfish, assessing goby prey size selection and competition with marbled crayfish for space and shelter. Gobies showed high aggressiveness and dominance over the crayfish. Goby predation on juvenile crayfish was limited by mouth gape size. In goby/crayfish pairs of similar weight, gobies were more aggressive, although each affected the behavior of the other.

Název v anglickém jazyce

Round goby versus marbled crayfish: alien invasive predators and competitors

Popis výsledku anglicky

Aquatic biodiversity is threatened by spread of invasive alien species. Round goby Neogobius melanostomus is an invasive fish in large European rivers as well as in coastal waters near their mouths and marbled crayfish Procambarus virginalis is a highly invasive crustacean. Both are small, bottom-dwelling species occupying similar habitat and shelters and utilizing similar food sources. We hypothesized that goby presents a threat to both native and non-native astacofauna in invaded ecosystems. We tested this through laboratory experiments designed to determine aggressiveness and competitiveness of goby against marbled crayfish as a model for other North American cambarid crayfish, assessing goby prey size selection and competition with marbled crayfish for space and shelter. Gobies showed high aggressiveness and dominance over the crayfish. Goby predation on juvenile crayfish was limited by mouth gape size. In goby/crayfish pairs of similar weight, gobies were more aggressive, although each affected the behavior of the other.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

<a href="/cs/project/LM2018099" target="_blank" >LM2018099: Jihočeské výzkumné centrum akvakultury a biodiverzity hydrocenóz</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Knowledge and Management of Aquatic Ecosystems

ISSN

1961-9502

e-ISSN

—

Svazek periodika

422

Číslo periodika v rámci svazku

neuveden

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

000648695800001

EID výsledku v databázi Scopus

2-s2.0-85105786488