Pilferer, murderer of innocents or prey? The potential impact of killer shrimp (Dikerogammarus villosus) on crayfish

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F21%3A43902490" target="_blank" >RIV/60076658:12520/21:43902490 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s00027-020-00762-8" target="_blank" >https://doi.org/10.1007/s00027-020-00762-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00027-020-00762-8" target="_blank" >10.1007/s00027-020-00762-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pilferer, murderer of innocents or prey? The potential impact of killer shrimp (Dikerogammarus villosus) on crayfish

Popis výsledku v původním jazyce

Freshwater ecosystems worldwide are facing the establishment of non-native species, which, in certain cases, exhibit invasive characteristics. The impacts of invaders on native communities are often detrimental, yet, the number and spread of non-native invasive species is increasing. This is resulting in novel and often unexpected combinations of non-native and native species in natural communities. While the impact of invaders on native species is increasingly well-documented, the interactions of non-native invaders with other non-native invaders are less studied. We assessed the potential of an invasive amphipod, the killer shrimpDikerogammarus villosus(Sowinsky, 1894), to cope with other established invaders in European waters: North American crayfish of the Astacidae family-represented by signal crayfishPacifastacus leniusculus(Dana, 1852), and the Cambaridae family-represented by marbled crayfishProcambarus virginalisLyko, 2017. The main goal of this study was to investigate if killer shrimp, besides their role as prey of crayfish, can significantly influence their stocks by predating upon their eggs, hatchlings and free-moving early juveniles. Our results confirmed that killer shrimp can predate on crayfish eggs and hatchlings even directly from females abdomens where they are incubated and protected. As marbled crayfish have smaller and thinner egg shells as well as smaller juveniles than signal crayfish, they were more predated upon by killer shrimp than were signal crayfish. These results confirmed that the invasive killer shrimp can feed on different developmental stages of larger freshwater crustaceans and possibly other aquatic organisms.

Název v anglickém jazyce

Pilferer, murderer of innocents or prey? The potential impact of killer shrimp (Dikerogammarus villosus) on crayfish

Popis výsledku anglicky

Freshwater ecosystems worldwide are facing the establishment of non-native species, which, in certain cases, exhibit invasive characteristics. The impacts of invaders on native communities are often detrimental, yet, the number and spread of non-native invasive species is increasing. This is resulting in novel and often unexpected combinations of non-native and native species in natural communities. While the impact of invaders on native species is increasingly well-documented, the interactions of non-native invaders with other non-native invaders are less studied. We assessed the potential of an invasive amphipod, the killer shrimpDikerogammarus villosus(Sowinsky, 1894), to cope with other established invaders in European waters: North American crayfish of the Astacidae family-represented by signal crayfishPacifastacus leniusculus(Dana, 1852), and the Cambaridae family-represented by marbled crayfishProcambarus virginalisLyko, 2017. The main goal of this study was to investigate if killer shrimp, besides their role as prey of crayfish, can significantly influence their stocks by predating upon their eggs, hatchlings and free-moving early juveniles. Our results confirmed that killer shrimp can predate on crayfish eggs and hatchlings even directly from females abdomens where they are incubated and protected. As marbled crayfish have smaller and thinner egg shells as well as smaller juveniles than signal crayfish, they were more predated upon by killer shrimp than were signal crayfish. These results confirmed that the invasive killer shrimp can feed on different developmental stages of larger freshwater crustaceans and possibly other aquatic organisms.

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/GA19-04431S" target="_blank" >GA19-04431S: Teplotou ovlivněné změny v interakcích a ekologických rolích prominentních invazivních raků</a><br>

Návaznosti

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

Aquatic Sciences

ISSN

1015-1621

e-ISSN

—

Svazek periodika

83

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000582469500001

EID výsledku v databázi Scopus

2-s2.0-85092629007