J 2016

Early life stages of exotic gobiids fish represent attractive new host for unionid glochidia

ŠLAPANSKÝ, Luděk, Michal JANÁČ and Pavel JURAJDA

Basic information

Original name

Early life stages of exotic gobiids fish represent attractive new host for unionid glochidia

Authors

ŠLAPANSKÝ, Luděk (203 Czech Republic, belonging to the institution), Michal JANÁČ (203 Czech Republic) and Pavel JURAJDA (203 Czech Republic)

Edition

Freshwater Biology, Hoboken, Wiley, 2016, 0046-5070

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10617 Marine biology, freshwater biology, limnology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.255

RIV identification code

RIV/00216224:14310/16:00091253

Organization unit

Faculty of Science

DOI

UT WoS

000376600100013

Keywords in English

fish larvae; Gobiidae; host-parasite interaction; invasive species; Unionidae

Tags

Tags

International impact, Reviewed
Změněno: 11/12/2019 15:06, Mgr. Marie Šípková, DiS.

Abstract

V originále

Introduction of an exotic species has the potential to alter interactions between fish and bivalves; yet our knowledge in this field is limited, not least by lack of studies involving fish early life stages (ELS). 2. Here, for the first time, we examine glochidial infection of fish ELS by native and exotic bivalves in a system recently colonised by two exotic gobiid species (round goby Neogobius melanostomus, tubenose goby Proterorhinus semilunaris) and the exotic Chinese pond mussel Anodonta woodiana. 3. The ELS of native fish were only rarely infected by native glochidia. By contrast, exotic fish displayed significantly higher native glochidia prevalence and mean intensity of infection than native fish (17 versus 2% and 3.3 versus 1.4 respectively), inferring potential for a parasite spillback/ dilution effect. Exotic fish also displayed a higher parasitic load for exotic glochidia, inferring potential for invasional meltdown. Compared to native fish, presence of gobiids increased the total number of glochidia transported downstream on drifting fish by approximately 900%. 4. We show that gobiid ELS are a novel, numerous and ‘attractive’ resource for unionid glochidia. As such, unionids could negatively affect gobiid recruitment through infection-related mortality of gobiid ELS and/or reinforce downstream unionid populations through transport on drifting gobiid ELS. These implications go beyond what is suggested in studies of older life stages, thereby stressing the importance of an holistic ontogenetic approach in ecological studies

Links

GBP505/12/G112, research and development project
Name: ECIP - Evropské centrum ichtyoparazitologie
Investor: Czech Science Foundation