J 2017

Response of benthic macroinvertebrate assemblages to round (Neogobius melanostomus, Pallas 1814) and tubenose (Proterorhinus semilunaris, Heckel 1837) goby predation pressure

MIKL, Libor, Zdeněk ADÁMEK, Lucie VŠETIČKOVÁ, Michal JANÁČ, Kevin ROCHE et. al.

Basic information

Original name

Response of benthic macroinvertebrate assemblages to round (Neogobius melanostomus, Pallas 1814) and tubenose (Proterorhinus semilunaris, Heckel 1837) goby predation pressure

Authors

MIKL, Libor (203 Czech Republic, guarantor, belonging to the institution), Zdeněk ADÁMEK (203 Czech Republic), Lucie VŠETIČKOVÁ (203 Czech Republic), Michal JANÁČ (203 Czech Republic), Kevin ROCHE (203 Czech Republic), Luděk ŠLAPANSKÝ (203 Czech Republic, belonging to the institution) and Pavel JURAJDA (203 Czech Republic)

Edition

Hydrobiologia, DORDRECHT, Springer, 2017, 0018-8158

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.165

RIV identification code

RIV/00216224:14310/17:00095895

Organization unit

Faculty of Science

DOI

UT WoS

000388173000016

Keywords in English

Invasive species; Gobies; Macroinvertebrates; Impact; European rivers; diet

Tags

Tags

International impact, Reviewed
Změněno: 19/12/2019 15:40, Mgr. Marie Šípková, DiS.

Abstract

V originále

One of the main assumed impacts of invasive gobies is predation on benthic macroinvertebrates. Despite numerous dietary studies, however, quantitative evaluations of impact in European river systems are scarce. Here, we investigate the impact of tubenose (Proterorhinus semilunaris, Heckel 1837) and round (Neogobius melanostomus, Pallas 1814) gobies on macroinvertebrates in a lowland river (River Dyje, Czech Republic) by allowing and preventing gobiid access to rip-rap substrate naturally colonised by invertebrates at two sites (Site 1 tubenose goby only, Site 2 tubenose and round gobies). Gobies had a negative impact on invertebrates at both sites, with overall invertebrate density reduced by 15% (ca. 17.9 g m2 per year) at Site 1 and 36% (ca. 23.6 g m2 per year) at Site 2. Both species showed increased impact in summer and ingested larger invertebrates preferentially, resulting in an overall reduction in invertebrate body size. Tubenose gobies had a significant impact on Annelida, Gastropoda, Crustacea and Ephemeroptera nymphs, while tubenose and round goby together impacted Annelida, Bivalvia (Dreissena), Gastropoda, Crustacea, Ephemeroptera nymphs, Odonata nymphs and Chironomidae larvae. Our results confirm that round and tubenose gobies can have a significant negative impact on aquatic invertebrate density and community composition.