No effect of round goby Neogobius melanostomus colonisation on young-of-the-year fish density or microhabitat use

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F16%3A00459677" target="_blank" >RIV/68081766:_____/16:00459677 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10530-016-1165-7" target="_blank" >http://dx.doi.org/10.1007/s10530-016-1165-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10530-016-1165-7" target="_blank" >10.1007/s10530-016-1165-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

No effect of round goby Neogobius melanostomus colonisation on young-of-the-year fish density or microhabitat use

Popis výsledku v původním jazyce

The round goby Neogobius melanostomus has recently invaded several major freshwater systems in Europe and North America. Despite numerous studies predicting an impact on native fish assemblages, few have attempted to demonstrate it. In this case study, we monitored the effect of N. melanostomus colonisation on abundance and habitat utilisation of both young-of-the-year (YOY) native fish and YOY western tubenose goby Proterorhinus semilunaris in a typical, medium-sized European river. Colonisation by N. melanostomus had no apparent effect on either native fish abundance and species richness or P. semilunaris abundance. Moreover, after colonisation, both native fish and P. semilunaris occupied similar niches (i.e. microhabitats) to those occupied before colonisation. While niche use of YOY N. melanostomus and P. semilunaris overlapped significantly, YOY native fish utilised different habitats from the gobiids. We suggest that N. melanostomus did not compete for resources with YOY fish in our study area due to lack of niche overlap and/or surplus resources. As N. melanostomus rapidly dominated the fish assemblage at our site, we further suggest that utilisation of an empty niche, rather than competitive superiority, was the main factor facilitating its success.

Název v anglickém jazyce

No effect of round goby Neogobius melanostomus colonisation on young-of-the-year fish density or microhabitat use

Popis výsledku anglicky

The round goby Neogobius melanostomus has recently invaded several major freshwater systems in Europe and North America. Despite numerous studies predicting an impact on native fish assemblages, few have attempted to demonstrate it. In this case study, we monitored the effect of N. melanostomus colonisation on abundance and habitat utilisation of both young-of-the-year (YOY) native fish and YOY western tubenose goby Proterorhinus semilunaris in a typical, medium-sized European river. Colonisation by N. melanostomus had no apparent effect on either native fish abundance and species richness or P. semilunaris abundance. Moreover, after colonisation, both native fish and P. semilunaris occupied similar niches (i.e. microhabitats) to those occupied before colonisation. While niche use of YOY N. melanostomus and P. semilunaris overlapped significantly, YOY native fish utilised different habitats from the gobiids. We suggest that N. melanostomus did not compete for resources with YOY fish in our study area due to lack of niche overlap and/or surplus resources. As N. melanostomus rapidly dominated the fish assemblage at our site, we further suggest that utilisation of an empty niche, rather than competitive superiority, was the main factor facilitating its success.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP505%2F11%2F1768" target="_blank" >GAP505/11/1768: Nepůvodní hlaváčovité ryby: využití volné niky nebo ohrožení středoevropské ichtyofauny?</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Biological Invasions

ISSN

1387-3547

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

2333-2347

Kód UT WoS článku

000380117300018

EID výsledku v databázi Scopus

2-s2.0-84976644180