Prediction of ecological impact of two alien gobiids in habitat structures of differing complexity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F19%3A43899538" target="_blank" >RIV/60076658:12520/19:43899538 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1139/cjfas-2018-0346" target="_blank" >https://doi.org/10.1139/cjfas-2018-0346</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1139/cjfas-2018-0346" target="_blank" >10.1139/cjfas-2018-0346</a>
Alternative languages
Result language
angličtina
Original language name
Prediction of ecological impact of two alien gobiids in habitat structures of differing complexity
Original language description
Rapid expansion of round goby (Neogobius melanostomus) and western tubenose goby (Proterorhinus semilunaris) beyond their native ranges calls for urgent management action, particularly in localities with high introduction possibility of the species. We used a comparative functional response (FR) approach to forecast invader ecological impact. We compared their foraging efficiency in three habitat structures: sand, coarse gravel, and coarse gravel with an artificial plant. Both Neogobius melanostomus and Proterorhinus semilunaris showed type II FR in all habitats. Interspecific comparison showed similar handling times in both the gravel and gravel with artificial plant habitats, suggesting similar per capita impact. Intraspecific comparison showed significantly lower handling times of both predators on gravel substrates. Therefore, their ecological impact in such an environment could be higher. Neogobius melanostomus showed higher attack rates on sandy substrates compared with Proterorhinus semilunaris, while no significant differences were observed on other substrates. Our results highlight the importance of interacting factors in management of ecosystems with multiple invaders, as the elimination of invasive Neogobius melanostomus may lead to utilization of the empty niche by alien Proterorhinus semilunaris with similar ecological impact.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40103 - Fishery
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Canadian Journal of Fisheries and Aquatic Sciences
ISSN
0706-652X
e-ISSN
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Volume of the periodical
76
Issue of the periodical within the volume
11
Country of publishing house
CA - CANADA
Number of pages
8
Pages from-to
1954-1961
UT code for WoS article
000492728400004
EID of the result in the Scopus database
2-s2.0-85074040587