Trophic ecology of two non-native cyprinid fish, the common carp Cyprinus carpio and the bleak Alburnus alburnus
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F24%3A43908214" target="_blank" >RIV/60076658:12520/24:43908214 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10750-024-05578-3" target="_blank" >https://doi.org/10.1007/s10750-024-05578-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10750-024-05578-3" target="_blank" >10.1007/s10750-024-05578-3</a>
Alternative languages
Result language
angličtina
Original language name
Trophic ecology of two non-native cyprinid fish, the common carp Cyprinus carpio and the bleak Alburnus alburnus
Original language description
The introduction of non-native fish species poses a significant threat to biodiversity. In Spain, the common carp Cyprinus carpio (Linnaeus, 1758) and the bleak Alburnus alburnus (Linnaeus, 1758) are both established and sometimes co-occurring non-native species. Here, we investigated the trophic ecology of these species using an integrative approach, combining dietary and stable isotope analyses, to understand seasonal variations in their feeding ecology and potential niche overlap. We found a variable pattern for the gonadosomatic index of the two species in spring and autumn, suggesting the occurrence of extended reproductive periods for both A. alburnus and C. carpio. The gut content and isotopic niche analyses showed seasonal niche shifts, as well as interspecific niche partitioning and potential feeding competition. Notably, we found remains of small fish in the gut of both species and one entire individual of Gambusia holbrooki (Girard, 1859) in the carp gut, highlighting the potential of both species to prey also upon native fish fry or juveniles. Moreover, A. alburnus showed an ontogenetic shift toward prey from higher trophic levels and from the littoral/benthic environment, while C. carpio showed an increase in the proportion of prey from the pelagic environment with size.
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
10618 - Ecology
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Hydrobiologia
ISSN
0018-8158
e-ISSN
1573-5117
Volume of the periodical
851
Issue of the periodical within the volume
17
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
18
Pages from-to
4231-4248
UT code for WoS article
001236082200002
EID of the result in the Scopus database
2-s2.0-85195133844