Sexual size dimorphism of two common European percid fish: linkage with spatial distribution and diet.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00557050" target="_blank" >RIV/60077344:_____/22:00557050 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/22:10454792
Result on the web
<a href="https://doi.org/10.1007/s10750-022-04844-6" target="_blank" >https://doi.org/10.1007/s10750-022-04844-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10750-022-04844-6" target="_blank" >10.1007/s10750-022-04844-6</a>
Alternative languages
Result language
angličtina
Original language name
Sexual size dimorphism of two common European percid fish: linkage with spatial distribution and diet.
Original language description
Many fish species exhibit female-biased size dimorphism that may lead to spatial segregation of sexes. We selected two common European percids (Percidae, European perch Perca fluviatilis and ruffe Gymnocephalus cernua) differing in total body size, reproduction mode, habitat use and diurnal activity, to test whether they display size dimorphism and its effect on habitat use and diet. Females were significantly larger than equally old males (by 76% in perch, 23% in ruffe). No differences in habitat use by sexes were found along depth and longitudinal gradients of reservoir or between inshore and offshore habitats. Perch females had fuller guts, but both sexes were equally likely to consume same prey items (Leptodora kindtii, Daphnia spp., Chironomidae larvae, fish). Both sexes of ruffe had similar stomachs fullness, but females preferred L. kindtii and males Asellus aquaticus. In summary, perch and ruffe show strong female-biased size dimorphism, but sexes do not segregate spatially. Their unequal sex-specific dietary demands are satisfied by higher feeding rate of female perch and by preference for different prey items in ruffe. The magnitude of dimorphism was related to species body size and reproduction mode being larger in larger species and in total spawner (perch).
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
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
849
Issue of the periodical within the volume
9
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
19
Pages from-to
2009-2027
UT code for WoS article
000780287500002
EID of the result in the Scopus database
2-s2.0-85127469067