The effect of water turbidity on prey consumption and female feeding patterns in African turquoise killifish
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00135847" target="_blank" >RIV/00216224:14310/24:00135847 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1111/eff.127744" target="_blank" >https://doi.org/10.1111/eff.127744</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/eff.12774" target="_blank" >10.1111/eff.12774</a>
Alternative languages
Result language
angličtina
Original language name
The effect of water turbidity on prey consumption and female feeding patterns in African turquoise killifish
Original language description
Water turbidity alters prey detectability and prey selection by a predator. In dimorphic mesopredators, the effect of water turbidity on foraging success may be sex specific, primarily due to sex differences in reproductive allotment, body size and vulnerability to predation. To experimentally test the effect of turbidity on prey consumption with respect to sex, we used turquoise killifish (Nothobranchius furzeri), a small fish from ephemeral savanna pools in southeast Africa that vary widely in turbidity. Large males possess conspicuous nuptial coloration while females are smaller and drab. Vision is assumed to be a fundamental sense for turquoise killifish, despite often living in very turbid water. As mesopredators, killifish regulate the invertebrate community in ephemeral pools. We tested the consumption of bloodworms (benthic and red-coloured) and glassworms (pelagic and transparent) under clear (<1NTU) and turbid (320 NTU) water conditions. We found that turquoise killifish maintained their overall foraging success irrespective of turbidity. In both the clear and turbid water, the females consumed three times more food than males relative to their body mass. This likely stems from the females' high nutritional demands due to daily reproduction. It also suggests that females are not risk-aversive in clear water despite their smaller size. Water turbidity affected the type of prey consumed by turquoise killifish and demonstrated its potential to affect the community structure of invertebrate species in ephemeral pools.
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
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
Ecology of Freshwater Fish
ISSN
0906-6691
e-ISSN
1600-0633
Volume of the periodical
33
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
„e12774“
UT code for WoS article
001179491500001
EID of the result in the Scopus database
2-s2.0-85186855337