The diet of Eurasian perch larvae in lakes with different zooplankton assemblages
Eurasian perch has a great ecological importance in freshwaters as it is often a dominating predatory fish in ecosystems. The knowledge of perch feeding patterns, strategies, and adaptivity to food environment in their early life stages is essential to understand its population development and dynam...
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2024
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/578450 2024-09-15T18:00:08+00:00 The diet of Eurasian perch larvae in lakes with different zooplankton assemblages Zingel, Priit Agasild, Helen Zagars, Matiss Feldmann, Tõnu Tuvikene, Arvo Zingel, Tiina Puncule, Linda Karus, Katrit 2024-06-27T13:45:07Z 181-193 application/pdf http://hdl.handle.net/10138/578450 eng eng Boreal Environment Research Publishing Board Boreal Environment Research 1239-6095 1797-2469 28 http://hdl.handle.net/10138/578450 Suomen ympäristökeskus CC BY 4.0 openAccess Artikkeli lehdessä 2024 ftunivhelsihelda 2024-08-21T23:48:04Z Eurasian perch has a great ecological importance in freshwaters as it is often a dominating predatory fish in ecosystems. The knowledge of perch feeding patterns, strategies, and adaptivity to food environment in their early life stages is essential to understand its population development and dynamics. It has been demonstrated that there exists a positive relationships between preferred prey availability and larval feeding success. We examined the diet of larval perch in their natural habitats of different zooplankton assemblages in three small lakes with varying ecological status. In each lake, both pelagial and littoral were studied. We found significant relation between zooplankton biomass in the lake and zooplankton biomass consumed by fish larvae. The most important food objects were crustaceans (Bosmina longirostris, Chydorus sphaericus). Ciliates were consumed only in one lake. Our results show that perch larvae are flexible in their choice of food and can adapt to different food environments. Article in Journal/Newspaper Boreal Environment Research HELDA – University of Helsinki Open Repository |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
description |
Eurasian perch has a great ecological importance in freshwaters as it is often a dominating predatory fish in ecosystems. The knowledge of perch feeding patterns, strategies, and adaptivity to food environment in their early life stages is essential to understand its population development and dynamics. It has been demonstrated that there exists a positive relationships between preferred prey availability and larval feeding success. We examined the diet of larval perch in their natural habitats of different zooplankton assemblages in three small lakes with varying ecological status. In each lake, both pelagial and littoral were studied. We found significant relation between zooplankton biomass in the lake and zooplankton biomass consumed by fish larvae. The most important food objects were crustaceans (Bosmina longirostris, Chydorus sphaericus). Ciliates were consumed only in one lake. Our results show that perch larvae are flexible in their choice of food and can adapt to different food environments. |
format |
Article in Journal/Newspaper |
author |
Zingel, Priit Agasild, Helen Zagars, Matiss Feldmann, Tõnu Tuvikene, Arvo Zingel, Tiina Puncule, Linda Karus, Katrit |
spellingShingle |
Zingel, Priit Agasild, Helen Zagars, Matiss Feldmann, Tõnu Tuvikene, Arvo Zingel, Tiina Puncule, Linda Karus, Katrit The diet of Eurasian perch larvae in lakes with different zooplankton assemblages |
author_facet |
Zingel, Priit Agasild, Helen Zagars, Matiss Feldmann, Tõnu Tuvikene, Arvo Zingel, Tiina Puncule, Linda Karus, Katrit |
author_sort |
Zingel, Priit |
title |
The diet of Eurasian perch larvae in lakes with different zooplankton assemblages |
title_short |
The diet of Eurasian perch larvae in lakes with different zooplankton assemblages |
title_full |
The diet of Eurasian perch larvae in lakes with different zooplankton assemblages |
title_fullStr |
The diet of Eurasian perch larvae in lakes with different zooplankton assemblages |
title_full_unstemmed |
The diet of Eurasian perch larvae in lakes with different zooplankton assemblages |
title_sort |
diet of eurasian perch larvae in lakes with different zooplankton assemblages |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/578450 |
genre |
Boreal Environment Research |
genre_facet |
Boreal Environment Research |
op_relation |
Boreal Environment Research 1239-6095 1797-2469 28 http://hdl.handle.net/10138/578450 Suomen ympäristökeskus |
op_rights |
CC BY 4.0 openAccess |
_version_ |
1810437255630684160 |