The effect of littoral complexity on the diel distribution of early juvenile fish communities in temperate freshwater reservoirs

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00583571" target="_blank" >RIV/60077344:_____/23:00583571 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1111/eff.12740" target="_blank" >https://doi.org/10.1111/eff.12740</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/eff.12740" target="_blank" >10.1111/eff.12740</a>

Result language

angličtina

Original language name

The effect of littoral complexity on the diel distribution of early juvenile fish communities in temperate freshwater reservoirs

Original language description

The diel distribution of early juvenile fish communities from two temperate freshwater reservoirs that differed in cover of submerged aquatic vegetation was investigated. In the daytime, about 99.9% of the juvenile fish community from the plant-rich Zlutice Reservoir was found in the nearshore belt of submerged aquatic vegetation reaching an average abundance of similar to 7982 inds. 1000 m(-3). In contrast, in the pelagic habitat, few fish were found at day. In the plant-poor Rimov Reservoir, 98.9% of juveniles occupied the pelagic habitat during daytime and reached an average abundance of similar to 333 inds. 1000 m(-3). Vertical distribution of fish in the pelagic habitat in both water bodies was affected by steep thermal and oxygen stratification and no individuals occurred below 6 m depth. At night, 88.8% of the juvenile fish community from the plant-rich Zlutice Reservoir was in the pelagic habitat with an average abundance of similar to 1423 inds. 1000 m(-3). Their diel horizontal shifts were much more pronounced compared to the community from the Rimov Reservoir that reached an average nighttime pelagic abundance of similar to 523 inds. 1000 m(-3). Only 1.1% of the juvenile fish community in the Rimov Reservoir was found in the littoral during the daytime and 0.7% at night reaching an average daytime abundance of similar to 1688 inds. 1000 m(-3) and average nighttime time abundance of similar to 1664 inds. 1000 m(-3). This study indicates that if a well-developed littoral zone with abundant aquatic vegetation is present, early juvenile fish will perform diel horizontal movement in temperate stratified reservoirs.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

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

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ecology of Freshwater Fish

ISSN

0906-6691

e-ISSN

1600-0633

Volume of the periodical

32

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

783-794

UT code for WoS article

001030845700001

EID of the result in the Scopus database

2-s2.0-85164193022