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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Ecology of Freshwater Fish

ISSN

0906-6691

e-ISSN

1600-0633

Svazek periodika

32

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

783-794

Kód UT WoS článku

001030845700001

EID výsledku v databázi Scopus

2-s2.0-85164193022