Macroinvertebrate assemblages in acidified mountain lake inflows differs from lake outflows: the influence of lakes.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00563709" target="_blank" >RIV/60077344:_____/22:00563709 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/22:10453728 RIV/00023272:_____/22:10135638

Výsledek na webu

<a href="https://doi.org/10.1007/s11756-022-01144-1" target="_blank" >https://doi.org/10.1007/s11756-022-01144-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11756-022-01144-1" target="_blank" >10.1007/s11756-022-01144-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Macroinvertebrate assemblages in acidified mountain lake inflows differs from lake outflows: the influence of lakes.

Popis výsledku v původním jazyce

This synoptic study of inflows and outflows of eight atmospherically acidified glacial lakes in the Bohemian Forest, the Czech Republic and Germany, investigated how the presence of lakes on headwater streams changes the water chemistry and concurrently macroinvertebrate assemblages. The extent of changes in water chemistry was assessed in relation to lake morphometry (max. depth, lake volume and area, water residence time (WRT)). The inflows exhibited a wide pH gradient, from 3.9-6.3, while pH of outflows ranged from 4.6-5.9. Lakes generally increased the temperature, reduced the acidity of outflows and were net sinks for dissolved nutrients but sources of their particulate forms and N-NH4+. However, we only found significant relationships between N-NH4+ and WRT., other relationships between differences in physico-chemical parameters and lake morphometry were nonsignificant. Comparisons of macroinvertebrate groups indicate that the numbers of Plecoptera, Trichoptera, and Diptera taxa were significantly higher in inflows than in outflows. Plecoptera dominated in inflows whereas the abundance of Ephemeroptera was significantly higher in outflows. The higher abundance of Diptera in outflows was due to the family Simuliidae, probably benefiting from the supply of food (seston) from lakes. We found a significant positive relationship between pH and the number of macroinvertebrate taxa in inflows, but not in outflows. This lack of significancy was most probably caused by the low number of sites (7), the narrow pH range, and several factors that influenced outflows: higher temperature, altered water chemistry, the input of lake taxa, and higher content of food.

Název v anglickém jazyce

Macroinvertebrate assemblages in acidified mountain lake inflows differs from lake outflows: the influence of lakes.

Popis výsledku anglicky

This synoptic study of inflows and outflows of eight atmospherically acidified glacial lakes in the Bohemian Forest, the Czech Republic and Germany, investigated how the presence of lakes on headwater streams changes the water chemistry and concurrently macroinvertebrate assemblages. The extent of changes in water chemistry was assessed in relation to lake morphometry (max. depth, lake volume and area, water residence time (WRT)). The inflows exhibited a wide pH gradient, from 3.9-6.3, while pH of outflows ranged from 4.6-5.9. Lakes generally increased the temperature, reduced the acidity of outflows and were net sinks for dissolved nutrients but sources of their particulate forms and N-NH4+. However, we only found significant relationships between N-NH4+ and WRT., other relationships between differences in physico-chemical parameters and lake morphometry were nonsignificant. Comparisons of macroinvertebrate groups indicate that the numbers of Plecoptera, Trichoptera, and Diptera taxa were significantly higher in inflows than in outflows. Plecoptera dominated in inflows whereas the abundance of Ephemeroptera was significantly higher in outflows. The higher abundance of Diptera in outflows was due to the family Simuliidae, probably benefiting from the supply of food (seston) from lakes. We found a significant positive relationship between pH and the number of macroinvertebrate taxa in inflows, but not in outflows. This lack of significancy was most probably caused by the low number of sites (7), the narrow pH range, and several factors that influenced outflows: higher temperature, altered water chemistry, the input of lake taxa, and higher content of food.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Biologia

ISSN

0006-3088

e-ISSN

1336-9563

Svazek periodika

77

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

2593-2607

Kód UT WoS článku

000820564500001

EID výsledku v databázi Scopus

2-s2.0-85133316395