Evidence for responses in water chemistry and macroinvertebrates in a strongly acidified mountain stream

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F17%3A00480695" target="_blank" >RIV/86652079:_____/17:00480695 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077344:_____/17:00480695 RIV/00216208:11310/17:10364617

Výsledek na webu

<a href="http://dx.doi.org/10.1515/biolog-2017-0121" target="_blank" >http://dx.doi.org/10.1515/biolog-2017-0121</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/biolog-2017-0121" target="_blank" >10.1515/biolog-2017-0121</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence for responses in water chemistry and macroinvertebrates in a strongly acidified mountain stream

Popis výsledku v původním jazyce

A study of differences in the water chemistry and macroinvertebrate composition after a decade was performed in a strongly acidified mountain stream in the Brdy Mountains. In 1999 and again in 2010 we carried out monthly sampling of stream water and macroinvertebrates. We detected significantly lower concentrations of SO2−4, Ca2+, Mg2+, Na+, NH+4, Cl− and F− ions, reactive aluminium (R-Al) and its toxic form Aln+, and significantly higher concentrations of total organic carbon (TOC) between 1999 and 2010, possibly indicating recovery of this stream from acidification, even though there was no significant difference in pH. The signs of a biological recovery from acidification included the first occurrences of less acid-tolerant macroinvertebrate taxa: the stonefly Diura bicaudata and the caddisfly Rhyacophila sp. We observed higher taxonomic richness in 2010 compared to 1999 and found several species typical of standing waters plus a few rare species. This could partly be attributed to the effects of logging in the catchment. If recovery from acidification continues, we expect a return of other less acid-tolerant taxa to this strongly acidified stream.

Název v anglickém jazyce

Evidence for responses in water chemistry and macroinvertebrates in a strongly acidified mountain stream

Popis výsledku anglicky

A study of differences in the water chemistry and macroinvertebrate composition after a decade was performed in a strongly acidified mountain stream in the Brdy Mountains. In 1999 and again in 2010 we carried out monthly sampling of stream water and macroinvertebrates. We detected significantly lower concentrations of SO2−4, Ca2+, Mg2+, Na+, NH+4, Cl− and F− ions, reactive aluminium (R-Al) and its toxic form Aln+, and significantly higher concentrations of total organic carbon (TOC) between 1999 and 2010, possibly indicating recovery of this stream from acidification, even though there was no significant difference in pH. The signs of a biological recovery from acidification included the first occurrences of less acid-tolerant macroinvertebrate taxa: the stonefly Diura bicaudata and the caddisfly Rhyacophila sp. We observed higher taxonomic richness in 2010 compared to 1999 and found several species typical of standing waters plus a few rare species. This could partly be attributed to the effects of logging in the catchment. If recovery from acidification continues, we expect a return of other less acid-tolerant taxa to this strongly acidified stream.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Biologia

ISSN

0006-3088

e-ISSN

—

Svazek periodika

72

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

10

Strana od-do

1049-1058

Kód UT WoS článku

000413328100011

EID výsledku v databázi Scopus

2-s2.0-85032740760