Aquatic annelids of the subsurface interstitial zone in the
Western Carpathians spring fens

a 2017

Aquatic annelids of the subsurface interstitial zone in the Western Carpathians spring fens

SCHENKOVÁ, Jana, Martina BÍLKOVÁ, Vendula POLÁŠKOVÁ, Michal HORSÁK, Jiří SCHLAGHAMERSKÝ et. al.

Základní údaje

Originální název

Aquatic annelids of the subsurface interstitial zone in the Western Carpathians spring fens

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SCHENKOVÁ, Jana, Martina BÍLKOVÁ, Vendula POLÁŠKOVÁ, Michal HORSÁK a Jiří SCHLAGHAMERSKÝ

Vydání

10 Symposium for European Freshwater Sciences 2017, 2017

Další údaje

Typ výsledku

Konferenční abstrakt

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není předmětem státního či obchodního tajemství

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Příznaky

Mezinárodní význam

Změněno: 10. 7. 2017 17:12, doc. RNDr. Jana Schenková, Ph.D.

Anotace

V originále

Spring fens in the Western Carpathians represent groundwater-fed micro-wetlands variable in their water chemistry, ranging from calcium-poor acidic fens with a tendency towards ombrotrophy to extremely calcium-rich tufa-forming fens. These highly vulnerable habitats host specific assemblages of aquatic annelids capable to inhabit both purely aquatic mesohabitats and water-logged soil mesohabitats. To explore the ability of individual species to penetrate into water-logged substratum, we studied the vertical distribution of aquatic annelids in the subsurface interstitial zone (0–15 cm depth). Twenty seven spring fens in the Western Carpathians situated within the Czech and Slovak Republics were sampled in spring and autumn of either 2015 or 2016. We explored sites covering a major environmental gradient: 9 extremely mineral-rich fens with tufa formation, 8 mineral-rich fens without tufa formation, 5 mineral-rich Sphagnum fens and 5 mineral-poor Sphagnum fens. Five cores (17 cm2 each, 15 cm depth) were taken from water-logged mesohabitats (but without a surface water layer) at each site. Each core was subdivided into 3-cm layers. Annelids were extracted using the wet funnel method (without heating) and specimens were identified alive. In total, 1,135 individuals of aquatic Clitellata and 7,926 of Aeolosomatidae were collected from spring samples; autumn samples are being processed. The highest numbers of aquatic annelids were recorded in mineral-poor Sphagnum fens, the lowest in mineral-rich fens with tufa. The first 3 cm of substratum were inhabited by 54% of clitellates and 47% of aeolosomatids; their numbers decreased almost linearly with depth. Median depths at which individual species occurred varied from 1.9 to 10 cm, but most species preferred the upper 3 cm. Taking into consideration annelid life cycles, we expect seasonal differences in vertical distribution. Preliminary results show that of 35 aquatic species previously reported from aquatic habitats (pools, spring brooks) of the same set of sampling sites, 18 were also recorded in the subsurface interstitial zone. These species seem to be well pre-adapted to survive a decrease of the water-table, which is the major threat to spring fen organisms. The study was supported by GA15-15548S and MUNI/A/1325/2015.

Návaznosti

GA15-15548S, projekt VaV

Název: Kroužkovci izolovaných mikro-mokřadů: od vody až po půdu

Investor: Grantová agentura ČR, Kroužkovci izolovaných mikro-mokřadů: od vody až po půdu

MUNI/A/1325/2015, interní kód MU

Název: Analýzy diverzity biologických systémů různých úrovní a na různých škálách prostředí (Akronym: BIDA5)

Investor: Masarykova univerzita, Analýzy diverzity biologických systémů různých úrovní a na různých škálách prostředí, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

SCHENKOVÁ, Jana, Martina BÍLKOVÁ, Vendula POLÁŠKOVÁ, Michal HORSÁK a Jiří SCHLAGHAMERSKÝ. Aquatic annelids of the subsurface interstitial zone in the Western Carpathians spring fens. In 10 Symposium for European Freshwater Sciences 2017. 2017.

@proceedings{1385058,
   author = {Schenková, Jana and Bílková, Martina and Polášková, Vendula and Horsák, Michal and Schlaghamerský, Jiří},
   booktitle = {10 Symposium for European Freshwater Sciences 2017},
   title = {Aquatic annelids of the subsurface interstitial zone in the Western Carpathians spring fens},
   url = {http://www.sefs10.cz/sites/default/files/images/SEFS%20abstract%20book.pdf},
   year = {2017}
}

TY  - CONF
ID  - 1385058
AU  - Schenková, Jana - Bílková, Martina - Polášková, Vendula - Horsák, Michal - Schlaghamerský, Jiří
PY  - 2017
TI  - Aquatic annelids of the subsurface interstitial zone in the Western Carpathians spring fens
UR  - http://www.sefs10.cz/sites/default/files/images/SEFS%20abstract%20book.pdf
N2  - Spring fens in the Western Carpathians represent groundwater-fed micro-wetlands variable in their water chemistry, ranging from calcium-poor acidic fens with a tendency towards ombrotrophy to extremely calcium-rich tufa-forming fens. These highly vulnerable habitats host specific assemblages of aquatic annelids capable to inhabit both purely aquatic mesohabitats and water-logged soil mesohabitats. To explore the ability of individual species to penetrate into water-logged substratum, we studied the vertical distribution of aquatic annelids in the subsurface interstitial zone (0–15 cm depth). Twenty seven spring fens in the Western Carpathians situated within the Czech and Slovak Republics were sampled in spring and autumn of either 2015 or 2016. We explored sites covering a major environmental gradient: 9 extremely mineral-rich fens with tufa formation, 8 mineral-rich fens without tufa formation, 5 mineral-rich Sphagnum fens and 5 mineral-poor Sphagnum fens. Five cores (17 cm2 each, 15 cm depth) were taken from water-logged mesohabitats (but without a surface water layer) at each site. Each core was subdivided into 3-cm layers. Annelids were extracted using the wet funnel method (without heating) and specimens were identified alive. In total, 1,135 individuals of aquatic Clitellata and 7,926 of Aeolosomatidae were collected from spring samples; autumn samples are being processed. The highest numbers of aquatic annelids were recorded in mineral-poor Sphagnum fens, the lowest in mineral-rich fens with tufa. The first 3 cm of substratum were inhabited by 54% of clitellates and 47% of aeolosomatids; their numbers decreased almost linearly with depth. Median depths at which individual species occurred varied from 1.9 to 10 cm, but most species preferred the upper 3 cm. Taking into consideration annelid life cycles, we expect seasonal differences in vertical distribution. Preliminary results show that of 35 aquatic species previously reported from aquatic habitats (pools, spring brooks) of the same set of sampling sites, 18 were also recorded in the subsurface interstitial zone. These species seem to be well pre-adapted to survive a decrease of the water-table, which is the major threat to spring fen organisms. The study was supported by GA15-15548S and MUNI/A/1325/2015.
ER  -

SCHENKOVÁ, Jana, Martina BÍLKOVÁ, Vendula POLÁŠKOVÁ, Michal HORSÁK a Jiří SCHLAGHAMERSKÝ. Aquatic annelids of the subsurface interstitial zone in the Western Carpathians spring fens. In \textit{10 Symposium for European Freshwater Sciences 2017}. 2017.

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