Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia

Harpacticoids are an important component of meiofaunal assemblages in hyporheic zone. The goal of this study was to investigate distribution patterns of interstitial harpacticoid assemblages from four pre-Alpine streams originating in the Dinaric Karst and flowing into the Ljubljanica River. The sa...

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Main Authors: Nataša Mori, Anton Brancelj
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2021-06-01
Series:Natura Sloveniae
Subjects:
Online Access:https://journals.uni-lj.si/NaturaSloveniae/article/view/16232
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author Nataša Mori
Anton Brancelj
author_facet Nataša Mori
Anton Brancelj
author_sort Nataša Mori
collection DOAJ
description Harpacticoids are an important component of meiofaunal assemblages in hyporheic zone. The goal of this study was to investigate distribution patterns of interstitial harpacticoid assemblages from four pre-Alpine streams originating in the Dinaric Karst and flowing into the Ljubljanica River. The sampling was conducted in 2002 at 12 locations distributed at a distance of approximately 1 km along each stream including tributaries, at a depth of 30–60 cm in the wetted channel (three sites per location) and depths from 65 to 160 cm on the stream banks (one site per location) using a Bou-Rouch pump. Concurrently, the interstitial water’s physical and chemical parameters were measured at two sites within each location (streambed, streambank). A total of 24 harpacticoid species were found, 12 of which were stygobionts (i.e., species living exclusively in groundwaters). Among them, two previously unknown species for science were found. Harpacticoid assemblage composition, with the exception of those from the Iška stream, did not differ significantly between the streams, indicating interconnectivity of the interstitial milieu. Sediment structure, amounts of particulate organic matter, conductivity and redox conditions seemed to have certain impacts, indicating the importance of hydrological and geological settings for harpacticoid assemblages.
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language English
publishDate 2021-06-01
publisher University of Ljubljana Press (Založba Univerze v Ljubljani)
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spelling doaj-art-ed790b4e560b4f5f84389e47d7a21f592025-01-29T20:47:23ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Natura Sloveniae1580-08141854-30812021-06-0123110.14720/ns.23.1.5-20Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central SloveniaNataša Mori0Anton Brancelj1National Institute of Biology, Večna pot 111, SI-1000 Ljubljana, SloveniaNational Institute of Biology, Večna pot 111, SI-1000 Ljubljana, Slovenia, University of Nova Gorica, Vipavska c. 13, SI-5000 Nova Gorica, Slovenia Harpacticoids are an important component of meiofaunal assemblages in hyporheic zone. The goal of this study was to investigate distribution patterns of interstitial harpacticoid assemblages from four pre-Alpine streams originating in the Dinaric Karst and flowing into the Ljubljanica River. The sampling was conducted in 2002 at 12 locations distributed at a distance of approximately 1 km along each stream including tributaries, at a depth of 30–60 cm in the wetted channel (three sites per location) and depths from 65 to 160 cm on the stream banks (one site per location) using a Bou-Rouch pump. Concurrently, the interstitial water’s physical and chemical parameters were measured at two sites within each location (streambed, streambank). A total of 24 harpacticoid species were found, 12 of which were stygobionts (i.e., species living exclusively in groundwaters). Among them, two previously unknown species for science were found. Harpacticoid assemblage composition, with the exception of those from the Iška stream, did not differ significantly between the streams, indicating interconnectivity of the interstitial milieu. Sediment structure, amounts of particulate organic matter, conductivity and redox conditions seemed to have certain impacts, indicating the importance of hydrological and geological settings for harpacticoid assemblages. https://journals.uni-lj.si/NaturaSloveniae/article/view/16232microcrustaceaspecies-environment relationshipbiodiversitydistributiongroundwater
spellingShingle Nataša Mori
Anton Brancelj
Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia
Natura Sloveniae
microcrustacea
species-environment relationship
biodiversity
distribution
groundwater
title Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia
title_full Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia
title_fullStr Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia
title_full_unstemmed Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia
title_short Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia
title_sort harpacticoid assemblages copepoda harpacticoida in the hyporheic zone of four streams in central slovenia
topic microcrustacea
species-environment relationship
biodiversity
distribution
groundwater
url https://journals.uni-lj.si/NaturaSloveniae/article/view/16232
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AT antonbrancelj harpacticoidassemblagescopepodaharpacticoidainthehyporheiczoneoffourstreamsincentralslovenia