Diel changes in vertical and horizontal distribution of cladocerans in two deep lakes during early and late summer.

0555208 - BC 2022 RIV NL eng J - Článek v odborném periodiku
Antón-Pardo, Maria - Muška, Milan - Jůza, Tomáš - Vejříková, Ivana - Vejřík, Lukáš - Blabolil, Petr - Čech, Martin - Draštík, Vladislav - Frouzová, Jaroslava - Holubová, Michaela - Říha, Milan - Sajdlová, Zuzana - Šmejkal, Marek - Peterka, Jiří
Diel changes in vertical and horizontal distribution of cladocerans in two deep lakes during early and late summer.
Science of the Total Environment. Roč. 751, Jan (2021), č. článku 141601. ISSN 0048-9697. E-ISSN 1879-1026
Grant CEP: GA MŠMT(CZ) EF16_025/0007417
Institucionální podpora: RVO:60077344
Klíčová slova: Zooplankton * Diel vertical migration * Diel horizontal migration * Fish * Submerged vegetation
Obor OECD: Ecology
Impakt faktor: 10.754, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.scitotenv.2020.141601

Temporal and spatial heterogeneity in the distribution of cladocerans in lakes could be caused by abiotic (wind, water currents) and biotic factors (reproduction, food resources, predation). Diel horizontal and vertical distribution of cladoceran assemblages was studied in two deep lakes (Milada and Most Lakes, Czech Republic) in early (June) and late (September) summer. The objectivewas to study diel verticalmigration (DVM) and diel horizontal migration (DHM) of cladocerans under conditions of different macrophyte cover in littoral areas (rich in Milada Lake, poor in Most Lake) and fish assemblages (non-specialised planktivorous species in Milada Lake, and abundant planktivorous fish maraena whitefish, Coregonus maraena in open water habitats in Most Lake). Temporal variations in cladoceran assemblages were reported in both lakes in the two sampling periods. DVMwas observed in the two lakes, performed by themost vulnerable species to fish predation (the larger Daphnia spp.), but with different patterns (direct and reverse) probably linked with the local fish community and other biotic and abiotic factors in each lake. Horizontal movements were only observed in Most Lake: D. longispina increase its abundance in open waters at night compared to the littoral points., while Ceriodaphnia spp. showed the inverse pattern. In both lakes, higher densities were often found at night in surface layers, producing a great 'diurnal deficit': cladocerans remain undetected in some zones during the day (especially in the littoral areas) moving to surface layers at night.
Trvalý link: http://hdl.handle.net/11104/0329730