Influence of Zooplankton and Environmental Factors on Clear-Water Phase in Lake Paldang, South Korea

Datos Bibliográficos

ID15513857
AutoresYoun-Bo Sim (0000-0003-2317-8146, Konkuk University), Myeong Seop Byeon (National Institute of Environmental Research), Keonhee Kim (0000-0002-5725-1447, Konkuk University), Soonju Yu (0000-0001-9265-1123, National Institute of Environmental Research), Soon Ju Yu (National Institute of Environmental Research), Jong Kwon Im (0000-0003-3994-5127, National Institute of Environmental Research, autor de correspondencia)
Año2021
Volumen18
Número13
Páginas7205-7205
Fecha de publicación2021-07-05
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaInternational Journal of Environmental Research and Public Health (JOURNAL)
Identificadores de la revistaISSN: 1661-7827 • E-ISSN: 1660-4601
EditorialMultidisciplinary Digital Publishing Institute (PUBLISHER • CH)
DOI10.3390/ijerph18137205
PMID34281142
OpenAlexW3178449815
IdiomaEN
Referencias citadas32

Lake Paldang is a complex water system with both fluvial and lacustrine characteristics and the largest artificial dam lake in South Korea. In this study, the different occurrence patterns and causes of the clear-water phase (CWP) were investigated using water quality and hydrological factors at four sites in Lake Paldang. Among the environmental and other factors associated with CWP occurrence, secchi depth and turbidity exhibited significant correlations with precipitation, hydraulic retention time (HRT), and individual and relative abundance (RA) of zooplankton (Cladocera) ( p < 0.01). Hence, a change in the HRT because of precipitation could alter the CWP. The Cladocera individuals and RA showed significant correlations with the water temperature, indicating that the emergence of Cladocera in spring as the water temperature rises could cause the CWP. Sensitivity assessments conducted using Bayesian models demonstrated different CWP occurrence sensitivity relationships for the river-type, lake-type, and shallow and deep sites. Turbidity, secchi depth, and zooplankton factors also showed sensitive relationships with CWP occurrence for all sites. The sensitivity to precipitation and HRT was higher in the river-type sites. The lake-type sites, with common Cladocera emergence and long HRT, favored CWP occurrence. Thus, CWP occurrence was dependent on the site characteristics and climate conditions

Biology · Cladocera · Geography · Hydrology (agriculture · Precipitation · Turbidity · Water level · Water quality · Zooplankton · Aquatic Ecosystems and Phytoplankton Dynamics · Environmental Science · Fish Ecology and Management Studies · Water Quality and Pollution Assessment · Ecology · Geology