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Article

Comparison of Zooplankton Community Patterns in Relation to Sediment Disturbances by Dredging in the Guemho River, Korea

1
Department of Biological Science, Pusan National University, Busan 46241, Korea
2
K-water Institute, Daejeon 34350, Korea
3
Department of Environmental Education, Sunchon National University, Suncheon 57922, Korea
*
Authors to whom correspondence should be addressed.
Water 2020, 12(12), 3434; https://doi.org/10.3390/w12123434
Received: 2 November 2020 / Revised: 2 December 2020 / Accepted: 4 December 2020 / Published: 7 December 2020
(This article belongs to the Section Biodiversity and Functionality of Aquatic Ecosystems)
This study aimed to determine whether a swimming-type (planktonic and epiphytic) zooplankton group compared with the taxonomic group is appropriate to indicate the environmental changes caused by dredging. Water sampling in the littoral zone was conducted from 2007 to 2015, including the dredging period from October 2010 to June 2012. The water quality, number of species, population densities, and biotic indices were compared for both dredging period and grouping type. Nine of 11 water quality parameters were changed by the dredging period. The results showed that the rotifer and planktonic groups were consistently dominant. In all groups, population density was the lowest during the dredging period. After dredging, both the number of species and population density increased only in the epiphytic group. The dominant species, including Polyarthra vulgaris, Brachionus calyciflorus, B. rubens, and Bosmina longirostris, were included in the planktonic group for 9 years. Evenness did not differ, but diversity increased after the dredging period. This study showed that zooplankton could be used as a supplemental biological assessment tool for evaluating the impact of river dredging. View Full-Text
Keywords: disturbance; dominant species; biotic index; swimming-type disturbance; dominant species; biotic index; swimming-type
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MDPI and ACS Style

Ko, E.-J.; Kim, D.-K.; Jung, E.-S.; Heo, Y.-J.; Joo, G.-J.; Kim, H.-W. Comparison of Zooplankton Community Patterns in Relation to Sediment Disturbances by Dredging in the Guemho River, Korea. Water 2020, 12, 3434. https://doi.org/10.3390/w12123434

AMA Style

Ko E-J, Kim D-K, Jung E-S, Heo Y-J, Joo G-J, Kim H-W. Comparison of Zooplankton Community Patterns in Relation to Sediment Disturbances by Dredging in the Guemho River, Korea. Water. 2020; 12(12):3434. https://doi.org/10.3390/w12123434

Chicago/Turabian Style

Ko, Eui-Jeong, Dong-Kyun Kim, Eun-Song Jung, Yu-Ji Heo, Gea-Jae Joo, and Hyun-Woo Kim. 2020. "Comparison of Zooplankton Community Patterns in Relation to Sediment Disturbances by Dredging in the Guemho River, Korea" Water 12, no. 12: 3434. https://doi.org/10.3390/w12123434

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