낙동강 중•하류에서 표층 시료와 수직 예망 시료의 동물플랑크톤 군집 구조 차이 비교 = Differences in Zooplankton Community Structure between Surface Water and Vertical Integrated Water in Middle and Down Stream of Nakdong River

다국어 초록 (Multilingual Abstract)

Zooplankton are primary consumers in the food web connecting primary producers and predators such as small fish, playing an important role in energy transfer in aquatic ecosystems. Therefore, it is essential to understand the zooplankton community structure in material cycle and energy flow in aquatic ecosystems. Zooplankton in large rivers with a low flow rate would distribute vertically as in lakes. In this study, we collected zooplankton by surface water filtration and vertical haul method with 64 µm-mesh plankton net at three stations (ND-1, ND-2, ND-3) in Nakdong River fortnightly from June 2018 to December 2019. Species composition and individual densities were analyzed. All three stations showed differences in relative abundance of zooplankton groups between surface water and vertical integrated water, with the largest difference shown in the deepest station, ND-2. In vertically integrated water at ND-2, the relative abundance of rotifera was low by a maximum of 25% and that of cladocera was high by a maximum of 22% compared to surface water samples. These results indicate that surface water filtration method is not enough to represent the community structure of zooplankton compared to the vertical haul method in large rivers.

참고문헌 (Reference)

1 최장한 ; 김대진 ; 서호영, "여름 남해 서부 해역에 출현하는 수표성 동물플랑크톤에 미치는 환경요인" 한국환경생물학회 38 (38): 461-475, 2020

2 오혜지 ; 장광현 ; 정현기 ; 고순미 ; 나긍환 ; 김현우, "담수생태계 특성을 고려한 동물플랑크톤 정량 조사법의 비교와 활용" 한국수생태학회 52 (52): 231-244, 2019

3 Saler, S., "Zooplankton of Hancağız dam lake" 8 (8): 1-7, 2014

4 Baranyi, C., "Zooplankton biomass and community structure in a Danube river floodplain system : Effects of hydrology" 47 : 473-482, 2002

5 Grosbois, G., "Zooplankton allochthony is spatially heterogeneous in a boreal lake" 62 (62): 474-490, 2017

6 Hébert, M. P., "Widespread agrochemicals differentially affect zooplankton biomass and community structure" 31 (31): e02423-, 2021

7 주기재 ; Kwang-SeukJeong ; Hyun-WooKim ; Kwang-HyeonChang, "Vertical Distribution of Zooplankton in the Regulated River(Nakdong River)" 한국수생태학회 35 (35): 320-325, 2002

8 Lampert, W. E., "Ultimate causes of diel vertical migration of zooplankton : New evidence for the predator-avoidance hypothesis" 39 : 79-88, 1993

9 Lomartire, S., "The key role of zooplankton in ecosystem services : A perspective of interaction between zooplankton and fish recruitment" 129 : 107867-, 2021

10 Etile, R. N. D., "Spatio-temporal variations of the zooplankton abundance and composition in a West African tropical coastal lagoon(Grand-Lahou, Cote d’Ivoire)" 624 (624): 171-189, 2009

11 Chang, K. H., "Seasonal and spatial distribution of two Bosmina species (B. longirostris and B. fatalis) in lake Suwa, Japan: Its relation to the predator Leptodora" 4 : 47-52, 2003

12 May, L., "Rotifer sampling-A complete species list from on visit?" 134 : 117-120, 1986

13 Lee, K. L., "Response of epilithic diatom assemblages to weir construction on the Nakdong river, Republic of Korea" 126 : 107711-, 2021

14 Gabaldón, C., "Repeated flood disturbance enhances rotifer dominance and diversity in a zooplankton community of a small dammed mountain pond" 76 (76): 292-304, 2017

15 Kruk, M., "Predicting the effects of winter water warming in artificial lakes on zooplankton and its environment using combined machine learning models" 12 (12): 1-14, 2022

16 Speirs, D. C., "Population persistence in rivers and estuaries" 82 (82): 1219-1237, 2001

17 Kim, D. K., "Patterning zooplankton communities in accordance with annual climatic conditions in regulated river system(Nakdong river, South Korea)" 97 : 55-72, 2012

18 Wetzel, R. G., "Limnological analyses" Springer-Verlag New York Inc 1990

19 Ko, E. J., "Impact of river-reservoir hybrid system on zooplankton community and river connectivity" 14 (14): 5184-, 2022

20 Wojtal, A., "Horizontal migration of zooplankton in a littoral zone of the lowland Sulejow reservoir (Central Poland)" 506-509 (506-509): 339-346, 2003

21 Rosenzweig, M. L., "Habitat selection and population interactions : The search for mechanisms" 137 : 5-28, 1991

22 Paquette, C., "Environmental drivers of taxonomic and functional variation in zooplankton diversity and composition in freshwater lakes across Canadian continental watersheds" 67 : 1081-1097, 2022

23 Lee, H. J., "Effects of weir construction on phytoplankton assemblages and water quality in a large river system" 15 (15): 2348-, 2018

24 김한순 ; 이재학, "Diversity of phytoplankton from the Nakdong River, South Korea: Euglenophytes" 한국생태학회 46 (46): 99-110, 2022

25 Kim, S. K., "Differences in the vertical distribution of two cladoceran species in the Nakdong river estuary, South Korea" 12 (12): 2154-, 2020

26 Park, H. K., "Deciphering the key factors determining spatio-temporal heterogeneity of cyanobacterial bloom dynamics in the Nakdong river with consecutive large weirs" 755 (755): 143079-, 2021

27 Loose, C. J., "Chemically-induced diel vertical migration in Daphnia : A new bioassay for kairomones exuded by fish" 126 (126): 329-337, 1993

28 Ministry of Environment(ME)., "Biomonitoring survey and assessment manual"

29 Fernando, C. H., "A guide to tropical freshwater zooplankton-identification, ecology and impact on fisheries" Backhuys Publishers Leiden 2002

30 임란영 ; 김지윤 ; 최종윤 ; 도윤호 ; 주기재, "4대강 사업 후 낙동강 중·하류의 하중도와 제외지 지형변화" 한국수생태학회 48 (48): 188-194, 2015