Journals Information
Environment and Ecology Research Vol. 11(2), pp. 240 - 248
DOI: 10.13189/eer.2023.110202
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Community Structure of Macrozoobenthos from Upstream to Downstream of Purba District, North Sumatra
Ika Rosenta Purba 1,*, Adrian Hartanto 2, Bagus Prio Prakoso 2
1 Department of Biology Education, Faculty of Teacher Training and Education, Universitas Simalungun, Pematang Siantar, North Sumatra 21142, Indonesia
2 Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, North Sumatra 20155, Indonesia
ABSTRACT
The community and composition of benthic macrofaunal species are determined in three sampling stations from upstream to downstream in Purba District. Sampling was performed in November 2021 during the rainy season. The results showed a population shift from upstream to downstream based on the predominance of insect and mollusk groups. The upstream was populated by Chironomus sp. (Insecta: Chironomidae) with 124 ind/m2, followed by Helicorbis sp. (Mollusca: Planorbidae) with 90 ind/m2, and Cambarincola sp. (Oligochaete) with 89 ind/m2. Helicorbis sp. with 298 ind/m2 had the highest density in the midstream, followed by Cambarincola sp. (Oligochaete: Branchiobdllidae) with 285 ind/m2, and Melanoides sp. (Mollusca: Thiaridae) with 184 ind/m2. Furthermore, Melanoides sp. (533 ind/m2), Helicorbis sp. (475 ind/m2), and Limnodrilus sp. (288 ind/m2, Oligochaete: Naididae) were the three most dominant taxa in the downstream. The Shannon's diversity index (H') in upstream and downstream were both 2.12, while the downstream index was 1.90. There was a significant difference among stations based on relative taxa density (F2,8 = 14.16, p = 0.005). Therefore, further research on other taxa groups, such as plankton and fish, should be conducted to increase the understanding of the anthropogenic effect on stream conditions in the Purba District.
KEYWORDS
Benthic Macrofauna, Correspondence Analysis (CA), North Sumatra, Spatial Distribution
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Ika Rosenta Purba , Adrian Hartanto , Bagus Prio Prakoso , "Community Structure of Macrozoobenthos from Upstream to Downstream of Purba District, North Sumatra," Environment and Ecology Research, Vol. 11, No. 2, pp. 240 - 248, 2023. DOI: 10.13189/eer.2023.110202.
(b). APA Format:
Ika Rosenta Purba , Adrian Hartanto , Bagus Prio Prakoso (2023). Community Structure of Macrozoobenthos from Upstream to Downstream of Purba District, North Sumatra. Environment and Ecology Research, 11(2), 240 - 248. DOI: 10.13189/eer.2023.110202.