Meiobenthic nematodes in the assessment of the relative impact of human activities on coastal marine ecosystem
| Autor: | Somin Lee, Kanghyun Lee, Federica Semprucci, Wonchoel Lee, Seunghan Lee, Jung Ho Hong, Donggu Jeon, Kichoon Kim, Hyunsu Yoo, Raehyuk Jeong, Jisu Yeom, Jaehyun Kim, Jungho Kim |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Geologic Sediments
010504 meteorology & atmospheric sciences Nematoda Meiobenthos 010501 environmental sciences Management Monitoring Policy and Law Biology 01 natural sciences Diversity index Metals Heavy Republic of Korea Ecotoxicology Animals Meiobenthos . Nematode composition . Benthic bioindicators . Coastal management . Korea Organic matter Marine ecosystem Human Activities Ecosystem 0105 earth and related environmental sciences General Environmental Science chemistry.chemical_classification Ecology Water Pollution Community structure General Medicine Eutrophication Pollution Taxon chemistry Environmental Monitoring |
| Popis: | Ecological quality (EcoQ) status of the Southwest and West coasts of South Korea was evaluated within the “National Investigation of Marine Ecosystems in Korea” in the 2015. In particular, the study dealt to assess the ecological quality of the sediments using free-living nematode communities. A total of 149 species were found in the study area, and Daptonema, Sabatieria, Parodontophora, Sphaerolaimus, and Viscosia were found as dominant genera. Statistical analysis of both environmental and faunal parameters showed an increasing human pressure from Western to Southern coasts. The community structure changed with the environmental features of the study area and allowed the detection of a suite of possible nematode indicators that might be used in monitoring studies. In particular, Dorylaimopsis spp. appeared heavy metal and organic matter resistant taxa, Sabatieria an eutrophication resistant genus, while Paracanthonchus and Neotonchus as heavy metal and organic matter sensitive genera. The principal component analysis (PCA) results showed a clear negative correlation between maturity index and both heavy metal and organic matter increasing, while diversity indices did not appear to be significantly influenced by them. Appling the thresholds of the synthetic nematode indices, the EcoQ of the study area was assessed as poor to moderate. |
| Databáze: | OpenAIRE |
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