Cargando…
Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years
Ichthyofauna and fish community were investigated at 17 representative stations of the Dongjin River drainage system from spring to fall in 2014. The survey resulted in a list of 53 species belonging to 14 families structured into 4 distinctive parts along the river: uppermost-stream, upper-stream,...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Taylor & Francis
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6138316/ https://www.ncbi.nlm.nih.gov/pubmed/30460071 http://dx.doi.org/10.1080/19768354.2017.1330223 |
_version_ | 1783355321293471744 |
---|---|
author | Ko, Myeong-Hun Kwan, Ye-Seul Lee, Won-Kyung Won, Yong-Jin |
author_facet | Ko, Myeong-Hun Kwan, Ye-Seul Lee, Won-Kyung Won, Yong-Jin |
author_sort | Ko, Myeong-Hun |
collection | PubMed |
description | Ichthyofauna and fish community were investigated at 17 representative stations of the Dongjin River drainage system from spring to fall in 2014. The survey resulted in a list of 53 species belonging to 14 families structured into 4 distinctive parts along the river: uppermost-stream, upper-stream, mid-stream, and lower-stream. Comparison of species lists with 30-year interval exhibited significant decreases in peripheral freshwater fishes, Acheilognathinae, endemic, and indigeneity species, but increases in exotic, epipelagic, and lentic species. Moreover, in the estuary of the Dongjin River drainage system, peripheral freshwater fish species were replaced by pure freshwater fish species due to the Saemangeum sea-wall project. In the upper region of the river, introduced eight alien species from Seomjin River via water diversion tunnels. In the mid-lower region, the construction of floodgates and numerous small weirs caused expansion of lentic water areas, facilitating the spread of problematic exotic species such as Micropterus salmoides, Lepomis macrochirus, and Carassius cuvieri. Also, water deterioration in this region resulted in an increase of tolerant species and a decrease of sensitive and endemic species. Our results suggest that a recovery strategy for a healthy ecosystem in the Dongjin River drainage system should reflect this compartmentalized cause and effect on the changes of icthyofauna. |
format | Online Article Text |
id | pubmed-6138316 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Taylor & Francis |
record_format | MEDLINE/PubMed |
spelling | pubmed-61383162018-11-20 Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years Ko, Myeong-Hun Kwan, Ye-Seul Lee, Won-Kyung Won, Yong-Jin Anim Cells Syst (Seoul) Articles Ichthyofauna and fish community were investigated at 17 representative stations of the Dongjin River drainage system from spring to fall in 2014. The survey resulted in a list of 53 species belonging to 14 families structured into 4 distinctive parts along the river: uppermost-stream, upper-stream, mid-stream, and lower-stream. Comparison of species lists with 30-year interval exhibited significant decreases in peripheral freshwater fishes, Acheilognathinae, endemic, and indigeneity species, but increases in exotic, epipelagic, and lentic species. Moreover, in the estuary of the Dongjin River drainage system, peripheral freshwater fish species were replaced by pure freshwater fish species due to the Saemangeum sea-wall project. In the upper region of the river, introduced eight alien species from Seomjin River via water diversion tunnels. In the mid-lower region, the construction of floodgates and numerous small weirs caused expansion of lentic water areas, facilitating the spread of problematic exotic species such as Micropterus salmoides, Lepomis macrochirus, and Carassius cuvieri. Also, water deterioration in this region resulted in an increase of tolerant species and a decrease of sensitive and endemic species. Our results suggest that a recovery strategy for a healthy ecosystem in the Dongjin River drainage system should reflect this compartmentalized cause and effect on the changes of icthyofauna. Taylor & Francis 2017-05-25 /pmc/articles/PMC6138316/ /pubmed/30460071 http://dx.doi.org/10.1080/19768354.2017.1330223 Text en © 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Articles Ko, Myeong-Hun Kwan, Ye-Seul Lee, Won-Kyung Won, Yong-Jin Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years |
title | Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years |
title_full | Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years |
title_fullStr | Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years |
title_full_unstemmed | Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years |
title_short | Impact of human activities on changes of ichthyofauna in Dongjin River of Korea in the past 30 years |
title_sort | impact of human activities on changes of ichthyofauna in dongjin river of korea in the past 30 years |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6138316/ https://www.ncbi.nlm.nih.gov/pubmed/30460071 http://dx.doi.org/10.1080/19768354.2017.1330223 |
work_keys_str_mv | AT komyeonghun impactofhumanactivitiesonchangesofichthyofaunaindongjinriverofkoreainthepast30years AT kwanyeseul impactofhumanactivitiesonchangesofichthyofaunaindongjinriverofkoreainthepast30years AT leewonkyung impactofhumanactivitiesonchangesofichthyofaunaindongjinriverofkoreainthepast30years AT wonyongjin impactofhumanactivitiesonchangesofichthyofaunaindongjinriverofkoreainthepast30years |