천수만 방조제 건설 후 대천 해빈 천해 어류의 중장기 종조성 변화 SCOPUS KCI

Title
천수만 방조제 건설 후 대천 해빈 천해 어류의 중장기 종조성 변화
Alternative Title
Post-Reclamation Long-term Changes in Fish Species Composition of Beach Seine Samples in Cheonsu Bay
Author(s)
Kwon, Soonyeol; Hwang, Hak Bin; Hong, Ji Min; Lee, Tae Won
KIOST Author(s)
Kwon, Soon Yeol(권순열)
Publication Year
2020-06
Abstract
Species composition of fish in the shallow water at Daecheon beach was determined using monthly beach seine samples collected from April 2010 to March 2011. These data were compared with the previous data, one just after reclamation in 1984–1985, and the other in 1995–96, in order to assess the post-reclamation impact of the environmental change on the fish assemblage. A total of 30 species from 1,464 individuals with biomass of 17,808 g were identified. Dominant species in the number of individuals were Chelon haematocheilus (49.3%), Takifugu niphobles (13.7%) and Paralichthys olivaceus (10.0%). Among pelagic fish, migrant juvenile fish such as Sardinella zunasi and Thryssa kammalensis were abundantly collected in 1984–85, but the catch amount was gradually decreased as time untill only few pelagic fish were collected in 2010–2011. The benthic fish were most abundant in 1984–1985 among habitat groups, and Favonigobius gymnauchen and Kareius bicoloratus were the top two predominants. Species composition of benthic fish did not exhibited drastic changes in 1995–1996, but both the abundance decline and the species composition change was evident in 2010–2011. Among the semi-benthic fish from 1984–1985 samples, Sillago japonica and Konosirus punctatus predominated. Species composition was slightly changed in 1995–1996, but significant changes were met in 2010–2011 with the two predominats, Chelon haematocheilus and Takifufuniphobles. These changes in fish species composition may reflect the post-reclamation effect of the impaired water quality and the accumulation of organic rich fine sediments.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/20973
DOI
10.4217/OPR.2020.42.2.141
Bibliographic Citation
Ocean and Polar Research, v.42, no.2, pp.141 - 155, 2020
Publisher
한국해양과학기술원
Type
Article
Language
Korean
Publisher
한국해양과학기술원
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