Authors
Info
S.H. Oh1, J.H. Choi1,
D.S. Son2
and C.W. Ma2* ?
1National Institute
of Fisheries Science Fisheries Resources Research Center, Tongyeong, 53064,
Korea
2Department of Life
Science and Biotechnology, Soonchunhyang University, Asan, 31538,
South Korea
*Corresponding
Author Email :
cwooma@sch.ac.kr
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Abstract
Aim: The present study
was performed to understand the macrobenthic community in 49 stations of
intertidal at Garolim Bay during summer.
Methodology: The surface layer
sediments and macrobenthos were collected by using the methods employed for
the study conducted by Shin et al. (2004) to compare changes in the
community of macrobenthos and components of the sediment in the intertidal at
Garolim Bay. The improved model of Van Veen grab sampler of 0.045 m2
of its sampling area was used for sampling of surface layer sediments
conducted on a ship in June 2015 at 49 stations placed in the intertidal at
Garolim Bay.
Results: The sediment
environment analysis revealed the mean ratio of sand at 55.50% followed by
41.72% silt and 2.78% clay, respectively. A total of 120 species of
intertidal macrobenthos with a density of 630 individuals m-2 were
investigated. The mean biomass thereof was 22.59 g wwt m-2. The
most dominant species was polychaetes, Heteromastus filiformis
(68.58%), Mediomastus californiensis (9.43%), crustaceans Ilyoplax
pingi, crustaceans Macrophthalmus japonicus and so on. After
analyzing the correlation coefficient between biotic in and sediment, the
abundance and species evenness were found significantly related to
environment factors.
Interpretation: In this study,
six species of polychaete appeared on the top 10 dominant species; and among
them, two species of H. filiformis and M. californiensis
belonging to Capitellidae were found with 50% habitation density and more
than 75% occupancy.
Key words: Community structure, Garolim Bay, Macrobenthos,
Polychaeta
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