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순천 상내리 갯벌역에 출현하는 풀망둑(Synechogobius hasta)의 식성Feeding Habits of Javelin Goby Synechogobius hasta on Tide Flat in Sangnae-ri Suncheon, Korea
- Other Titles
- Feeding Habits of Javelin Goby Synechogobius hasta on Tide Flat in Sangnae-ri Suncheon, Korea
- Issue Date
- 2015
- Publisher
- 한국수산과학회
- Keywords
- Synechogobius hasta; Feeding habits; Stomach contents; Ontogenetic change
- Citation
- 한국수산과학회지, v.48, no.6, pp 982 - 987
- Pages
- 6
- Indexed
- KCI
- Journal Title
- 한국수산과학회지
- Volume
- 48
- Number
- 6
- Start Page
- 982
- End Page
- 987
- ISSN
- 0374-8111
- Abstract
- During the study period, a total of 158 individuals of Synechogobius hasta were collected. The range of body length (BL) was 15.4-44.5 cm. The stomachs of 26.6% of the individuals were empty. The most abundant prey was shrimp. Among shrimp, Exopalaemon orientis was the most abundant species, being present in 27% in %IRI (index of relative importance). Fishes and crabs were also abundant prey. Analysis of ontogenetic changes, suggested that shrimp were the main prey of S. hasta of two size classes (<20 and 20-25 cm). The proportion of shrimp decreased, but that of fishes and crabs increased, with increasing body length, beginning at the 25-30 cm size class. In spring, fishes were the dominant prey, while shrimps, and crabs and fishes dominated in autumn and winter, respectively.
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