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http://dx.doi.org/10.11626/KJEB.2017.35.4.446

Influence of Farming Practices on Weight-Length Relationship of the Loach (Misgurnus anguillicaudatus) Population in Rice Paddy Fields  

Kim, Myung-Hyun (National Institute of Agricultural Sciences, RDA)
Choi, Soon-Kun (National Institute of Agricultural Sciences, RDA)
Eo, Jinu (National Institute of Agricultural Sciences, RDA)
Kwon, Soon-Ik (National Institute of Agricultural Sciences, RDA)
Song, Young-Ju (National Institute of Agricultural Sciences, RDA)
Publication Information
Korean Journal of Environmental Biology / v.35, no.4, 2017 , pp. 446-451 More about this Journal
Abstract
The length frequency and weight-length relationships within the loach population of Misgurnus anguillicaudatus were investigated in environment-friendly (EFP) and conventional paddy fields (CP) in South Korea, in order to identify the influences of farming practices to the loach population living in paddy ecosystem. The size-frequency of distribution of M. anguillicaudatus populations noted to differ significantly when the loach populations of the EFP and the CP were compared. The mean weight and length of the loach population in EFP was greater than those of the loaches in CP. The equations based on weight and total length relationship in EFP and CP were $W=0.000004L^{3.0747}$ and $W=0.000002L^{3.2106}$, respectively. The condition factor (K) against total length of loaches at two paddy field types with different farming practices indicates that the loach population in EFP(mean K=0.95) had access to better nutritional conditions than those in CP (mean K=0.67). It therefore appears that the size and structure of loach populations in rice paddy fields might be affected by farming practices.
Keywords
conventional practices; environment-friendly practices; condition factor; population structure;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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