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전북 부안의 좀구굴치 ( Micropercops swinhonis ) 개체군 생태
김익수,김병직 ( Ik Soo Kim,Byung Jik Kim ) 한국하천호수학회 1997 생태와 환경 Vol.30 No.1
Population ecology of the freshwater goby, Micropercops swinhonis(Gu¨nther) was studied at the Ch`oˇngho reservoir of Puan-gun, Ch`oˇllabuk-do, Korea from January 1994 to July 1995. The usual habitat of this species is usually the sand and mud substrates where water plants are dense. 18 fish species in 10 families inhabit with M. swinhonis. The food items of M. swinhonis consist of copepods, cladocerans, chironomid larvae and young fishes eat also copepod larvae and rotifers. The mature group of about 30∼40 mm in total length is reached during one year. Spawning period is from April to May based on the gonadosomatic index of female and male. The number of mature ovarian eggs of an adult female is enumerated as 219∼958 and the size of ripe eggs is 0.64∼1.12mm in diameter.
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