해양환경보전에 있어서의 미생물학적 연구 3. 서해안(백련리와 계화도앞바다) 해저니의 성상과 미생물학적 연구

Micorbiological study on the preservation for marine environment 3. Comparisons of Chemical Compositions and Bacterial Counts in Mud of the Western-sea-coast, Packnyun-ri and Ke hwa-do

This experiment was conducted an inquiring into the posibility of raising for Meretrix lusoria in Pack nyun-ri(Puan-gun Chonbuk). The chemical compositions such as chemical oxygen demand(COD), organic carbon(OC), organic nitrogen(ON), and sulfide(S) and microorganisms such as aerobic-and sulfate-reducing-bacteria in mud of the Western-sea-coast, Pack nyun-ri where artificial M. lusoria had rised until 1975 and Ke hwa-do having produce natural M. lusoria, were compared, Four area(station) of mud at Pack nyun-ri were plowed for aerogation twice per week during 5-month(from June to October, 1986). 1. The values of COD, OC, and S of Pack nyun-ri were 2-fold as much as those of Ke hwa-do, but no difference in bacterial counts. 2. After 5-month Pack nyun-ri was plowed, the chemical compositions of these area decreased as a half values. 3. Of these results indicate that the mud of Pack nyun-ri should be plowed for raising M. lusoria.