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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Field survey on the variational characteristics of water quality and chlorophyll a concentration were carried out at the 25 stations for four seasons in Kogum-sudo(Straits), southern coast of Korean Peninsula from Feburuary to October in 1993.
We made an analysis on biological factor as chlorophyll a concentration as well as physico-chemical factors such as water temperature, salinity, sigma-t, transparency, dissolved oxygen(DO), chemical oxygen demand (COD), nutrients (ammonia, nitrite, nitrate, phosphate, and silicate), N/P ratio and suspended solid(SS).
The waters in the Kogum-sudo were not stratified due to the tidal mixing. And the high productivity in photic layer were supported by high nutrients concentration from bottom waters. The high concentrations of suspended solid in straits had a bad influence upon marine biology of nature and cultivations.
In Kogum-sudo had a sufficient nutrients for primary productivity during a year. Especially phosphate and inorganic nitrogen were high, the other side, silicate was very low. The source of nutrients supply depend on rather mineralization of organic matters and input of seawater from outside than input of freshwaters from lands.
Phytoplankton biomass as measured by chlorophyll a concentration was very high all the year round, and it was controlled by the combination of several environmental factors, especially of phosphate in summer and dissolved nitrogen in other seasons.
We made an analysis on biological factor as chlorophyll a concentration as well as physico-chemical factors such as water temperature, salinity, sigma-t, transparency, dissolved oxygen(DO), chemical oxygen demand (COD), nutrients (ammonia, nitrite, nitrate, phosphate, and silicate), N/P ratio and suspended solid(SS).
The waters in the Kogum-sudo were not stratified due to the tidal mixing. And the high productivity in photic layer were supported by high nutrients concentration from bottom waters. The high concentrations of suspended solid in straits had a bad influence upon marine biology of nature and cultivations.
In Kogum-sudo had a sufficient nutrients for primary productivity during a year. Especially phosphate and inorganic nitrogen were high, the other side, silicate was very low. The source of nutrients supply depend on rather mineralization of organic matters and input of seawater from outside than input of freshwaters from lands.
Phytoplankton biomass as measured by chlorophyll a concentration was very high all the year round, and it was controlled by the combination of several environmental factors, especially of phosphate in summer and dissolved nitrogen in other seasons.
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