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홍기훈,박영안,이광우,Hong, Gi Hoon,Park, Yong Ahn,Lee, Kwang Woo 한국해양학회 1983 韓國海洋學會誌 Vol.18 No.2
Sediments were collected from eight stations in JJJJinhae Bay and heavy metals were fractionated into the adsoibed reducible, oxidizable and residual fractions. Cd, Cu, Pb and Zn in each fraction were determined by atomic absorption spectriphotmetry. Cd was shown to be mainly in the adsorbed form, Cu in the oxidizable and resedual fractions, and Pb and Zn mainly in the seducible fractions. The total concentrations of Cu, Pb and Zn in sediments decreased gradually with increasing distance from the heak of the bay, and the relationship of linear segression was obtained.
홍기훈,김경태,배세진,김석현,이수형,HONG, GI HOON,KIM, KYUNG TAE,PAE, SE JIN,KIM, SUK HYUN,LEE, SOO HYUNG The Korean Society of Oceanography 1991 韓國海洋學會誌 Vol.26 No.3
The annual cycles of plant major nutrients and dissolved oxygen in a nutrients-rich semi-enclosed coastal inlet, chinhae Bay, of the southern coast of the Korean Peninsula are first presented. The water column of the bay is stratified during summer (April-late September) and well0mixed during winter (October-March). During the summer stratification period, dissolved oxygen contents exceed 400uM in the surface but diminish to less than 50uM in the near bottom waters, which often results in an anoxic environment in the inner part of Chinhae Bay. After the breakdown of the stratification in October, dissolved oxygen concentration remains undersaturated until February. The evidence of allochthonous input of N-nutrients throughout the year is readily seen in the water column: however. crude budget calculations show that the nutrients are efficiently utilized within the bay ecosystem, and that export of the nutrients from the bay to the shelf must be negligible. There is no sign of the enrichment of the nutrients in the water column. The eutrophication phenomenon sensu stricto is not observed in chinhae Bay. Using the standing stock of dissolved oxygen and estimation of the oxygen fluxes across the air-sea boundary, a benthic oxygen respiration rate during winter is estimated conservatively at 21-24 mmol Cm/SUP -2/d/SUP -1/. this oxygen respiration rate accounts for about 20% of the total phytoplankton production in winter.