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김도율,서영일,현상윤 한국수산과학회 2022 한국수산과학회지 Vol.55 No.6
Using the management strategy evaluation methods and data on the Korea chub mackerel Scomber japonicus where the state-space logistic production model is used as the operation and the estimation model respectivley, we examined the effects of both Dorn’s rule, α and the buffer value for ABC (allowable biological catch), which are used by the Korea fishery managers for decision rules. We set scenarios that have different pairs of buffer and α values, which include those currently used in the management in Korea. Under each sceanario, we projected the fish population biomass until year 2050, during which ABC is determined in each year with the decision rule. We used three kinds of performance measures: (i) whether the biomass in 2050 is overfished; (ii) the average of annual yields over the simulation period; and (iii) the variability of annual yields over the period. We found that the current practice (buffer=0.9, and α = 0.05) resulted in the best performance in terms of avoiding the “overfished” status. However, the current practice failed to reach the maximum average of the annual yields and led to larger uncertainty in the annual yields.
김도율,이춘성,류재연,조윤경,정수연,조아라,김영수,장봉기,이종화 순천향대학교 기초과학연구소 2014 순천향자연과학연구 논문집 Vol.20 No.1
The contents of Cd, Cu, Mn, and Pb in the hairdyes and dyed hairs were measured by ICP. Mean concentrations of heavy metals in hairdyes were Cd 0.026 ppm, Cu 2.969 ppm, Mn 0.249 ppm and Pb 0.108 ppm. These results are below the limit values of heavy metals for industrial products. Mean concentrations of heavy metals in the dyed hairs were Cd 0.410 ppm, Cu 63.55 ppm, Mn 32.95 ppm and Pb 10.52 ppm. Human health risk by using hairdye is estimated to be low. But heavy metals can be accumulated in human body, evaluation of health risk by consecutive use of the hairdye should be conducted in the future.