Shtereva G, Krastev A, Hristova O
Institute of Oceanology, Bulgarian Academy of Science, Varna.
Water Sci Technol. 2002;46(8):137-43.
The paper discusses the seasonal dynamics of nutrients and oxygen during the period 1995-1998 in comparison to the previous periods. This study is based on monthly and seasonally monitoring in the 3-20 n. m. zone along the Bulgarian Black Sea area. The investigation reveals certain shifting of seasonal maximums (minimums) and a trend of decreasing oxygen saturation, phosphorus and silicon in the last few years.
本文讨论了1995 - 1998年期间营养物质和氧气的季节动态，并与之前的时期进行了比较。本研究基于对保加利亚黑海地区3 - 20海里区域的月度和季节性监测。调查揭示了季节性最大值（最小值）的某些变化，以及过去几年氧气饱和度、磷和硅含量下降的趋势。
