伊勢湾における1978年の赤潮(Prorocentrum micans)発生時の海洋状況について

概要

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An intensive bloom of Prorocentrum micans occurred during May-July in 1978. Both amounts of chl-a and particulate-COD showed maximum values during 1975 to 1984. Hydrographic and meteorological parameters such as salinity, water temperature, rain fall and gloval solar radiation collected from inner parts of Ise Bay during the period of the investigation were applied to fundamental statistical analysis. The oceanographic characteristics in 1978 were summarized as follows: 1) River runoff was small amount through the year. 2) The amount of precipitation in May was 80mm which was 50% of the average year. 3) Integrating water temperature (°C) showed the maximum value. 4) Gloval solar radiation (MJ/m2) at May, June and July were greater than 75%-value in each month. There-fore, the bloom in 1978 seems to have occurred under uncommon hydrographic and meteorological conditions.
日本水産學會の論文