本文基于日本东京湾、伊势湾和浜名湖的调查资料，详细地比较了这3个海湾海水中的溶存甲烷浓度、饱和度。

• Based on our investigative data for Tokyo Bay, Ise Bay, and Hamana Lake in Japan , thispaper compared the concentration and saturation factor of the dissolved methane in seawater of these three estuaries.