淡水湖

1. Origins, structure, and basic meaning

• Structure: 淡水湖, read たんすいこ, means a lake of water with low salinity.
• Basic usage: It specifies the lake's water type when discussing waterbirds gathering there or villages around it.
  • この淡水湖には多くの水鳥が集まる。

2. Common pitfalls and similar expressions

• Salinity compared with 塩湖
  • 淡水湖 is a lake with low salinity, while 塩湖 is a saline lake. 淡水 does not require the complete absence of salts.