欧亚水獭

📖 1. 概览

韩国淡水河流生态系统的顶级掠食者及代表水质健康的关键种，为韩国天然纪念物第330号。

🌐 Wikipedia 摘要摘录

The Eurasian otter, also known as the European otter, Eurasian river otter, European river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia and the Maghreb. It is the most widely distributed member of the otter subfamily (Lutrinae) of the weasel family (Mustelidae) and is found in the waterways and on the coasts of Europe, much of Asia, and parts of North Africa. The Eurasian otter eats mainly fish, and is strongly territorial. It is endangered in some parts of its range, but is recovering in others.

🦴 2. 身体结构与特征

拥有每1cm²达5万根的超高密度防水绒毛、趾间蹼，以及能在水中感知鱼类游动的硬须。

🔍 3. 生态与行为

通过控制蓝鳃太阳鱼和鲈鱼等外来鱼种，守护河流的生物多样性。

🇰🇷 4. 与韩国的关联

从首尔汉江、汝矣岛支流到晋州晋阳湖，是韩国全国河流生态恢复的象征。