Its rarity is essentially due to habitat loss and overfishing. The species is a crucial indicator of river ecosystem well being, highlighting the need for conservation. 提示：上图数据仅供参考，数据来源为各国或组织官方统计机构。 (使用鼠标滚轮可对数据区域进行缩放) Southern Bluefin Tuna populations have also declined sharply. These big fish can Are living around 40 years but have witnes... https://justpaste.it/c2oqq