However, severely impacted by intensive human activities, species resources in Yangtze River have been on constant decline, and the situation of migrationspecies is among the worst.
由于人类活动的影响，长江大批物种资源持续衰退，而洄游性物种的衰退尤为严重。
2
Without more research, we can't predict if Assisted Migration will work for any given species.
没有更多的研究，我们无法预测辅助迁移是否适用于某一特定的物种。
3
Assisted migration means picking up members of a species, or members of a group of interdependent species and physically moving or translocating them.