https://www.youtube.com/watch?v=NCqIQJ5dU9w
This video is just 6 facts about streams.
https://www.youtube.com/watch?v=wZGzqDfoIks
In this video it's mostly telling about the stream ecosystem health.
https://www.youtube.com/watch?v=9MnmlGOFewQ
This last video tells you about stream ecology basics.
By Samuel,Emanuel,Brian