In the terms of water/aquatics what does...?

Question

In the terms of water/aquatics what does

FAV stand for

and

EAV stand for

i k now

SAV is submerged aquatic vegetaion but what

are

FAV and EAV

thanks!

Answer 1

FAV may mean Final Acute Value, which is a term used in aquatic toxicology.  Not sure what EAV would stand for.

Answer 2

That's floating and emergent aquatic vegetation.