Anyone know of (or have and would share) any papers comparing open circuit vs closed circuit diving for fish counts? Any informal personal observations?
I'm wondering if comparing data from one method would be valid when compared to the other.
I found this: Does breathing apparatus affect Fish counts and observations?
A comparison at three New Zealand fished and protected areas, RG Cole, et al, Mar Biol (2007) 150:13791395
They found no significant difference between methods, but I'm stumped on additional sources.
Thanks!
Chris
I'm wondering if comparing data from one method would be valid when compared to the other.
I found this: Does breathing apparatus affect Fish counts and observations?
A comparison at three New Zealand fished and protected areas, RG Cole, et al, Mar Biol (2007) 150:13791395
They found no significant difference between methods, but I'm stumped on additional sources.
Thanks!
Chris