Quote Originally Posted by keith_r
there have been quite a few studies on the affect of the photoperiod on fish growth..
http://www.medwelljournals.com/fulltext ... 09.760.763 for trout..
here's an abstract on nile tilapia
http://onlinelibrary.wiley.com/doi/10.1 ... x/abstract

another on nile tilapia
http://www.mendeley.com/research/effect ... ticus-l-2/

"regurgitating a general conclusion from the large body of empirical evidence" ???
sounds like folklore to me.. hehe
OH, YOU rascal

Yea, there are literally thousands of studies out there on this particular topic related to fish dating as far back as 40 to 50 years ago.

I'm really busy with exams; so, I can't go digging for the exact sources, but this is a generally accepted assertion in the scientific community (which as with all things science, is subject to change with empirical evidence). I mean, I could go find 1 or 2, but that would be an injustice given the large body of scientific research and empirical evidence to date. I mean, it's even commonly known that fish will grow better under 24/0, but only under short term conditions. Any actual grow out period is 6 to 12 months, and 12/12 is the best way to go.

For the time being, try google. Find specific research studies that discuss growth rate not gonadal development (fecundity is different than getting big fat fish to eat, derp).

Keep looking guys, you'll find it! If not, I will post in a few days. (and I did try searching my archives briefly, but I have THOUSANDS of papers on all things aquaponics, and my search function on my computer is quite limited, one day I'll organize this mess...)