EddieWalker said:
I'm also thinking about putting in Mozambique Talapia. The die off when the water temps has me a litte concerned, but from what I've read over at Pondboss.com, it's not something that's very evident. Apperantly, when they die from the water getting cold, Mother Natured cleans them up real quickly. Eddie
Eddie, I raised some talapia during 2005. Like your climate, our water gets too cold for the talapia to survive over the winter.
I raised mine in a round cage that is 4 feet across and 4 feet deep. The cage is made out of plastic or nylon, and has floats attached around it. I anchored it right off of my gazebo, so I could easily throw feed to the talapia. You have to have a top on the cage because the talapia are so aggressive they could easily jump out.
Around Easter, I purchased 250 fingerlings - actually ended up with a lot more.
I began harvesting during October, as it started turning cool then, and I did not want to loose any fish. See the attached picture.
I tried to feed the fish at least 2 times a day, sometimes 3. Many weekends I was out of town, so they only fed on whatever came into the cage, as well as algae that grew on the cage.
The large talapia were close to 2 pounds. The ones that grow in warmer climates get much larger, but from a fingerling to 2 pounds in 6 months is a lot of weight gain.
The first harvest, I took the top off of the cage, and dipped out enough talapia to fill a 5 gallon bucket. Put the top back on, and started cleaning fish. I knew right then that I had bought way too many fish.
I ended up cleaning and filleting 80 talapia that day. Got them all wrapped and frozen, then asked the wife what the he77 we were going to do with all the rest. The next day I called a buddy and he came and took about 50. Called another buddy and he came and got another 50. The next day, I cleaned another 70+. Still had a bunch of fish left in the cage.
I was out of freezer room, so called a neighbor and asked if he wanted some. He said yes, so I pulled the cage out with the tractor, dumped the remaining fish in the loader of the BX 2200, and took off for my neighbors. Neighbor heard me coming and came out with a small bucket. I laughed, and told him he needed a bigger bucket. He had not looked in the loader yet, so he went back and got another small bucket. When he came back out and looked in my loader, he almost had a cow. (His dad has done similar things to me in the past: calls and ask if I can use a mess of butter beans. I say yes, and he brings a couple of bushels.) Anyway, neighbor gets his brother to help clean the fish. They ended up with almost as many as I did, but I was so tired of cleaning fish that I didn't care.
Now talapia is a great eating fish. The meat is white and is very mild - quite similar to flounder or grouper.
All in all, raising the talapia was a fun project, but it was not economical. Considering the cost of the fingerlings; all the fish food I bought; the time involved; etc. I would have come out better buying fresh fish.
Bob