Use salt for transport
Common table salt is widely
used in fish transport. It should
contain no iodine. The concentration
of salts in the blood of most
fish is 1 to 1.2 percent. Adding
salt to the transport water
reduces the mineral difference
between the water and fish blood
which lessens the effects caused
by this osmotic imbalance. Salt
is added to make solutions of .05
Transport truck used to load live catfish.
* Louisiana Cooperative Extension
to 1 percent (500 to 10,000 ppm),
depending on the species of fish.
This is equivalent to 0.4 to 8
pounds of salt per 100 gallons of
water. Use the lower rates on
freshwater fish.
http://fisheries.tamu.edu/files/2013/09/...ading-Rates.pdf In those temperatures, I wouldn't haul more than 1/2 pound of fish per gallon of water, and I would also use an ammonia neutralizer if the fish weren't purged for 24-48 hrs before transport.
