Another common desalination process is Reverse Osmosis. It involves a solvent passing through a semi-permeable membrane; meaning this particular membrane only allows some molecules to penetrate or pass through. The solvent will then go into a solution with higher concentration of molecules.
Most genetically engineered fish are used in basic research in genetics and development. Two species of fish, zebrafish and medaka, are most commonly modified because they have optically clear chorions (shells), rapidly develop, and the 1-cell embryo is easy to see and microinject with transgenic DNA.ome GM fish that have been created have promoters driving an over-production of all fish growth hormone. This resulted in dramatic growth enhancement in several species, including salmonids, carps and tilapias.
6. Freshwater Coho Salmon (farmed in tank systems, from the U.S.). Freshwater coho salmon is the firstâand onlyâfarmed salmon to get a Super Green rating. All other farmed salmon still falls on Monterey Bay Aquariumâs Seafood Watch âavoidâ list for a few reasons.