What Fish See
What Fish See by Dr. Kageyama explains that the only visible colors in 60-feet of water are blue and green, and salmonids' eyes adapt to this, to the exclusion of other colors. Salmon strike bright green lures because they see green so vividly. According to Kageyama, salmonids' eyes become more sensitive to oranges and reds after entering fresh water and become spawining mature. It makes sense that seeing salmon eggs is important for spawning salmon.
The information re colors visible in the ocean's depths is confirmed in a recent issue of National Geographic.
What Fish See is an interesting book.
Last edited by Bob Pauli; 04-27-2005 at 05:30 PM.