The last time we discussed it, the consensus was it meant the temperature at the depth the fish are spawning. More specifically, where the spawning beds are. E.G. in a large reservoir, the bass begin spawning first in the coves and shallows where the water is warmest, not in the main channels where it is still too cold.


"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
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