In my personal experience of 2014, dense crayfish populations in a fishery with little to no predation [my BG/YP pond] did indeed denude the pond of all algae and vegetation - including Chara, FA, sago and american pondweed. I was shocked at the condition of this pond after the season. However, in the presence of any apex predators like SMB, LMB, WE, etc. I am not sure one could preserve the population density needed for complete vegetation control like I experienced.


Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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