Do the herbicides kill fish or cause them to leave areas that have been sprayed?
The FWC and the University of Florida have done studies on Florida waterbodies which indicate that spraying does not affect the catchability of fish, or adversely affect “bedding” fish. Isolated fish kills do sometimes naturally occur due to low levels of dissolved oxygen in the water. When dead plants begin to decay, and the organisms that break down the plant material use the dissolved oxygen in the water, then it may adversely affect the dissolved oxygen levels. It is to avoid fish kills that the department requires that the dissolved oxygen in the water to be treated be measured beforehand. These activities are also sometimes spread out over a five or six week period to assure no adverse affects on the dissolved oxygen levels. (From http://plants.ifas.ufl.edu/guide/whymanag.
The FWC and the University of Florida have done studies on Florida waterbodies which indicate that spraying does not affect the catchability of fish, or adversely affect “bedding” fish. Isolated fish kills do sometimes naturally occur due to low levels of dissolved oxygen in the water. When dead plants begin to decay, and the organisms that break down the plant material use the dissolved oxygen in the water, then it may adversely affect the dissolved oxygen levels. It is to avoid fish kills that the department requires that the dissolved oxygen in the water to be treated be measured beforehand. These activities are also sometimes spread out over a five or six week period to assure no adverse affects on the dissolved oxygen levels.
