Troutin Man
08-06-2013, 11:16 PM
For those who don't know...Green Valley Lake will be spraying this week to kill off the algae bloom. The chemical company claims that the spray will not hurt the fish. However, I believe real answers are needed especially since people pay and consume fish. I asked the question before: Will the spray effect the trout bite or kill fish? Here are some answers...
My friend knows a professor from UC San Diego...a limnologist...study of freshwater, chemicals, and living organisms in fresh inland waters. He talked to him regarding my question regarding the algae spray and green valley lake. He told my friend that even though the spray may not kill the majority of fish, it will effect the ecology of the lake thus changing the behavior of living organisms and how they interact. He believes that a small percentage of fish will actually die from the spray, some will die from the effects of the algae being killed, and some will die due to consuming a concentrated amount of chemical within fish that consumed the algae in some fashion. However, the number of die off should be minimal.
He told my friend that human consumption is fine, but the aquatic life and behavior will be altered for awhile...2 weeks to a month (since GVL is small) and the spray will negatively impact the bite to some capacity. He also stated that trout especially follow the behavior of other trout and schools of trout will most likely lay low due to the shut down effect it will have on the fish. As new stockings are introduced, a large number of trout will be inactive due to the other trout already living in the lake being inactive. They will just follow their cues and natural signals from others. However as new stockings continue (like in a month), more and more active trout will overpower the inactive trout and bring energy to the lake combined with the effect of the food chain changing and adapting in a month or so.
Bottom Line: the bite will be difficult over the next few weeks (starting this week). Trout bite will be active in a month or so. With the stockings and inactive fish for awhile, the bite should really go off in September!
Hope this helps my fellow FNNers. Motto: Real Investigations. Real People. Real Answers. :Soap Box:
My friend knows a professor from UC San Diego...a limnologist...study of freshwater, chemicals, and living organisms in fresh inland waters. He talked to him regarding my question regarding the algae spray and green valley lake. He told my friend that even though the spray may not kill the majority of fish, it will effect the ecology of the lake thus changing the behavior of living organisms and how they interact. He believes that a small percentage of fish will actually die from the spray, some will die from the effects of the algae being killed, and some will die due to consuming a concentrated amount of chemical within fish that consumed the algae in some fashion. However, the number of die off should be minimal.
He told my friend that human consumption is fine, but the aquatic life and behavior will be altered for awhile...2 weeks to a month (since GVL is small) and the spray will negatively impact the bite to some capacity. He also stated that trout especially follow the behavior of other trout and schools of trout will most likely lay low due to the shut down effect it will have on the fish. As new stockings are introduced, a large number of trout will be inactive due to the other trout already living in the lake being inactive. They will just follow their cues and natural signals from others. However as new stockings continue (like in a month), more and more active trout will overpower the inactive trout and bring energy to the lake combined with the effect of the food chain changing and adapting in a month or so.
Bottom Line: the bite will be difficult over the next few weeks (starting this week). Trout bite will be active in a month or so. With the stockings and inactive fish for awhile, the bite should really go off in September!
Hope this helps my fellow FNNers. Motto: Real Investigations. Real People. Real Answers. :Soap Box: