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Officials say lack of oxygen likely caused fish die‑off at Laguna Niguel Regional Lake; no toxins found
Summary
Council members and county contractors reported findings from a town hall on a recent fish die‑off at the Laguna Niguel Regional Lake, saying experts believe low dissolved oxygen — not pesticides or poisons — caused most deaths and that the county plans steps to reduce recurrence.
Council members reported to the Laguna Niguel City Council on Aug. 19 that findings from a recent town hall indicate low dissolved oxygen, amplified by hot, overcast weather, is the likely cause of a recent fish die‑off at the Laguna Niguel Regional Lake. Council Member Otto, Mayor Pro Tem Johns and Mayor Genway said the town hall convened county staff and contractor Science Aquatech, represented by Terry McNabb, who explained that a…
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