2008: Noosa Two Headed Fish Controversy and Carbendazim

By 2005 Gwen’s fish farm was flanked by Macadamia plantations on three sides. In 2006 she experienced a total fish kill after spray drift from her new neighbours. She was paid compensation by the farmer with no admission of liability. In 2007 with a change of management of the adjacent farm, co-operation was lost and compensation payments ended — but the fish kills continued...Gwen took photos of dying fish larvae through her microscope, some spinning uncontrollably and others hatching with two heads…Gwen wrote an article seeking help that was published in the aquaculture magazine Hatchery International and an aquaculture veterinarian, Dr Matt Landos, visited her farm in October 2008. He confirmed Gwen’s observations with separate trials and was at the fish farm to see the full effects of the spay drift from the Macadamia plantation. He identified three main chemicals used on Macadamia farms that were likely to have affected these fish — Carbendazim, Endosulfan and Methidathione — provided a case report and samples to QDPI&F.

Noosa’s two-headed fish: farm spraying goes nuts