Toxicity of elevated partial pressures of carbon dioxide to invasive New Zealand mudsnails

The authors tested the efficacy of elevated partial pressures of CO₂ to kill invasive New Zealand mudsnails. The New Zealand mudsnails were exposed to 100 kPa at three water temperatures, and the survival was modeled versus dose as cumulative °C-h. We estimated an LD50 of 59.4°C-h for adult and juvenile New Zealand mudsnails. The results suggest that CO₂ may be an effective and inexpensive lethal tool to treat substrates, tanks, or materials infested with New Zealand mudsnails.