Enhanced aquatic invasive plant monitoring has revealed sparse areas of plant infestations between previously defined project areas. The South Shore Offshore Aquatic Invasive Plant Planning and Control project implements a new strategy to evaluate, plan, and implement control treatments in aquatic invasive plant-infested areas over a larger landscape vs. individual, specific areas. Work commenced in 2025 in the following unit locations: Taylor-Tallac offshore, Camp Richardson, Edgewood 1, Edgewood 2, and Nevada Beach.
Removal of AIS will contribute to improved fish habitat within Lake Tahoe for native fish and reduce habitat for invasive fish which prey on native fish and disrupt the natural food chain. Improved fish habitat will benefit reintroduction of Lahontan cutthroat trout.
Removal of aquatic invasive plants in the nearshore will contribute to providing a high quality recreation experience in the nearshore. Harmful algal blooms can occur in or near aquatic invasive plant infestations. Presence of cyanotoxins can result in reducing or closing recreation access to waterbodies. These conditions can coincide with extreme warm weather events.
It has been demonstrated that satellite populations increase the rate of expansion of an invasion and targeting such populations for reduction can act to reduce spread rates, thereby reducing aesthetic and visual impacts in the nearshore.
This project will improve water quality by removing aquatic invasive plants, a known contributor to decreased lake clarity. Harmful algal blooms can occur in or near aquatic invasive plant infestations. Cyanotoxins and algal toxins pose risks to the health and safety of people and pets drinking water and recreating in waterbodies affected by blooms.