Karmex Herbicide with Fertilization and Aeration to Control Filamentous Algae in Hatchery Ponds
Six 0.10-acre (0.04 ha) hatchery ponds containing striped bass flngerlings were treated with Karmex herbicide in an effort to control filamentous algae composed mainly of the genera Pithophora and Spirogyra. Ponds treated were fertilized and aerated immediately alter application of Karmex. Shortly after treatment with Karmex, large mats of filamentous algae floated to the surface, decayed, and were broken into fragments by agitation from aerators. The fragments settled to the pond bottoms. Dissolved oxygen concentrations dropped rapidly for several days following treatment, but remained...
