Brian Carlson Adds Candy Darter to Federal Recovery Permit

September 1, 2022
Candy Darter (Etheostoma osburni) | Ryan Hagerty, USFWS

Candy Darter (Etheostoma osburni) | Ryan Hagerty, USFWS

Congratulations to EnviroScience Aquatic Ecologist Brian Carlson, who has just added the Candy Darter (Etheostoma osburni) as an authorized species to his federal recovery permit. The Candy Darter has a very small range; it is only known from West Virginia and Virginia’s Upper Kanawha River Basin, which is synonymous with the Gauley and Greater New River watersheds.

Brian was already permitted for a wide range of freshwater mussels, as well as the federally endangered Guyandotte River crayfish and federally threatened Big Sandy crayfish. During off-season winter months, Brian prefers identifying aquatic macroinvertebrates using his SFS EPT East & North American Chironomidae certifications.

Click here for more information on the EnviroScience Ichthyology Team and its fish surveys.

If you have specific questions about presence/absence surveys or potential project needs, please contact Brian at:  BCarlson @

Few environmental firms in the country retain EnviroScience’s degree of scientific know-how, talent, and capability under one roof. The diverse backgrounds of our biologists, environmental engineers, scientists, and divers enable us to provide comprehensive in-house services and an integrated approach to solving environmental challenges—saving clients time, reducing costs, and ensuring high-quality results. EnviroScience was created with the concept that we could solve complex problems by empowering great people. This concept still holds true today, as our scientists explore the latest in environmental legislation and regulations and incorporate the most up-to-date technology to gather and report data.

EnviroScience expertise includes but is not limited to: aquatic survey (including macroinvertebrate surveys and biological assessments); ecological restoration; ecological services (including impact assessments, invasive species control, and water quality monitoring);  emergency response; engineering and compliance services; endangered mussel surveys; laboratory and analysis; stormwater management; threatened and endangered species; and wetlands and streams (including delineation and mitigation). Further, EnviroScience is one of the few biological firms in the country that is a general member of the Association of Diving Contractors International (ADCI) and offers full-service commercial diving services.