Staff at Arroyo worked in unique and sensitive areas to improve critical habitat for federally threatened and/or endangered species, as well as degraded reservoirs and tributaries. Work has focused on habitat improvement, exotic species removal, erosion control, re-vegetation, active monitoring, etc. See our Project page for more details.
Aquatic Ecosystem Evaluation
As part of permitting actions with State and Federal agencies Arroyo has performed aquatic ecosystem evaluations. These evaluations have included freshwater and tidal streams and rivers, and wetland areas. Each evaluation was unique and designed to address specific permitting concerns. General work involved habitat assessments, fish and benthic macroinvertebrate population assessments, vegetation community assessments, water quality evaluations and stream channel evaluations.
Instream Flow Studies
Arroyo staff have been intimately involved in the Instream Flow Program for the State of Texas and have years of experience ranging from onsite field activities to study plan design and resource agency coordination. Arroyo has continued to strengthen relationships with river authorities and agency staff across the State. Similar to aquatic ecosystem evaluations, the instream flow studies focus on relating instream flows to available habitat. This habitat is usually critical for certain “indicator” species which are considered the most sensitive or important. In support of the Instream Flow Program, Arroyo staff have collected and processed macroinvertebrate, fish and mussels, habitat data, flow data, channel survey data, riparian data and water quality data.