Trutta Environmental Solutions

Fish & Invertebrates

Sampling Fish and Invertebrates is useful for several reasons. Animals that occur in a stream live there continuously and reflect the health of the stream. Thus a healthy stream should have the naturally occurring community of stream animals, while an unhealthy stream may have a reduced number of species. In addition to documenting stream health, sampling fish and invertebrates may be done to support aquatic species management. This may be for sport fish or Threatened & Endangered species.

At Trutta Environmental Solutions, we have experience sampling for aquatic species using many methods. From visual surveys, to nets, to electrofishing, we can design and complete your biotic surveys. We are also the creators of the High Definition Fish Survey (HDFS) methods. HDFS uses geo-referenced, underwater video cameras to document species occurrence, size, density and habitats in a rapid, low impact approach. We have successfully used this approach to survey streams from Maryland to Hawaii and document darters to smallmouth bass.


Fishery Parameters
·       Species present ·       Species biomass
·       Species size ·       Microhabitat conditions
·       Species number ·       Longitudinal distribution