HDFS methods are a faster and lower impact option for T&E and recreational fish studies.
Fish studies can be time consuming, costly and inaccurate due to equipment associated with traditional electro-shocking or netting techniques. Netting and electro-shocking can also harm fish. Finally, such techniques merely indicate the presence of fish without showing them in their native environment. The HDFS technique is low-impact and will produce more information with more coverage over a shorter period of time. HDFS also documents fish in their native environment. Better information will lead to better recreational planning and preservation efforts.
Trutta’s High Definition Fish Surveys (HDFS) use geo-referenced, underwater video cameras to visually document species occurrence, size, density and habitats. HFDS mobility and video documentation methods make it substantially faster and lower-impact than shocking or netting. HDFS has documented species from darters to smallmouth bass across the U.S. HDFS has also been used in conjunction with traditional methods.