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River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments
Benthic Macroinvertebrates
Gerris
Gerris
Water Striders
Taxa Hierarchy
Phylum
Arthropoda
Class
Insecta
Order
Hemiptera
Family
Gerridae
Genus
Gerris
Species
ITIS Links
TSN
103829
Parent TSN
103801
Metric Values
Tolerance
6.4
FFG
Predator
Habit
Unidentified
CW Ind
False
Assessment Program Statistics
Total Individuals Collected
219
Number of Unique Sites Collected
108
Taxa Distribution Map