11. High quality streams have been designated for all Oklahoma ecoregions. High Quality Streams known to have high quality fish and macroinvertebrate populations, in-stream and riparian habitat, and water quality.
12. Blue Thumb staff works with volunteers to review stream data and compare it against the high quality streams.
13. Different fish and macroinvertebrate species have different abilities to tolerate pollution and habitat changes. How does the life in YOUR stream compare to the life in your ecoregion’s high quality streams?
38. Index of Biotic Integrity (IBI) scoring criteria for fish. <18% 18-36% >36% Proportion individuals as lithophilic spawners <20% 20-45% >45% Proportion insectivorous cyprinid individuals >25% 10-25% <10% Proportion tolerant individuals <33% 33-67% >67% Number of intolerant species <33% 33-67% >67% Number of sunfish species <33% 33-67% >67% Number of sensitive benthic species <33% 33-67% >67% Number of species 1 3 5 Metrics
39.
40. Index of Biotic Integrity (IBI) score interpretation for fish. Few species and individuals present; tolerant species dominant; diseased fish frequent E 20 – 37% Top carnivores and many expected species absent or rare; omnivores and tolerant species dominant D 47 – 57% Intolerant and sensitive species rare or absent C 67 – 73% Decreased species richness, especially intolerant species B 80 – 87% Comparable to pristine conditions, exceptional species assemblage A 97 – 100 % Attributes Condition % of reference
41. Physical Habitat + Biological Community Fish Bugs + Water Chemistry Stream Health Delaware Creek Coffee Creek
Volunteers go through a two day training that prepares them to collect chemical data.
Volunteers have help from Blue Thumb staff for fish collections and macroinvertebrate collections – Northern Studfish
Habitat information is recorded when fish are collected, and to a lesser degree during the macroinvertebrate collections. Taking information on substrate, riparian area condition, amount of shade over the water, depth, instream cover, etc.
Because the OCC WQ Division’s Rotating Basin Program, we also have “High Quality Streams” against which we can measure the volunteer monitored streams.
The high quality streams are from the various ecoregions, and it is by ecoregion that the average of the HQS with the volunteer monitored streams are compared. OK is rich in ecoregions, another reason why we live in a pretty special state.