1984-2003, Abundance and Diversity Statistics of Sampled Fish in USEPA Region 7 - Rivers and Streams Data Source: http://kars.ku.edu/geonetwork/srv/en/main.home | 1984-2003, Abundance and Diversity Statistics of Sampled Fish in USEPA Region 7 - Rivers and Streams |
---|
Date | 2008-11-05T16:31:00 |
---|
Date type | Publication: Date identifies when the resource was issued |
---|
Presentation form | Digital map: Map represented in raster or vector form |
---|
Abstract | This
database contains the biological indices from the fish data collected
from 16 Oct. 1984 to 09 Sep 2003 and compiled by CPCB from state
agencies in USEPA Region 7 for the Biocriteria Technical Assistance
Group, project FED35850 and FED41920. Six sources of data were merged: IDNR Ecoregions - Iowa Dept. of Natural Resource IDNR REMAP2 - Iowa Dept. of Natural Resource KDWP All - Kansas Dept. of Wildlife and Parks MDNR REMAP2 - Missouri Dept. of Conservation NDEQ pre-2002 - Nebraska Dept. of Environmental Quality Tristate CPCB - Kansas Biological Survey
From
the fish data, we calculated the following indices for each sampling
event. 1) Total Taxa Richness: Count of all taxa found at that site on
that date. 2) Simpsons D: Measures the probability that two individuals
randomly selected from a sample will belong to the same species, 0
represents infinite diversity and 1 represents no diversity. The
formula is D = [?n(n-1)]/N(N-1) where n = the total number of organisms
of a particular species and N = the total number of organisms of all
species. 3) Proportion Sensitive: Count of all sensitive taxa found at
that site on that date divided by total taxa richness expressed as a
proportion (i.e., 0.083 is 8.3%). Taxa were marked as sensitive based
on two documents that list sensitivities: 1. EPA Rapid BioAssessment
Protocols for Use in Wadeable Streams and Rivers Appendix C: Tolerance
and Trophic Guilds of Selected Fish Species. In that document, were
assigned tolerance values of I = intolerant (sensitive), M =
intermediate, and T = tolerant. 2. USEPA Dave Peck's Fish Autecology
table used in EMAP studies. If the two documents differed for a taxon,
we used either the more sensitive category or the category for the "corn
belt" region.
NOTE: For further information regarding the Taxonomic Serial Number, TSN, please contact the point of contact below. |
---|
Purpose | Research Central Plains Center for BioAssessment, CPCB, at the Kansas Biological Survey at the University of Kansas. |
---|
Credit | When
you use this data, we request that you acknowledge Central Plains
Center for BioAssessment at the Kansas Biological Survey at the
University of Kansas and any agency mentioned in the abstract, as
appropriate. |
---|
Status | Ongoing: Data is continually being updated |
---|
|
|