CFI propagated the Redspot Darters in 2002 for USDA Forest Service, Southern Forest Reseach Station in Oxford, MS. We were tagging the otiliths of these fish with an oxytetracycline dye and then sending the fish to Susie Adams. Susie was analyzing the growth rate of the otoliths. This was very useful information because we knew their exact ages of the fishes when their otoliths were marked. Hopefully this information has been put to good use in darter aging by looking at the otoliths.
This was a wonderful species to work with and turned out to be a very easy fish to propagate.