After a week of some cooler weather, TNACI and CFI returned to the Conasauga River for two more days of field work. We spent the first day catching more Conasauga Logperch and the second day releasing juveniles at various locations in the Conasauga River.
On April 12 we worked a 3 mile stretch upstream of the site sampled on April 5. While the procedures for this week were the same as last week, the conditions were very different. The water temperature was 50°F when we arrived in the morning; cold enough that some members of the team wore dry suits. The rest of us wore 7 mm wet suits and everyone wore gloves and hoods to stay as warm as possible.
|Dr. Anna George in a dry suit.|
|Photographing and fin clipping Logperch|
|Conasauga Logperch (Percina jenkinsi)|
|Mobile Logperch (Percina kathae)|
|Hogsucker with a Lamprey attached|
Releasing captive-bred fish into the wild is much more complicated than just dumping a bag full of fish into a river. It takes scientific study and planning. During the previous two trips on the Conasauga, we took GPS coordinates of riffles so that we could designate release sites. We also had four groups of juveniles (distinguished by the color and placement of their fluorescent elastomer tags). Individuals from each group were designated to a release site.
|Tagged juvenile Conasauga Logperch.|
|Pat from CFI acclimating fish.|
|One of the release sites.|
|Evan getting ready to release Conasauga Logperch.|
We will be back on the Conasaua River soon to release the rest of this year's juveniles. We will then continue monitoring the population of wild Conasauga Logperch, and we hope to recapture some of these individuals in the future.