12-02-2017, 09:30 PM
Working with NRO DWR on these species Chris Penne provided the following information to me.
In April DWR stocked walleye at 4 days old placing fry in coolers for a few hours for an absorption bath of oxytetracycline (OTC) Pic 1 and Pic 2. OTC binds to calcified structures and is best detected in the earbones (otoliths) fluoresces (glows) when put under UV light pic 4. The fall Oct sampling these fish were 8-12" Pic 3 so natural reproduction along with the stocked fry results were very impressive. Chris's walleye study is about 2/3 complete he told me.
Next and in the very beginning stages once the Walleye Study is complete is the Pineview tiger muskie study using the pelvic fin ray clipped by trained chapter 65 members.
Chris provided 3 fin ray samples he aged. Age is determined very similiar to the rings on a tree. Pic 5 is a 3yo 33.50" F, Pic 6 is a 5yo 34" M, Pic 7 is a 8yo 44".
Several chapter members were invited and visited the NRO office and were given a through briefing by the technician on all the steps involved in prepping tiger muskie fin rays for aging. Totally tedious work for sure and these folks work very hard on studies.
The tiger muskie study is the first of its kind in the nation and has a lot of interest not only in the state but on a national level. As there is very little known data on this hybrid species.
Good stuff as far as I'm concerned. Enjoy the pictures
[signature]
In April DWR stocked walleye at 4 days old placing fry in coolers for a few hours for an absorption bath of oxytetracycline (OTC) Pic 1 and Pic 2. OTC binds to calcified structures and is best detected in the earbones (otoliths) fluoresces (glows) when put under UV light pic 4. The fall Oct sampling these fish were 8-12" Pic 3 so natural reproduction along with the stocked fry results were very impressive. Chris's walleye study is about 2/3 complete he told me.
Next and in the very beginning stages once the Walleye Study is complete is the Pineview tiger muskie study using the pelvic fin ray clipped by trained chapter 65 members.
Chris provided 3 fin ray samples he aged. Age is determined very similiar to the rings on a tree. Pic 5 is a 3yo 33.50" F, Pic 6 is a 5yo 34" M, Pic 7 is a 8yo 44".
Several chapter members were invited and visited the NRO office and were given a through briefing by the technician on all the steps involved in prepping tiger muskie fin rays for aging. Totally tedious work for sure and these folks work very hard on studies.
The tiger muskie study is the first of its kind in the nation and has a lot of interest not only in the state but on a national level. As there is very little known data on this hybrid species.
Good stuff as far as I'm concerned. Enjoy the pictures
[signature]