Latest Electrofishing Survey at Shu Swamp

Steve operating the electrofishing equipment

Steve operating the electrofishing equipment

On Tuesday, March 11, we conducted an electrofishing survey of Beaver Brook. Steve DeSimone of CSHFH operated the backpacker, Heidi O’Riordan and Bob O’Connell of NYSDEC collected data, Maryanne Grey, Brian Bartlett (my Hofstra U grad students), and John Fischer (LITU) took on the netting responsibilities, while I helped with PIT-tagging captured brook trout.

Our biggest find was the collection of two YOY brook trout, each about 2 cm length. These guys were probably about 3 weeks old. Last year we didn’t detect brook trout during the electrofishing survey which occurred the first week of March. Our first observation of YOY last year was 3/11/2013 so that’s pretty close to the same time as this year. At any rate YOY have become a pretty regular happening at Shu Swamp.

Our first Young of the Year!

Our first Young of the Year!

We also caught 18 one year or older trout (last year we caught 19). For the first time we PIT-tagged wild trout before release. Now we will be able to see if there are any differences in their movements downstream. We also mapped the position of all captures. The online map will be updated to include these positions.

A yearling brook trout captured in our survey.

A yearling brook trout captured in our survey.

None of these fish had PIT-tagged. This was the same result we got last year. The 230+ hatchery fish we have PIT-tagged and released thus far have simply vanished!

Heat of swamp cabbage melted the snow in its vicinity.

Heat of swamp cabbage melted the snow in its vicinity.

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  1. Pingback: Day 1 of Operation Wild Brook Trout | Adopt-A-Trout

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