Truesdale Lake  

South Salem, New York


This is a private lake and fishing is residents-only from private docks or from boats with blue registration stickers. All fishing from the bridge and the entire dam, all boatyards, all beaches and the entire exposed lakebed during drawdowns is prohibited.

Fish Found at Truesdale Lake

There are some good size largemouth bass, crappies, perch, and sunfish in the lake. There have been a few pickerel caught over the years. Ice fishing can very productive and fun. Mainly catch yellow perch during the winter. Fish life is abundant at the lake and residents have much success with many different types of bait and lures.

Fishing Rules at Lake Truesdale

Truesdale Lake is a private lake with no public access allowed. All fishing access is either from private property, docks, or registered boats. If you see someone fishing from a boat without the proper lake permit sticker — and determine they are not a resident with access to the lake — please inform them politely that they are trespassing and they should leave. If they do not leave, try to determine where they came in and if they have a car. Jot down the license plate number if they have a car and call the Lewisboro Police and report the trespass. The Police can take it from there.

Why such a restrictive sounding attitude? We already pay tens of thousands of dollars a year to control invasive plants on the lake. Having illegal boats on the lake brings the very real possibility of introducing more invasives into the Truesdale Lake ecosystem. It may sound harsh, but so is an extra ten thousand dollars needed to eradicate a new invasive and destructive plant species not seen before in the lake.

Note on Fish Health

Each spring at the lake edges you will see signs of Sunfish spawning. The sunfish create circular ‘nests’ by fanning away debris and exposing the rocks or sand below. They aggressively defend these nests from others in the water, including humans. If you have ever been wading in the water of Truesdale Lake and been rammed in the legs by a sunfish when you get too close to their nest you will know what I mean. They look small but you will be in for a surprise when they swim into your legs.

Another occasional spring and early summer sight is dead sunfish along the bank. Based on information from the Connecticut DEP, we can say that this is a natural part of the sunfish life cycle, affecting the weaker fish during and after spawning.

from the story here:

The state Department of Environmental Protection and the city said the problem appears to strictly involve sunfish, noting there are other fish, birds and turtles at the pond showing no ill effects. The DEP said that happens every year in New Britain and other parts of the state, to varying degrees, because it’s the spawning season for the species.

“The sunfish have a virus or bacteria when they spawn,” Parks and Recreation Commission Director Bill DeMaio said. “I’m told that they don’t eat properly and they become less healthy, just like human beings would be if you didn’t eat, and they pass the bacteria to each other.”

Fish deaths can also be caused in a number of other ways. Smaller fish can be chased into shallow water by larger predators and get stuck in weeds and unable to get free. Also, in warmer months, the oxygen levels of the lake go down as the water heats up. This causes the weaker fish to die off.

Truesdale Lake has tens of thousands of fish all different sizes. Our lake manager, Allied Biological, has said that dead fish are nothing to get alarmed about in small quantities (10+ on a typical waterfront) and are normal for lakes (especially at the end of a spawn or in the dog days of August). However, if you notice dead fish in larger quantities (over 100) then there may be something else going on and please let us or Allied know.

(up to date page here: original writeup here: