Can submarine passive sonar hear small boat depth sounder?

In early 1960's I (an ET) stood sonar watches on a diesel boat older than me. Fast forward 1980's I had a small but mighty sailboat. I always made sure the depth sounder was on while in areas that a submarine might be operating in hope that they could hear it. Can't make a turns count on a sloop rig, and a surprise involving a submarine is often unpleasant for someone.

Was my hope in vain?