This goes way back in time. In the 1970s I lived in the Hartford Ct. area I used yo fish with a friend who was big on hunting and fishing. We used to fish the lakes in the area for bass. We were pretty poor and we used a row boat. The one thing he head was a depth finder. We mostly used rubber worms and we out-caught all the guys in the expensive motorized bass boat.
We were able to locate the drop offs and that was where the fish tended to be. Without that depth finder we would have had to trust to luck.He lost a lot of money gambling
https://bonus-casinozer.com/ He would clean and filet what we caught and we would eat some great fish.
I have not fished since those years though.