I posted this in the GPS/Sonar Tips section, but some of you might not have GPS and might find this useful, so am reposting it.
You are looking at a sonar view from a LMS332 color. I log my sonar sessions on a memory card that pops into a slot on the unit. This is one frame of it.
Manual zoom to bottom view. 40 feet depth. Lake Ouachita.
I found the bass, belly in the mud 40 feet down, lockjawed due to high pressure from the front that passed through. So I passed on the usual pre-spawn lures and tied on a 3/4 oz spinnerbait and bumped it 5 feet off bottom after first bumping bottom. The zig zag line is the track of the spinnerbait right under the bow trolling motor transducer. I was slowly drifting with wind, so the bait stayed with me straight down. I saw the first bass rise up so got set. Then a second bass, both holding around the edge of a brush pile (blob on bottom between fish), rose to investigate. One of them took it out of sonar view, then I set the hook. 2.5# largemouth. I'm not sure what made the end buzz zig zag, maybe the change in direction. Anyway, I wanted to show ya'll about the sloped lines showing fish swimming while the boat is nearly still. Trolling speeds give fish arches. Higher speeds give slices. Also note I knew exactly how deep the spinnerbait was, and how fish related to its action. I tried other presentations, but the 5 foot rise/fall five feet off bottom around cover was best. I'm guessing the bass were buried up in the brush piles. Caught 7 bass from 1.7# to 2.9# doing that, but none of those episodes showed up well on the sonar log.
Jim
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