Jigging still good at Blue Mesa
Although fish are schooled up at 80 ft deep trolling through the schools is not very productive but jigging can work very well. Please see my previous post above for some info about jigging techniques. The photos below show what the schools look like on my 14 year old sonar unit. This is the hunt, or "drive by" part of jigging. The Lowrance LMS 339 has dual frequencies, with the wide cone (about 40 ft diameter coverage at 80 ft deep) on the left and the narrow cone (about 15 ft diameter coverage at 80 ft deep) on the right. In the first photo the school is in the wide cone, so it is close by, but is just starting to show on the narrow cone, meaning the school is now directly below the boat. In the second photo we are right on top of the school -- we know this because the school shows clearly on the right side of the split screen. Please note the photos are from different days and the upper and bottom range selection varies a little.
In the third photo we see what the screens look like after sitting right on top of the fish for some time as the screen continues to scroll. In the fourth photo we are beginning to drift off the school or the school is moving from under us. The fish are near by (we are still marking them on the wide cone, but not on the narrow cone looking straight down). The horizontal line on the right side of the split screen is my lure deadsticked. In the last photo we are well off the school but I jigged my lure up and down, showing the transducer is pointed straight down so my lure is still under the boat but the fish are not.
With this old technology, when we see fish on the left side of the screen (wide cone) but not the right side (narrow cone), we don't know if the fish are straight ahead, to the left, or to the right. If the fish are directly below the boat, they will be shown at about 90 feet deep, but if they are off to the side, say 20 feet to the left of the boat, the distance from the transducer to the school will be more than 90 feet. As we move closer to the school, the school appears to get shallower. As we move away from the school, they appear to get deeper. So I try first to get close to the school using the wide cone. As I continue moving slowly, if the fish appear to be getting shallower, I keep moving slowly forward. If the fish appear to getting deeper, I turn the other way. The fish won't come to your lure, so you have to get directly on top of them and gently wiggle the lure in their faces. Today we caught 3 fish while a rod was deadsticked. I put my rod in a holder while netting a fish and watched the tip jump up and down while netting. When I return to my rod, I always set the hook.
The schools are not large, often only 10 ft or so in diameter. So even though the school shows on the narrow cone on the right, there may not be fish below the bow of the boat or the fish may be only on one side or the other. Staying on top of the fish is difficult with wind and, of course, those tricky fish move around some. Even with pretty decent skill, this requires patience, persistence and luck.
Hope this helps those who are thinking about a fish hunting trip to Blue Mesa. I expect jigging to continue for 2 - 3 more weeks.
Kokanee 64