This May be of Interest?
Aug 3, 2023 07:46:13 #
“I was only fishing in 15’...why does my walleye have barotrauma symptoms?”
– Interesting info from Saskatchewan Sportfish Research Group talking barotrauma, which typically happens when fish are caught out of deep water (30-ish ft).
But:
> “Walleye may seek refuge in deep water and make short forays into shallower areas to feed. They essentially give themselves partial barotrauma when they do this. However, without going all the way to the surface, and without the stress and exhaustion of being caught, the fish can tolerate the temporary pressure change and safely return to deeper depths on their own.
> “So if you are fishing a major shelf or dropoff in the heat, you may see some fish with over-inflated swim bladders despite presenting your bait in shallow depths.
> “The diagram below illustrates the concept – excuse my poor computer art! The green fish are neutrally buoyant at 45’...in summer they may take refuge from the heat at this kind of depth. Periodically these deep fish will move up into shallower water to find prey. These fish, in yellow, will be positively buoyant, but can use swimming power to move around and stay submerged. However, if one of these fish is angled and brought to the surface (red), it may have barotrauma symptoms and be difficult to release.”
Something to keep in mind....
I have never seen this happen but I fish mostly rivers.
“I was only fishing in 15’...why does my walleye have barotrauma symptoms?”
– Interesting info from Saskatchewan Sportfish Research Group talking barotrauma, which typically happens when fish are caught out of deep water (30-ish ft).
But:
> “Walleye may seek refuge in deep water and make short forays into shallower areas to feed. They essentially give themselves partial barotrauma when they do this. However, without going all the way to the surface, and without the stress and exhaustion of being caught, the fish can tolerate the temporary pressure change and safely return to deeper depths on their own.
> “So if you are fishing a major shelf or dropoff in the heat, you may see some fish with over-inflated swim bladders despite presenting your bait in shallow depths.
> “The diagram below illustrates the concept – excuse my poor computer art! The green fish are neutrally buoyant at 45’...in summer they may take refuge from the heat at this kind of depth. Periodically these deep fish will move up into shallower water to find prey. These fish, in yellow, will be positively buoyant, but can use swimming power to move around and stay submerged. However, if one of these fish is angled and brought to the surface (red), it may have barotrauma symptoms and be difficult to release.”
Something to keep in mind....
I have never seen this happen, but I usually fish rivers.
– Interesting info from Saskatchewan Sportfish Research Group talking barotrauma, which typically happens when fish are caught out of deep water (30-ish ft).
But:
> “Walleye may seek refuge in deep water and make short forays into shallower areas to feed. They essentially give themselves partial barotrauma when they do this. However, without going all the way to the surface, and without the stress and exhaustion of being caught, the fish can tolerate the temporary pressure change and safely return to deeper depths on their own.
> “So if you are fishing a major shelf or dropoff in the heat, you may see some fish with over-inflated swim bladders despite presenting your bait in shallow depths.
> “The diagram below illustrates the concept – excuse my poor computer art! The green fish are neutrally buoyant at 45’...in summer they may take refuge from the heat at this kind of depth. Periodically these deep fish will move up into shallower water to find prey. These fish, in yellow, will be positively buoyant, but can use swimming power to move around and stay submerged. However, if one of these fish is angled and brought to the surface (red), it may have barotrauma symptoms and be difficult to release.”
Something to keep in mind....
I have never seen this happen but I fish mostly rivers.
“I was only fishing in 15’...why does my walleye have barotrauma symptoms?”
– Interesting info from Saskatchewan Sportfish Research Group talking barotrauma, which typically happens when fish are caught out of deep water (30-ish ft).
But:
> “Walleye may seek refuge in deep water and make short forays into shallower areas to feed. They essentially give themselves partial barotrauma when they do this. However, without going all the way to the surface, and without the stress and exhaustion of being caught, the fish can tolerate the temporary pressure change and safely return to deeper depths on their own.
> “So if you are fishing a major shelf or dropoff in the heat, you may see some fish with over-inflated swim bladders despite presenting your bait in shallow depths.
> “The diagram below illustrates the concept – excuse my poor computer art! The green fish are neutrally buoyant at 45’...in summer they may take refuge from the heat at this kind of depth. Periodically these deep fish will move up into shallower water to find prey. These fish, in yellow, will be positively buoyant, but can use swimming power to move around and stay submerged. However, if one of these fish is angled and brought to the surface (red), it may have barotrauma symptoms and be difficult to release.”
Something to keep in mind....
I have never seen this happen, but I usually fish rivers.
Aug 3, 2023 07:49:31 #
flyguy wrote:
“I was only fishing in 15’...why does my walleye h... (show quote)
I'm sorry, I guess I studdered a little.
Aug 3, 2023 08:22:41 #
Aug 3, 2023 08:53:54 #
When I fush sea bass in December, there are lots of shorts. Since t g e water is 150 to 200 feet deep. You quite often return fish that can't swim back down because there over inflated. Have a separate rod with a sinker with a barbless hoo impeded point down. I use this to return fish to a depth they can swim in. Otherwise, the fugsh that you release is eaten by a gull sitting there waiting for you to toss one back. It would work in fresh water too.
Aug 3, 2023 14:34:51 #
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