I didn’t watch Aaron’s video, but I did have the opportunity to read the whole DNR study. My question is: how is Aaron assessing mortality 24 and 48 hours post release?
A second question involves bias, and not that of the “testers”, but of the readers’. I suspect that if the sources were switched (Aaron’s “study” was swapped with the DNR’s), that many of the same folks who disagreed with the DNR would still disagree because many are biased against them, not the study.
Personally, until someone like Aaron can show me his scientific credentials, the results remain suspect. The folks who designed and conducted the DNR study have those credentials if a master’s degree in a hard science means anything.
I’ve got nothing bad to say about Aaron or his study. Just questions. Did he do what the DNR did and look at mortality rates 1 & 2 days post release? If not, his “data” is meaningless.
Is this the queen of England? If watching the video isn’t of interest to you, how could discussing the video possibly be worth your time?
Weibe’s complaint of the fish being over handled may be a little over-rated.
Mille Lacs band did a survey where they caught fish, took them to a centrally located boat, inserted a telemetry device into the fish, then returned them to the original location.
With all of that, they had 5% mortality.
This really shows the flaw in their hooking mortality rate, but it also shows that fish can handle a little more handling than we think.
One other note to consider, how often have you brought fish home in the winter that were laying on the ice, put them in water to rinse off and watched them revive and swim around.
The DNR’s study was a step in the right direction. Hopefully Weibe’s video will show them the flaws in their study, and they resolve them.
Hi Tom, I agree with you about how durable and resilient fish can be! They are simultaenously indestructible and extremely fragile. This dynamic is common among cold-blooded animals, and I think it’s more because we don’t relate with them, so the things that they can tolerate vs cannot are often against our thinking.
It all comes down to cumulative effects (or the cumulative affect). Typically, it seems a fish can survive almost any one bad stressor. But if that bad thing is combined with even one additional medium stressor, it has an exponential affect and fatal outcome. Some examples of bad stressors would be barotrauma, warm water, deeply-hooked, and extended handling time. When it comes to all four, there are massive unknowns with delayed mortality; however it seems like if there are no additional stressors, that the fish has a decent chance. I am not familiar with the study you mentioned, but I assume that barotrauma, warm water, and deeply-hooked were not involved at all to magnify the affect of the excessive handling you described.
Neither their pilot study or my video show anything about delayed mortality. The methods of their study killed the fish pre-emptively, and my video simply demonstrated that those were “releasable” fish. Still, I said countless times that deep water fishing has dangerous unknowns and is best avoided.
The DNR/Lindner study did not have a hidden agenda. Everyone on site meant well, but they had an anticipated outcome, and they all took for granted that the sum of the parts had a handle on things. It is worth considering that even after everything has been presented about this, many of the people in this conversation thread still have the same bias on this topic as the DNR/Lindners did beforehand.