Smallmouth bass die quicker than Largemouth bass in bass boat livewells – low to no oxygen kills bass Smallmouth bass die quicker than Largemouth bass in bass boat livewells – low to no oxygen kills bass
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    Smallmouth bass die quicker than Largemouth bass in bass boat livewells – low to no oxygen kills bass
from Te #14139 #14139  
6/29/2012 2:48:31 PM


This probably has alot to do with the DNR regulating the Elite’s Green Bay tournament this summer. From the conservation and tournament fish care point of view, the Wisconsin DNR is justified and should be praised for their actions, someone, anyone needs to look out for those smallies in this abnormal heat. Like they said, this is about keeping bass alive, stopping a tournament kill before it happens in this heat.

Check out the science that demonstrated Smallmouth bass do suffocate quicker without enough oxygen in livewells than largemouth bass – this was published by the American Fisheries Society 11 years ago in 2003. If you missed this, here it is again.

“Respiratory and Circulatory Responses to Hypoxia in
Largemouth Bass and Smallmouth Bass: Implications for ‘‘Live-Release’’ Angling Tournaments”

The results of the present study also have important implications for fisheries’ management. In our experience, hypoxia [low dissolved oxygen saturation during tournament captivity] is one of the most significant factors contributing to fish mortality during live-release angling tournaments.

When adequate precautions are not taken, hypoxia may occur at any of several different stages at these events, including live well holding, bag confinement, weigh-in air exposure, and the holding tanks of the live-release vessels used to disperse the fish at the end of the event.

Since angling tournaments normally target the largest fish in a given system, tournaments that include smallmouth bass should take extra precautions to ensure that sufficient oxygen levels are provided at each stage of the event.

In the future, tournament organizers and fisheries managers should develop guidelines for appropriate oxygen thresholds based on the needs of smallmouth bass, rather than those of largemouth bass, in regions where these two species coexist.

MAROSH FURIMSKY, Department of Biology, Queen’s University, Kingston, Ontario K7L 3N6 Canada

STEVEN J. COOKE, Department of Natural Resources and Environmental Sciences,

University of Illinois and Center for Aquatic Ecology, Illinois Natural History Survey, Champaign, Illinois 61820, USA

CORY D. SUSKI, YUXIANG WANG, AND BRUCE L. TUFTS*, Department of Biology, Queen’s University, Kingston, Ontario K7L 3N6 Canada
ransactions of the American Fisheries Society 132:1065–1075, 2003

The fat’s in the fire now boys and government intervention is upon us, we should have taken those tournament bass kills more serious and made a real honest effort to insure the catch had enough oxygen, any effort to a better job while there was time years ago when we knew there was oxygen problems in bass boat livewells in summer tournaments.

Now time has run out in Wis., State Politicians and the long arm of the Law has taken positive steps and put the Green Bay BassMaster’s Elite Tournament, summer 2012 in a small box and closed the gate setting a conservation example there – their new rules have effectively eliminated excessive tournament kill in this fishing tournament with a $1.49 ball point pen.

You can bet that other State game agencies and politicians are watching this one closely because they see the same problems every summer.

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   New study needed then from JerseyBasser  6/29/2012 2:57:19 PM
Bass boat livewells have came a long way with technology in 11 years.Just saying,oxygen generators and other ways make it a lot better these days.

   Well Duh from Skipper  6/29/2012 3:49:17 PM
Yes, smallmouth will die quicker in a livewell than largemouth. It's not rocket science.

Largemouth are genetically geared to lakes, swamps, or other shallow non-moving bodies of water.

Smallmouth demand clear clean moving water. They like moving streams, river shoals, and deep cool water in lakes.

Common sense without a government study would tell one that they aren't going to like a livewell.

   mid 80's in green bay today from Beartrap   6/29/2012 4:44:46 PM
and i believe i read water temps were in mid 60's......the DNR has no problem with catch and eat so what's the problem with catch and release....

   Oxygen Generators for bass boat livewells - look and see what you really bought from Te #14139 #14139  7/1/2012 7:43:57 AM
You brought up an interesting point JB. Do you have and use those oxygen generators in your livewells? Or do you know of anyone else that uses them? If you do use them, you might take a moment and really see just what you have bought.

Texas Parks and Wildlife Department, Inland Fisheries Division tested them and they found some very disappointing results. Here- check it out yourself, see what you really bought.

AquaInnovations Oxygenator published by TPWD 2-14-2012



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