15 Trout Limit Discussion PUBLIC

[Salty]

Originally Posted by huntin fool

Regardless pressure does not cause near the damage that overpopulation does.

With all the boats running around that small body of water every day.....you cannot tell me that it does not matter to big trout. Big Lake is overpopulated alright....with boats.

[huntin fool]

Originally Posted by Salty

With all the boats running around that small body of water every day.....you cannot tell me that it does not matter to big trout. Big Lake is overpopulated alright....with boats.

That boat running over the hole ain't going to affect the feeding pattern. It may displace the fish, but they still have to compete for bait with all the other trout.
I'm no biologist, but
I just can't see boating affecting it as much as overpopulation.

[Salty]

Originally Posted by huntin fool

That boat running over the hole ain't going to affect the feeding pattern. It may displace the fish, but they still have to compete for bait with all the other trout.
I'm no biologist, but
I just can't see boating affecting it as much as overpopulation.

It'll damn sure affect the catchin' pattern.

[clay67]

I find it interesting that no one has mentioned the fact that the lake is no longer fished commercially. I'm sure most people that have been around awhile know what kind of numbers used to be taken out of that lake.

[MathGeek]

Interestingly, Louisiana recently adopted (in 2006) a spatially-explicit management plan for Calcasieu Lake. The premise of this management decision, which included a reduction in daily bag limits and imposition of a slot limit, was to ‘preserve’ the renowned trophy-fishery for spotted seatrout in Calcasieu Lake. However, the decision to enact this regulation was based exclusively on socio-economic factors, rather than the biological status of the subpopulation. In fact, no formal stock assessment was conducted as part of the decision-making process. Thus, the status of the subpopulation (stock) was largely unknown (i.e., overfished or not?) at the time regulations were changed. While perhaps setting a bad precedent for fisheries management (i.e., making a decision based purely on socioeconomic reasons), this situation affords a unique opportunity to evaluate the response of spotted seatrout to a spatially-explicit (estuarine-scale) regulations change (i.e., adaptive management, sensu Hilborn and Walters 1992).

from Callihan PhD thesis LSU 2011 p. 182

["W"]

Originally Posted by MathGeek

Interestingly, Louisiana recently adopted (in 2006) a spatially-explicit management plan for Calcasieu Lake. The premise of this management decision, which included a reduction in daily bag limits and imposition of a slot limit, was to ‘preserve’ the renowned trophy-fishery for spotted seatrout in Calcasieu Lake. However, the decision to enact this regulation was based exclusively on socio-economic factors, rather than the biological status of the subpopulation. In fact, no formal stock assessment was conducted as part of the decision-making process. Thus, the status of the subpopulation (stock) was largely unknown (i.e., overfished or not?) at the time regulations were changed. While perhaps setting a bad precedent for fisheries management (i.e., making a decision based purely on socioeconomic reasons), this situation affords a unique opportunity to evaluate the response of spotted seatrout to a spatially-explicit (estuarine-scale) regulations change (i.e., adaptive management, sensu Hilborn and Walters 1992).

from Callihan PhD thesis LSU 2011 p. 182

Socioeconomics= a very small group of people who are office fisherman, who spend less than 30 days a year on our waters but think they have the right to change the whole ecosystem

[ckinchen]

Originally Posted by MathGeek

Interestingly, Louisiana recently adopted (in 2006) a spatially-explicit management plan for Calcasieu Lake. The premise of this management decision, which included a reduction in daily bag limits and imposition of a slot limit, was to ‘preserve’ the renowned trophy-fishery for spotted seatrout in Calcasieu Lake. However, the decision to enact this regulation was based exclusively on socio-economic factors, rather than the biological status of the subpopulation. In fact, no formal stock assessment was conducted as part of the decision-making process. Thus, the status of the subpopulation (stock) was largely unknown (i.e., overfished or not?) at the time regulations were changed. While perhaps setting a bad precedent for fisheries management (i.e., making a decision based purely on socioeconomic reasons), this situation affords a unique opportunity to evaluate the response of spotted seatrout to a spatially-explicit (estuarine-scale) regulations change (i.e., adaptive management, sensu Hilborn and Walters 1992).

from Callihan PhD thesis LSU 2011 p. 182

Good find, thanks.

[jchief]

Originally Posted by MathGeek

Interestingly, Louisiana recently adopted (in 2006) a spatially-explicit management plan for Calcasieu Lake. The premise of this management decision, which included a reduction in daily bag limits and imposition of a slot limit, was to ‘preserve’ the renowned trophy-fishery for spotted seatrout in Calcasieu Lake. However, the decision to enact this regulation was based exclusively on socio-economic factors, rather than the biological status of the subpopulation. In fact, no formal stock assessment was conducted as part of the decision-making process. Thus, the status of the subpopulation (stock) was largely unknown (i.e., overfished or not?) at the time regulations were changed. While perhaps setting a bad precedent for fisheries management (i.e., making a decision based purely on socioeconomic reasons), this situation affords a unique opportunity to evaluate the response of spotted seatrout to a spatially-explicit (estuarine-scale) regulations change (i.e., adaptive management, sensu Hilborn and Walters 1992).

from Callihan PhD thesis LSU 2011 p. 182

Old news.

["W"]

Originally Posted by jchief

Old news.

Really ....did not know that.....thanks for letting us know......its on my sig.....how could that be

We only quoted 5 times in this thread alone

Great catch

[MathGeek]

Originally Posted by MathGeek

Interestingly, Louisiana recently adopted (in 2006) a spatially-explicit management plan for Calcasieu Lake. The premise of this management decision, which included a reduction in daily bag limits and imposition of a slot limit, was to ‘preserve’ the renowned trophy-fishery for spotted seatrout in Calcasieu Lake. However, the decision to enact this regulation was based exclusively on socio-economic factors, rather than the biological status of the subpopulation. In fact, no formal stock assessment was conducted as part of the decision-making process. Thus, the status of the subpopulation (stock) was largely unknown (i.e., overfished or not?) at the time regulations were changed. While perhaps setting a bad precedent for fisheries management (i.e., making a decision based purely on socioeconomic reasons), this situation affords a unique opportunity to evaluate the response of spotted seatrout to a spatially-explicit (estuarine-scale) regulations change (i.e., adaptive management, sensu Hilborn and Walters 1992).

from Callihan PhD thesis LSU 2011 p. 182

Note that this 2011 PhD dissertation not only says that the rule changes were not justified by biological considerations, it also says that the rule changes afford an opportunity to evaluate the response of the spotted seatrout population to the rule changes.

In other words, the assertion is that current assessments of the spotted seatrout population in Big Lake would be measuring the impact of lowering of the limit and slot rather than other things like hurricane Rita which have been asserted by others in the discussion as potentially confounding factors. The dissertation studies the impact of changes in salinity and meteorological effects of things like tropical storms, and yet it concludes that impact of the regulation change can be measured through standard stock assessment methods.

And this is not only the opinion of the author, Dr. Jody Callihan, as the thesis was carefully reviewed by his thesis advisor, Dr. Jim Cowan, a Professor in the Department of Oceanography and Coastal Sciences at LSU. Dr. Cowan is a national leader in the biology of estuarine fishes having authored dozens of papers, overseen millions in research dollars, and served on the editoral board of several prestigious fisheries journals. Dr. Callihan's PhD Dissertation was also reviewed and approved by Dr. Jaye E. Cable, now a Professor in Marine Sciences at UNC-Chapel Hill and Dr. James Geaghan, Professor and Dept. Head in the LSU Dept. of Experimental Statistics.

["W"]

Originally Posted by MathGeek

Note that this 2011 PhD dissertation not only says that the rule changes were not justified by biological considerations, it also says that the rule changes afford an opportunity to evaluate the response of the spotted seatrout population to the rule changes.

In other words, the assertion is that current assessments of the spotted seatrout population in Big Lake would be measuring the impact of lowering of the limit and slot rather than other things like hurricane Rita which have been asserted by others in the discussion as potentially confounding factors. The dissertation studies the impact of changes in salinity and meteorological effects of things like tropical storms, and yet it concludes that impact of the regulation change can be measured through standard stock assessment methods.

And this is not only the opinion of the author, Dr. Jody Callihan, as the thesis was carefully reviewed by his thesis advisor, Dr. Jim Cowan, a Professor in the Department of Oceanography and Coastal Sciences at LSU. Dr. Cowan is a national leader in the biology of estuarine fishes having authored dozens of papers, overseen millions in research dollars, and served on the editoral board of several prestigious fisheries journals. Dr. Callihan's PhD Dissertation was also reviewed and approved by Dr. Jaye E. Cable, now a Professor in Marine Sciences at UNC-Chapel Hill and Dr. James Geaghan, Professor and Dept. Head in the LSU Dept. of Experimental Statistics.

You mean these guys know more that the office fisherman who ran to Baton Rouge??? Man that's hard to believe that someone who studies this kind of thing is overlooked by a hand full of people who out of greed want to control the lake





Wait it's Louisiana , Almost forgot

[Evans]

Originally Posted by clay67

I find it interesting that no one has mentioned the fact that the lake is no longer fished commercially. I'm sure most people that have been around awhile know what kind of numbers used to be taken out of that lake.

I talked to my uncle Sat about this. He has been fishing lake 30+ years he even said something about the ban of gill nets and the amount of fish that was taking out the lake with them. And I did think gill netting needed to stop I'm just saying!