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Marine Parks as a Fisheries Management Tool (Read 120663 times)
RecFisher
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Re: Marine Parks as a Fisheries Management Tool
Reply #240 - Dec 12th, 2008 at 10:10pm
 
freediver wrote on Dec 11th, 2008 at 9:27pm:
Nobody represents them. For some reason they prefer to think for themselves.


So representative or "peak" bodies are a waste of time then?
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freediver
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Re: Marine Parks as a Fisheries Management Tool
Reply #241 - Dec 12th, 2008 at 10:13pm
 
I'm sure they have some use. The RFA certainly doesn't seem to represent the views of it's members regarding marine parks.

BTW, what percentage of fishermen does the RFA claim to represent?
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RecFisher
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Re: Marine Parks as a Fisheries Management Tool
Reply #242 - Dec 12th, 2008 at 10:18pm
 
What uses do you think they serve then?
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freediver
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Re: Marine Parks as a Fisheries Management Tool
Reply #243 - Dec 12th, 2008 at 10:23pm
 
I'm not sure. I'm sure if you asked them they would tell you about all the great stuff they do. Maybe they teach children to fish, or hold cake stalls. There would be plenty of issues for which the recreational fishing community is far closer to a consensus, so there is no doubt some useful political role for them.
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RecFisher
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Re: Marine Parks as a Fisheries Management Tool
Reply #244 - Dec 16th, 2008 at 8:52pm
 
You really do have no idea then.
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tallowood
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Re: Marine Parks as a Fisheries Management Tool
Reply #245 - Feb 24th, 2009 at 9:02am
 
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Yadda
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Re: Marine Parks as a Fisheries Management Tool
Reply #246 - Feb 24th, 2009 at 1:40pm
 
tallowood wrote on Feb 24th, 2009 at 9:02am:




I'm not sure about setting 25 %, but i reckon fish sanctuaries / no take zones would be a good idea?


?????


Fish stocks could then increase safely within these areas, then spread out into regular 'fishing' grounds.

Why not?

Seems like a natural way to protect 'base' stocks - within protected areas.




Any negatives???



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"....And he said unto him, If they hear not Moses and the prophets, neither will they be persuaded, though one rose from the dead."
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pjb05
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Re: Marine Parks as a Fisheries Management Tool
Reply #247 - Feb 24th, 2009 at 2:37pm
 
Yadda wrote on Feb 24th, 2009 at 1:40pm:
tallowood wrote on Feb 24th, 2009 at 9:02am:




I'm not sure about setting 25 %, but i reckon fish sanctuaries / no take zones would be a good idea?


?????


Fish stocks could then increase safely within these areas, then spread out into regular 'fishing' grounds.

Why not?

Seems like a natural way to protect 'base' stocks - within protected areas.




Any negatives???





They (marine sanctuaries) would never have got this far if they weren't a superficially appealing idea. However if the idea is to sutainable use the marine resource then the jury is out as to whether they are any better than traditional methods of quotas, limits on the no of commercial licenses, trip limits, closed season etc. If you look at the field evidence then the countries with the most sustainable fisheries have got there by relying on the latter - not marine sanctuaries.

Then there are all the problems with marine reserves. There is a huge socio-economic fall out on coastal towns affected by them. The angling experience is degraded by the loss of most of the good fishing spots, overcrowing of those remaining, difficulty in complying (trying to keep track of lines drawn in the water), heavy fines or worse for usually innocent errors. People have bought houses by the beach with the idea of throwing a line only to have fishing banned there when a marine park was declared!     
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« Last Edit: Feb 24th, 2009 at 4:56pm by pjb05 »  
 
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tallowood
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Re: Marine Parks as a Fisheries Management Tool
Reply #248 - Feb 24th, 2009 at 5:17pm
 
Initially I was for mp but it seems that they were taken over by ideologues who it appears never have enough.

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Re: Marine Parks as a Fisheries Management Tool
Reply #249 - Feb 25th, 2009 at 9:46am
 
Yadda, most of the scientists involved agree with you, based on observations so far. Also, some of the traditional management techniques that get 'knee-jerk support' from fishermen, merely because they are more familiar, have serious problems in terms of sustainability of catches.

http://www.ozpolitic.com/fish/marine-parks-fisheries-management-tool.html
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pjb05
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Re: Marine Parks as a Fisheries Management Tool
Reply #250 - Feb 25th, 2009 at 10:08am
 
I wouldn't give FD's 'most scientists agree' proposition much credence. There is a well oiled propaganda machine promoting marine parks: greenies, activists, empire building marine park bureaucracies and politicised 'scientists'. Appeal to a bandwagon is a standard propaganda technique. A lot of the scientists most enthusiastic about marine parks actually receive generous financial support from the PEW Charitable trust. Funded by an oil company it has decided to target fishing (while remaining quiet on pollution and degadation) and marine parks are high on their agenda.

If you want to look at an unbiased review of the state of the science on marine parks I suggest a look at Ray Hilborn's "Faith Based Fisheries Paper", or one called "Burdens of Proof".
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Yadda
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Re: Marine Parks as a Fisheries Management Tool
Reply #251 - Feb 25th, 2009 at 11:52am
 
pjb05 wrote on Feb 25th, 2009 at 10:08am:
I wouldn't give FD's 'most scientists agree' proposition much credence.
There is a well oiled propaganda machine promoting marine parks
: greenies, activists, empire building marine park bureaucracies and politicised 'scientists'. Appeal to a bandwagon is a standard propaganda technique. A lot of the scientists most enthusiastic about marine parks actually receive generous financial support from the PEW Charitable trust. Funded by an oil company it has decided to target fishing (while remaining quiet on pollution and degadation) and marine parks are high on their agenda.

If you want to look at an unbiased review of the state of the science on marine parks I suggest a look at Ray Hilborn's "Faith Based Fisheries Paper", or one called "Burdens of Proof".




".....When WW II prevented fishing in the North Sea, fish stocks increased exponentially -- and there was a short-lived harvest bonanza in 1945-47. So what is this surprising and "astounding success"? Something unexpected?"
http://depts.washington.edu/mpanews/MPA13.htm




".....spillover of larger organisms and dispersal of larvae to areas outside reserves can lead to reserves sustaining or even increasing local fisheries.
.......The role of a marine protected area in enhancing local fisheries, through the emigration or spillover of exploitable fishes, was studied in a coral reef park (Mombasa Marine Park, Kenya) and fishery over a seven-year period during a time when the park's border changed and pull seines were eliminated. We measured catches before and after the park's establishment and during the management changes and compared these catches with the unmanaged side of the park. Additionally, we placed baited traps on both sides of the park over a full tidal cycle which allowed us to measure the spillover from the park compared to the deeper, rougher, and less fished reef edge. The total wet mass of catches per trap, the mean size of the trapped fish, and the number of fish species caught per trap declined as a function of the distance away from the park edge on both the southern and northern sides.
......It is hypothesized that marine reserves will help to sustain fisheries external to them by becoming net exporters of adults (the ‘‘spillover effect’’) and net exporters of propagules (the ‘‘recruitment effect’’). Local fishery benefits from spillover will likely generate support from fishing communities for marine reserves. We used underwater visual census to show that biomass of Acanthuridae (surgeonfish) and Carangidae (jacks), two families of reef fish that account for 40–75% of the fishery yield from Apo Island, Philippines, tripled in a well-protected no-take reserve over 18 years (1983–2001). Biomass of these families did not change significantly over the same period at a site open to fishing."
http://www.dfg.ca.gov/MLPA/science2.asp


Google,
"no take area" fish stocks "north sea"
http://www.google.com.au/search?hl=en&q=%22no+take+area%22+fish+stocks+%22north+...

"no take area" fish stocks atlantic
http://www.google.com.au/search?hl=en&q=%22no+take+area%22+fish+stocks+atlantic&...


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"....And he said unto him, If they hear not Moses and the prophets, neither will they be persuaded, though one rose from the dead."
Luke 16:31
 
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pjb05
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Re: Marine Parks as a Fisheries Management Tool
Reply #252 - Feb 25th, 2009 at 12:12pm
 
Those cut and pastes lack any assessment of fishing effort Yadda. It would be nice if you put some of your own comments in and an explanation of what those quotes are meant to prove. Most of them come from heavily over exploited areas outside Australia. The coral reef in the Philippines was fished with cyanide and explosives and then factory ships moved in. In contrast most of our GBR was hardly fished at all. The quotes don't consider that properly implimented management strategies other than marine parks would also achieve improvements to fish stocks.
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Re: Marine Parks as a Fisheries Management Tool
Reply #253 - Feb 25th, 2009 at 6:29pm
 
PJ your whole argument seems to revolve around a vast conspiracy involving the scientific community deliberately misleading the public. Sometimes you just have to accept the facts.
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pjb05
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Re: Marine Parks as a Fisheries Management Tool
Reply #254 - Feb 25th, 2009 at 6:52pm
 
freediver wrote on Feb 25th, 2009 at 6:29pm:
PJ your whole argument seems to revolve around a vast conspiracy involving the scientific community deliberately misleading the public. Sometimes you just have to accept the facts.


FD, you have misrepresented my argument and then knocked the made up argument down = strawman. Rather lazily too, you merely say that you have the 'facts'. Actually the argument in my last post was that quoting marine reserve results from seriously overfished and overseas waters and using them to justify marine parks in our waters is chareletonism. As is not considering if other methods would achieve similar benifits. Richard Tizley described it as scientific fraud. Now there's a few facts for you.
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