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Author Topic: Not too late to save BC's salmon, say researchers  (Read 2458 times)

chris gadsden

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Not too late to save BC's salmon, say researchers
« on: June 02, 2010, 11:31:51 AM »
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DionJL

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Re: Not too late to save BC's salmon, say researchers
« Reply #1 on: June 02, 2010, 12:35:38 PM »
Different article, same story.

Read Here
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VAGAbond

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Re: Not too late to save BC's salmon, say researchers
« Reply #2 on: June 03, 2010, 01:18:17 PM »
Quote
protecting weak stocks from over-harvesting in mixed stock fisheries,

Gillnets and seine nets are a problem in being non-selective in spite of managed fisheries.    There is an old argument that going  back to estuary fish traps allows very selective harvesting and where there are still mixed stocks, they can be sorted and the non-target group released unharmed.  This approach is far better than our other netting methods and needs to be suggested again and again.   The problem is who gets the rights to the traps.
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chris gadsden

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Re: Not too late to save BC's salmon, say researchers
« Reply #3 on: June 03, 2010, 09:46:55 PM »
From the Vancouver Sun today.


Dams, mines, forestry and overfishing wiped out many populations. The problems have been compounded by misguided and often costly management efforts and "techno-fixes" -- such as releasing millions of salmon from hatcheries and building spawning channels that weaken the "portfolio effect" because they favour only some populations, says Schindler.


Schindler says habitat restoration needs to be made a policy priority, along with giving the salmon populations time to "rediversify." But he warns that climate change poses threats that could prove to be too much for some salmon: "If rivers become too warm, all bets are off."



http://www.vancouversun.com/technology/Remote+Alaskan+sockeye+salmon+offer+clues+long+term+survival/3105808/story.html

The trouble is too many of our governments are not looking after the habitat and the environment that is so crucial to have any hope of some salmon stocks rebounding and are actually destroying it every year by putting business before good management. Maybe we have to slow down growth and not to expect to have so much. Chris
« Last Edit: June 03, 2010, 09:56:45 PM by chris gadsden »
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adriaticum

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Re: Not too late to save BC's salmon, say researchers
« Reply #4 on: June 06, 2010, 09:51:32 AM »
This does make sense to me.
The bigger the variety of populations of fish the better the chances of developing a population that can evolve to cope with the climate changes.
Salmon have survived for thousands of years and have seen these climate changes already.
The biggest problem they have walks upright on two legs with opposable thumbs.

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