Further evidence fish farming harms native salmon

[avb3]

We for some time have heard about issues with salmon farms and suspected diseases that affects wild salmon and other species.

The problem is that greenies like Suzuki jump on it, and many of us are programmed to disregard everything he says, as so many of his thoughts are on the extreme.

Here is a new Simon Fraser study (http://goo.gl/XoBpm) that shows the connection is real and pervasive.

[alwaysfishn]

Thanks for posting. Looks like they will have a chance to tell the Cohen commission.

[walking buffalo]

Here is the summary of the actual study. It describes how they came up with their conclusion, and why they believe the conclusions of the Marty et al. 2010 study are wrong.

Another conclusion that can be made from the information, there is a severe lack of understanding or concerns by government and industry to potential impacts of salmon aquaculture in wild salmon waters. Very similar to Game farming issues.

http://www.saveoursalmon.ca/files/Krkosek_et_al_2011.pdf

Some previous results have discounted a need for aquaculture
management and policy that could protect wild salmon from sea
lice (15). Currently, a moratorium on aquaculture development
exists on the (mostly) undeveloped central coast of British Columbia,
and there is a coordinated area management plan in the
Broughton Archipelago (and many areas of Europe) that combines
fallowing and parasiticides to constrain lice numbers. Such
management changes may also be of value in other regions of
British Columbia where infestations of wild juvenile salmon have
also occurred (7, 44) and to control other diseases within and
between farms (45–47). Although our results identify a negative
association between louse abundance on farms and productivity
of wild salmon in the Broughton Archipelago that is supported
by underlying mechanisms of transmission and mortality (6, 10,
35), it is possible that other unknown factors that are spatially
and temporally correlated with lice on farms may underlie our
results. Nevertheless, our results indicate that the management
and policy recommendations in ref. 15 are not supported, nor is
their suggestion that lice may provide a food provision for juvenile
salmon that improves productivity. Rather, initiatives that
protect wild salmon from lice should yield fishery and conservation
benefits.