Aquaculture improving?..The Fish Farm Thread
- Thread starter islandboy
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The PR firms from the industry are well-paid; as is DFO's communication Branch - all to baffle, confuse & BS the general public.
There are so many important differences in rearing Atlantic salmon in the water as compared to "chicken" farming - it is hard to know where to begin. But re-browse those articles I posted - it'll start the common sense neurons - or it should.
There are so many important differences in rearing Atlantic salmon in the water as compared to "chicken" farming - it is hard to know where to begin. But re-browse those articles I posted - it'll start the common sense neurons - or it should.
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Yeah salmon farms are the worst ... all other types of farming have no impact at all....... keep telling your self that at the grocery store. As stated I beleive there are positive and negatives to all farming or harvesting by all sectors..... once the engos kill salmon farming ...... who is next ??
I would instead be more accurate & precise in my critiques.
1/ the ONPSF technology offers no separation between wild & cultured stocks and hence no mitigation of wild/cultured stock interactions due to water flow (unlike the comparisons to terrestrial agriculture). It is "open".
2/ that water flow is not assessed nor recognized, neither in these interactions - incl. tidal excursions, & estuarine flow. Mike Foreman has done extensive work on this that DFO has consistently refused to use since the industry does not wish to be restricted in any way:
3/ no defensible siting criteria is required - also no environmental assessment of the sensitive locations of nearshore rearing and smolt migratory routes are used in approval of fish farm sites. This is no mistake.
1/ the ONPSF technology offers no separation between wild & cultured stocks and hence no mitigation of wild/cultured stock interactions due to water flow (unlike the comparisons to terrestrial agriculture). It is "open".
2/ that water flow is not assessed nor recognized, neither in these interactions - incl. tidal excursions, & estuarine flow. Mike Foreman has done extensive work on this that DFO has consistently refused to use since the industry does not wish to be restricted in any way:
Modelling Infectious Hematopoietic Necrosis Virus Dispersion from Marine Salmon Farms in the Discovery Islands, British Columbia, Canada
Finite volume ocean circulation and particle tracking models are used to simulate water-borne transmission of infectious hematopoietic necrosis virus (IHNV) among Atlantic salmon (Salmo salar) farms in the Discovery Islands region of British Columbia, Canada. Historical simulations for April and...
journals.plos.org
The ability of hydrodynamic models to inform decisions on the siting and management of aquaculture facilities in British Columbia / M.G.G. Foreman ... [et al.].: Fs70-5/2015-005E-PDF - Government of Canada Publications - Canada.ca
Publication information / bibliographic Record.
publications.gc.ca
3/ no defensible siting criteria is required - also no environmental assessment of the sensitive locations of nearshore rearing and smolt migratory routes are used in approval of fish farm sites. This is no mistake.
Bryan Allen
Well-Known Member
Hello Chronic Wasting Disease (CWD), Bovine Tuberculosis (bTB), and Schmallenberg virus.
Hello PRv, ISA, IPN, BKD, VHS, Salmonid alphavirus (SAV), Betanodavirus (NV), Aeromonas salmonicida, Yersinia ruckeri, Tenacibaculum maritimum, sea lice & other pathogens.
Glad you recognize the risk and the inadequacy of the ONP technology to separate wild & cultured stocks.
(p.621) The dynamics of infectious diseases in the oceans differ from those on land in several ways (McCallum et al. 2004). First, ocean
environments have fewer barriers to the movement of hosts and pathogens. Second, large migrations of fish are common, and
ocean currents can carry both hosts and pathogens for long distances. Third, common behaviours such as aggregation of fish
hosts in shoals and schools can further facilitate disease spread. As a result of these differences, infectious diseases have rates of
spatial spread in the oceans that are one to two orders of magnitude faster than on land (McCallum et al. 2003). For example,
herpes epidemics of Australian pilchards (Sardinops sagax) in the 1990s (Jones et al. 1997; Gaughan 2001) spread at 10 000 km per
year (McCallum et al. 2003).
Infectious agent release and Pacific salmon exposure at Atlantic salmon farms revealed by environmental DNA - Scientific Reports
The potential risk posed by infectious agents (IAs) associated with netpen aquaculture to wild fishes is determined based on the “release” of IAs from netpens into the environment, the “exposure” of the wild fish to those released agents, and the “consequence” for wild fish experiencing...www.nature.com
Compared to other types of animal production facilities, netpen aquaculture faces enhanced risk for IA
transfer because nets provide no barrier against the flow of water, which can both convey agents long distances3
and provide a matrix within which they may persist
The introduction of large captive populations of domesticated Atlantic salmon, and in some cases Chinook salmon (Oncorhynchus
tshawytscha), into coastal ecosystems inhabited by wild salmon and many other wild fish species, has created opportunities for
novel ecological and evolutionary dynamics of their pathogens (3, 4). The abundance and density of fish in salmon farms present
ideal conditions for the growth of viruses, bacteria, and parasites (4–6) (collectively “pathogens”). This can create a new source of
transmission to wild Pacific salmon that would not exist naturally (6), and the associated risks are likely to be elevated whether or not
a pathogen is exotic. Examples of how salmon farms alter disease dynamics include pathogen introductions, amplification, spillover
and spill-back between wild and farmed salmon (7–9), pathogen adaptation to new hosts (10), and the evolution of drug resistance
(11, 12) and virulence (13, 14). These changes to disease dynamics have impacts on the health (15, 16), growth (17), survival (18, 19),
and recruitment (20, 21) of wild salmon. These pathogen interactions may be a primary mechanism for the association between
salmon aquaculture development and wild-salmon declines observed in Europe, eastern Canada, and BC (22).
Bryan Allen
Well-Known Member
Nailed it AA
AA and I agree on somethings but not others .. conversation and debate hurts no one ...... just always be willing to listen to both sides .... educate yourself ..... and then go from there. I applaud AA for their willingness to debate and discuss. Now if AA can solve world peace......
Thanks HG. Back at ya. Free speech, open debate & accountability (esp. for politicians) is he only way forward as human societies. Don't think I'll try on the World Peace one. Got enuff on my hands.
And besides the reality that on the West Coast of Canada we have ~1000 TIMES the salmon they have on the East Coast (1000x the risk, interactions & consequences) - the East Coast also has it's specific consequences - introgression. see:
And besides the reality that on the West Coast of Canada we have ~1000 TIMES the salmon they have on the East Coast (1000x the risk, interactions & consequences) - the East Coast also has it's specific consequences - introgression. see:
BC justice allows salmon farmers' Discovery Islands damages suits to continue - Undercurrent News
A provincial judge has ruled that Mowi and Cermaq can proceed with claims of negligence and misrepresentation against the federal government over decisions to deny them licenses to farm salmon in the Discovery Islands
Mowi back in court as appeal over Discovery Islands aquaculture ban begins - Undercurrent News
Ecojustice and other groups have intervened against the appeal to support Canada’s decision to phase out salmon farms in the Discovery Islands
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