I did not say 9 or a dozen farms would fill the park (I said they appeared to cover about 1/3), what I suggested was that the area affected by 9 or a dozen farms would cover the park. You ask me to check on Google Earth and "see for myself"...so I did.
I am pointing out the harmful effect. Are you suggesting that the total accumulation of organic carbon and the subsequent reduction in the abundance and bio diversity of micro-, meio- and macrobenthic organisms beneath the farms, is not harmful? If it were not harmful, why are the scientists recommending the farms be located at a minimum 2km safe distance from "any benthic system traditionally considered as vulnerable" (Pusceddu et al, p. 1372)? Again, I think we can agree to disagree here.
We can agree to disagree in our opinions but we do need to be sure that we are working with the same set of facts.
In order to understand it, you need to look at the whole picture, not just single aspects taken out of context and interpreted according to a set of parameters based on personal bias. There is some deposition directly beneath the farms but it is undergoing a continuous process of breaking down to constituent elements; that breakdown is accelerated by site fallowing. If there are creatures that find the environment less than ideal, they simply move 100m to an environment essentially unaffected by the deposition; consequently, diversity in the benthic substrate immediately under the pen is somewhat reduced but overall diversity within an area is unaffected. That is not a permanent condition, nor one that is particularly harmful, nor one that affects the seabed a stone's throw from the pens.
Arguing precisely how many farms fit into Stanley Park is a sidetrack that has nothing to do with the point being made, though having done the actual calculation of area occupied by the farms in the past, I'll stand by my assertion that all farms will fit within the Park. The point, once again, is that the farms use an extremely small area of the coast and that because of oceanographic conditions, physical principles, biological principles and the nature of the materials being deposited, the depositions are not causing harm nor are they a cause for concern.