Is mining, in particular dredging, or even over fishing the cause or a big contributing factor of salmon population decline.
The answer is NO, it's lack of micro-nutrients in the ocean's pastures where the young fry go to grow big and strong so they can come back and spawn another generation of salmon, that is the cause of the decline, that is up until now!!!
Check out this project that has sowed those vital nutrients back into the ocean pasture/s where the young salmon go to grow into healthy adults, the result are proof of what is/was the cause of populations declines of salmon.
I wonder what our opponents of dredging is going to use now that this is proven to be the cause and not us dredging?
http://pesn.com/2014/06/29/9602512_Worl ... l_Success/