Anyone who has raised tropical fish knows how incredibly sensitive they are to temperature, pH, hardness, light, precipitation, clarity, presence of special foods… If everything is not right, they do not spawn, or the young die right away.
We treat salmon as if they were people. We humans can handle a huge range of environments, especially if we have a variety of clothing, heat, artificial light, imported food… but salmon cannot. Salmon take on the temperature of the water. They have no means to cool themselves. We are screwing them up with climate change, stripping the forest cover of their spawning streams and overfishing.~ Roedy (1948-02-04 age:70)