Melting glaciers may produce thousands of kilometers of new salmon habitat
1–10 of 68 posts
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#2But, what would I do with thousands of meter of new salmon?
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#3So could opening up dammed rivers.
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#4I wonder if AAAS is in poor financial shape. Other once-respected science journals such as Scientific American have dumbed down their content considerably, but I thought Science would resist that trend.
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#5Cant access it (ddos protection from so much new traffic), so maybe my question would be answered.
I wonder what salmon would habitat the ne habitat and how long it would take. Presumably salmon return to where they were born to spawn. So only the lost salmon would be able to populate the new habitat.
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#6So could opening up dammed rivers.
And how many more kilotons of fossil fuels would we need to burn per year to make up for the loss in hydroelectric power those dams give us?
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#7Cant access it (ddos protection from so much new traffic), so maybe my question would be answered. I wonder what salmon would habitat the ne habitat and how long it would take. Presumably salmon return to where they were born to spawn. So only the lost salmon would be able to populate the new habitat.
They return to the stream they grew up in before they went to sea, not necessarily the one where the eggs were hatched.
It's very common to stock streams with fry from a hatchery located somewhere else. Salmon generally spend a year or more (much more, in some species) in fresh water before migrating to the ocean. That's plenty of time for them to imprint on the "foster stream" -- they'll return to it, no problem.
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#8So could opening up dammed rivers.
Why can’t we invent better fish ladders to get around dams?
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#9So could opening up dammed rivers.
And how many more kilotons of fossil fuels would we need to burn per year to make up for the loss in hydroelectric power those dams give us?
We are using record amounts of coal globally.
https://www.wsj.com/articles/global-coal-power-expected-to-h...
Re: Melting glaciers may produce thousands of kilometers of new salmon habitat
#10So could opening up dammed rivers.
And how many more kilotons of fossil fuels would we need to burn per year to make up for the loss in hydroelectric power those dams give us?
The vast majority of the dams being torn down are from old mills, not hydro dams. They serve no economic purpose and are highly dangerous, in addition to preventing millions of fish from living in the rivers.