Earth tones-- : the book : federal science for sustainable development earthtonesbookfe00cana Year: 2000 'At the return of two to four per cent of wild smolts, most salmon rivers south of Sydney, Nova Scotia can't produce enough smolts from each spawning to remain viable,' says Peter Amiro, a researcher with the Department of Fisheries and Oceans. 'This is aggravated by the effects of acid rain in much of this area.' Historically, Atlantic salmon populations have displayed a high resilience (except where habitat has been eliminated or severely degraded) even while fluctuations in their nu


Earth tones-- : the book : federal science for sustainable development earthtonesbookfe00cana Year: 2000 'At the return of two to four per cent of wild smolts, most salmon rivers south of Sydney, Nova Scotia can't produce enough smolts from each spawning to remain viable,' says Peter Amiro, a researcher with the Department of Fisheries and Oceans. 'This is aggravated by the effects of acid rain in much of this area.' Historically, Atlantic salmon populations have displayed a high resilience (except where habitat has been eliminated or severely degraded) even while fluctuations in their number have been severe. But the abundance of Atlantic salmon has generally declined since the 1970s, and 14 stocks in Nova Scotia's more than 60 salmon- bearing rivers are now extinct. Research programs on salmon at sea are needed to increase our knowledge of the life history of salmon in the Atlantic Ocean. For further information, contact Peter Amiro at (902) 426-8104.


Size: 1887px × 1060px
Photo credit: © Bookend / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archive, book, drawing, historical, history, illustration, image, page, picture, print, reference, vintage