Pink salmons face threat from freshwater acidification, researchers

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WASHINGTON: The marine life faces the peril of escalating greenhouse gas emissions equally, as do humans. In a new study published in the journal Nature Climate Change on Monday, the researchers assert that the Pink salmons face a double threat from freshwater acidification.
The Canadian study claims that acidification of rivers unbalances the chemistry of the water and this not only hurts the growth of the pink salmon, but it also hampers their chances of survival by adversely affecting the pink salmon’s ability to smell danger.
Colin Brauner, professor in the Department of Zoology at the University of British Columbia (UBC) and the study co-author, informed,” Most of the work on acidification has been in the ocean, yet 40% of all fish are freshwater. We need to think about how carbon dioxide is affecting freshwater species.
Brauner added that the research found that freshwater acidification affects pink salmon and may impact their ability to survive and ultimately return to their freshwater spawning grounds.
The researchers recorded the growth of pink salmon for 10 weeks reared in waters with roughly double the carbon dioxide concentrations than currently found in order to ascertain the impact of freshwater acidification on baby salmons.