Decline in species such as salmon harms entire ecosystems and livelihoods, say researchersPopulations of migratory river fish around the world have plunged by a "catastrophic" 76% since 1970, an analysis has found.The fall was even greater in Europe at 93%, and for some groups of fish, with sturgeon and eel populations both down by more than 90%. Continue reading...
Migratory river fish populations plunge 76% in past 50 years
28. červenece 2020 9:00
Příroda
Celý článek: https://www.theguardian.com/environment/2020/jul/27/migratory-river-fish-populations-plunge-76-in-past-50-years
Zdroj: The Guardian