JESIOTRY - czy kiedyś wrócą do naszych rzek? / odc. 110

I invite you to a story about sturgeons that once swam our waters. How big did they grow? Are they completely extinct, and is there a chance they'll return to our rivers? I'm talking to Alicja Pawelec, PhD, hydrobiologist. Watch the video. P.S. There's a slight typo in the video at the 23rd minute. My interviewee said that a four-meter sturgeon in Canada can eat a five-meter salmon. It should be "meter-long salmon." Visit me on Facebook - https://www.facebook.com/profile.php?... or at www.kamilwalicki.pl