Regrettably, this rare shark is threatened by habitat degradation, and they're generally a bycatch of business and athletics fishermen. The European sea sturgeons gained level of popularity while in the 19th century as a result of caviar creation. In 1982 the species became secured in France and 1998 in Europe, https://medium.com/@FishAquariumOnline/facts-about-professional-pond-cleaning-007541cfa80a