Sturgeons are among the most ancient and threatened fish groups on earth. Understanding the threats they face and conservation responses guides support for their survival.
Wild sturgeons removed from rivers by poaching experience the acute welfare costs of capture and killing for their caviar. The broader welfare dimension is ecological: sturgeons are long-lived (up to 100 years), late-maturing fish whose loss from river systems removes their ecological functions — large-scale bioturbation, benthic feeding, and nutrient cycling — that benefit the welfare of entire aquatic ecosystems. Individual sturgeons in rivers face challenges from physical obstructions (dams), poor water quality, and overfishing that prevent them from completing their natural life cycles. Conservation programs focused on dam removal, habitat improvement, and anti-poaching enforcement protect both individual fish welfare and the long-term survival of these extraordinary ancient animals.