WWF's annual update on the poaching report in the Lower Danube: https://wwfcee.org/pdf_collections/49/Poaching%20of%20sturgeon_en_low-res_final.pdf related press release https://wwfcee.org/news/poaching-and-trafficking-is-driving-sturgeon-species-towards-extinction-in-the-lower-danube
The Delaware Riverkeeper network threatens to sue for increased Atlantic sturgeon protections https://whyy.org/articles/atlantic-sturgeon-endangered-new-jersey-delaware-lawsuit/