Answers are grounded in this paper and cite their sources.
The data on sturgeon fishery in the Caspian basin during last century as well as fishery management were analyzed. It was found that different factors influenced sturgeon stock in differrent time periods. The efficiency of various fishery management measures was demonstrated.
No takes yet. Share an insight, caveat, or question.
Рубан et al. (2011) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: