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Sturgeons and paddlefish are among the most commercially valuable groups of fishes and include both low risk and highly endangered species. However, a recent bibliometric study on sturgeon and paddlefish research revealed that disproportionately little attention has been paid to those species that are endangered or face a high probability of extinction. With the exception of European sturgeon Acipenser sturio, all of the 8 species that are highly threatened with extinction or functionally extinct, were each addressed in less than 1% of the publications dealing with sturgeons or paddlefishes. Information on the biology and sensitive life-cycle phases of threatened sturgeon and paddlefish species, as well as knowl- edge of their interactions with their respective habi- tats, is especially deficient or lacking, thus rendering the planning and execution of protection measures even more difficult. We argue that a more stringent focus has to be placed upon conservation research and management for vulnerable species and popula- tions that are threatened with a high risk of extinc- tion. This also makes it a necessity to overcome the apparent lack of commitment which has been ob - served in some regions to developing and/ or imple- menting effective and concerted re gional actions which address sturgeon and paddlefish rehabilitation.

Sturgeon and paddlefish research focuses on low risk species and largely disregards endangered species