A century of fishery data documenting the collapse of smooth‐hounds (Mustelus spp.) in the Mediterranean Sea

摘要: Conservation and management of shark populations is increasingly becoming important in many marine regions, since there a growing body evidence showing that several species are threatened continuing to decline because unregulated fishing. Quantifying the extent sharks' decline, risk extinction, consequences for ecosystems have been challenging controversial, mostly due data limitations. In this study, more than one century multiple-sources bibliographic records on presence frequency occurrence three commercial sharks, smooth-hounds Mustelus spp., Mediterranean Sea were compiled analysed. Generalized additive models location, scale shape (GAMLSS) used estimate rate change two these species, mustelus punctulatus, four regions. Model results showed declined by 80–90% beginning last almost disappear large part their original distributional range during 1980s 1990s. Based modelling results, revision current International Union Nature classification would be advisable along with application urgent conservation measures.