Ichthyology and Marine Biology

Sharks and rays have patrolled the world's oceans for more than 400 million years, yet within a few decades of industrial fishing, many of their populations have collapsed to fractions of their historical sizes. Researchers working at the intersection of ichthyology, marine ecology, and conservation science study how these animals move through ocean habitats, how their evolutionary relationships shape vulnerability to human pressures, and how fisheries mortality propagates through marine food webs where sharks and rays often serve as apex regulators. A central challenge is reconciling the data demands of robust population assessments with the vast, transboundary ranges these species occupy — a problem that has pushed the field toward satellite tagging, environmental DNA, and phylogenomic tools to track individuals and infer stock structure across entire ocean basins. Open questions remain about which habitat features are critical at different life stages, how climate-driven shifts in prey distribution will alter migration corridors, and whether existing protected area networks are positioned to intercept the places these animals actually use.

Works

191,790

Total citations

640,949

Keywords

SharksRaysConservationEcologyFisheriesPhylogeny