Vitenskapelig sammendrag
Over-exploitation of traditional coastal stocks has resulted in the shift of commercial harvesting towards less-known, deep-sea living resources in many parts of the world. Most of these "new" fisheries are now proving to be unsustainable. A key to our ability to manage these fisheries and protect ecosystems is the understanding of the underlying demographic and life-history characteristics of deep sea species, such as their life-span, their growth and age at maturity, their reproductive potential, and their dispersal, migratory behavior and spatial population structure. In this project, we will apply the most modern methodologies for a multidisciplinary approach to unravel population structure and population connectivity in economically important deep-sea fish species, using molecular genetic markers, otolith microchemistry, and oceanographic modelling within a common statistical modeling framework.
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Metode
The approach of the study is to characterize large-scale (i.e., on the Mid Atlantic Ridge and continental slope) population structure and interconnectivity in selected deep-sea fishes by means of a suite of state-of-the-art techniques, including microsatellite DNA polymorphisms, mitochondrial and nuclear DNA sequence polymorphisms, and otolith trace element analyzes.
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