4 documents found, page 1 of 1
Establishment of a coastal fish in the Azores: recent colonisation or sudden ex...
Stefanni, S.; Castilho, Rita; Sala-Bozano, M.; Robalo, J. I.; Francisco, S. M.; Santos, R. S.; Marques, N.; Brito, A.; Almada, V. C.; Mariani, S.The processes and timescales associated with ocean-wide changes in the distribution of marine species have intrigued biologists since Darwin's earliest insights into biogeography. The Azores, a mid-Atlantic volcanic archipelago located >1000 km off the European continental shelf, offers ideal opportunities to investigate phylogeographic colonisation scenarios. The benthopelagic sparid fish known as the common t...
Ancient divergence in the trans-oceanic deep-sea shark Centroscymnus crepidater
Cunha, R. L.; Coscia, I.; Madeira, C.; Mariani, S.; Stefanni, S.; Castilho, RitaUnravelling the genetic structure and phylogeographic patterns of deep-sea sharks is particularly challenging given the inherent difficulty in obtaining samples. The deep-sea shark Centroscymnus crepidater is a medium-sized benthopelagic species that exhibits a circumglobal distribution occurring both in the Atlantic and Indo-Pacific Oceans. Contrary to the wealth of phylogeographic studies focused on coastal s...
Phylogenetic relationships of the North-eastern Atlantic and Mediterranean form...
Francisco, S. M.; Congiu, L.; Stefanni, S.; Castilho, Rita; Brito, A. B.; Ivanova, P. P.; Levy, A.; Cabral, H.; Kilias, G.; Doadrio, I.; Almada, V. C.The genus Atherina (Sand-smelts) is distributed in the Eastern Atlantic Ocean and Mediterranean Sea, extending south along the African coast into the Indian Ocean (Quignard and Pras, 1986). It is a genus of small inshore fishes with many populations living in brackish and freshwater. The taxonomy of the genus has been troublesome due to the intraspecific variability of some of its species, the overlap of charac...
Molecular insights indicate that Pachycara thermophilum (Geistdoerfer, 1994) an...
Stefanni, S.; Porteiro, F. M.; Bettencourt, R.; Gavaia, Paulo J.; Santos, Ricardo SerrãoThe genus Pachycara comprises of 20 species distributed across the globe. Due to difficulties in collecting these fish, most of the species were described from single or few individuals. Until now, the systematics for these species has been based on traditional taxonomy and the only studies with molecular interest were performed on the Circum Antarctic Pachycara brachycephalum.