Organizers: Werner W. Schwarzhans1, Alexei M. Orlov2, Matt Friedman3 & Marcelo R. de Carvalho4

Affiliations: 1/ Zoological Museum, Natural History Museum of Denmark; 2/ Russian Federal Research Institute of Fisheries and Oceanography, Moscow, Russia; A.N. Severtsov Institute of Ecology and Evolution, Moscow, Russia; Dagestan State University, Makhachkala, Russia; Tomsk State University, Tomsk, Russia, 3/ Museum of Paleontology and Department of Earth and Environmental Science, University of Michigan, USA; 4/ Departamento de Zoologia, Universidade de São Paulo, Brazil

Email: wwschwarz@aol.com; orlov@vniro.ru; mfriedm@umich.edu; mrcarvalho@ib.usp.br

Lead contacts: Werner Schwarzhans & Alexei M. Orlov

Description: While the application of ever more extensive genetic datasets continues to transform the study of modern fish diversity, other technical and methodological innovations have similarly advanced our understanding of the history of fishes.

Studies of fossil fishes have always provided unique data and continue to add a constant stream of new data, but also new technological advances such as computed tomography or developments of phylogenetic approaches provide the means to extract abundant new insights from the rich fish fossil record. These analytical innovations are complemented by growing appreciation for instance of the major consequences of ancient changes in the earth’s physical past, shifting composition of reef-building organisms, and mass extinction events in shaping large-scale patterns of fish evolution. This part of the session aims to highlight: Deep time’ insights that fossils can provide on phylogeny; New insights about historical ichthyology and taxonomy; Paleobiogeography; Functional anatomy.

Non-teleost fishes that are the living representatives of ancient lineages are often considered to be ‘primitive’. This term, however, is not entirely accurate in terms of vertebrate evolution. According to modern concept, primitive fishes include hagfishes (Myxini), lampreys (Petromyzonti), sharks and skates/rays (Elasmobranchii), ratfishes/chimaeras (Holocephali), coelacanths (Coelacanthi), lungfishes and tetrapods (Dipneusti), bichirs/reedfishes (Cladistii), sturgeons (Acipenseridae) and paddlefishes (Polyodontidae), gars (Lepisosteidae), bowfins (Amiidae) and some others. The second part of the session aims at providing an overview of the current status of knowledge about these fishes in respect to: Evolution, phylogeny, phylogeography, and molecular biology; Taxonomy and zoogeography; Ecology and life history; Harvesting, stock assessment, and fisheries management; Artificial propagation and aquaculture; Conservation and stock rebuilding.

Expected Audience: We expect a broad audience of ichthyologists and interdisciplinary scientists interested in paleoichthyology, evolution, phylogeny, taxonomy, historical zoology, biogeography, phylogeography, ecology, applications of new analytical technologies, molecular biology, stock assessment, fisheries management, artificial propagation, aquaculture and conservation.