Atlas of fish otoliths of the Argentina.

A.V. VOLPEDO.; THOMPSON G.,; LLAMAZARES VEGH, SABINA; BIOLÉ F.,; CALLICÓ FORTUNATO R; AVIGLIANO E

Taipei

Congreso; 6th International Otolith Symposium 2018 (IOS2018); 2018

Comite 6th International Otolith Symposium 2018 (IOS2018)

The purpose ofthis Atlas is to provide a detailed description of morphologicalcharacteristics of otoliths (mainly sagitta,but also lapillus and asteriscus when possible) of 158species, belonging to 64 families and 17 orders of marine and freshwater fishesfrom the Argentina. Five geographic areas are considered for the otolithsdescription: Paranaense forest, Paraná flooded savanna, La Plata Basin,Argentinean Sea and Austral Sea. Descriptions of sagittae are based on shape, contour, size, anterior-posterior parts,and sulcus acusticus features of otoliths. Characteristicsof lapilli otoliths are madeconsidering shape, margins, presence and structure of sulcus, gibbus maculae and linebasalis maculae.  Asteriscii otoliths are characterized bythe lobus major, fossa acoustic, edge and structure of rostrum and antirrostrum. Inaddition to its description, each otolith is photographed and illustrated. The presentAtlas provides information that complements the characterization of some fishspecies. In addition, it constitutes an important instrument for speciesidentification using otoliths collected both in archaeological sites and infeeding remains of fish predators.