title: The otoliths of the antarctic teleost Trematomus bernacchii: scanning electron microscopy and X-ray diffraction studies.
abstract: The authors studied the otoliths of the Nototheniid Trematomus bernacchii with scanning electron microscopy and X-ray diffraction analysis. Results obtained reveal that three otoliths are present: a large sagitta, a lapillus and a fragile asteriscus. Their sensorial faces appear finely decorated as shown by scanning electron microscopy (SEM). The sagitta and the lapillus are aragonitic while the asteriscus is vateritic, as demonstrated by X-ray diffraction.
authors.affiliation: Department of Genetics and General and Molecular Biology, University of Naples Federico II, Naples, Italy.
authors.forename: B
authors.initials: B
authors.lastname: Avallone
authors.forename: G
authors.initials: G
authors.lastname: Balassone
authors.forename: G
authors.initials: G
authors.lastname: Balsamo
authors.forename: G
authors.initials: G
authors.lastname: Di Giacomo
authors.forename: E
authors.initials: E
authors.lastname: Marmo
authors.forename: M G
authors.initials: MG
authors.lastname: Casciello
authors.forename: C M
authors.initials: CM
authors.lastname: Motta
authors.forename: S
authors.initials: S
authors.lastname: Tammaro
authors.forename: S
authors.initials: S
authors.lastname: Filosa
mesh_terms: D000818:Animals; D002119:Calcium Carbonate / Q000032:analysis; D018360:Crystallography, X-Ray; D004577:Electron Probe Microanalysis; D005260:Female; D008297:Male; D008855:Microscopy, Electron, Scanning; D010037:Otolithic Membrane / Q000000981:diagnostic imaging* / Q000648:ultrastructure*; D010473:Perciformes / Q000033:anatomy & histology*; D011859:Radiography; D014961:X-Ray Diffraction
chemical_list: D002119:Calcium Carbonate