title: First report of the black gemfish Nesiarchus nasutus (Perciformes: Gempylidae) in Argentinean waters.
abstract: The gempylid Nesiarchus nasutus is reported for the first time from Argentinean waters, the southernmost occurrence of the species in the Southwestern Atlantic. This suggests that the fluctuating environmental characteristics of the area would be proper for the presence of tropical and subtropical species.
authors.affiliation: Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Mar del Plata, Argentina.
authors.forename: M C
authors.initials: MC
authors.lastname: Spath
authors.affiliation: Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Mar del Plata, Argentina.
authors.forename: G
authors.initials: G
authors.lastname: Delpiani
authors.affiliation: Instituto Nacional de Investigación y Desarrollo Pesquero, Mar del Plata, Argentina.
authors.forename: N E
authors.initials: NE
authors.lastname: Brunetti
authors.affiliation: National Research Institute of Far Seas Fisheries, Yokohama-shi, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Sakai
authors.affiliation: Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Mar del Plata, Argentina.
authors.forename: D E
authors.initials: DE
authors.lastname: Figueroa
mesh_terms: D000818:Animals; D001118:Argentina; D010473:Perciformes / Q000033:anatomy & histology* / Q000145:classification*