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Assessing population-level morphometric variation of the Mountain Mullet Agonostomus monticola (Teleostei: Mugilidae) across its Middle American distribution Neotropical Ichthyology
Díaz-Murillo,Bertha P.; Ruiz-Campos,Gorgonio; Piller,Kyle R.; McMahan,Caleb D.; García-De-León,Francisco J.; Camarena-Rosales,Faustino.
ABSTRACT Population-level morphometric variation of the Mountain Mullet (Agonostomus monticola) was assessed in 419 adult specimens from 25 sample sites (river basins) across its Middle American distribution (Pacific and Atlantic-Caribbean drainages). This analysis was based on 36 standardized linear measurements and 19 landmarks on geometric morphometrics approach. Discriminant function analysis (DFA) revealed 19 linear morphological characters with significant variation among groups. Geometrically, the most notable changes were associated to the curvature of the frontal region of the head, the anterior and posterior insertion of the first dorsal and anal fins. The resulting grouping based on the DFA and geometric morphometrics techniques (Pacific-A,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Discriminant analysis; Evolutionary entities; Landmarks; Middle American distribution; Morphometry.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000400210
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