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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/1961

Title: Identificación y morfometría de las mandibulas de Loligo gahi y Loligo sanpaulensis (Cephalopoda, Loliginidae) del Atlántico Sudoccidental
Other Titles: Beaks identification and compared morphometry of Loligo gahi and Loligo sanpaulensis (Cephalopoda, Loliginidae)of the South west Atlantic
Authors: Pineda, S.E.
Aubone, A.
Brunetti, N.E.
ASFA Terms: Morphometry
Growth curves
Issue Date: 1996
Publisher: Mar del Plata: Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP)
Citation: Revista de Investigación y Desarrollo Pesquero, 10. p. 85-99
Abstract: Beaks of Loliginid squids have very similar morphological features making identification of the species to be quite difficult. A new metodology to identify species from the relative growth of some parts of the beak is presented. Samples of Loligo gahi and Loligo sanpaulensiswere obtained from ten reserch cruises of RVS "Dr. Holmberg" and "Captain Oca Balda" and eight commercial landings at Mar del Plata Port during the period 1992-1993. The results obtained using the new metodology (Metric Discriminant Criterium)were compared with those resulting from the application of the Fisher's Lineal Discriminant Criterium. Both mantle length - rostral length and total weight - rostral length relationships, corresponding to each species were fitted. Either upper or lower part of the beak can be used.
URI: http://hdl.handle.net/1834/1961
ISSN: 0325-6375
Appears in Collections:1. Revista de Investigación y Desarrollo Pesquero

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