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Sexual Dimorphism and Length–Weight Relationship of the Hairy Conger Eel Bassanago albescens (Anguilliformes: Congridae)

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Abstract

The present study reports the first reference on length-weight relationships (LWR) and sexual dimorphism for Bassanago albecens, caught as bycatch in the commercial fishery in the Argentine continental shelf. A total of 91 conger eels were examined. Female specimens (ranged from 371 to 661 mm total length—TL) have body length larger than males (from 396 to 537 mm TL), but the length-weight relationships allometry coefficient was 3.76 for both sexes. Three out of seven morphometric measurements differed between sexes, in particular head size characteristics. These biometric data and their relationships are relevant to the management and conservation of fish diversity and fisheries.

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Authors and Affiliations

  1. Instituto Argentino de Oceanografía (IADO), CONICET/UNS, CCT-Bahía Blanca, Bahía Blanca, Argentina

    G. E. Blasina

  2. Laboratorio de Vertebrados, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina

    G. E. Blasina

  3. Laboratorio de Ictiología, Depto. Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, UNMDP, Mar del Plata, Argentina

    L. Izzo & D. Figueroa

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  1. G. E. Blasina
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  2. L. Izzo
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  3. D. Figueroa
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Correspondence to G. E. Blasina.

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Blasina, G.E., Izzo, L. & Figueroa, D. Sexual Dimorphism and Length–Weight Relationship of the Hairy Conger Eel Bassanago albescens (Anguilliformes: Congridae). J. Ichthyol. 58, 396–400 (2018). https://doi.org/10.1134/S0032945218030025

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