Length-weight relationship of four batoid species from the Pacific coast of Ecuador

Authors

DOI:

https://doi.org/10.22370/rbmo.2022.57.1.3362

Keywords:

Length-weight, batoids, Ecuadorian waters

Abstract

Length-weight relationships (LWR) were estimated for four species of batoids, Zapteryx xyster, Rostroraja equatorialis, Pseudobatos leucorhynchus and Gymnura crebripunctata, collected in Ecuadorian waters. Values of the allometric growth parameter (b) oscillated from 2.41 to 3.15. Pseudobatos leucorhynchus and G. crebripunctata exhibited isometric type growth, while Z. xyster and R. equatorialis showed negative and positive allometric growth, respectively. New records of minimum sizes were obtained for free-swimming R. equatorialis (7.8 cm TL) and G. crebripunctata (20.0 cm DW). Data obtained constitute a baseline for future management and conservation studies.

Author Biography

Jonathan Pincay-Espinoza, Universidad Técnica de Manabí

Corresponding author: jona.eduar@hotmail.com

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Published

2022-09-30

How to Cite

Pincay-Espinoza, J. ., Diz, F. R., & Vélez-Tacuri, J. . (2022). Length-weight relationship of four batoid species from the Pacific coast of Ecuador. Revista De Biología Marina yOceanografía, 57(1), 57–60. https://doi.org/10.22370/rbmo.2022.57.1.3362

Issue

Vol. 57 No. 1 (2022)

Section

Research Note

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Copyright (c) 2022 Jonathan Pincay-Espinoza, Fernando Rey Diz, José Vélez-Tacuri

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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