Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano

Abstract Mustelus lunulatus is the most important shark demersal species in the landings of the Ecuadorian artisanal fishery, this study was carried out to expand the knowledge about size, sex, type of growth (isometric or allometric) and reproductive aspects in males of the species. Biological trai...

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Autores principales:	Briones-Mendoza,Jesús, Pincay-Espinoza,Jonathan E., Palma-Chávez,Javier, Romero-Caicedo,Andrés
Lenguaje:	Spanish / Castilian
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2018
Materias:	Biology Mustelus lunulatus Clasper Pacific Ecuadorian
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572018000200279
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spelling	oai:scielo:S0718-195720180002002792019-01-04Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatorianoBriones-Mendoza,JesúsPincay-Espinoza,Jonathan E.Palma-Chávez,JavierRomero-Caicedo,Andrés Biology Mustelus lunulatus Clasper Pacific Ecuadorian Abstract Mustelus lunulatus is the most important shark demersal species in the landings of the Ecuadorian artisanal fishery, this study was carried out to expand the knowledge about size, sex, type of growth (isometric or allometric) and reproductive aspects in males of the species. Biological traits of the sicklefin smooth-hound shark, M. lunulatus, caught in the Pacific coast of Ecuador were assessed by examining 199 individuals ranging from 41.2 to 135.0 cm in total length (TL). The means TL did not show significant differences between sexes. The sex ratio was not different from 1:1 and the weight-length relationship did not showed significant differences between males and females. Both sexes have a growth of isometric type (b males= 3.05 and b females= 3.15). Total length at sexual maturity (TL50) of male M. lunulatus, calculated from the clasper condition, was estimated to be 97.2 cm. The present study provides new information regarding the biology of M. lunulatus in Ecuadorian waters.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.53 n.2 20182018-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572018000200279es10.22370/rbmo.2018.53.2.1301
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Biology Mustelus lunulatus Clasper Pacific Ecuadorian
spellingShingle	Biology Mustelus lunulatus Clasper Pacific Ecuadorian Briones-Mendoza,Jesús Pincay-Espinoza,Jonathan E. Palma-Chávez,Javier Romero-Caicedo,Andrés Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano
description	Abstract Mustelus lunulatus is the most important shark demersal species in the landings of the Ecuadorian artisanal fishery, this study was carried out to expand the knowledge about size, sex, type of growth (isometric or allometric) and reproductive aspects in males of the species. Biological traits of the sicklefin smooth-hound shark, M. lunulatus, caught in the Pacific coast of Ecuador were assessed by examining 199 individuals ranging from 41.2 to 135.0 cm in total length (TL). The means TL did not show significant differences between sexes. The sex ratio was not different from 1:1 and the weight-length relationship did not showed significant differences between males and females. Both sexes have a growth of isometric type (b males= 3.05 and b females= 3.15). Total length at sexual maturity (TL50) of male M. lunulatus, calculated from the clasper condition, was estimated to be 97.2 cm. The present study provides new information regarding the biology of M. lunulatus in Ecuadorian waters.
author	Briones-Mendoza,Jesús Pincay-Espinoza,Jonathan E. Palma-Chávez,Javier Romero-Caicedo,Andrés
author_facet	Briones-Mendoza,Jesús Pincay-Espinoza,Jonathan E. Palma-Chávez,Javier Romero-Caicedo,Andrés
author_sort	Briones-Mendoza,Jesús
title	Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano
title_short	Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano
title_full	Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano
title_fullStr	Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano
title_full_unstemmed	Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano
title_sort	notas sobre la biología del tiburón mamona mustelus lunulatus (carcharhiniformes: triakidae) en el pacífico central ecuatoriano
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572018000200279
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Notas sobre la biología del tiburón mamona Mustelus lunulatus (Carcharhiniformes: Triakidae) en el Pacífico Central ecuatoriano

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