Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity

ABSTRACT Genypterus chilensis is a marine fish of high gastronomic demand, whose capture has declined in recent years due to overfishing. In the development of the farming technology, high mortalities were obtained during egg incubation. The objective of this study is to contribute to the knowledge...

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Autores principales:	Vega,Rolando, Sepúlveda,Clara, Barnert,Maicol, Mardones,Alfonso, Encina-Montoya,Francisco, Oberti,Carlos, Ramirez,Diego, Estrada,Juan Manuel
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2018
Materias:	Genypterus chilensis reproductive capacity fecundity egg viability aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000200489
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spelling	oai:scielo:S0718-560X20180002004892018-06-13Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivityVega,RolandoSepúlveda,ClaraBarnert,MaicolMardones,AlfonsoEncina-Montoya,FranciscoOberti,CarlosRamirez,DiegoEstrada,Juan Manuel Genypterus chilensis reproductive capacity fecundity egg viability aquaculture ABSTRACT Genypterus chilensis is a marine fish of high gastronomic demand, whose capture has declined in recent years due to overfishing. In the development of the farming technology, high mortalities were obtained during egg incubation. The objective of this study is to contribute to the knowledge of fecundity and eggs viability of G. chilensis in captivity. The spawns of G. chilensis were analyzed over a period of 2 years and 3 months. The total fecundity was estimated by counting the masses and eggs produced monthly throughout the period. The results confirm that G. chilensis is a partial spawner, since a female may more than two masses of eggs per day, due to a large amount of mass spawned per season (621 average). The total production of masses of the Farming Centre during the period was 2,290; of these, only 7% (166) corresponding to 15,330,517 eggs were incubated. Because of its high fecundity, G. chilensis produces numerous masses of eggs, of which only a small percentage reaches incubation, as well as it occurs in other marine fish.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.46 n.2 20182018-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000200489en10.3856/vol46-issue2-fulltext-25
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Genypterus chilensis reproductive capacity fecundity egg viability aquaculture
spellingShingle	Genypterus chilensis reproductive capacity fecundity egg viability aquaculture Vega,Rolando Sepúlveda,Clara Barnert,Maicol Mardones,Alfonso Encina-Montoya,Francisco Oberti,Carlos Ramirez,Diego Estrada,Juan Manuel Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity
description	ABSTRACT Genypterus chilensis is a marine fish of high gastronomic demand, whose capture has declined in recent years due to overfishing. In the development of the farming technology, high mortalities were obtained during egg incubation. The objective of this study is to contribute to the knowledge of fecundity and eggs viability of G. chilensis in captivity. The spawns of G. chilensis were analyzed over a period of 2 years and 3 months. The total fecundity was estimated by counting the masses and eggs produced monthly throughout the period. The results confirm that G. chilensis is a partial spawner, since a female may more than two masses of eggs per day, due to a large amount of mass spawned per season (621 average). The total production of masses of the Farming Centre during the period was 2,290; of these, only 7% (166) corresponding to 15,330,517 eggs were incubated. Because of its high fecundity, G. chilensis produces numerous masses of eggs, of which only a small percentage reaches incubation, as well as it occurs in other marine fish.
author	Vega,Rolando Sepúlveda,Clara Barnert,Maicol Mardones,Alfonso Encina-Montoya,Francisco Oberti,Carlos Ramirez,Diego Estrada,Juan Manuel
author_facet	Vega,Rolando Sepúlveda,Clara Barnert,Maicol Mardones,Alfonso Encina-Montoya,Francisco Oberti,Carlos Ramirez,Diego Estrada,Juan Manuel
author_sort	Vega,Rolando
title	Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity
title_short	Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity
title_full	Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity
title_fullStr	Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity
title_full_unstemmed	Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity
title_sort	reproductive capacity of the red cusk-eel genypterus chilensis (guichenot, 1848) in captivity
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2018000200489
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Reproductive capacity of the red cusk-eel Genypterus chilensis (Guichenot, 1848) in captivity

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