Análisis comparativo del ciclo gametogénico de Perumytilus purpuratus (Bivalvia: Mytilidae), en las localidades de Taltal y Huasco, norte de Chile

Pablo Oyarzún Cabañas, Jorge E. Toro, Roberto Jaramillo, Ricardo Guiñez, Carolina Briones, Marcela Astorga

Resultado de la investigación: Article

12 Citas (Scopus)

Resumen

A qualitative and quantitative study of the gametogenic cycle from natural populations of Perumytilus purpuratus at the localities of Taltal and Huasco was carried out between October 2007 and October 2008. By means of histological analysis a gonadal maturation table was constructed according to the microscopic characteristics. Also the Gametic Volume Fraction (GVF) (% of previtelogenic oocytes, vitelogenic oocytes and mature oocytes), percentaje of interfolicular connective tissue and Gonadic Index (GI) were determined. According to the qualitative analysis, P. purpuratus has a semiannual reproductive cycle starting in January with spawning mainly during spring-summer, even do some winter spawning were detected. However, the quantitative analysis of mature oocytes percentajes found that at Taltal population four spawnings were detected (December, March, July and October) while in Huasco population three spawnings were detected (December, February and September). The relationship between GI with the gametogenic stages and the mature oocyte percentajes were significant at the localities studied. Also significant differences of the condition index between males and females were observed. Along the latitudinal gradient the reproductive cycle of P. purpuratus showed variations according to the timing and synchrony.

Idioma originalSpanish
Páginas (desde-hasta)43-58
Número de páginas16
PublicaciónRevista de Biologia Marina y Oceanografia
Volumen45
N.º1
EstadoPublished - 28 may 2010

Huella dactilar

Mytilidae
Chile
Bivalvia
spawning
oocytes
reproductive cycle
latitudinal gradient
synchrony
qualitative analysis
quantitative analysis
maturation
connective tissues
analysis
winter
summer
index

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science

Citar esto

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title = "An{\'a}lisis comparativo del ciclo gametog{\'e}nico de Perumytilus purpuratus (Bivalvia: Mytilidae), en las localidades de Taltal y Huasco, norte de Chile",
abstract = "A qualitative and quantitative study of the gametogenic cycle from natural populations of Perumytilus purpuratus at the localities of Taltal and Huasco was carried out between October 2007 and October 2008. By means of histological analysis a gonadal maturation table was constructed according to the microscopic characteristics. Also the Gametic Volume Fraction (GVF) ({\%} of previtelogenic oocytes, vitelogenic oocytes and mature oocytes), percentaje of interfolicular connective tissue and Gonadic Index (GI) were determined. According to the qualitative analysis, P. purpuratus has a semiannual reproductive cycle starting in January with spawning mainly during spring-summer, even do some winter spawning were detected. However, the quantitative analysis of mature oocytes percentajes found that at Taltal population four spawnings were detected (December, March, July and October) while in Huasco population three spawnings were detected (December, February and September). The relationship between GI with the gametogenic stages and the mature oocyte percentajes were significant at the localities studied. Also significant differences of the condition index between males and females were observed. Along the latitudinal gradient the reproductive cycle of P. purpuratus showed variations according to the timing and synchrony.",
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Análisis comparativo del ciclo gametogénico de Perumytilus purpuratus (Bivalvia : Mytilidae), en las localidades de Taltal y Huasco, norte de Chile. / Cabañas, Pablo Oyarzún; Toro, Jorge E.; Jaramillo, Roberto; Guiñez, Ricardo; Briones, Carolina; Astorga, Marcela.

En: Revista de Biologia Marina y Oceanografia, Vol. 45, N.º 1, 28.05.2010, p. 43-58.

Resultado de la investigación: Article

TY - JOUR

T1 - Análisis comparativo del ciclo gametogénico de Perumytilus purpuratus (Bivalvia

T2 - Mytilidae), en las localidades de Taltal y Huasco, norte de Chile

AU - Cabañas, Pablo Oyarzún

AU - Toro, Jorge E.

AU - Jaramillo, Roberto

AU - Guiñez, Ricardo

AU - Briones, Carolina

AU - Astorga, Marcela

PY - 2010/5/28

Y1 - 2010/5/28

N2 - A qualitative and quantitative study of the gametogenic cycle from natural populations of Perumytilus purpuratus at the localities of Taltal and Huasco was carried out between October 2007 and October 2008. By means of histological analysis a gonadal maturation table was constructed according to the microscopic characteristics. Also the Gametic Volume Fraction (GVF) (% of previtelogenic oocytes, vitelogenic oocytes and mature oocytes), percentaje of interfolicular connective tissue and Gonadic Index (GI) were determined. According to the qualitative analysis, P. purpuratus has a semiannual reproductive cycle starting in January with spawning mainly during spring-summer, even do some winter spawning were detected. However, the quantitative analysis of mature oocytes percentajes found that at Taltal population four spawnings were detected (December, March, July and October) while in Huasco population three spawnings were detected (December, February and September). The relationship between GI with the gametogenic stages and the mature oocyte percentajes were significant at the localities studied. Also significant differences of the condition index between males and females were observed. Along the latitudinal gradient the reproductive cycle of P. purpuratus showed variations according to the timing and synchrony.

AB - A qualitative and quantitative study of the gametogenic cycle from natural populations of Perumytilus purpuratus at the localities of Taltal and Huasco was carried out between October 2007 and October 2008. By means of histological analysis a gonadal maturation table was constructed according to the microscopic characteristics. Also the Gametic Volume Fraction (GVF) (% of previtelogenic oocytes, vitelogenic oocytes and mature oocytes), percentaje of interfolicular connective tissue and Gonadic Index (GI) were determined. According to the qualitative analysis, P. purpuratus has a semiannual reproductive cycle starting in January with spawning mainly during spring-summer, even do some winter spawning were detected. However, the quantitative analysis of mature oocytes percentajes found that at Taltal population four spawnings were detected (December, March, July and October) while in Huasco population three spawnings were detected (December, February and September). The relationship between GI with the gametogenic stages and the mature oocyte percentajes were significant at the localities studied. Also significant differences of the condition index between males and females were observed. Along the latitudinal gradient the reproductive cycle of P. purpuratus showed variations according to the timing and synchrony.

KW - Gametic volume fraction

KW - Maico mussel

KW - Reproductive cycle

KW - Spawning

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