Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.

The oocyte structure of jumbo squid (Dosidicus gigas) female gonads was analyzed to validate morphochromatic sexual maturation stages based on a six-phase scale. Samples were obtained fortnightly from the Santa Rosalía area, Baja California Sur, from June 2001 to November 2002. Histological preparat...

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Autores: Díaz-Uribe, JG, Hernández-Herrera, A, Morales-Bojórquez, E, Martínez-Aguilar, S, Suárez-Higuera, MC, Hernández-López, A
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:México
Institución:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
Repositorio:Ciencias Marinas
Idioma:inglés
OAI Identifier:oai:cienciasmarinas.com.mx:article/68
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/68
Access Level:acceso abierto
Palabra clave:Dosidicus gigas
jumbo squid
gonad maturation
maturity index
Gulf of California
calamar gigante
maduración gonádica
índice de madurez
Golfo de California
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spelling Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.Validación histológica de los estadios de madurez gonádica de las hembras de calamar gigante (Dosidicus gigas) en el Golfo de California, MéxicoDíaz-Uribe, JGHernández-Herrera, AMorales-Bojórquez, EMartínez-Aguilar, SSuárez-Higuera, MCHernández-López, ADosidicus gigasjumbo squidgonad maturationmaturity indexGulf of CaliforniaDosidicus gigascalamar gigantemaduración gonádicaíndice de madurezGolfo de CaliforniaThe oocyte structure of jumbo squid (Dosidicus gigas) female gonads was analyzed to validate morphochromatic sexual maturation stages based on a six-phase scale. Samples were obtained fortnightly from the Santa Rosalía area, Baja California Sur, from June 2001 to November 2002. Histological preparations were obtained from each gonad to count the number of oocytes at each level of development. The frequency of oocytes at each level was then used to estimate a maturity index (MI) to assess the correspondence between morphochromatic maturation stages and the oocyte structure in the gonad tissue. The histological analysis showed that morphochromatic stages I, II and III were ruled by oocytes in developmental level 2 or less (i.e., secondary growth has not yet begun), and thus correspond to sexually immature juveniles. Stages IV, V and VI were ruled by oocytes in more advanced developmental levels and correspond to mature or maturing adults. According to the analysis of variance, the morphochromatic maturity scale allowed sexually immature individuals to be readily and reliably distinguished from mature ones. A detailed analysis of MI confidence intervals showed that each morphochromatic maturity stage had a specific oocyte structure, except for stages II and III, which presented morphological differences.Se analizó la estructura de ovocitos en las gónadas de hembras de calamar gigante (Dosidicus gigas), para validar los estadios morfocromáticos de madurez sexual, basados en una escala de seis etapas. Las muestras fueron obtenidas quincenalmente en el área de Santa Rosalía, Baja California Sur, entre junio del 2001 y noviembre del 2002. De cada gónada se obtuvieron cortes histológicos para contar el número de ovocitos en cada nivel de desarrollo. Con la frecuencia de ovocitos en cada nivel de desarrollo, se estimó el índice de madurez (IM) para evaluar la correspondencia de cada estadio de madurez morfocromática con la estructura de ovocitos en el tejido de la gónada. El análisis histológico indica que los primeros tres estadios de madurez morfocromática (I–III) predominan ovocitos en un nivel de desarrollo 2 o inferior, en los cuales no inicia todavía el crecimiento secundario y por lo tanto corresponden a organismos juveniles sexualmente inmaduros. En los otros tres estadios (IV–VI) predominan ovocitos en niveles de desarrollo más avanzados que corresponden a adultos maduros o en proceso de maduración. De acuerdo con el análisis de varianza, esta escala de madurez permite distinguir de manera confiable y expedita a los organismos sexualmente inmaduros de los maduros. Un análisis más detallado de los intervalos de confianza del IM, indica que cada estadio de madurez morfocromática presenta una estructura de ovocitos distinta excepto entre los estadios II y III en los cuales las diferencias se observan más bien a nivel morfológico.Iniversidad Autónoma de Baja California2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Article Artículo Arbitradoapplication/pdfhttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/6810.7773/cm.v32i1.68Ciencias Marinas; Vol. 32 No. 1 (2006); 23-31Ciencias Marinas; Vol. 32 Núm. 1 (2006); 23-312395-90530185-3880reponame:Ciencias Marinasinstname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIAinstacron:UABCenghttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/68/50info:eu-repo/semantics/openAccessoai:cienciasmarinas.com.mx:article/682024-08-22T17:01:28Z
dc.title.none.fl_str_mv Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
Validación histológica de los estadios de madurez gonádica de las hembras de calamar gigante (Dosidicus gigas) en el Golfo de California, México
title Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
spellingShingle Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
Díaz-Uribe, JG
Dosidicus gigas
jumbo squid
gonad maturation
maturity index
Gulf of California
Dosidicus gigas
calamar gigante
maduración gonádica
índice de madurez
Golfo de California
title_short Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
title_full Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
title_fullStr Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
title_full_unstemmed Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
title_sort Histological validation of the gonadal maturation stages of female jumbo squid (Dosidicus gigas) in the Gulf of California, Mexico.
dc.creator.none.fl_str_mv Díaz-Uribe, JG
Hernández-Herrera, A
Morales-Bojórquez, E
Martínez-Aguilar, S
Suárez-Higuera, MC
Hernández-López, A
author Díaz-Uribe, JG
author_facet Díaz-Uribe, JG
Hernández-Herrera, A
Morales-Bojórquez, E
Martínez-Aguilar, S
Suárez-Higuera, MC
Hernández-López, A
author_role author
author2 Hernández-Herrera, A
Morales-Bojórquez, E
Martínez-Aguilar, S
Suárez-Higuera, MC
Hernández-López, A
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Dosidicus gigas
jumbo squid
gonad maturation
maturity index
Gulf of California
Dosidicus gigas
calamar gigante
maduración gonádica
índice de madurez
Golfo de California
topic Dosidicus gigas
jumbo squid
gonad maturation
maturity index
Gulf of California
Dosidicus gigas
calamar gigante
maduración gonádica
índice de madurez
Golfo de California
description The oocyte structure of jumbo squid (Dosidicus gigas) female gonads was analyzed to validate morphochromatic sexual maturation stages based on a six-phase scale. Samples were obtained fortnightly from the Santa Rosalía area, Baja California Sur, from June 2001 to November 2002. Histological preparations were obtained from each gonad to count the number of oocytes at each level of development. The frequency of oocytes at each level was then used to estimate a maturity index (MI) to assess the correspondence between morphochromatic maturation stages and the oocyte structure in the gonad tissue. The histological analysis showed that morphochromatic stages I, II and III were ruled by oocytes in developmental level 2 or less (i.e., secondary growth has not yet begun), and thus correspond to sexually immature juveniles. Stages IV, V and VI were ruled by oocytes in more advanced developmental levels and correspond to mature or maturing adults. According to the analysis of variance, the morphochromatic maturity scale allowed sexually immature individuals to be readily and reliably distinguished from mature ones. A detailed analysis of MI confidence intervals showed that each morphochromatic maturity stage had a specific oocyte structure, except for stages II and III, which presented morphological differences.
publishDate 2006
dc.date.none.fl_str_mv 2006-02-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Artículo Arbitrado
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/68
10.7773/cm.v32i1.68
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/68
identifier_str_mv 10.7773/cm.v32i1.68
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/68/50
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
dc.source.none.fl_str_mv Ciencias Marinas; Vol. 32 No. 1 (2006); 23-31
Ciencias Marinas; Vol. 32 Núm. 1 (2006); 23-31
2395-9053
0185-3880
reponame:Ciencias Marinas
instname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron:UABC
instname_str UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron_str UABC
institution UABC
reponame_str Ciencias Marinas
collection Ciencias Marinas
repository.name.fl_str_mv
repository.mail.fl_str_mv
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