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OceanDocs
Article . 2013 . Peer-reviewed
License: CC BY NC
Data sources: OceanDocs
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Article . 2013
License: CC BY
Data sources: Datacite
ZENODO
Article . 2013
License: CC BY
Data sources: Datacite
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Validación y estandarización de una técnica para biopsia ovárica en el pargo flamenco, Lutjanus guttatus (Steindachner, 1869)

Authors: Alvarez-Lajonchère, L.; Ibarra-Zatarain, Z.; Ibarra-Castro, L.;

Validación y estandarización de una técnica para biopsia ovárica en el pargo flamenco, Lutjanus guttatus (Steindachner, 1869)

Abstract

Se estudió la estandarización y validación de una técnica de biopsia para la evaluación del desarrollo ovárico del pargo flamenco, Lutjanus guttatus (Steindachner, 1869). Ovocitos en diferentes estadios estaban presentes a lo largo de los ovarios. Los ovocitos vitelogénicos se distinguen por su opacidad bajo luz trasmitida. Los diámetros deben ser medidos dentro de las primeras 36 h después de su fijación en una solución de formalina al 1 % en 0,9 % de NaCl, antes de que su citoplasma sea clareado con solución Serra, para evitar distorsiones. Los ovocitos vitelogénicos mostraron una distribución de frecuencias de sus diámetros con una sola moda y sus medias no fueron significativamente diferentes entre los ovarios derecho e izquierdo (P > 0,05), y se incrementó significativamente de las regiones anterior a posterior (P > 0,05). Se calculó un tamaño de muestra de 50 ovocitos vitelogénicos tardíos para los estimados de los diámetros medios. Los análisis estadísticos de los ovocitos obtenidos con cánula in vivo no fueron diferentes significativamente de muestras duplicadas in vitro, así como de muestras pareadas in vivo, de la misma región ovárica (P > 0,05). Los estimados del coeficiente de variación corregidos para sesgos (P < 0,05) de cinco hembras fueron 1,10 ± 0,27 a 1,20 ± 0,30. Los resultados del presente estudio aportaron información exacta y precisa sobre el desarrollo ovárico para la selección de reproductores en experimentos de inducción del desove.

The standardization and validity of a biopsy technique for the assessment of the ovarian development of the spotted rose snapper, Lutjanus guttatus (Steindachner, 1869), was studied. Ovarian oocytes at different stages were present along the length of the ovaries. Late vitellogenic oocytes are distinguished by their opacity under transmitted light. Diameters should be measured within 36 hours after fixation in 1 % formalin in 0.9 % ClNa solution, before their cytoplasm is cleared with Serra solution, to avoid distortions. Vitellogenic oocytes showed unimodal diameter frequency distributions, their means were not significantly different between the right and left ovaries (P > 0.05), and increased significantly from the anterior to posterior regions (P 0.05) from duplicate in vitro samples from the same ovarian region, as well as from paired in vivo samples. Estimates of the bias corrected coefficient of variation (P < 0.05) from five females were 1.10 ± 0.27 to 1.20 ± 0.30. The results of the present study led to accurate and precise information on ovarian development for selection of breeders in induced spawning experiments.

Keywords

pruebas de ajuste y justificación, Tests, Lutjanus guttatus, Sampling (biological), GC1-1581, Oceanography, G, ovarian in vivo sampling, muestreo ovárico in vivo, Geography. Anthropology. Recreation, adjustment and justification tests

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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