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Fecundidad del jurel aleta amarilla, Caranx hippos (Linnaeus) en el Caribe colombiano

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Artículo 45 (1) 123-134
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Author
Alfaro-Martínez, Sandra
Bustos-Montes, Diana
Salas-Castro, Sarith
Gómez-León, Javier
Rueda, Mario
Date
2016

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Abstract
Caranx hippos es uno de los recursos ícticos marinos más importantes en Colombia, especialmente en la pesca artesanal. Con el propósito de profundizar en su conocimiento biológico, se estimó la fecundidad parcial y el diámetro de los ovocitos. Las muestras provenían de faenas artesanales comerciales. A cada individuo se le midió longitud total, el peso total y el peso gonadal. La fecundidad se estimó combinando el método gravimétrico con análisis de imágenes, usando el software de libre acceso Image J®. A partir de la medición de 149523 ovocitos se obtuvo un diámetro promedio de 0.32 ± 1.24E-4 mm, y valores de fecundidad variables con un ámbito entre 291439 y 4380480 ovocitos/gónada. No se evidenció una relación directa entre la cantidad y el diámetro de los huevos con la talla y el peso del pez, lo que sugiere que no siempre las hembras más grandes son las más fecundas. Se describe el desarrollo microestructural de los oocitos maduros, encontrando diámetros promedio en alvéolo cortical y vitelogénesis de 98.6 + 33.1 µm y 207.5+ 59.6 µm, respectivamente. Dada la importancia en el país de C. hippos, este trabajo constituyó un importante aporte al conocimiento de la especie, que puede ser usado en modelos pesqueros con aplicabilidad directa en medidas de manejo.
Caranx hippos is one of the most important fish resources in Colombia, particularly in artisanal fisheries. In order to deepen C. hippos biological knowledge, fecundity (number of eggs in development) and oocyte diameter was estimated. Fish samples were collected from commercial artisanal fishing trips, each fish was measured (total length, Lt) and weighted (total weight, Pt); gonads were removed, weighed and analyzed for determining fecundity using a gravimetric method combined with image analysis performed using the open access software Image J®. From the measurement of 149552 oocytes, an average diameter of 0.32 ± 1.24E-4 mm, was obtained, while fecundity varied between 291439 and 4380480 oocytes per gonad. No direct relationship was evidenced between egg number and diameter, and fish size and weight. Mature oocyte microstructural development is described, average diameters in cortical alveoli and vitellogenesis were 98.6 + 33.1 µm y 207.5+ 59.6 µm, respectively. This result suggests that larger females are not always the more fertile. Given the importance of C. hippos in Colombia, this work is a valuable contribution to the knowledge of the species, which can be used in fishery models with direct applicability to management procedures.
Journal
Boletín de Investigaciones Marinas y Costeras
Volume
45
Issue/Article Nr
1
Page Range
pp. 123-134
DOI
10.25268/bimc.invemar.2016.45.1.633
Resource/Dataset Location
http://boletin.invemar.org.co/index.php/boletin/article/view/633/619
URI
http://hdl.handle.net/1834/10946
ae974a485f413a2113503eed53cd6c53
10.25268/bimc.invemar.2016.45.1.633
Scopus Count
Collections
3. Boletín de Investigaciones Marinas y Costeras

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