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Biología reproductiva del lenguado Paralichthys orbignyanus

Biología reproductiva del lenguado Paralichthys orbignyanus

Mariela Radonic

120,22 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2018
Materia
Biologia, ciencias de la vida
ISBN:
9786202431330
120,22 €
IVA incluido
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Sobre IBD

La manipulación de los parámetros ambientales (fotoperíodo, temperatura) constituye una técnica de uso frecuente para alterar los ritmos reproductivos y lograr desoves exitosos en calidad y cantidad. Tamaño de los tanques, bajo nivel lumínico, buenas condiciones nutricionales y de cultivo, calidad del agua y mínimos niveles de estrés aplicados a reproductores de lenguado han demostrado influir en el comportamiento reproductivo y producción de huevos del lenguado P. orbignyanus. El pico reproductivo para esta especie en cautiverio se centraría entre octubre y febrero (19º-22°C, fotoperíodo de 14 hs luz). En estas condiciones se registraron desoves espontáneos con huevos viables liberados con una frecuencia de 1 a 3 días. Las hembras de lenguado mantenidas en condiciones controladas presentan una fecundidad máxima entre 300.000 y 580.000 huevos totales/hembra/temporada reproductiva. El diámetro del huevo, las tasas de fecundación y de eclosión y la longitud larval son criterios apropiados para determinar la calidad de huevos y de larvas en esta especie.

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