Carpospore release and sporeling development in Gracilaria gracilis (Gracilariales, Rhodophyta) from the southwestern Atlantic coast (Chubut, Argentina)

MICHETTI, K.M.; MARTÍN, L. A.; LEONARDI, P. I.

JOURNAL OF APPLIED PHYCOLOGY

SPRINGER

Lugar: Berlin; Año: 2013 vol. 25 p. 1917 - 1924

0921-8971

The agarophyte Gracilaria gracilis is an economically valuable species exploited in Argentina and the carpospore study is relevant since such spores are used as inoculum for commercial aquaculture. The aims of this work were to describe the carpospore release periodicity and carposporeling development and to evaluate the influence of temperature, irradiance, and day length on carpospore release under laboratory conditions. Desiccation,osmotic shock, and spontaneous discharge were compared as sporulation induction methods and the last one was the best method for improved carpospore release (ANOVA: F=6.4018, P