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Reproduction and ontogenetic post embryonic development in hyloniscus transsylvanicus crustacea isopoda



Reproduction and ontogenetic post embryonic development in hyloniscus transsylvanicus crustacea isopoda



Studia Universitatis Babes Bolyai Biologia 21: 44-48



Some 1212 male, female and larval samples were collected at 1 mo. intervals over a 2 yr period. Various developmental stages are discussed. The gestation period ranged from 100-110 days beginning in May and lasting to Aug. Sexual maturity was attained at 10-11 mo. and most reproduced after the 1st yr. Females up to 1 yr. old had only 1 egg-laying period, while those from 1-2 and 2-3 yr old had 2 consecutive egg-laying periods. Sexual differentiation begins in Aug. for the offspring from the 1st egg-laying period and in Sept. for those of the 2nd period. During the following spring the physiological maturation process of the 2nd group is accelerated and both groups reach maturity at the same time.

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Accession: 006315490

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