Growth, development and reproduction of Hyalella Azteca (Saussure, 1858) in laboratory culture

M. S. Othman, D. Pascoe

    Research output: Contribution to journalArticle

    25 Citations (Scopus)

    Abstract

    Hyalella azteca from a laboratory culture, were maintained under conditions designed to allow assessment of growth, development and reproduction. Newly born H. azteca were approximately 1 mm in length (0.04 mg wet weight) and reached a maximum of about 7 mm (8 mg) at an approximate age of 120 days. Generally, mean size of males was greater than that of females. Adult male H. azteca had an intermoult period of 20 days (range 8-43 days) and females 11 days (10-13 days). Sex of male H. azteca could be identified at 19-21 days of age and first precopula was found as early as 23 days. The number of neonates produced by a single female ranged from 3-17 (mean 9) and significantly correlates with the length of the female. The mean time spent in precopula ranged from 1-7 days and animals took 4-12 days to re-enter precopula after separating.

    Original languageEnglish
    Pages (from-to)171-181
    Number of pages11
    JournalCrustaceana
    Volume74
    Issue number2
    DOIs
    Publication statusPublished - 2001

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    Hyalella azteca
    growth and development
    neonate
    neonates
    laboratory
    gender
    animal
    animals

    ASJC Scopus subject areas

    • Aquatic Science

    Cite this

    Growth, development and reproduction of Hyalella Azteca (Saussure, 1858) in laboratory culture. / Othman, M. S.; Pascoe, D.

    In: Crustaceana, Vol. 74, No. 2, 2001, p. 171-181.

    Research output: Contribution to journalArticle

    Othman, M. S. ; Pascoe, D. / Growth, development and reproduction of Hyalella Azteca (Saussure, 1858) in laboratory culture. In: Crustaceana. 2001 ; Vol. 74, No. 2. pp. 171-181.
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