Effects of ration and temperature on reproduction of a semelparous and an iteroparous triclad

T. Bladon, P. Calow

    Research output: Contribution to journalArticle

    1 Scopus citations

    Abstract

    This paper compares aspects of the reproduction of a semelparous triclad, Dendrocoelum lacteum with those of an iteroparous triclad, Dugesia polychroa. Cocoon output was less sensitive to ration and possibly temperature for the former as compared with the latter species. Cocoons of D. lacteum were on average bigger and contained more hatchlings than those of D. polychroa. The sizes of hatchlings did not differ between species, but forD. lacteum only, the hatchlings emerging from late cocoons were significantly larger, and less numerous, than those emerging from earlier cocoons. Possible reasons for these differences are considered.

    Original languageEnglish (US)
    Pages (from-to)323-333
    Number of pages11
    JournalInternational Journal of Invertebrate Reproduction and Development
    Volume11
    Issue number3
    DOIs
    StatePublished - May 1987

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