Rearing and Postembryonic Development of the Myodocopid Ostracode Skogsbergia lerneri from Coral Reefs of Belize and the Bahamas

Cohen, Anne C. (1983) Rearing and Postembryonic Development of the Myodocopid Ostracode Skogsbergia lerneri from Coral Reefs of Belize and the Bahamas. Journal of Crustacean Biology, 3 (2). pp. 235-256.

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    Abstract

    Skogsbergia lerneri (Kornicker, 1958) is the second species of the ostracode order Myodocopida to be fully reared. S. lerneri, a meroplanktonic scavenger, was abundant in baited jar traps set on the barrier reef off Belize, Central America, and at San Salvador Island, Bahamas. Live material was maintained in a coral reef aquarium and in small dishes. S. lerneri had 5 subadult instars and required 65-93 days to reach maturity, measured from the time eggs first became visible in the ovary. Brooding time in the marsupium was 14-18 days. New eggs were visible forming within the ovary of the mother as early as 2 days following release from the marsupium of the previous clutch of 1st instars. Females produced as many as 3 clutches of 10-22 1st instars, all apparently fertilized by stored sperm from a previous insemination. Development time of S. lerneri is similar to that of another cypridinid, Vargula hilgendorfii, partially reared at a similar temperature, but is much shorter than that of 2 other myodocopids belonging to different families and kept at 12°C or less. Tables and figures showing ontogenetic changes that can be used to identify each instar and a preliminary key to the instars of the Cypridinidae are presented. Most useful characters are the number of bristles on the following limbs: the 4th segment of the 1st antenna, the ventral side of the 2nd segment of the endopodite of the mandible, and the 6th limb; and the number and shape of bristles on the 7th limb. The first 3 instars have a posterior process on the body. Females of the 5th instar and adults are larger than males. Carapace sizes of 5th instar males and adult males from different clutches of the same mother ostracode overlap.

    Item Type: Peer-reviewed Journal Article
    Related URLs:
    Publisher: The Crustacean Society
    Keywords: postembryonic development, myodocopid ostracode, coral reefs
    Subjects: (A) Biodiversity > (AF) Invertebrates > (AFB) Marine
    (C) Ecosystems > (CB) Marine > (CBA) Coral Reefs
    Publication Sources: (3) Other Source > (3D) Other or Unspecified
    Date Deposited: 07 Feb 2011 16:00
    Last Modified: 07 Feb 2011 16:00
    URI: http://eprints.uberibz.org/id/eprint/1271

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