REPRODUCTIVE-BIOLOGY OF 2 EPIZOIC ANEMONES FROM THE DEEP NORTH- EASTERN ATLANTIC-OCEAN

S K Bronsdon, P A Tyler, A L Rice, John D Gage

Research output: Contribution to journalArticle

Abstract

The reproductive biology of two epizoic deep-sea anemones reveals contrasting reproductive strategies. Amphianthus inornata (Cnidaria: Anthozoa) lives attached to the bathyal gorgonian Acanella arbuscula (Cnidaria: Anthozoa). Females of A. inornata increase in wet body weight as a result of increased oocyte production until 40% of the body weight is reproductive tissue. The anemone reproduces on a seasonal basis, releasing eggs in the early spring of each year. By contrast, Kadosactis commensalis (Cnidaria: Anthozoa) lives attached to the body wall of the abyssal holothurian Paroriza prouhoi (Echinodermata: Holothurioidea). This anemone is a protandric hermaphrodite, females being found only at the anterior end of the holothurian, whilst males are found at any point on the host. Females have a significantly higher wet weight than males and neither sex shows any reproductive seasonality.
Original languageEnglish
Pages (from-to)531-542
Number of pages12
JournalJ MAR BIOL ASSOC UK
Volume73
Issue number3
Publication statusPublished - 1993

Keywords

  • ACTINIARIA
  • PARACALLIACTIS-STEPHENSONI
  • SEA
  • SEXUAL REPRODUCTION
  • ANTHOPLEURA-ELEGANTISSIMA BRANDT
  • Marine & Freshwater Biology
  • CNIDARIA
  • PERIODICITY
  • GAMETOGENESIS
  • ANNUAL CYCLE
  • ANTHOZOA

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    Bronsdon, S. K., Tyler, P. A., Rice, A. L., & Gage, J. D. (1993). REPRODUCTIVE-BIOLOGY OF 2 EPIZOIC ANEMONES FROM THE DEEP NORTH- EASTERN ATLANTIC-OCEAN. J MAR BIOL ASSOC UK, 73(3), 531-542.