Some Studies on the New Zealand Oysters

Contents

• [covers]
• • Some Studies on the New Zealand Oysters p. 1
  • Abstract
  • [Introduction]
  • Acknowledgments p. 2
  • 1. The Systematic Status of the New Zealand Oysters
    • [Introduction]
    • The Genus Ostrea Linnaeus, 1758 In New Zealand — (Pls. 1, 2 and 3) p. 3
      • [Introduction] p. 3
      • Ostrea lutaria Hutton, 1873 (Pl. 2) p. 7
      • Ostrea heffordi Finlay, 1928 (Pl. 3. figs. 3-8) p. 8
  • 2. Reproduction and Development of O. Lutaria p. 9
    • [Introduction] p. 9
    • Maturity and Sexual Phases p. 10
    • Spawning and Fecundity p. 13
    • Fertilisation and Cleavage p. 15
    • Development and Liberation
      • [Introduction]
      • The Veliger p. 17
      • Duration of the incubation period p. 19
    • Free Swimming Larvae p. 21
      • [Introduction] p. 21
      • Duration of free swimming stage p. 22
    • Attachment and Metamorphosis p. 23
      • [Introduction] p. 23
      • The influence of light on the settling process
      • Metamorphosis
  • Discussion p. 26
• Literature Cited p. 27

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