Marine Biology

, Volume 69, Issue 1, pp 117–120 | Cite as

Distribution of Juvenile, subadult and adult Scylla serrata (Crustacea: Portunidae) on tidal flats in Australia

  • B. J. Hill
  • M. J. Williams
  • P. Dutton


In Deception Bay, northern Australia, during 1979–1981, a study was made of the distribution of Scylla serrata (Forskal) in an area having a broad intertidal zone. Juveniles (20 to 99 mm carapace width) were resident in the mangrove zone, remaining there during low tide. The majority of subadult crabs (100 to 149 mm) migrated into the intertidal zone to feed at high tide and retreated to subtidal waters at low tide. Adults (150 mm and larger) were caught mainly subtidally and only small numbers were captured in the intertidal at high tide. Few crabs were captured in the coolest months (May to August). Adults were captured on the flats mainly in the warmest months (January to April), but subadults could be captured over the entire summer (September to March). Juveniles were found in the upper intertidal throughout the year.


High Tide Tidal Flat Intertidal Zone Carapace Width Entire Summer 
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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • B. J. Hill
    • 1
  • M. J. Williams
    • 1
  • P. Dutton
    • 1
  1. 1.Fisheries Research BranchQueensland Department of Primary IndustriesFortitude ValleyAustralia

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