Acta Oceanologica Sinica

, Volume 37, Issue 12, pp 92–96 | Cite as

Diversity and abundance of mangrove fiddle crabs, genus Uca (Decapoda, Ocypodidae) at a mangrove in Kema, North Sulawesi, Indonesia

  • Pratiwi Rianta
  • Widyastuti Ernawati
  • Guangcheng Chen
  • Shunyang Chen


Mangrove ecosystems are sites with high biodiversity of benthic fauna, and fiddler crabs (genus Uca) are common benthic fauna in mangroves. The North Sulawesi in Indonesia has a good condition of mangrove while the information of the fiddler crabs is still limited. Manual samplings were conducted in wet, dry and transient seasons at a mangrove in Kema, North Sulawesi to investigate the species composition, density and distribution pattern of fiddler crabs. A total of 168 individuals, subjected to eight species of genus Uca crabs were collected at the mangrove, with U. triangularis having the highest abundance and U. annulipes having the lowest abundance. The densities of fiddle crabs were 27.56 ind./m2, 32.89 ind./m2 and 14.22 ind./m2 at the seaward, middle and landward zones, respectively, and the density was higher in dry and wet seasons than in transient season.

Key words

Crustacea genus Uca species mangrove North Sulawesi Indonesia 


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The authors sincerely thank Dirhamsyah, Chen Bin, Pramudji, I Wayan Eka Darmawan and Mochtar Jabar for their assistances in arranging and conducting the field samplings.


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Copyright information

© The Chinese Society of Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Pratiwi Rianta
    • 1
  • Widyastuti Ernawati
    • 1
  • Guangcheng Chen
    • 2
  • Shunyang Chen
    • 2
  1. 1.Research Center for OceanographyIndonesian Institute of SciencesJakartaIndonesia
  2. 2.Third Institute of OceanographyMinistry of Natural ResourcesXiamenChina

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