Spatio-temporal variation of planktonic decapods along the leeward coast of the Fernando de Noronha archipelago, Brazil

Authors

  • Claudeilton Severino de Santana Universidade Federal de Pernambuco
  • Ralf Schwamborn Universidade Federal de Pernambuco
  • Sigrid Neumann-Leitão Universidade Federal de Pernambuco
  • Manuel de Jesus Flores Montes Universidade Federal de Pernambuco
  • Simone Maria de Albuquerque Lira Universidade Federal de Pernambuco

DOI:

https://doi.org/10.1590/s1679-87592018147206601

Keywords:

Tropical oceanic islands, Zooplankton, Decapod larvae, Horizontal distribution, Microscale variation

Abstract

Tropical island environments are considered hotspots due to their high diversity, endemism and ecological importance. However, reports that discuss the composition and ecology of planktonic decapods in these environments are still very few. In order to ascertain the composition, abundance and spatial-temporal distribution of planktonic decapods, zooplankton samples were taken by means of sub-surface hauls with a standard plankton net of 300 µm mesh size. Sampling was carried out at five stations in the nearshore leeward area of the Fernando de Noronha archipelago, in July and December 2013 and June and November 2014. A total of 22 decapod taxa were recorded, among which the most abundant were Brachyura (zoeae), Clibanarius sp., Caridea and Callianassidae. Characteristic annual distribution and temporal tendencies were observed for the larvae of the hermit crab Clibanarius sp. and for the larvae of burrowing shrimps (Callianassidae). Some taxa showed differences between sampling stations. In general, higher abundances were observed in the southern (downstream) stations of the island (Baía dos Golfinhos and Cacimba do Padre), and lower abundances in the northernmost (upstream) station (Porto de Santo Antônio), indicating the existence of larval retention in the nearshore coastal zone of this oceanic island ecosystem.

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Published

2018-03-01

Issue

Section

Original Article

How to Cite

Spatio-temporal variation of planktonic decapods along the leeward coast of the Fernando de Noronha archipelago, Brazil. (2018). Brazilian Journal of Oceanography, 66(1), 1-14. https://doi.org/10.1590/s1679-87592018147206601