Ichthyoplankton distribution and abundance in the northern Todos os Santos and Camamu Bays, Bahia State - Brazil

  • Mario Katsuragawa Universidade de São Paulo; Instituto Oceanográfico
  • Maria de Lourdes Zani-Teixeira Universidade de São Paulo; Instituto Oceanográfico
  • Cássia Gôngora Goçalo Universidade de São Paulo; Instituto Oceanográfico
  • Marcio Hidekazu Ohkawara Universidade de São Paulo; Instituto Oceanográfico
  • Michael Kengo Itagaki Universidade de São Paulo; Instituto Oceanográfico
Keywords: Ichthyoplankton, Fish eggs, Fish larvae, Spawning, RLAM, Camamu, Bahia State coast

Abstract

The occurrence, distribution and abundance of ichthyoplankton in Todos os Santos and Camamu Bays were analyzed based on four samplings (winter 2003, summer 2003, winter 2004 and summer 2005). Samples were obtained by surface horizontal hauls, using a 200-µm mesh conical-cylinder plankton net. The distribution and abundance of eggs indicate a remarkable seasonal and annual variation of spawning activity in the region, especially when the two summer campaigns are compared. In summer 2003 the highest quantitative values were recorded, especially for Camamu, where the maximum reached 106.56 eggs.m-3, with an overall average of 43.46 eggs.m-3 for the two areas. In summer 2005 values were relatively low, the overall average being 3.49 eggs.m-3. The larval taxonomic composition is characterized by the predominance of gobiids, with small variation from summer to winter. Considering all the campaigns and samplings undertaken in both areas, larvae of 11 families were identified: Engraulidae, Clupeidae, Mugilidae, Atherinopsidae, Hemiramphidae, Syngnathidae, Blenniidae, Carangidae, Gobiidae, Achiridae and Tetraodontidae.

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Published
2011-03-01
How to Cite
Katsuragawa, M., Zani-Teixeira, M., Goçalo, C., Ohkawara, M., & Itagaki, M. (2011). Ichthyoplankton distribution and abundance in the northern Todos os Santos and Camamu Bays, Bahia State - Brazil. Brazilian Journal of Oceanography, 59(1), 97-109. https://doi.org/10.1590/S1679-87592011000100007
Section
naodefinida