Full text
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| Author(s): |
Andrea Green Koettker
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto Oceanográfico (IO/DIDC) |
| Defense date: | 2008-05-09 |
| Examining board members: |
Paulo Yukio Gomes Sumida;
Augusto Alberto Valero Flores;
Ralf Schwamborn
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| Advisor: | Paulo Yukio Gomes Sumida |
| Abstract | |
The present study describes the composition, density and the temporal, diel and spatial distribution of decapod and stomatopod larvae present in surface waters of Saint Paul\'s Rocks. The expeditions to the archipelago were carried out in April, August and November of 2003, March of 2004 and May of 2005. Surface plankton samples were collected during the morning and dusk, inside the bay and in stations 150, 700 and 1500 m away from the archipelago. The identification resulted in 51 decapod and 6 stomatopod larvae. Seven species, eight genera and individuals belonging to the families Oplophoridae, Pandalidae, Scyllaridae and Oplophoridae were identified for the first time in the area. The mean larval density varied from zero to 150,2 ± 69,6 individuals · 100 m-3 in the waters around the archipelago and from 1,7 ± 3,0 to 12.827,1 ± 15.072,9 individuals · 100 m-3 inside the bay. Significant differences in larval density were verified between months and day periods, but not among different distances from the archipelago. The results suggest that the bay and the waters around the archipelago are different in terms of larval composition, density and diversity. (AU) | |
| FAPESP's process: | 05/58085-5 - Composition, density and spatial-temporal distribution of decapods and stomatopods larvas of the Saint Paul's archipelago, Brazil |
| Grantee: | Andréa Green Koettker |
| Support Opportunities: | Scholarships in Brazil - Master |