Full text
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| Author(s): |
Micael Eiji Nagai
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia |
| Defense date: | 2012-02-24 |
| Examining board members: |
Antonia Cecília Zacagnini Amaral;
Marcelo Veronesi Fukuda;
Jolnnye Rodrigues Abrahão
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| Advisor: | Antonia Cecília Zacagnini Amaral |
| Abstract | |
The study of the syllid Exogone (Exogone) breviantennata was conducted in two soft bottom beds of the mytilid Mytella charruana at Camaroeiro and Cidade beaches, located on the northern coast of São Paulo. To characterize the study areas, samples were taken monthly between february 2006 and february 2007 at Camaroeiro, and between april 2006 and april 2007 at Cidade, where the following environmental parameters were analyzed: beach slope, granulometry, air and sediment temperatures, interstitial salinity and levels of calcareous and organic matter. The beach slope of Camaroeiro showed a sharp decline from the supralitoral, ending with a narrow flat at water level, with processes of deposition and erosion; the Cidade beach presented an extensive plateau at the upper region and then a sharp decline, with erosion as the main process. The granulometric composition of the two beds was very similar, with a predominance of fine sand, with low to moderate selection. The average air and sediment temperatures at Camaroeiro were 23.08°C and 23.73°C, respectively, while in the Cidade was 22.55°C and 23.98°C, respectively. The mean areas of the Camaroeiro and Cidade beds were 586.73 m² and 464.48 m², respectively. On both beds there were gradual decreases in these areas. At Camaroeiro the interstitial salinity ranged from 22 to 34, while at Cidade from 25 to 34. The average percentage of calcareous on the Camaroeiro bed showed a variation from 3.74 to 11.99%, while on the Cidade bed it ranged from 5.55 to 14.30%. The average percentage of organic matter presented minimum and maximum of 0.74% to 8.40% at Camaroeiro, while the Cidade bed presented 2.62% and 7.98% (AU) | |
| FAPESP's process: | 09/04708-2 - Populational and reproductive biology of the Syllidae Exogone (Exogone) breviantennata Hartmann-Schröder, 1959 (Polychaeta: Exogoninae) |
| Grantee: | Micael Eiji Nagai |
| Support Opportunities: | Scholarships in Brazil - Master |