The relation between phytoplankton diversity and light availability: a case study ...
| Grant number: | 08/06661-0 |
| Support type: | Scholarships in Brazil - Doctorate |
| Effective date (Start): | November 01, 2008 |
| Effective date (End): | June 30, 2011 |
| Field of knowledge: | Physical Sciences and Mathematics - Geosciences - Physical Geography |
| Principal Investigator: | Evlyn Márcia Leão de Moraes Novo |
| Grantee: | Adriana Gomes Affonso |
| Home Institution: | Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). São José dos Campos , SP, Brazil |
Abstract Pirarucu fishing is a key element of amazonian ribeirinho culture and economy, and represents up to 40% of Mamirauá Sustainable Development Reserve (MSDR) total catch, and it is the most important economic activity in the region. The identification of the factors that affect the pirarucu abundance and distribution is essential for species conservation and sustainable fishery management policy. However, the dynamic and complex nature of the Amazonian aquatic ecosystem makes its study difficult and adverse, and consequently the understanding of the processes and inter-relationships of the structures and functions that governs it. Thus, remote sensing, by allowing a synoptic view of large areas in different scales of analysis and standardized record on several time scales, integrated with other sources in geographical information systems enables a space-time analysis of this complex and fragmented ecosystem. In this context, the aim of this project is to evaluate the relationship between pirarucu abundance in floodplain lakes and its habitat characteristics through the integration of optical (TM/Landsat and CCD/CBERS) and radar remote images (PALSAR/ALOS) and field and literature data in Geographic Information Systems. It is hypothesized that the pirarucu abundance in the lakes is affected not only by the fishing pressure intensity but also by the environmental parameters condition of MSDR lakes, which can be monitored with remote sensing images. (AU) | |