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The population of Tivela mactroides (born, 1778) in the Caraguatatuba Cove, North Coast of the State of São Paulo: monitoring and analysis of threats

Grant number: 17/19156-1
Support type:Scholarships in Brazil - Master
Effective date (Start): July 01, 2018
Effective date (End): August 31, 2019
Field of knowledge:Physical Sciences and Mathematics - Oceanography - Biological Oceanography
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Alexander Turra
Grantee:Juliana Nascimento Silva
Home Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The occupation of the coastal zone in Brazil has been intensifying in the last decades. An example of a coastal zone organism subjected to the pressures resulting from this occupation process is the bivalve Tivela mactroides (Born, 1778). Due to their filtering habit, bivalves accumulate chemical compounds in their tissues throughout their life cycle and can transmit these contaminants through the trophic web. In the Caraguatatuba Cove this species is an important resource for recreation, subsistence and as an economic input for tourists and residents. The present study has as general objective to use tools and management models to subsidize decision makers and to guide the development and monitoring of policies and strategies linked to the maintenance of beach environmental quality, focusing on the management and conservation of the population of T mactroides in the Cove. Surveys will be performed on the temporal variation in the life history of the T. mactroides population in the study area and identified factors that may impact this population. Based on data from the available literature and interviews with experts, the SWOT and DPSIR models will be used to identify pressures, impacts, public policy gaps and opportunities related to the population of T. mactroides at the site considering two scenarios : 1) conservation and 2) species management as a sociocultural resource. This project hopes to propose actions by both society and public authorities for the conservation and management of this species. (AU)

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