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Araujo E.A.,NAV Oceanografia Ambiental | Peters G.,NAV Oceanografia Ambiental | Machado A.,NAV Oceanografia Ambiental | Zanella J.F.,NAV Oceanografia Ambiental | And 4 more authors.
Brazilian Petroleum, Gas and Biofuels Institute [IBP] Rio Oil and Gas Conference (Rio de Janeiro, Brazil, 9/13-16/2010) Techn | Year: 2010

The Beach Monitoring Project (PMP) was implemented in the coastline under the influence of the seismic survey conducted at the Pernambuco-Paraiba Basin, BM-PE-PB 783/837/839 marine blocks. The objective of this project was to identify and record the environmental impacts of the human activities. This study presents data recorded on the reproduction of sea turtles, from spawning to birth, including nest monitoring. During the projects implementation relevant data has been observed to improve the knowledge of the reproductive biology of sea turtles, their interaction with human activities, contributing to the creation of management strategies for endangered populations. As a result 86 reproductive events have been recorded, 72 resulted in positive oviposition. Among the five sea turtles species that occur in Brazil, three were observed in the study area: Caretta-caretta (Loggerhead sea turtle), Chelonia mydas (green sea turtle) and Eretmohelys imbricata (Hawksbill sea turtle), the latter being responsible for 87.5% of nests with 30 nests monitored until emergence, total of 3,977 eggs, averaging 137 (±29) and 2,263 hatchlings, an average of 78 (±46), 1,367 spoiled, mean 47 (±16) and 347 hatchlings, average 12 (±16). This study recorded new nesting areas.


Araujo E.A.,NAV Oceanografia Ambiental | Peters G.,NAV Oceanografia Ambiental | Mizutori I.S.,NAV Oceanografia Ambiental | Machado A.,NAV Oceanografia Ambiental | And 4 more authors.
Brazilian Petroleum, Gas and Biofuels Institute [IBP] Rio Oil and Gas Conference (Rio de Janeiro, Brazil, 9/13-16/2010) Techn | Year: 2010

The beach monitoring project (PMP) was implemented in the coastline under the influence of the seismic survey conducted at the Pernambuco-Paraiba Basin, BM-PE-PB 783/837/839 marine blocks. The objective of this project was to identify and record the environmental impacts of the human activities. This study presents data recorded on the stranding of sea turtles, living and dead, identifying their causes. The monitoring was performed daily on 12 municipalities. The project began on October 10, 2009 and ended on March 22, 2010. Among the five species that occurred in Brazil, four were recorded in stranding events, with total of 169 records. Chelonia mydas had a higher occurrence with 70%, followed by Lepidochelys olivacea 12%, Caretta caretta 6%, Eretmochelys imbricata 6%, carcasses fragments 2% and 4% unidentified. From all strandings, 8% were live animals (Code 1) and 66% in advanced decomposition process (Code 4). The high rate of carcasses in advanced decomposition process resulted in a low percentage of causes of death diagnoses, ranging from natural factors and human interference. The gender was identified by necropsy and by the tail's length. Males represented 13%, 44% of females and 43% unidentified. The animal's age were determined by carapace measurement.

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