Abstract
This work presents Megaptera novaeangliae (Humpback Whale) sightings recorded during CGG seismic survey along south of Espirito Santo coast. The seismic vessel executed transects perpendicular to the coastline between 50 and 3.200 m depth. Two environmental technicians recorded all sightings during seismic survey; They worked on the highest point of the vessel (bridge) observing the presence and behavior of the marine biota around vessel. There were recorded 38 sightings of Humpback Whales and a total of 81 organisms. 61% of the sightings were concentrated between 40 and 80 m depth. About 60,5% of the sightings were recorded females with puppies, mainly in the afternoon. There were observed no difference between sightings with the source working on and off. The results obtained suggest similarity between the number of sightings and the distance of the animals related to seismic source activity, suggesting non evasive behavior, as well as any indicative change on the behavior regarding to the presence of the Seismic Vessel. Nevertheless, we know that it's necessary to make more studies to obtain definitive conclusions about the subject. (author)
Costa, Leandro Damiao S. da;
Almeida, Alexandre N. Ferraz de;
[1]
Uller, George A;
Oliveira, Joao Luiz Martinez de;
[2]
Derntl, Jose Renato;
Pereira, Edisio;
Silva, Camila C. da;
[3]
Miranda, Cristina M. de
[4]
- Okeanos Consultoria e Meio Ambiente Ltda. (Brazil)
- CGG do Brasil, Rio de Janeiro, RJ (Brazil)
- GEOCOOP Cooperativa de Trabalho, Rio de Janeiro, RJ (Brazil)
- Nautilus Cooperativa de Trabalho (Brazil)
Citation Formats
Costa, Leandro Damiao S. da, Almeida, Alexandre N. Ferraz de, Uller, George A, Oliveira, Joao Luiz Martinez de, Derntl, Jose Renato, Pereira, Edisio, Silva, Camila C. da, and Miranda, Cristina M. de.
Megaptera Novaeangliae sightings recorder (Borowski, 1781) in the capixaba coast during marine seismic survey; Registro de avistagens de Megaptera Novaeangliae (Borowski, 1781) no litoral capixaba durante levantamento sismico maritimo.
Brazil: N. p.,
2004.
Web.
Costa, Leandro Damiao S. da, Almeida, Alexandre N. Ferraz de, Uller, George A, Oliveira, Joao Luiz Martinez de, Derntl, Jose Renato, Pereira, Edisio, Silva, Camila C. da, & Miranda, Cristina M. de.
Megaptera Novaeangliae sightings recorder (Borowski, 1781) in the capixaba coast during marine seismic survey; Registro de avistagens de Megaptera Novaeangliae (Borowski, 1781) no litoral capixaba durante levantamento sismico maritimo.
Brazil.
Costa, Leandro Damiao S. da, Almeida, Alexandre N. Ferraz de, Uller, George A, Oliveira, Joao Luiz Martinez de, Derntl, Jose Renato, Pereira, Edisio, Silva, Camila C. da, and Miranda, Cristina M. de.
2004.
"Megaptera Novaeangliae sightings recorder (Borowski, 1781) in the capixaba coast during marine seismic survey; Registro de avistagens de Megaptera Novaeangliae (Borowski, 1781) no litoral capixaba durante levantamento sismico maritimo."
Brazil.
@misc{etde_21116492,
title = {Megaptera Novaeangliae sightings recorder (Borowski, 1781) in the capixaba coast during marine seismic survey; Registro de avistagens de Megaptera Novaeangliae (Borowski, 1781) no litoral capixaba durante levantamento sismico maritimo}
author = {Costa, Leandro Damiao S. da, Almeida, Alexandre N. Ferraz de, Uller, George A, Oliveira, Joao Luiz Martinez de, Derntl, Jose Renato, Pereira, Edisio, Silva, Camila C. da, and Miranda, Cristina M. de}
abstractNote = {This work presents Megaptera novaeangliae (Humpback Whale) sightings recorded during CGG seismic survey along south of Espirito Santo coast. The seismic vessel executed transects perpendicular to the coastline between 50 and 3.200 m depth. Two environmental technicians recorded all sightings during seismic survey; They worked on the highest point of the vessel (bridge) observing the presence and behavior of the marine biota around vessel. There were recorded 38 sightings of Humpback Whales and a total of 81 organisms. 61% of the sightings were concentrated between 40 and 80 m depth. About 60,5% of the sightings were recorded females with puppies, mainly in the afternoon. There were observed no difference between sightings with the source working on and off. The results obtained suggest similarity between the number of sightings and the distance of the animals related to seismic source activity, suggesting non evasive behavior, as well as any indicative change on the behavior regarding to the presence of the Seismic Vessel. Nevertheless, we know that it's necessary to make more studies to obtain definitive conclusions about the subject. (author)}
place = {Brazil}
year = {2004}
month = {Jul}
}
title = {Megaptera Novaeangliae sightings recorder (Borowski, 1781) in the capixaba coast during marine seismic survey; Registro de avistagens de Megaptera Novaeangliae (Borowski, 1781) no litoral capixaba durante levantamento sismico maritimo}
author = {Costa, Leandro Damiao S. da, Almeida, Alexandre N. Ferraz de, Uller, George A, Oliveira, Joao Luiz Martinez de, Derntl, Jose Renato, Pereira, Edisio, Silva, Camila C. da, and Miranda, Cristina M. de}
abstractNote = {This work presents Megaptera novaeangliae (Humpback Whale) sightings recorded during CGG seismic survey along south of Espirito Santo coast. The seismic vessel executed transects perpendicular to the coastline between 50 and 3.200 m depth. Two environmental technicians recorded all sightings during seismic survey; They worked on the highest point of the vessel (bridge) observing the presence and behavior of the marine biota around vessel. There were recorded 38 sightings of Humpback Whales and a total of 81 organisms. 61% of the sightings were concentrated between 40 and 80 m depth. About 60,5% of the sightings were recorded females with puppies, mainly in the afternoon. There were observed no difference between sightings with the source working on and off. The results obtained suggest similarity between the number of sightings and the distance of the animals related to seismic source activity, suggesting non evasive behavior, as well as any indicative change on the behavior regarding to the presence of the Seismic Vessel. Nevertheless, we know that it's necessary to make more studies to obtain definitive conclusions about the subject. (author)}
place = {Brazil}
year = {2004}
month = {Jul}
}