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14
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Introduction
Current institution
Current position
- Professor of Biology and Ecology
Publications
Publications (14)
Despite the importance of coastal habitats for the provision of many ecosystem services, these areas are currently among the most impacted by human activities. Impacts on coastal ecosystems may affect many key species, such as the Guiana dolphin, which inhabits Sepetiba Bay in south‐eastern Brazil, a highly degraded environment owing to a human‐ind...
Animal vocalizations have nonlinear characteristics responsible for features such as subharmonics, frequency jumps, biphonation, and deterministic chaos. This study describes the whistle repertoire of a short-beaked common dolphin (Delphinus delphis) group at Brazilian coast and quantifies the nonlinear features of these whistles. Dolphins were rec...
Bryde’s whales, Balaenoptera edeni Anderson, 1879, were observed on 17 occasions (N = 21 surveys) in the coastal waters off Rio de Janeiro in southeastern Brazil during austral summer through autumn 2014. Five whales were individually identified using photo-identification techniques. The mean interval between resightings for all individuals was 12....
Photo-identification technique was
applied to Bryde’s whales off the coast of Cabo Frio region, south-eastern Brazil between December 2010 and November
2012. Twenty-five individuals were sighted on nineteen different days and, of these total, nine were individually identified
using natural marks on the dorsal fin. Of these, two individuals were...
Photo-identification technique was applied to Bryde’s whales off the coast of Cabo Frio region, south-eastern Brazil between December 2010 and November 2012. Twenty-five individuals were sighted on nineteen different days and, of these total, nine were individually identified using natural marks on the dorsal fin. Of these, two individuals were see...
The Bryde's whale (Balaenoptera edeni) is a spe-cies commonly documented along the southeast coast of Brazil, but nothing is known about their vocalizations in this area. Underwater record-ings were gathered in an opportunistic manner when the species was present along the coast of the Rio de Janeiro State. A total of 143 min of recordings was anal...
O golfinho-flíper (Tursiops truncatus) é uma das espécies mais populares de golfinhos, principalmente pela existência do seriado de televisão americano da década de 1960, cujo prota-gonista era um golfinho denominado Flipper e por ser uma das espécies de cetáceos mais comumente exibidas em oceanários. Também é conhecido como golfinho-nariz-de-garra...
A Baleia de Bryde (Balaenoptera edeni) é uma das Baleias me-nos conhecidas em todo o mundo, apesar de sua distribuiçãoo ser ampla,, podendo ser encontrada em águas troPicais e temPeradas dos oceanos atlântico, Pacífico e índico, entre as coordenadas 40ºn e 40ºs. Os indivíduos dessa espécie podem atingir até 15,5m e pesarem até 16 to-neladas. Em méd...
To verify the movements of the rough-toothed dolphin (Steno bredanensis) on the coast of Rio de Janeiro State, south-eastern Brazil, we performed a photo-identification comparison between the catalogued individuals of Rio de Janeiro City (22°54′10″S–43°12′27″W) (N = 30) during August and September 2011 and the Cabo Frio region (22°52′46″S–42°01′07″...
According to the "signature whistle" hypothesis, dolphins emit stereotypic sequential whistles whose function is to transmit the identity and location of the whistling animal. However, it has also been proposed that the information signature may be expressed by distinct acoustical features within a single type of whistle shared by a population of d...
Sotalia fluviatilis was the only cetacean species observed in all 16 boat surveys (82 h) conducted in the Sepetiba Bay (22° 58′, 44° 02′W), between December 1993 and August 1995. During the boat survey of 5 January, 1995—a very calm day (Beaufort = 1)—it was possible to make good subaquatic sound recordings (30 min) of a group of ca. 20 young and s...
