Consulta: creatorFacets:"Simões-Lopes,Paulo C."
Registros recuperados: 14
Data/hora: 09/06/2024 09:40:46

Prey consumed by Guiana dolphin Sotalia guianensis (Cetacea, Delphinidae) and franciscana dolphin Pontoporia blainvillei (Cetacea, Pontoporiidae) in an estuarine environment in southern Brazil
Provedor de dados: Iheringia Série Zoologia
Autores: Cremer,Marta J.; Pinheiro,Pedro C.; Simões-Lopes,Paulo C.
The present study provides information about the diet of sympatric populations of small cetaceans in the Babitonga Bay estuary. This is the first study on the diet of these species in direct sympatry. The stomach contents of seven Guiana dolphins Sotalia guianensis and eight franciscanas Pontoporia blainvillei were analyzed. The prey of both cetaceans was mostly teleost fishes, followed by cephalopods. We identified 13 teleost fishes as part of the diet of the franciscanas, and 20 as part of the diet of Guiana dolphins. Lolliguncula brevis was the only cephalopod recorded, and was the most important prey for both cetaceans. Stellifer rastrifer and Gobionellus oceanicus were also important for franciscana, so as Mugil curema and Micropogonias furnieri were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diet; Babitonga Bay; Cetacean; Fish; Cephalopod.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000200003

Osteological alterations in the tucuxi Sotalia fluviatilis (cetacea, delphinidae)
Provedor de dados: Iheringia Série Zoologia
Autores: Fettuccia,Daniela de C.; Silva,Vera M. F. da; Simões-Lopes,Paulo C.
We present a description of osteological alterations observed in the tucuxi, Sotalia fluviatilis (Gervais, 1853) from a sample of 43 specimens. Fractures were the most frequent alterations in the sample (16%), occurring in various regions of the skeleton such as the ribs, hyoid apparatus, transverse and neural processes of vertebrae and scapula. We observed three individuals with ankylosis between the cervical vertebrae and two individuals with morphological changes (cranio-caudally elongated hemal arch and flattened cranial margin of the scapula). The only observed pathology was a case of osteomyelitis in the left dentary, which caused the loss of teeth, deformation of the associated alveoli and the formation of a medial fistula (lingual) for drainage of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pathology; Bone fractures; Ankylosis; Osteomyelitis.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000300007

Lista dos mamíferos do Estado de Santa Catarina, Sul Do Brasil
Provedor de dados: Mastozoología Neotropical
Autores: Cherem,Jorge J.; Simões-Lopes,Paulo C.; Althoff,Sérgio; Graipel,Maurício E.
The mammal fauna from Santa Catarina State, southern Brazil, is one of the least known of the country. Works on terrestrial mammals are scarce and new species of aquatic mammals have been registered in the last years. For that reason, a commented list of the mammals of Santa Catarina based on data gathered from scientific collections and bibliographical references are presented. One hundred and fifty-two species of confirmed occurrence, 59 species of possible occurrence and six species/subspecies with erroneous record for the state were registered.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: List; Mammals; Santa Catarina State; Southern Brazil.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832004000200002

Behavioral responses of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae), to satellite transmitter deployment procedures
Provedor de dados: Revista Brasileira de Zoologia
Autores: Alves,Luiz Cláudio P. de S.; Moreira,Sérgio; Simões-Lopes,Paulo C.; Andriolo,Artur.
Tagging whales with implantable satellite transmitters creates the possibility of disturbing the animals. Between 2003 and 2005, behavioral observations of humpback whales during tag deployment operations were conducted off the coast of Brazil from the flying bridge of a speedboat. The speed achieved by each whale during pursuit was registered by GPS receivers onboard two inflatable zodiac boats. Respiratory frequencies were significantly lower (n = 15, p &lt; 0.05) before (mean = 0.89 ± 0.06 blows/min) compared with after (1.39 ± 0.15) tagging. The same effect was observed for the speed of each animal (mean = 10.96 ± 0.44 km/h and 12.54 ± 0.57 km/h; n = 13, p &lt; 0.05). Both variables were positively correlated with the duration of the pursuit (n = 21, r...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Respiratory frequency; Satellite telemetry.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100001

Review of thirty-two years of toothed whale strandings in Santa Catarina, southern Brazil (Cetacea: Odontoceti)
Provedor de dados: Revista Brasileira de Zoologia
Autores: Vianna,Thaís dos S.; Loch,Carolina; Castilho,Pedro V. de; Gaidzinski,Morgana C.; Cremer,Marta J.; Simões-Lopes,Paulo C.
ABSTRACT Marine mammal strandings provide valuable insights into local biodiversity. Strandings can be caused by both natural and anthropogenic factors. In the state of Santa Catarina, Southern Brazil, organized marine mammal collections started in the 1980s through opportunistic and non-systematic collection efforts, representing a record of over 30 years of marine biodiversity. This study aimed to perform a preliminary review of 32 years of stranding records within this region. The secondary aim was to elucidate the stranding dynamics of the three most commonly recorded species. A total of 460 records were obtained, representing 17 species of odontocetes. The species registered most frequently were the franciscana, Pontoporia blainvillei (Gervais &amp;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bycatch; Marine mammals; Pontoporia blainvillei; Sotalia guianensis; Tursiops truncatus.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000500601

Distribution and relative abundance of large whales in a former whaling ground off eastern South America
Provedor de dados: Revista Brasileira de Zoologia
Autores: Andriolo,Artur; Rocha,Jesuina M. da; Zerbini,Alexandre N.; Simões-Lopes,Paulo C.; Moreno,Ignacio B.; Lucena,Alineide; Danilewicz,Daniel; Bassoi,Manuela.
Ship-based sighting surveys for cetaceans were conducted in the former whaling ground off the northeastern coast of Brazil. The cruises took place in winter and spring of 1998-2001 with the objectives of investigating current distribution and abundance of cetaceans, particularly large whale species taken during whaling. In 1998 the survey were conducted between the parallels 5°30'W and 9°S and the 200 m isobath and the meridian 033°W. A total of about 3,100 nm were surveyed between 1998 and 2001 Surveys were conducted using line transect methods from about 5-10°S, and from the coast to 33°W. A total of 151 sightings (203 individuals) of large whales were recorded on effort. The Antarctic minke whale - Balaenoptera bonaerensis (Burmeister, 1867) was the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryde's whale; Minke whale; Sei whale; Sperm whale; South Atlantic.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500011

Clues of cultural transmission in cooperative foraging between artisanal fishermen and bottlenose dolphins, Tursiops truncatus (Cetacea: Delphinidae)
Provedor de dados: Revista Brasileira de Zoologia
Autores: Simões-Lopes,Paulo C.; Daura-Jorge,Fábio G.; Cantor,Maurício.
Tipo: Info:eu-repo/semantics/other
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000600200

Numerical anomalies in the dentition of southern fur seals and sea lions (Pinnipedia: Otariidae)
Provedor de dados: Revista Brasileira de Zoologia
Autores: Loch,Carolina; Simões-Lopes,Paulo C.; Drehmer,César J.
Cases of dental agenesis, supernumerary teeth and dental losses are presented in three species of South American Otariids: Arctocephalus australis (Zimmermann, 1783), A. tropicalis (Gray, 1872) and Otaria flavescens (Shaw, 1800). For the first time, congenital and acquired dental anomalies were comparatively diagnosed in skull samples from southern Brazil and nearby areas. The skulls and mandibles were accessed in the scientific collection of mammals of the Federal University of Santa Catarina, southern Brazil. Agenesis was found only among maxillary post-canine teeth, especially the distal ones (PC/6), due to an evolutionary trend towards reduction of the number of post-canine teeth in this family. Maxillary and mandibular supernumerary teeth were found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arctocephalus australis; A. tropicalis; Dental agenesis; Otaria flavescens; Southern Brazil; Supernumerary teeth.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300023

The occurrence of Pontoporia blainvillei (Gervais &amp;amp; d'Orbigny) (Cetacea, Pontoporiidae) in an estuarine area in southern Brazil
Provedor de dados: Zoologia
Autores: Cremer,Marta J.; Simões-Lopes,Paulo C.
The toninha, or franciscana, Pontoporia blainvillei (Gervais &amp;amp; D'Orbigny, 1844), is an endemic species of cetacean of the southwestern Atlantic Ocean. There is little information on the occurrence of this species in its natural environment due to the great difficulty in sighting it. Systematized and non-systematized observations of franciscanas were made from December 1996 through November 2001 at Babitonga Bay, on the northern coast of Santa Catarina State, southern Brazil. The observations were made from small motorboats. A total of 79 observations were made, totaling 561 individuals. Up to 59.5% of the groups consisted of over four individuals and the average group size was seven. Calves were present in 30.4% of the observations. The species was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Group size; Distribution; South America.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300032

Behavioral patterns and movement intensity of Sotalia guianensis (P. J. van Bénéden) (Cetacea, Delphinidae) in two different areas on the Brazilian coast
Provedor de dados: Zoologia
Autores: Daura-Jorge,Fábio G.; Rossi-Santos,Marcos R.; Wedekin,Leonardo L.; Simões-Lopes,Paulo C.
The behavioral patterns of the estuarine dolphin, Sotalia guianensis (P. J. van Bénéden, 1864), were compared between two populations along the Brazilian coast: Caravelas (Bahia), along the eastern coast, and Norte Bay (Santa Catarina), along the southern coast. Applying the focal-group sampling in both areas, information such as the geographic position (UTM) of groups and predominant behavioral patterns were obtained. Geographic positions were used to calculate the total distance traveled by estuarine dolphin groups on each observation day. Since the distance traveled varies with time, the daily mean speed of the dolphin’s group was used as an index of movement intensity. Two comparable and easily recognizable behavioral patterns were considered:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Estuarine dolphin; Caravelas estuary; Norte Bay; Spatial requirements.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000200001

Morfologia do sincrânio do boto-cinza, Sotalia guianensis (P.J. van Bénéden) (Cetacea, Delphinidae)
Provedor de dados: Zoologia
Autores: Simões-Lopes,Paulo C.
Apresenta-se uma descrição da morfologia comparada do sincrânio de Sotalia guianensis (P.J. van Bénéden, 1864), incluindo suas variações ontogenéticas e intra-específicas. As descrições foram baseadas em 51 crânios completos ou parciais depositados na coleção do laboratório de Mamíferos Aquáticos, do Departamento de Ecologia e Zoologia, CCB, Universidade Federal de Santa Catarina. O sincrânio é bastante homogêneo e manifesta sua assimetria na morfologia dos ossos, passagens nasais e forames. O rostro é proporcionalmente estreito em relação aos outros Delphinidae do mesmo porte. A região temporal é circular em indivíduos jovens, mas se torna oval nos adultos onde se forma uma crista temporal evidente. O forame elíptico do periótico está presente tanto em...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomia; Morfologia do crânio; Ontogenia; Pequenos cetáceos; Variações intra-específicas.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000300007

Seasonal and daily patterns of group size, cohesion and activity of the estuarine dolphin, Sotalia guianensis (P.J. van Bénéden) (Cetacea, Delphinidae), in southern Brazil
Provedor de dados: Zoologia
Autores: Daura-Jorge,Fábio G.; Wedekin,Leonardo L.; Piacentini,Vítor de Q.; Simões-Lopes,Paulo C.
The resident population of estuarine dolphin, Sotalia guianensis (P.J. van Bénéden, 1864), in Norte Bay, Santa Catarina, southern Brazil, was studied from 2000 to 2003. Systematic one-day cruises were undertaken aboard a 5 m sail boat equipped with an outboard motor. Applying the focal-group method, information such as geographical position, predominant behavioural patterns, group size, cohesion index and the presence of calves, were registered at every five-minute interval, totalling 198 hours of direct observation of the dolphins. The estuarine dolphin used preferential areas for each behavioural pattern. The mean group size was approximately 29 individuals, and the presence of calves occurred throughout the entire year, but with a significant increase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behaviour; Ecology; Group organization; Norte Bay; Temporal patterns.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000400029

Dolphin interactions with the mullet artisanal fishing on Southern Brazil: a qualitative and quantitative approach
Provedor de dados: Zoologia
Autores: Simões-Lopes,Paulo C.; Fabián,Marta E.; Menegheti,João O.
A detailed analysis of the interactions between Tursiops truncatus (Montagu, 1821) and the artisanal fishing of mullets (Mugil spp.) is presented at two localities in the south of Brazil: Laguna (Santa Catarina) and Inibé/Tramandaí (Rio Grande do Sul). Its behavioral strategies and the advantages of their association are re-described and quantified based on the success of the capture and on the selectivity of the prey sizes. The mullets are the main resource involved (92% to 75%) both at numerical level and as biomass. Twenty individuals of Tursiops truncatus participated in the interactions in Laguna and 9 in Imbé/Tramandaí. The participation and learning of calves is also reported.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cetacea; Delphinidae; Tursiops truncatus; Ecology; Behavior; Artisanal fishery.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000300016

Distribution, abundance and density estimates of franciscanas, Pontoporia blainvillei (Cetacea: Pontoporiidae), in Babitonga bay, southern Brazil
Provedor de dados: Zoologia
Autores: Cremer,Marta J.; Simões-Lopes,Paulo C.
Pontoporia blainvillei (Gervais &amp;amp; d'Orbigny, 1844) is threatened throughout its distribution. The species can be found year-round in the Babitonga bay estuary (26º 02'-26º 28'S and 48º28'-48º50'W), in the north coast of the state of Santa Catarina, Brazil. Boat surveys were conducted in order to evaluate its abundance and density between 2000 and 2003. Sampling was random and stratified, with 46 transects in five sub-areas, comprising a total area of 160 km². Data collection was conducted following the linear transect method with distance sampling. A total of 1174.7 km was scanned and 38 groups were observed. Franciscanas were not uniformly distributed in Babitonga bay. Group size ranged from one to 13 animals (mean ± SD = 5.02 ± 3.62). Model 1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Concentration area; Distance sampling; Group size.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300003