Results 11 to 20 of about 2,162 (213)

Electroreception in the Guiana dolphin (Sotalia guianensis) [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2011
Passive electroreception is a widespread sense in fishes and amphibians, but in mammals this sensory ability has previously only been shown in monotremes. While the electroreceptors in fish and amphibians evolved from mechanosensory lateral line organs, those of monotremes are based on cutaneous glands innervated by trigeminal nerves.
Nicole U, Czech-Damal, Alexander, Liebschner, Lars, Miersch, Gertrud, Klauer, Frederike D, Hanke, Christopher, Marshall, Guido, Dehnhardt, Wolf, Hanke   +7 more
openaire   +3 more sources

Morphology of the Tympano-Periotic Complex in Stranded Odontocetes in Northeast Brazil. [PDF]

J Morphol
This study presents the morphological and morphometric characterization of the tympano‐periotic complex (TPC) in six odontocete species stranded along the northeastern coast of Brazil. A total of 57 TPCs were analyzed, revealing interspecific differences in key anatomical features and supporting taxonomic differentiation.
Colombini-Corrêa G, Morell M, Fragoso ABL, Farias DSD, Silva FJL, Gavilan SA.   +5 more
europepmc   +2 more sources

Interspecific Associations of the Rare and Endangered Stingray (<i>Styracura schmardae</i>) in Caribbean Sandy-Bottom Habitats. [PDF]

Ecol Evol
We document novel interspecific associations of the endangered Atlantic chupare stingray (Styracura schmardae) in Caribbean sandy‐bottom habitats. Observations include nuclear–follower interactions with needlefish (Strongylura marina) and hitchhiking by sharksuckers (Echeneis naucrates), revealed through direct in situ records and citizen science data ...
de Carvalho-Souza GF, Sparaventi E, Echeverría-Sáenz S.   +2 more
europepmc   +2 more sources

Portable Molecular Diagnostics for Cetacean Morbillivirus: Development of a Reverse Transcription Insulated Isothermal PCR (RT-iiPCR) for Global Surveillance. [PDF]

Transbound Emerg Dis
Cetacean morbillivirus (CeMV) drives recurrent unusual‐mortality events, yet surveillance is uneven where laboratory capacity is limited. We developed a portable reverse transcription‐insulated isothermal PCR (RT‐iiPCR) assay targeting a conserved phosphoprotein (P)‐gene segment and evaluated analytical performance, tissue‐level clinical sensitivity ...
Lattao C, Hsieh CC, Obusan MCM, Fernández A, West K, Groch KR, Catão-Dias JL, Shen KN, Yang WC.   +8 more
europepmc   +2 more sources

Behaviour of Sotalia guianensis (van Bénéden, 1864) (Cetacea, Delphinidae) and ethnoecological knowledge of artisanal fishermen from Canavieiras, Bahia, Brazil [PDF]

Journal of Ethnobiology and Ethnomedicine, 2012
Artisanal fishermen, because of their direct and frequent contact with the aquatic environment, possess a wealth of knowledge about the natural history of the fauna of the region in which they live.
Costa Martha Eloy, Le Pendu Yvonnick, Neto Eraldo Medeiros   +2 more
doaj   +2 more sources

Polyomavirus surveillance in cetaceans of Brazil: first detection of polyomavirus in Guiana dolphins ( Sotalia guianensis ) [PDF]

Veterinary Quarterly
Polyomaviruses (PyVs) are small double-stranded DNA viruses able to infect species across all vertebrate taxa. In cetaceans, PyVs have been reported only in short-beaked common dolphin (Delphinus delphis), common bottlenose dolphin (Tursiops truncatus) and killer whale (Orcinus orca).
Duarte-Benvenuto, Aricia, Díaz-Delgado, Josué, Ewbank, Ana Carolina, Groch, K. R., Dal Bianco, Vanessa, Costa-Silva, Samira, Zamana-Ramblas, Roberta, Favero, Cíntia, Castaldo Colosio, A., Gomes da Cunha Ramos, Hernani, Santos-Neto, E. B., Lailson-Brito, J., Carvalho, Vitor L., Lanes Ribeiro, V, Pacheco Bertozzi, Carolina, Freitas Pessi, Caroline, Sacristán, Irene, Catão-Dias, J. L., Sacristán, Carlos   +18 more
openaire   +5 more sources

New records of Nasitrema atenuatta and Nasitrema globicephalae (Trematoda: Brachycladiidae) Neiland, Rice and Holden, 1970 in delphinids from South Atlantic [PDF]

Check List, 2013
Twenty-one Sotalia guianensis (van Bénéden, 1864) and one Steno bredanensis (Lesson, 1828) stranded on Brazilian coast were necropsied. Two species of Nasitrema (Trematoda: Brachycladiidae) Ozaki, 1935, were identified in the respiratory tract of the ...
Mariana Ebert, Ana Valentere
doaj   +3 more sources

Who Is in Handicrafts: Tooth Morphology and Age Determination as Tools to Assess Vulnerable Dolphins Sotalia spp. Supplying the Trade of Artisanal Charms in Brazil

Frontiers in Marine Science, 2022
In Brazil, dolphins’ body parts are commonly used as traditional amulets, named as love-charms, while dolphins’ teeth are commercialized in handcrafted necklaces and bracelets.
Greicy F. Ruenes, Greicy F. Ruenes, Greicy F. Ruenes, Larissa R. de Oliveira, Larissa R. de Oliveira, Renata Emin-Lima, Renata Emin-Lima, Alexandra Fernandes Costa, Alexandra Fernandes Costa, Fernanda Löffler Niemeyer Attademo, Fábia de Oliveira Luna, Salvatore Siciliano, Salvatore Siciliano, Salvatore Siciliano   +13 more
doaj   +1 more source

High-frequency social communication in Sotalia guianensis [PDF]

The Journal of the Acoustical Society of America, 2019
This study aimed to investigate the use of high ultrasonic frequencies (above 40 kHz) in the Sotalia guianensis whistle repertoire. The whistles were classified as high-frequency (HF) whistles and very high-frequency (VHF) whistles. Seven parameters were extracted and a general linear mixed effects model was performed between the total number of ...
Mariana, Barbosa, Lis, Bittencourt, Luciana, G Andrade, Tatiana, L Bisi, José, Lailson-Brito, Alexandre, F Azevedo   +5 more
openaire   +2 more sources

Lateralized behavior in Guiana dolphins, Sotalia guianensis, at Pipa Beach, RN, Brazil [PDF]

Brazilian Journal of Biology, 2013
T. Casagrande, VO. Lunardi, DG. Lunardi
doaj   +6 more sources