Results 61 to 70 of about 1,295 (173)

Freshwater megafauna shape ecosystems and facilitate restoration

Biological Reviews, Volume 99, Issue 4, Page 1141-1163, August 2024.
ABSTRACT Freshwater megafauna, such as sturgeons, giant catfishes, river dolphins, hippopotami, crocodylians, large turtles, and giant salamanders, have experienced severe population declines and range contractions worldwide. Although there is an increasing number of studies investigating the causes of megafauna losses in fresh waters, little attention
Fengzhi He, Jens‐Christian Svenning, Xing Chen, Klement Tockner, Tobias Kuemmerle, Elizabeth le Roux, Marcos Moleón, Jörn Gessner, Sonja C. Jähnig   +8 more
wiley   +1 more source

Alimentación del delfín costero, Sotalia guianensis (Cetacea: Delphinidae), en la bahía Norte al sur de Brasil [PDF]

, 2011
The stomach contents of 18 Guiana dolphins stranded or accidentally caught by fishing around Norte Bay of Santa Catarina Island between 1990 and 2006 were examined. The small population of Guiana dolphins studied showed a varied diet, and prey was caught
Daura-Jorge, Fábio G., Simões-Lopes, Paulo C., Wedekin, Leonardo L.   +2 more
core   +6 more sources

Review of lobomycosis and lobomycosis-like disease (LLD) in Cetacea from South America. Scientific Committee document SC/60/DW13, International Whaling Commission, June 2008, Santiago, Chile [PDF]

, 2008
Caused by a yeast-like organism known as Lacazia loboi, Lobomycosis (or lacaziosis) naturally affects humans, common bottlenose dolphins (Tursiops truncates) inhabiting coastal waters from southern Brazil to Gulf of Mexico and Atlantic coast of Florida ...
Crespo, E.A., Echegaray, M., Flach, L., Flores, P.A.C., Félix, F., Klaich, M.J., Moreno, I.B., Ott, P.H., Reyes, J.C., Sanino, G.P., Santos, M.C.O., Siciliano, S., Tavares, M., Van Bressem, M.-F., Van Waerebeek, K., Viddi, F.   +15 more
core  

How fish populations in Lake Bafa (Western Anatolia) respond to ecological shifts

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 5, May 2024.
Abstract Long‐term biodiversity monitoring is crucial for freshwater ecosystems as it enables the detection of even subtle changes and biodiversity trends, guiding conservation efforts and ensuring the sustainability of these vital habitats. Despite becoming more commonly considered in the field of freshwater ecology and biological invasions, studies ...
Irmak Kurtul, Cüneyt Kaya, Hakan Kaykaç, Ali Ilhan, F. Ozan Düzbastilar, Zafer Tosunoğlu, Hasan M. Sari, Paride Balzani, Ali Serhan Tarkan, Phillip J. Haubrock   +9 more
wiley   +1 more source

Social Interactions Between Tucuxis and Bottlenose Dolphins in Gandoca-Manzanillo, Costa Rica [PDF]

, 2005
Studies measuring the extent of interspecific interactions between dolphin species are rare. We observed free-ranging tucuxis (Sotalia fluviatilis) and bottlenose dolphins (Tursiops truncatus) to document the frequency of occurrence of interspecific ...
Acevedo-Gutiérrez, Alejandro, DiBerardinis, Ann, Forestell, Paul, Larkin, Katrina, Larkin, Shawn   +4 more
core   +2 more sources

The Gonads of the South American Dolphins, Inia geoffrensis, Pontoporia blainvillei, and Sotalia fluviatilis

Journal of Mammalogy, 1971
The appearances of the gonads are described in males and females of 18 Inia geoffrensis , 11 Pontoporia blainvillei , and eight Sotalia fluviatilis from South America. Males of I. geoffrensis become sexually active at a length of about 228 centimeters, females at 175 to 180 centimeters.
Harrison, Richard J., Brownell, Robert L., Jr.   +1 more
openaire   +3 more sources

PESCA INTERATIVA ENTRE GOLFINHO Sotalia fluviatilis guianensis E A COMUNIDADE PESQUEIRA DA REGIÃO DE CANANÉIA

Boletim do Instituto de Pesca, 2018
Ao longo de oito anos foram realizadas observações do comportamento de pesca do golfinho Sotalia fluviatilis guianensis na região do complexo estuarino-lagunar de Cananéia, sul do Estado de São Paulo.
Emygdio Leite de Araujo MONTEIRO-FILHO
doaj  

Updated revision of the marine mammals collection housed at the Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" (Buenos Aires, Argentina) [PDF]

, 2010
Se realizó una revisión de los ejemplares de la Colección de Mamíferos Marinos del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". La misma indicó que del total de ejemplares catalogados (n=378), el 56.9% corresponde a Cetacea mientras que ...
Bustos, Raimundo Lucas, Daneri, Gustavo Adolfo, Di Martino, Cecilia C., Harrington, Ana, Montiel, Ricardo Alberto, Negri, Maria Fernanda, Vaccaro, Olga Beatriz, Varela, Esperanza Amalia, Viola, M. Natalia Paso, Zambrana, Mercedes M.   +9 more
core  

Aspectos Morfológicos do cordão umbilical de búfalos (Bubalus bubalis) [PDF]

, 2009
Buffalo is an important livestock resource, with a great participation in agricultural systems, providing milk, meat, and work power. Umbilical cord is responsible for maternal-fetal nutrients exchange during pregnancy, and its alterations can compromise
BRANCO, Érika, CABRAL, Rosa, CARVALHO, Ana F., FERREIRA, Guilherme J., FIORETTO, Emerson T., GREGORES, Guilherme B., LIMA, Ana Rita de, MIGLINO, Maria Angelica, SARMENTO, Carlos Alberto P.   +8 more
core   +2 more sources

Initial description of Major Histocompatibility Complex variation at two Class II loci (DQA-DQB) in Sotalia fluviatilis and Sotalia guianensis

Latin American Journal of Aquatic Mammals, 2010
ABTRACT: Los genes del complejo mayor de histocompatibilidad (MHC) desempeñan un papel clave en el inicio de la respuesta inmune en los vertebrados con mandíbula. La variación en los loci del MHC se puede utilizar como un indicador de la "salud" genética de las poblaciones naturales y ofrece información sobre la posible susceptibilidad a la epizootia ...
Susana Caballero, Dorothea Heimeier, Fernando Trujillo, Juliana A. Vianna, Héctor Barrios–Garrido, M. G. Montiel, Sandra Beltrán-Pedreros, Míriam Marmontel, M. C. O. Santos, Marcos R. Rossi‐Santos, Fabrício R. Santos, C Baker   +11 more
openaire   +2 more sources