Results 171 to 180 of about 1,991 (202)

Artisanal fishing affects the local distribution of broad‐snouted caiman (Caiman latirostris) within the Atlantic Forest of Brazil

Aquatic conservation
Artisanal fishing is an important subsistence practice in freshwater habitats worldwide, but overexploitation threatens the conservation of several nontarget species including crocodylians.
P. Mascarenhas-Junior, Bradley A. Strickland, M. Heithaus, Rayssa L. Santos, R. S. Barboza, P. I. Simões, J. Correia   +6 more
semanticscholar   +1 more source

Hybridization patterns and evolutionary clues in broad‐snouted caiman and yacare caiman: Insights from phylogeographic and ecological analyses

Journal of Zoology
Our study explores the dynamics of introgressive hybridization between two sympatric crocodilian species, Caiman latirostris and Caiman yacare, shedding light on the ongoing genetic exchange.
G. Pacheco-Sierra, P. Amavet, P. Siroski, C. Pina, C. Patrón-Rivero, C. Yáñez-Arenas   +5 more
semanticscholar   +1 more source

Optimizing Protocols for High-Quality RNA Extraction from Blood and Liver Tissues of the Broad-Snouted Caiman

Russian Journal of Herpetology, 2021
Transcriptomic information provides fundamental insights into biological processes and can be used to determine gene expression in cell, tissue, or organism under specific physiological conditions, or in response to any environmental perturbation ...
E. C. López González, L. Odetti, G. Poletta, N. Denslow, K. Kroll, P. Siroski, M. V. Parachú Marcó   +6 more
semanticscholar   +1 more source

A true facultative carnivore? Effects of replacing ground chicken carcasses with soybean meal on the growth of captive broad-snouted caiman (Caiman latirostris) and its economics implications.

Journal of animal physiology and animal nutrition
A specific diet for broad-snouted caiman, Caiman latirostris has not been designed despite the value of farm-raised caiman as an aquaculture product. To fill this gap, the objectives of this study were to evaluate the performance dietary replacement of ...
Samuel Hilevski, Charlie Manolis, P. Siroski   +2 more
semanticscholar   +1 more source

Nondestructive Evaluation of Metal Bioaccumulation and Biochemical Biomarkers in Blood of Broad‐Snouted Caiman (Caiman latirostris) from Northeastern Brasil

Environmental Toxicology and Chemistry
Studies on the bioaccumulation and toxicity of contaminants in Crocodylians are scarce. We evaluated alterations in concentrations of the nondestructive biomarkers butyrylcholinesterase (BChE), glutathione‐S‐transferase (GST), superoxide dismutase (SOD),
R. L. dos Santos, C. F. Mariz, P. Mascarenhas-Junior, R. S. Barboza, E. M. dos Santos, Jozélia Maria de Sousa Correia, Paulo Sérgio Martins de Carvalho   +6 more
semanticscholar   +1 more source

Biomarkers of geno- and cytotoxicity in the native broad-snouted caiman (Caiman latirostris): Chromosomal aberrations and mitotic index.

Mutation research, 2021
We evaluated the sensitivity of the chromosomal aberration (CA) and mitotic index (MI) assays on peripheral blood lymphocytes (PBLs) of Caiman latirostris, following ex vivo exposure to the alkylating agent, MMS.
Camila F Chacón, E. C. López González, G. Poletta   +2 more
semanticscholar   +1 more source

Exposure to xenoestrogens alters the expression of key morphoregulatory proteins of oviduct adenogenesis in the broad-snouted caiman (Caiman latirostris).

Aquatic Toxicology, 2021
Endocrine disrupting compounds (EDCs) are contaminants ubiquitously found in the environment, which pose a potential threat to aquatic and wetland ecosystems.
Y. Tavalieri, R. Alarcón, M. Tschopp, G. Canesini, E. Luque, M. Muñoz-de-Toro, G. Galoppo   +6 more
semanticscholar   +1 more source

Temporal fluctuations in the sex ratio of a broad-snouted caiman (Caiman latirostris) population in a highly impacted Atlantic Forest of Brazil

Wildlife research (East Melbourne)
The sex ratio of a population dictates intraspecific interactions, including agonistic behaviours and mating. Moreover, discrepancies in the male-to-female proportion may reduce reproductive processes and threaten population maintenance.
P. Mascarenhas-Junior, P. I. Simões, Haggy Rodrigues dos Anjos, R. S. Barboza, E. M. dos Santos, J. Correia   +5 more
semanticscholar   +1 more source

ISOLATION OF SALMONELLA SPP. FROM YACARE CAIMAN (CAIMAN YACARE) AND BROAD-SNOUTED CAIMAN (CAIMAN LATIROSTRIS) FROM THE ARGENTINE CHACO

Journal of Wildlife Diseases, 2011
Presence of Salmonella spp. was evaluated in yacare caiman (Caiman yacare) and broad-snouted caiman (Caiman latirostris) from a ranching facility in the Argentine Chaco. Crocodilian ranching programs are based on captive breeding of wild-harvested eggs and release of excess hatchlings into the wild.
Marcela, Uhart, Hebe, Ferreyra, Rosana, Mattiello, María Inés, Caffer, Raquel, Terragno, Adriana, Schettino, Walter, Prado   +6 more
openaire   +2 more sources

Corticosterone levels and immunological indices in stressed juvenile broad‐snouted caimans

Journal of Zoology, 2017
AbstractThe effect of stress in wild vertebrates has been little investigated, especially in crocodilians. In the wild, crocodilians face numerous stressors such as climatic factors, toxicant exposure, and infection. Exposure to stressors may affect the physiological processes of crocodilians, with consequences on its fitness and survival.
Moleón Bersani, María Soledad, Parachu Marco, Maria Virginia, Pietrobon, Elisa Olivia, Jahn, Graciela Alma, Beldomenico, Pablo Martín, Siroski, Pablo Ariel   +5 more
openaire   +2 more sources