Results 41 to 50 of about 154 (127)

Inclusion of Mannan-Oligosaccharides in Diets for Tropical Gar Atractosteus tropicus Larvae: Effects on Growth, Digestive Enzymes, and Expression of Intestinal Barrier Genes

Fishes, 2022
Mannan-oligosaccharides (MOS) are non-digestible carbohydrates, and their use in aquaculture as prebiotics is well documented. The objective of this work was to test whether MOS supplemented in the diet of A.
Claudia I. Maytorena-Verdugo, Emyr S. Peña-Marín, Carina S. Alvarez-Villagómez, Graciela M. Pérez-Jiménez, César A. Sepúlveda-Quiroz, Carlos A. Alvarez-González   +5 more
doaj   +1 more source

Determination of optimal prey for rearing tropical gar Atractosteus tropicus (Lepisosteiformes: Lepisosteidae)

Revista de Biología Tropical, 2018
Larval feeding studies of both ornamental and consumable fish species are important for formulating successful management, and culture strategies for conservation purposes. In the present study, we evaluated prey selectivity for the tropical gar Atractosteus tropicus in the larval stage (first 8 weeks) using the zooplankton Artemia fransiscana, Daphnia
Luis Humberto Escalera-Vázquez, Omar Domínguez-Domínguez, Eduardo Molina-Domínguez, S.S.S. Sarma, S. Nandini   +4 more
openaire   +5 more sources

Modulation of Gene Expression in the Digestive Tract of the Tropical Gar (Atractosteus tropicus) in Response to Cricket Meal (Acheta domesticus)

Fishes
The tropical gar (Atractosteus tropicus Gill, 1863) is a prehistoric fish of high nutritional value in southern Mexico and Central America. However, some aspects related to the effects caused by alternative protein sources, such as insect meal, as a ...
Fanny Janet De la Cruz-Alvarado, Bartolo Concha Frías, María Guadalupe López-Cerino, Carlos Alfonso Álvarez-González, Gabriela Gaxiola-Cortés, Joe Luis Arias-Moscoso, Jaime Bautista-Ortega, Sergio Hernández-García, David Julián Palma-Cancino   +8 more
doaj   +1 more source

Peces nativos y pesca artesanal en la cuenca Usumacinta, Guatemala

Revista Mexicana de Biodiversidad, 2018
La ictiofauna nativa de la cuenca del río Usumacinta se documentó en el noroeste de Guatemala para conocer la composición de los peces nativos en 20 sitios y su importancia en la pesca artesanal.
Christian Barrientos, Yasmín Quintana, Diego J. Elías, Rocío Rodiles-Hernández   +3 more
doaj   +1 more source

Survival and Behavior of Amphibians in a Seasonally Flooded Tropical Forest

Biotropica, Volume 58, Issue 4, July 2026.
How do tropical amphibians survive seasonal flooding? A three‐year capture–mark–recapture study in Costa Rica revealed species‐specific responses to flood events, with flooding reducing apparent survival in some species while others persisted through behavioral adaptations and use of arboreal refugia.
Todd R. Lewis, Paul B. C. Grant, Rowland K. Griffin, Alex Figueroa, Gabriel David, Harry T. Bailey, Colin Ryall, Thomas C. LaDuke   +7 more
wiley   +1 more source

Mexican Freshwater Fish: Identifying Conservation Priorities and High‐Risk Areas for Fisheries Under Climate Change

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Freshwater fish are essential components of aquatic ecosystems, providing key ecological functions and supporting livelihoods. Climate change poses a significant threat to freshwater biodiversity; consequently, both its conservation and the food security it sustains may be at risk.
Rafael Sebastián Muratalla‐Miranda, Luis Fernando Del Moral‐Flores, Ángela P. Cuervo‐Robayo, Carolina Ureta   +3 more
wiley   +1 more source

ESTUDIO DEL CICLO REPRODUCTIVO DE HEMBRAS DEL PEJELAGARTO Atractosteus tropicus

Kuxulkab', 2014
Se capturaron setenta y dos hembras sexualmente maduras del pejelagarto "Atractosteus tropicus" en poblaciones de la Laguna de Pomposú del municipio de Jalpa de Méndez, Tabasco, México, durante octubre 2003 a julio 2005. Con una longitud total (Lt) mínima de 36 cm.
Otilio Mendez Marín, Arlette A. Hernández Franyuti, M. C. Uribe Aranzábal, Wilfrido Miguel Contreras Sánchez   +3 more
openaire   +1 more source

Novel Endogenous Probiotics Enhance Host Intestinal Health, Liver Immune Capacity, Meat Nutritional Composition, and Aquatic Environmental Quality in Pelodiscus sinensis

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
Currently, the in‐depth research and practical application of probiotics in the green and healthy breeding of Chinese soft‐shelled turtles (Pelodiscus sinensis) remain limited. This study conducted a 30‐day feeding trial with turtles of an initial weight of 528.95 ± 2.96 g. The aim was to evaluate the effects of three endogenous probiotics—Enterococcus
Yuhong Liao, Hao Fu, Ganlin Lv, Huihui Quan, Qing Qiu, Huahua Mao, Jubin Xing, Zirui Wang, Qingman Yang, Xionge Pi, Afaf N. Abdel Rahman   +10 more
wiley   +1 more source

Aprovechamiento de peces forrajeros en la alimentación del Pejelagarto Atractosteus tropicus Gill en jaulas flotantes en el Estado de Tabasco, México

Ecosistemas y Recursos Agropecuarios, 2014
El siguiente estudio se llevó a cabo en el proyecto Zanapa - Tonalá del Estado de Tabasco de octubre de 1988 a abril de 1989. Para obtener el articulo completo pueden contactar al Editor de la Revista Ecosistemas y Recursos Agropecuarios en el ...
Eduardo Maldonado-Chávez
doaj   +1 more source

A Terrestrial Thermometer Using Carbonate Clumped Isotopes From Gar Scales

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.
Abstract We present a new clumped isotope calibration relating temperature to the Δ47 composition of the bioapatite scales of gar fish (Lepisosteidae family). Modern gars live at <∼3 m depth in rivers and lakes, are non‐migratory, and their scales grow continuously over their lifespan (∼8–14 years).
Katelyn E. Gray, Mark T. Brandon
wiley   +1 more source