Results 21 to 30 of about 154 (127)

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

Developmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova, Jan Stundl, Lenin Arias‐Rodriguez, Robert Cerny, Vladimír Soukup   +4 more
wiley   +3 more sources

Effect of β-Glucans in Diets on Growth, Survival, Digestive Enzyme Activity, and Immune System and Intestinal Barrier Gene Expression for Tropical Gar (Atractosteus tropicus) Juveniles

Fishes, 2018
The application of β-1,3/1,6-glucan derived from yeast at five concentrations (0%, 0.5%, 1.0%, 1.5%, and 2.0%) in formulated diets was evaluated in juveniles for its effects on the growth, survival, digestive enzymatic activity, and expression of ...
Karl Andree, CARLOS Alfonso Álvarez-González, Emyr Saul Pena-Marin   +2 more
exaly   +3 more sources

Range extension of Tropical Gar, Atractosteus tropicus Gill, 1863 (Lepisosteiformes, Lepisosteidae), to the Yucatan Peninsula, Mexico [PDF]

Check List
The distribution of Atractosteus tropicus Gill,1863 is represented by three separate populations, which range from southeastern Mexico to Costa Rica. Herein, we document the first record of A.
Luis Fernando Del Moral-Flores, Armando T. Wakida-Kusunoki, Daniel Martínez-Martínez, Giovanni Alberto Anguiano-Lara, Joshep Heredy Galindo-Hernández   +4 more
doaj   +5 more sources

Tryptophan Reduces Intracohort Cannibalism Behavior in Tropical Gar (Atractosteus tropicus) Larvae

Fishes
The intracohort cannibalism present in tropical gar larvae (A. tropicus) generates great problems in its culture, as in other fish species around the world.
César Antonio Sepúlveda-Quiroz, Graciela María Pérez-Jiménez, Gloria Gertrudis Asencio-Alcudia, Omar Mendoza-Porras, Luis Daniel Jiménez-Martínez, Mario A. Galaviz-Espinoza, Dariel Tovar-Ramirez, Rafael Martinez-Garcia, Carina Shianya Alvarez-Villagomez, Carlos Alfonso Alvarez-Gonzalez   +9 more
doaj   +4 more sources

Acute toxicity and cholinesterase inhibition of the nematicide ethoprophos in larvae of gar Atractosteus tropicus (Semionotiformes: Lepisosteidae)

Revista de Biología Tropical, 2012
Biomarkers are a widely applied approach in environmental studies. Analyses of cholinesterase (ChE), glutathione S-transferase (GST) and lipid peroxidation (LPO) are biomarkers that can provide information regarding early effects of pollutants at ...
Freylan Mena Torres, Sascha Pfennig, María de Jesús Arias Andrés, Gabriel Márquez-Couturie, Adrían Sevilla, C. Maurizio Protti Q   +5 more
doaj   +6 more sources

DISEÑO DE MICRODIETAS PARA EL LARVICULTIVO DE PEJELAGARTO Atractosteus tropicus, Gill 1863

Ecosistemas y Recursos Agropecuarios, 2014
Se evaluaron varios alimentos microparticulados en el crecimiento y supervivencia de larvas de pejelagarto Atractosteus tropicus, donde previamente se estudió el grado de hidrólisis (GH) y la liberación de aminoácidos totales (AALT) de diversos ...
CA Frías-Quintana, CA Álvarez-González, G Márquez-Couturier   +2 more
doaj   +2 more sources

Histología del ciclo reproductor de hembras del pejelagarto Atractosteus tropicus (Lepisosteiformes: Lepisosteidae) enTabasco, México Histology of reproductive cycle of tropical gar Atractosteus tropicus females (Lepisosteiformes: Lepisosteidae) in Tabasco, Mexico.

Revista de Biología Tropical, 2012
En el sureste de México A. tropicus es una especie de gran importancia ecológica, económica, cultural y para acuicultura, sin embargo, sus poblaciones silvestres han disminuido a causa de diversas actividades antropogénicas, por lo que se caracterizó el ...
Otilio Méndez-Marin, Arlette Amalia Hernández Franyutti, Carlos Alfonso Álvarez-González, Wilfrido Miguel Contreras-Sánchez, Mari Carmen Uribe Aranzábal   +4 more
doaj   +1 more source

Dietary live yeast (Debaryomyces hansenii) provides no advantages in tropical gar, Atractosteus tropicus (Actinopterygii: Lepisosteiformes: Lepisosteidae), juvenile aquaculture [PDF]

Acta Ichthyologica et Piscatoria, 2021
Tropical gar, Atractosteus tropicus Gill, 1863, is an ancient freshwater fish that is commercially cultivated in southern Mexico. Currently, there is a specific diet for its culture; however, the addition of probiotics has not been investigated.
Iris Adriana Hernández-López, Dariel Tovar-Ramírez, Susana De la Rosa-García, Carina Shianya Álvarez-Villagómez, Gloria Gertrudys Asencio-Alcudia, Talhia Martínez-Burguete, Mario Alberto Galaviz, Rocío Guerrero-Zárate, Rafael Martínez-García, Emyr Saúl Peña-Marín, Carlos Alfonso Álvarez-González   +10 more
doaj   +3 more sources

Inulin Supplementation in Diets for Tropical Gar (Atractosteus tropicus) Larvae: Effects on Growth, Survival, and Digestive and Antioxidant Enzyme Activities

Aquaculture Journal, 2023
The effect of adding inulin to balanced diets for tropical gar (Atractosteus tropicus) larvae on growth, survival, digestive enzyme activity, and antioxidant activity was evaluated.
Eduardo De La Cruz-Marín, Rafael Martínez-García, Jenny F. López-Hernández, Otilio Méndez-Marín, Susana C. De la Rosa-García, Emyr S. Peña-Marín, Dariel Tovar-Ramírez, Cesar A. Sepúlveda-Quiroz, Graciela M. Pérez-Jiménez, Luis D. Jiménez-Martínez, Gloria G. Asencio-Alcudia, Carlos A. Álvarez-González   +11 more
doaj   +1 more source

Atractosteus tropicus Gill 1863

, 2023
Atractosteus tropicus Gill 1863 (Fig. 6E). Tropical Gar; Gaspar, Pejelagarto, Gaspar Tropical Vouchers: UCR 0542-009 (2), 1049-001 (3), 1064-001 (1), 1084-001 (1) and 1085-001 (1); FMNH 5900 (1), 5901 (6), 5902 (1) and 83719 (1); other collections: UMMZ 204003 (1) and 204004 (1). Distribution: North and Central America; from southern Mexico to northern
Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D., Matamoros, Wilfredo A.   +7 more
openaire   +2 more sources