Results 31 to 40 of about 1,000 (148)

[Histology of reproductive cycle of tropical gar Atractosteus tropicus females (Lepisosteiformes: Lepisosteidae) in Tabasco, Mexico].

open access: yesRevista de biologia tropical, 2013
In Southeast Mexico, A. tropicus is a species with great ecological, economic, cultural and aquaculture value, however wild populations have diminished due to diverse anthropological causes. The objective of this study was to characterize the reproductive cycle of A.
Otilio, Méndez-Marin   +4 more
openaire   +3 more sources

Evaluation of Mannan oligosaccharides (MOS) in balanced diets for tropical gar juveniles (Atractosteus tropicus) [PDF]

open access: yesHidrobiológica, 2018
Antecedentes: Los prebióticos son polisacáridos no digestibles por el huésped, pero, por otro lado, son los encargados de estimular la actividad de microorganismos benéficos en el sistema digestivo, lo que puede maximizar la ganancia en peso, la ...
Álvarez-González, Carlos A.   +7 more
core   +5 more sources

The larval attachment organ of the bowfin Amia ocellicauda Richardson, 1836 (Amiiformes: Amiidae) and its phylogenetic significance

open access: yesJournal of Fish Biology, Volume 103, Issue 6, Page 1300-1311, December 2023., 2023
Abstract Larval attachment organs (LAOs) are unicellular or multicellular organs that enable the larvae of many actinopterygian fishes to adhere to a substrate before yolk‐sac absorption and the free‐swimming stage. Bowfins (Amiiformes) exhibit a sizable LAO on the snout, which was first described in the late 19th and early 20th centuries.
Amanda K. Pinion   +4 more
wiley   +1 more source

Incorporation of Fructooligosaccharides in Diets Influence Growth Performance, Digestive Enzyme Activity, and Expression of Intestinal Barrier Function Genes in Tropical Gar (Atractosteus tropicus) Larvae

open access: yesFishes, 2022
This study was conducted to investigate the effects of dietary fructooligosaccharides (FOS) on the growth, survival rate, digestive enzyms activity, and the expression of intestinal barrier function genes in tropical gar (Atractosteus tropicus) larvae. A
Graciela M. Pérez-Jiménez   +12 more
doaj   +1 more source

Developmental cardiorespiratory physiology of the air-breathing tropical gar,Atractosteus tropicus [PDF]

open access: yesAmerican Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 2016
The physiological transition to aerial breathing in larval air-breathing fishes is poorly understood. We investigated gill ventilation frequency ( fG), heart rate ( fH), and air breathing frequency ( fAB) as a function of development, activity, hypoxia, and temperature in embryos/larvae from day (D) 2.5 to D30 posthatch of the tropical gar ...
Warren W, Burggren   +6 more
openaire   +2 more sources

Larval Development in Tropical Gar (Atractosteus tropicus) Is Dependent on the Embryonic Thermal Regime: Ecological Implications under a Climate Change Context

open access: yesFishes, 2022
In ectotherm species, environmental temperature plays a key role in development, growth, and survival. Thus, determining how temperature affects fish populations is of utmost importance to accurately predict the risk of climate change over fisheries and ...
Simrith E. Cordova-de la Cruz   +7 more
doaj   +1 more source

Evaluación de alimentos microencapsulados en el cultivo de larvas de pejelagarto (Atractosteus tropicus) [PDF]

open access: yes, 2018
Four microencapsulated diets were evaluated with respect to the growth and survival of tropical gar Atractosteus tropicus larvae. The treatments consisted of four experimental diets and one control diet 1) fish meal, 2) a combination of pork and poultry ...
Aguilar-Tellez, Federico Vladymir   +26 more
core   +1 more source

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

open access: yesFishes, 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   +5 more
doaj   +1 more source

Gut Microbiome Analysis In Adult Tropical Gars ( Atractosteus tropicus ) [PDF]

open access: yes, 2019
Abstract Tropical gar ( Atractosteus tropicus ), is freshwater and estuarine fish that has inhabited the Earth since the Mesozoic era, undergoing limited physiological variation ever since. This omnivorous fish is endemic to southern Mexico and part of Central America.
Méndez-Pérez, Roberto   +12 more
openaire   +1 more source

Effects of dietary Sodium Propionate on growth, digestive en-zyme activity and expression of immune system genes in juve-niles of Tropical gar (Atractosteus tropicus)

open access: yes, 2023
Gene expression for intestine and liver of tropical gar (Atractosteus tropicus)THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE.
martinez garcia, R (via Mendeley Data)
core   +1 more source

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