Results 61 to 70 of about 154 (127)

Sondeo ecológico rápido de las comunidades de peces tropicales en un área de explotación minera en Costa Rica

Revista de Biología Tropical, 2008
El impacto de las minerías de oro ha generado una gran preocupación por el deterioro de los hábitats acuáticos y la fragmentación de los sistemas naturales. Las perturbaciones antropogénicas sobre la estructura y heterogeneidad del sistema pueden influir
Mario Espinoza Mendiola
doaj  

Permanent germinal epithelium and reproductive cycle of Atractosteus tropicus (Lepisosteiformes: Lepisosteidae) males, Tabasco, Mexico.

Revista de biologia tropical, 2016
A. tropicus tiene un papel ecológico importante, como regulador de otras poblaciones de peces, en los cuerpos de agua de México, pero sus poblaciones silvestres se reducen. Una alternativa de conservación es el cultivo, el cual requiere caracterizar el ciclo reproductivo por medio del estudio de estructuras germinales y somáticas de los testículos ...
Otilio Méndez-Marin, Arlette Amalia Hernández Franyutti, Carlos Alfonso Álvarez-González, Mari Carmen Uribe, Wilfrido Miguel Contreras-Sánchez   +4 more
openaire   +4 more sources

[Karyotype of the tropical gar Atractosteus tropicus (Lepisosteiformes: Lepisosteidae) and chromosomal variation in their larval and adults].

Revista de biologia tropical, 2010
The karyotype of the tropical gar Atractosteus tropicus is described from conventional Giemsa-staining of 295 mitotic chromosome slides from 120 larvae and 15 adults (five females and ten males) from Tabasco, southern of Mexico. The diploid number 2n = 56 chromosomes was calculated (73 spreads from 206 larval and 208 adult metaphases).
Lenin, Arias-Rodríguez, Salomón, Páramo-Delgadillo, Wilfrido M, Contreras-Sánchez, Carlos A, Alvarez-González   +3 more
openaire   +1 more source

Evaluation of protein and lipid ingredients through in vitro digestibility for tropical gar (Atractosteus tropicus) juveniles

Latin American Journal of Aquatic Research
Tropical gar (Atractosteus tropicus) is an ecologically, culturally, economically, and scientifically important species. Therefore, it is essential to know the available resources to design feeds for the culture of this species. This study evaluated the in vitro digestibility of meals and oils commonly used in aquaculture, using crude extract of the ...
Rocío Guerrero-Zárate, Miguel Ángel Olvera-Novoa, Ronald Jesus-Contreras, Carlos Alfonso Frías-Quintana, Rafael Martínez-García, Carlos Alfonso Álvarez-González   +5 more
openaire   +2 more sources

Molecular characterization and expression analysis of the IFN-gamma and NOD1 gene in tropical gar Atractosteus tropicus

Latin American Journal of Aquatic Research
The tropical gar (Atractosteus tropicus), a freshwater species mostly found in swamps, has been used for human consumption for several generations. In this study, the expression of interferon-gamma (ifn-γ) and domain nucleotide-binding oligomerization (nod1) involved in the immune system was evaluated in different tissues such as the brain, heart ...
Vicente Morales-García, Carlos Alfonso Álvarez-González, Gloria Asencio-Alcudia, Alejandra del Carmen Castillo-Collado, Carina Shianya Alvarez-Villagomez, Candelario Rodríguez-Pérez, Rafael Martínez-García, César Sepúlveda-Quiroz, Graciela Pérez Jiménez, Luis Daniel Jimenez Martinez, Bartolo Concha-Frias   +10 more
openaire   +1 more source

Ontogeny of the digestive enzyme activity of the pikeperch (Sander lucioperca) under culture condition. [PDF]

Sci Rep, 2023
Lavajoo F, Falahatkar B, García-Meilán I, Perelló-Amorós M, Efatpanah I, Gutierrez J.   +5 more
europepmc   +1 more source

Histomorphological Changes in Fish Gut in Response to Prebiotics and Probiotics Treatment to Improve Their Health Status: A Review. [PDF]

Animals (Basel), 2023
De Marco G, Cappello T, Maisano M.
europepmc   +1 more source

Insights into the control and consequences of breathing adjustments in fishes-from larvae to adults. [PDF]

Front Physiol, 2023
Perry SF, Pan YK, Gilmour KM.
europepmc   +1 more source

Sexual Dimorphism of the Gut Microbiota in the Chinese Alligator and Its Convergence in the Wild Environment. [PDF]

Int J Mol Sci, 2022
Hu MY, Yu QZ, Lin JQ, Fang SG.
europepmc   +1 more source

Embryonic and Larval Development of Stinging Catfish, Heteropneustes fossilis, in Relation to Climatic and Water Quality Parameters. [PDF]

Life (Basel), 2023
Mahalder B, Haque MM, Siddique MAB, Hasan NA, Alam MM, Talukdar MMN, Shohan MH, Ahasan N, Hasan MM, Ahammad AKS.   +9 more
europepmc   +1 more source