Results 81 to 90 of about 7,231 (200)

The contrasting role of heterochromatin in the differentiation of sex chromosomes: an overview from Neotropical fishes

, 2012
During the evolutionary process of the sex chromosomes, a general principle that arises is that cessation or a partial restriction of recombination between the sex chromosome pair is necessary.
Toledo, Lurdes Foresti de Almeida, Bertollo, L. A. C., Cioffi, M. B., Moreira-Filho, O.   +3 more
core   +1 more source

FWS Employee Bands Neotropical Migratory Bird

, 2018
A U.S. Fish and Wildlife Service biologist bands a neotropical migratory bird at Tensas River National Wildlife Refuge in Louisiana. Some species of neotropical migrants, so named because they nest in North America and winter in the tropical regions of ...
Hollingsworth, John and Karen, USFWS
core  

Nuclear DNA content of thirty species of Neotropical fishes

Genetics and Molecular Biology, 1998
The present paper reports nuclear DNA content in 30 Neotropical freshwater fish species and summarizes the data on other Neotropical species presented in the literature. Among Neotropical fishes, the nuclear DNA content ranges from 1.04 ± 0.09 pg/nucleus in Corydoras cf. simulatus (2n = 62) to 248.0 pg/nucleus in Lepidosiren paradoxa (2n = 38).
Carvalho, Margarida Lima, Oliveira, Claudio, Foresti, Fausto   +2 more
openaire   +6 more sources

Unravelling the diversity of Posthodiplostomum Dubois, 1936 (Trematoda: Diplostomidae) in fish-eating birds from the Neotropical region of Mexico, with the description of a new species

Parasitology
Adults of the genus Posthodiplostomum, Dubois, 1936 are parasites of fish-eating birds, mainly of the family Ardeidae, and are globally distributed. The genus currently comprises 35 species, although recent molecular evidence has shown that the diversity
Marcelo Tonatiuh González-García, Alejandra López-Jiménez, Mirza Patricia Ortega-Olivares, Ana Lucia Sereno-Uribe, Gerardo Pérez-Ponce de León, Martín García-Varela   +5 more
doaj   +1 more source

Bioconcentration of carbamazepine, enalapril, and sildenafil in neotropical fish species. [PDF]

Front Toxicol, 2023
Rojo MG, Cristos D, Carriquiriborde P.
europepmc   +1 more source

Changes in fish assemblages caused by different Neotropical biomes.

Latin American Journal of Aquatic Research, 2018
ABSTRACT We studied the leading causes of the spatial distribution pattern of fish species assemblage in the transition region between Cerrado-Caatinga biomes, in the São Francisco River (Brazil). Biotic and abiotic variables were collected at 17 sampling sites located in three sub-basins, in two periods during 2015.
Rodrigues, Leydiane, Carmassi, Alberto, Perbiche-Neves, Gilmar, Sarmento-Soares, Luisa María   +3 more
openaire   +2 more sources

First report on the toxicity of SARS-CoV-2, alone and in combination with polyethylene microplastics in neotropical fish. [PDF]

Sci Total Environ, 2023
Ferreira RO, Guimarães ATB, Luz TMD, Rodrigues ASL, Islam ARMT, Rahman MM, Ragavendran C, Kamaraj C, Charlie-Silva I, Durigon EL, Braz HLB, Arias AH, Santiago OC, Barceló D, Malafaia G.   +14 more
europepmc   +1 more source

Feeding ecology of Leporinus taeniofasciatus (Characiformes: Anostomidae) before and after installation of a hydroelectric plant in the upper rio Tocantins, Brazil

Neotropical Ichthyology
The feeding ecology of Leporinus taeniofasciatus in the upper rio Tocantins was characterized before (river phase) and after (reservoir phase) its impoundment by the Serra da Mesa Hydroelectric Dam.
Miriam P. Albrecht, Erica Pellegrini-Caramaschi   +1 more
doaj   +1 more source

Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna

, 2020
: We introduce the work providing a synthetic description of the diversity and phyletic structure of freshwater fish in the Neotropical Region, especially emphasizing that of Brazil.
Carla N. M. Polaz (8142267), Ricardo M. C. Castro (8142264)   +1 more
core   +1 more source

Digestive Physiology, Nutrition and Feeding of Arapaima gigas: A Review

Fishes
The Arapaima gigas, a native fish species in the Amazon basin, presents particular biological and zootechnical characteristics, along with substantial economic value, that make it a promising candidate for its production within intensive aquaculture ...
Alfredo Ruben Palomino Ramos, Francisco Javier Moyano López   +1 more
doaj   +1 more source