Results 81 to 90 of about 2,322 (193)

Fish fauna from Río Pilcomayo National Park and Ramsar Site and its surroundings, Formosa, Argentina [PDF]

, 2014
The first list of fish species from the Río Pilcomayo National Park and Ramsar Site (RPNP), located in the WetChaco plains of Northern Argentina is presented here.
Baigún, Claudio Rafael M., Brancolini, Florencia, Colautti, Dario César, López, Hugo, Minotti, Priscilla Gail, Protogino, Lucila Cristina   +5 more
core   +4 more sources

Population genetic structuring in pacu (Piaractus mesopotamicus) across the Paraná-Paraguay basin: evidence from microsatellites [PDF]

, 2009
The Paraná-Paraguay basin encompasses central western Brazil, northeastern Paraguay, eastern Bolivia and northern Argentina. The Pantanal is a flooded plain with marked dry and rainy seasons that, due to its soil characteristics and low declivity, has a ...
CALCAGNOTTO, Daniela, DESALLE, Rob
core   +1 more source

Observations on non-randomly distribution of spores of Henneguya spp. (Cnidaria, Myxosporea, Myxobolidae) within plasmodia [PDF]

, 2017
Species of the cnidarian genus Henneguya Thelohan, 1892 (Myxosporea: Myxobolidae) are histozoic parasites commonly found in freshwater and, more rarely, in marine fish.
Adriano, Edson A., Cruz, Cristina, Cruz, Manuel, Eiras, Jorge C., Molnár, Kálmán, Saraiva, Aurélia, Székely, Csaba   +6 more
core   +2 more sources

Long‐term interventions by conservation and development projects support successful recovery of tropical peatlands in Amazonia

People and Nature, Volume 7, Issue 4, Page 871-886, April 2025.
Abstract Rural communities in Amazonia rely on harvesting Mauritia flexuosa fruit, a dominant peatland palm, for their subsistence and income. However, these palms are felled to harvest the fruits, which has led to reduced resource availability due to the pressure exerted by the increasing fruit demand.
Eurídice N. Honorio Coronado, Julio Grández Rios, Jhon del Águila Pasquel, Gerardo Flores Llampazo, Cesar J. Córdova Oroche, José Reyna Huaymacari, C. Gabriel Hidalgo Pizango, Luis Freitas Alvarado, Ulises Pipa Murayari, Gonzalo Isla Reátegui, Chris López Álvarez, Eva Loja Aleman, Emiliana Isasi‐Catalá, Joaquín Gutierrez‐Sotelo, Frederick C. Draper, Margarita del Aguila Villacorta, Timothy R. Baker, Dennis del Castillo Torres, Kenton de la Cruz Gamarra, Daniel Escobedo Guerra, Ian T. Lawson, Manuel Martín Brañas, Estela P. Martinez Gonzales, Jacqueline Ramirez Chávez, Katherine H. Roucoux   +24 more
wiley   +1 more source

The phylogenetic position of Anacanthorus (Monogenea, Dactylogyridae) parasitizing Brazilian serrasalmids (Characiformes)

Parasite, 2019
Anacanthorus (Anacanthorinae) is one of the most speciose and common genera of neotropical monogeneans, yet there are still many gaps in our knowledge concerning their diversity and phylogeny.
Moreira Juliana, Luque José L., Šimková Andrea   +2 more
doaj   +1 more source

Investigations on the respiration of the Neotropical fish, Colossoma macropomum (Serrasalmidae). The influence of weight and temperature on the routine oxygen consumption

, 1983
The influence of weight and temperature on the routine oxygen consumption of Colossoma macropomum, a Neotropical fish species of the family Serrasalmidae, was investigated using a constant flow respirometer.
Saint-Paul, U.
core  

Estimated and in vivo measurements of bite force demonstrate exceptionally large bite forces in parrots (Psittaciformes)

Journal of Anatomy, Volume 246, Issue 2, Page 299-315, February 2025.
Bite force in parrots has been explored using data from muscle masses. The values were validated by comparison with data for bite force collected from live parrots. The parrot's reputation for a strong bite force is well founded. Abstract Jaw morphology and function determine the range of dietary items that an organism can consume.
Shannon L. Harrison, Gregory P. Sutton, Anthony Herrel, D. Charles Deeming   +3 more
wiley   +1 more source

The Length–Weight Relationship in Food Fish Species From the Upper Putumayo River Basin, Colombia

Journal of Applied Ichthyology, Volume 2025, Issue 1, 2025.
The length–weight relationship (LWR) in fish is an important tool because it allows understanding aspects such as growth assessment, body condition, and biomass estimation. The aim of this study was to determine the LWR of food fish species from the Amazonian plain of the Putumayo River caught by artisanal fisheries to be sold in the town of Puerto ...
César A. Bonilla-Castillo, Edwin Agudelo Córdoba, Yintao Jia   +2 more
wiley   +1 more source

Tometes camunani (Characiformes: Serrasalmidae), a new species of phytophagous fish from the Guiana Shield, rio Trombetas basin, Brazil

Neotropical Ichthyology
A new species of Serrasalmidae, Tometes camunani, is described from the upper drainages of the rio Trombetas basin, Pará State, Brazil. The new species is distinguished from its congeners by having neurocranium with a slight concavity at the level of the
Marcelo C. Andrade, Tommaso Giarrizzo, Michel Jegu   +2 more
doaj   +1 more source

Genetic variation in plasma transferrins of tambaqui, Colossoma macropomum (CUVIER 1818)

, 1985
Blood specimens of tambaqui, Colossoma macropomum, an Amazonian fish of commercial importance, were examined for transferrin variants by treating blood plasma specimens with rivanol before electrophoretic analyses in starch gel media.
Jamieso, A., Teixeira, A.
core