Results 21 to 30 of about 3,790 (211)

Autonomous detection of neotropical sciaenid fishes [PDF]

open access: yesProceedings of Meetings on Acoustics, 2012
Sciaenid passive acoustics are a demonstrated valuable tool for fisheries management. In spite of this, an efficient software tool to detect and identify fish sounds is not currently available. Such tool would be useful for autonomous recognition and array methodologies.
Sebastian Ruiz-Blais   +2 more
openaire   +1 more source

Cross species amplification and characterization of microsatellite markers in Leporinus friderici (Characiformes, Anostomidae) [PDF]

open access: yesCiência Rural, 2020
: Leporinus friderici is a migratory neotropical fish with elevated ecological and economic importance in Brazil. Microsatellite markers are highly important in population genetic studies, management, and conservation programs; however, no markers are ...
Caio Felipe da Silva   +5 more
doaj   +1 more source

Análise histológica das brí­¢nquias e do fí­­gado de Bryconops caudomaculatus em diferentes concentrações de amônia

open access: yesBoletim do Instituto de Pesca, 2017
O objetivo foi avaliar os efeitos de diferentes concentrações de amônia não ionizada (zero; 0,15; 0,30; 0,50; 1,00 mg L-1 NH3) na histologia e morfologia das brí­¢nquias e fí­­gado de juvenis de Bryconops caudomaculatus.
Mayara da Cruz RIBEIRO   +2 more
doaj   +1 more source

Crude glycerin in feed for Colossoma macropomum fish: evaluation of histopathological effects on the liver and kidney

open access: yesBoletim do Instituto de Pesca, 2023
The present study aimed to verify whether the use of crude glycerin in the diet of juvenile C. macropomum could promote histopathological changes in the liver and kidneys.
Eduardo Libanio Reis Santos   +1 more
doaj  

Impacts of small-scale engineering projects on Neotropical freshwater fishes [PDF]

open access: yesNeotropical Ichthyology
Neotropical freshwater ecosystems harbor some of the world’s most diverse fish communities, playing a fundamental role in ecosystem functionality and providing essential and free services to human societies.
Franco Teixeira de Mello   +8 more
doaj   +1 more source

The Digestive Function of Pseudoplatystoma punctifer Early Juveniles Is Differentially Modulated by Dietary Protein, Lipid and Carbohydrate Content and Their Ratios

open access: yesAnimals, 2021
Pseudoplatystoma punctifer is an Amazonian catfish highly appreciated for its high flesh quality, size, and commercial value. Its aquaculture is pursued to satisfy the demands of an increasing population in the region.
Diana Castro-Ruiz   +7 more
doaj   +1 more source

How does fragmentation by small dams affect stream ichthyofauna in the upper Paraná River basin? [PDF]

open access: yesNeotropical Ichthyology
Since the seminal publication of the River Continuum Concept (RCC), many studies have shown the importance of habitat and longitudinal changes on fish distribution, including for the Neotropical region.
Gilberto Nepomuceno Salvador   +8 more
doaj   +1 more source

ZOOPLANCTON EN LA LARVICULTURA DE PECES NEOTROPICALES [PDF]

open access: yesRevista Mvz Cordoba, 2008
Because of the poor development of digestive system and swimming capability of young fish, larviculture of altricial neotropical fish presents for the management of the initial feeding.
Martha Prieto G, Victor Atencio G
doaj  

Swimming performance of the small characin Bryconamericus stramineus (Characiformes: Characidae)

open access: yesZoologia (Curitiba), 2010
Very little research has been conducted on the swimming capacity of Neotropical fish. The few studies available have focused on large migratory species.
Miriam A. de Castro   +3 more
doaj   +1 more source

Optimal swim speeds by respirometer: an analysis of three neotropical species

open access: yesNeotropical Ichthyology
The swimming ability of neotropical fish species is an important aspect for fish ladder designs. Especially in Latin America, where fish ladders are highly selective, fish strategies to negotiate the passage should be studied focusing on target species ...
Hersília de Andrade e Santos   +3 more
doaj   +1 more source

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