Results 41 to 50 of about 1,724 (98)

Saline water for juvenile giant trahira during feed training

open access: yesRevista Brasileira de Zootecnia, 2012
The objective of this study was to investigate the effect of different water salinities on juvenile Hoplias lacerdae during feed training. Salinity levels of 0, 3, 6 and 9 g salt L-1 were used.
Ana Lúcia Salaro   +5 more
doaj   +1 more source

Organização trófica da assembleia de peixes de uma lagoa costeira subtropical, Santa Catarina, Brasil [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-graduação em Ecologia, Florianópolis, 2013O presente estudo teve como objetivo investigar a organização trófica da assembleia de peixes da ...
Sticca, Sarah Carvalho
core  

High prevalence and intensity of fish nematodes with zoonotic potential in the Brazilian Amazon, including a brief reflection on the absence of human infections [PDF]

open access: yes, 2021
This study aimed to characterize the prevalence, mean abundance, and mean intensity of potential fish-borne zoonotic nematode larvae infecting the predator fish Hoplias aff.
Aparecido Adriano, Edson   +4 more
core   +1 more source

Structure dynamics of a fish community over ten years of formation in the reservoir of the hydroelectric power plant in upper Uruguay River

open access: yesBrazilian Journal of Biology, 2017
The objective of this study was to evaluate the structure of the fish assemblage in the ten years following the closing of the lake of the Itá Hydroelectric Power Plant. Seasonal collections were conducted from 2001 to 2010.
G. Schork, E. Zaniboni-Filho
doaj   +1 more source

Multiple rearrangements in cryptic species of electric knifefish, Gymnotus carapo (Gymnotidae, Gymnotiformes) revealed by chromosome painting. [PDF]

open access: yes, 2010
BACKGROUND: Gymnotus (Gymnotidae, Gymnotiformes) is the Neotropical electric fish genus with the largest geographic distribution and the largest number of species, 33 of which have been validated.
de Souza, Augusto CP   +5 more
core   +2 more sources

Anatomy of the bucco-pharyngeal cavity of Salminus brasiliensis (Cuvier, 1817) (Pisces, Characidae, Salmininae) [PDF]

open access: yesBiotemas, 2006
The bucco-pharyngeal cavity of Salminus brasiliensis, an ichthyophagous species of fresh water, is anatomically adapted to predation. The wide buccal rift, the oral-aboral enlargement of the buccal cavity and the reduced thickness of the pharyngeal ...
Eliane Menin, Sirlene Souza Rodrigues
doaj  

Replacement of moist ingredients in the feed training of carnivorous fish

open access: yesRevista Brasileira de Zootecnia, 2012
The study evaluated the replacement of bovine heart by gelatin in the feed training of carnivorous fish, using giant trahira (Hoplias lacerdae) as an experimental model.
Ana Lúcia Salaro   +7 more
doaj   +1 more source

Anatomia do tubo digestivo de Salminus brasiliensis (Cuvier, 1817) (Pisces, Characidae, Salmininae)

open access: yesBiotemas, 2008
O tubo digestivo de Salminus brasiliensis (dourado) mostra adaptações anatômicas ao hábito alimentar carnívoro, ictiófago: esôfago e estômago, em especial a região cecal, apresentam-se consideravelmente distensíveis e o intestino relativamente curto.
Sirlene Souza Rodrigues, Eliane Menin
doaj   +1 more source

Effect of different oxygen levels on growth performance, stress response and oxygen consumption in two weight groups of great sturgeon Huso huso [PDF]

open access: yes, 2013
In the present study, different oxygen levels were examined in two weight groups of great sturgeon Huso huso including small size (with initial weight 280.9 ± 49.2 g) and large size (with initial weight 1217.9 ± 138.1 g). The fish were kept in hypoxia (2-
Bagherzadeh Lakani, F.   +2 more
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