Results 21 to 30 of about 117 (77)

Desenvolvimento morfológico das larvas de Hoplias lacerdae Miranda Ribeiro, 1908 (Characiformes, Erythrinidae), da eclosão até a metamorfose, relacionado com a capacidade de capturar alimento exógeno

open access: yesBiotemas, 2009
Para a realização deste trabalho foram utilizados 510 exemplares de Hoplias lacerdae, com um a 30 dias após a eclosão, com o objetivo de estudar as características morfológicas, mesoscópicas, que capacitam essa espécie, nas fases iniciais do seu ...
Cláudia Maria Reis Raposo Maciel   +4 more
doaj   +4 more sources

Larval morphology of Hoplias lacerdae Miranda Ribeiro, 1908 (Characiformes, Erythrinidae), from hatching to metamorphosis, related to exogenous food capture ability [PDF]

open access: yesBiotemas, 2009
For the accomplishment of this work, 510 specimens of Hoplias lacerdae were used from one to 30 days after hatching, with the objective of studying the mesoscopic morphological characteristics that enable this species, in the initial phases of its ...
Cláudia Maria Reis Raposo Maciel   +4 more
doaj   +1 more source

Hoplias lacerdae Miranda-Ribeiro 1908 [PDF]

open access: yesNeotropical Ichthyology, 2009
Hoplias lacerdae Miranda-Ribeiro, 1908 Fig. 10 Hoplias lacerdae Miranda-Ribeiro, 1908: 3 [original description, type locality: rio Ribeira de Iguape, Iporanga, São Paulo state, Brazil; Holotype: MNRJ 211, dried specimen]. - Eigenmann, 1909: 374 [reference, occurrence in the rio Ribeira de Iguape].
Oyakawa, Osvaldo T.   +1 more
openaire   +7 more sources

Larval ontogeny and morphology of giant trahira Hoplias lacerdae [PDF]

open access: yesJournal of Fish Biology, 2010
In the present study, the morphology and behaviour of giant trahira Hoplias lacerdae larvae were investigated, from hatching to complete absorption of the yolk sac, under laboratory conditions. In the first day post‐hatching (dph), the larvae presented a big ovoid‐shaped yolk sac that underwent regression during larval ontogeny. The mouth opened 3 dph,
M. L. M. Gomes   +4 more
openaire   +1 more source

Non-native freshwater fish from drainages of Rio Grande do Sul State, Brazil [PDF]

open access: yesPapéis Avulsos de Zoologia, 2023
The present study catalogues exotic and allochthonous fish species found in the three main freshwater river drainages of Rio Grande do Sul State using records of scientific collections and literature, and discusses the main impacts caused by their ...
Vinicius de Araújo Bertaco   +1 more
doaj   +1 more source

Growth performance and body composition of giant trahira fingerlings fed diets with different protein and energy levels Crescimento e composição corporal de alevinos de trairão alimentados com diferentes níveis de proteína e energia nas dietas

open access: yesPesquisa Agropecuária Brasileira, 2010
The objective of this work was to determine the proper levels of protein and energy in diets of Hoplias lacerdae fingerlings. The dietary crude protein (CP) and gross energy (GE) levels for fingerlings of giant trahira were evaluated in a completely ...
Galileu Crovatto Veras   +5 more
doaj   +1 more source

Freqüência alimentar na larvicultura do trairão (Hoplias lacerdae) Effects of feeding frequency on larval rearing of trairao (Hoplias lacerdae)

open access: yesRevista Brasileira de Zootecnia, 2005
O experimento foi realizado com o objetivo de se desenvolver estratégias de manejo alimentar durante a larvicultura de trairão. Larvas com oito dias de vida foram contadas individualmente e alojadas na densidade de 30 larvas/L em 20 unidades ...
Ronald Kennedy Luz   +1 more
doaj   +1 more source

Revision of the Neotropical trahiras of the Hoplias lacerdae species-group (Ostariophysi: Characiformes: Erythrinidae) with descriptions of two new species

open access: yesNeotropical Ichthyology
Hoplias lacerdae was originally described from the rio Ribeira de Iguape, Iporanga, São Paulo State. The Hoplias lacerdae group is defined as containing generally large trahiras with the medial margins of dentaries running parallel to each other and ...
Osvaldo T. Oyakawa, George M. T. Mattox
doaj   +1 more source

Evolutionary cytogenetics of the Hoplias lacerdae, Miranda Ribeiro, 1908 group: a particular pathway concerning the other Erythrinidae fish

open access: yesBrazilian Journal of Biology
The taxonomy/systematics of the Erythrinidae fish is still imprecise, with several doubts on their relationships. Karyotypes and chromosomal characteristics of some species of the Hoplias lacerdae group (Erythrinidae), from different Brazilian ...
S. Morelli, MR. Vicari, LAC. Bertollo
doaj   +1 more source

Ureotelism is inducible in the neotropical freshwater Hoplias malabaricus (Teleostei, Erythrinidae)

open access: yesBrazilian Journal of Biology
Increased environmental pH decreases ammonia transport through the gills, impairing nitrogenous waste. The consequent toxicity is usually drastic to most fishes. A few species are able to synthesize urea as a way to detoxify plasma ammonia.
G. Moraes, V. L. P. Polez
doaj   +1 more source

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