Results 11 to 20 of about 1,284 (181)

The effect of structural enrichment in hatchery tanks on the morphology of two neotropical fish species [PDF]

Neotropical Ichthyology
Reared fish differ from wild fish in several aspects, including morphology, because they are adapted to captive conditions that are totally different from natural conditions. To minimize the influence of the hatchery environment on the morphology of fish,
Sarah de Oliveira Saraiva, Paulo Santos Pompeu   +1 more
doaj   +2 more sources

Microsatellite multiplex systems for Brycon orbignyanus (Characiformes: Bryconidae) [PDF]

Brazilian Journal of Biology, 2018
L.C. Carvalho, J.M. Ribeiro, G.M. Yazbeck   +2 more
doaj   +6 more sources

Morphometric Evaluations and Yields from Commercial Cuts of Black Pacu Colossoma macropomum (Cuvier, 1818) in Different Body Weights. [PDF]

ScientificWorldJournal, 2021
For the Amazon, it is important to encourage the production of native fish, since there are several species of zootechnical interest. For this, it is necessary to know the species since its acquisition, production, processing, and marketing. Therefore, the aim of this study was to analyze the yield, correlations, and profitability of different cuts of ...
Cavali J, Nóbrega BA, Dantas Filho JV, Ferreira E, Porto MO, Pontuschka RB, Fonseca de Freitas RT.   +6 more
europepmc   +2 more sources

Metazoan endoparasites of Brycon orbignyanus (Characidae: Bryconinae) in a neotropical floodplain

Acta Scientiarum: Biological Sciences, 2019
Species richness and composition are central themes in community ecology of helminths because they improve the understanding of factors that determine community structure.
Eliane da Silva Fernandes, Guilherme Pomaro Casali, Ricardo Massato Takemoto   +2 more
doaj   +3 more sources

Cooling protocol for embryos of piracanjuba Brycon orbignyanus (Valenciennes, 1850)

Semina: Ciências Agrárias, 2014
The aim of this study was to evaluate cryoprotectants for cooling embryos of B. orbignyanus. 1400 embryos were selected, in the post-gastrulation and subjected to cooling to -8°C with different combinations of intracellular cryoprotectants (methanol and ...
Darci Carlos Fornari, Danilo Pedro Streit Jr, Laura Botta Tonissi , Jayme Aparecido Povh , Rodolfo Nardez Sirol , Ricardo Pereira Ribeiro   +5 more
doaj   +2 more sources

Benefits of Adding Virginiamycin to Arapaima gigas (Schinz, 1822) Diet Cultivated in the Brazilian Amazon. [PDF]

Scientifica (Cairo), 2020
The aim of this study was to evaluate the physiological, zootechnical, and environmental benefits of the use of growth‐promoting virginiamycin in the pirarucu diet. The research was conducted at the Carlos Eduardo Matiazze Fish Center, Federal University of Rondônia.
Cavali J, Dantas-Filho JV, Nóbrega BA, Andrade LHV, Pontuschka RB, Gasparotto PHG, Francisco DSR, Junior LDC, Porto MO.   +8 more
europepmc   +2 more sources

Conservation status and bio-ecology of Brycon orbignyanus (Characiformes: Bryconidae), an endemic fish species from the Paraná River basin (Brazil) threatened with extinction [PDF]

Neotropical Ichthyology, 2019
Brycon orbignyanus is an endemic species from La Plata basin whose stocks have been presenting significant reductions throughout the Paraná River. Brycon orbignyanus is categorized as an endangered species. This study evaluated aspects of the bio-ecology
Lívia Helena Tonella, Rosa Maria Dias, Oscar Barroso Vitorino Junior, Rosemara Fugi, Angelo Antonio Agostinho   +4 more
doaj   +1 more source

Dynamic Adaptive Environmental Flows (DAE‐Flows) to Reconcile Long‐Term Ecosystem Demands With Hydropower Objectives

Water Resources Research, Volume 59, Issue 7, July 2023., 2023
Abstract This study investigates how environmental flows (e‐flows) can be designed as dynamic operating policies to optimize long‐term economic and ecosystem performance in reservoir systems. The main goal is to provide e‐flow solutions that contribute to better preparedness and flexibility of hydro‐systems to face multiyear stress periods, reducing ...
Ana Paula Dalcin, Guilherme Fernandes Marques, Amaury Tilmant, Marcelo Olivares   +3 more
wiley   +1 more source

Growth, red blood cells, and gill alterations of red pacu (Piaractus brachypomus) fingerlings by chronic exposure to different total suspended solids in biofloc

Journal of the World Aquaculture Society, Volume 53, Issue 3, Page 652-668, June 2022., 2022
Abstract Chronic exposure to high biofloc total suspended solids (TSS) could affect growth, red blood cells, and generate gill alterations in fish. Red pacu, Piaractus brachypomus, fry (2.7 ± 0.5 g weight) were exposed to different biofloc TSS concentrations with low (T1: 200–300), and medium (T2: 400–600 mg/L) levels and compared to a treatment ...
Beatriz Elena Angeles‐Escobar, Suzianny Maria Bezerra Cabral da Silva, William Severi   +2 more
wiley   +1 more source

Modalidades quimiossensoriais das larvas de Brycon orbignyanus / Chemosensory modalities of Brycon orbignyanus larvae

Brazilian Journal of Animal and Environmental Research, 2021
Com o objetivo de descrever o desenvolvimento das estruturas sensoriais quimiorreceptoras, corpúsculos gustativos e epitélio olfativo, das larvas de piracanjuba, Brycon orbignyanus, entre zero e 172 horas após eclosão, exemplares foram coletados a cada meia hora e fixados em fluído de bouin, por6 a 8 horas, e transferidos para solução de álcool 70%. As
Cláudia Maria Reis Raposo Maciel, Alaor Maciel Júnior, Eduardo Arruda Teixeira Lanna, Lidiane da Silva Nascimento   +3 more
openaire   +2 more sources