Buscar
Mostrando ítems 181-190 de 493
Growth performance of Nile tilapia reared in cages in a farm dam submitted to a feed reduction strategy in a periphyton-based system
(2022-02-01)
The periphyton-based system is a low-cost and sustainable strategy for small-scale producers who have limited technology and budgets. This study aimed to evaluate the effects of different feed restriction levels (50% and ...
Mutilating predation in the Cheirodontinae Odontostilbe pequira (Characiformes: Characidae)
(2012-08-06)
We observed individuals of Odontostilbe pequira, a small characid, approaching and biting individuals of larger-bodied fishes of other species. This observation was made in two clear water headwater streams of the Cuiabá ...
Aspects of reproductive biology of curimba Prochilodus lacustris (Pisces, Prochilodontidae) in a tropical lake in Northeastern Brazil
(2019-04-01)
This study evaluated the annual cycle of biological reproductive aspects of Prochilodus lacustris, a neotropical fish species, in Baixada Maranhense Protection Area in northeastern Brazil. Fish were collected monthly between ...
Impactos del Huracán Ike sobre los peces arrecifales en el área turística Santa Lucía, Camagüey, Cuba
(2009)
El Huracán Ike azotó la provincia de Camagüey, Cuba, el 8 de septiembre de 2008 con categoría II de la escala Saffir – Simpson, y el área de Santa Lucía fue una de las áreas más afectadas. Con el objetivo de evaluar los ...
Periphyton-based cage culture of Nile tilapia: An interesting model for small-scale farming
(2017-10-01)
We evaluated the production costs and the profitability of using bamboo substrates to enhance periphyton production in cages, in combination with a restricted diet and reduced stocking densities. Nile tilapia (46.56 ± 2.53 ...
Distribution of butyltin compounds in Brazil's southern and southeastern estuarine ecosystems: assessment of spatial scale and compartments
(Springer, 2016-08-01)
Butyltin compounds (BTs), including tributyltin (TBT) and its degradation products, dibutyltin and monobutyltin, have been found in a diversity of aquatic systems and causing toxic effects in target and nontarget organisms. ...
A new species of scaly blenny of the genus Labrisomus (Actinopterygii: Labrisomidae) from the tropical West Atlantic
(Magnolia PressAucklandNova Zelândia, 2009)
Growth performance, amino acid retention and mRNA levels of mTORC1 signaling pathway genes in Nile tilapia fingerlings fed protein-bound and crystalline amino acids
(2021-10-15)
Recent research has provided new mechanistic insights that amino acids (AA) coordinate protein synthesis by expressing the evolutionarily conserved target of rapamycin complex 1 (mTORC1) signaling pathway genes. An 8-week ...
Dispersion of the invasive common carp Cyprinus carpio in southern South America: changes and expectations, westward and southward
(Blackwell Publishing Ltd, 2016-07)
Common carp Cyprinus carpio possess multiple traits that contribute to their success as an invasive species. They have been introduced across the globe, and abundant populations can have numerous negative effects. Although ...
Host-parasite relationship during Epistylis sp (Ciliophora: Epistylididae) infestation in farmed cichlid and pimelodid fish
(Empresa Brasil Pesq Agropec, 2016-05-01)
The objective of this work was to describe the host-Epistylis sp. relationship during infestation on farmed fish. Five Nile tilapia (Oreochromis niloticus) and ten hybrid surubim catfish (Pseudoplatystoma reticulatum x P ...