Results 81 to 90 of about 4,832 (194)

Unravelling the life history of Amazonian fishes through otolith microchemistry [PDF]

Royal Society Open Science, 2016
Amazonian fishes employ diverse migratory strategies, but the details of these behaviours remain poorly studied despite numerous environmental threats and heavy commercial exploitation of many species.
Theodore W. Hermann, Donald J. Stewart, Karin E. Limburg, Leandro Castello   +3 more
doaj   +1 more source

VALORES HEMATOLÓGICOS DEL PAICHE Arapaima gigas DE LA AMAZONÍA PERUANA

Revista de Investigaciones Veterinarias del Perú, 2013
Se determinaron los valores hematologicos de paiche, Arapaima gigas, en 120 muestras de sangre colectadas entre mayo de 2009 y enero de 2011. Los peces procedian de dos centros de cultivo piscicola de la provincia de Maynas, Loreto, Peru. Las muestras fueron clasificadas de acuerdo al grupo etario: 10-30, 31-180, 181-365 y >365 dias.
Serrano M., Enrique, Leguía P., Guillermo, Quispe H., Marco, Casas V., Gina   +3 more
openaire   +3 more sources

Evidence of polygamy in the socially monogamous Amazonian fish Arapaima gigas (Schinz, 1822) (Osteoglossiformes, Arapaimidae)

Neotropical Ichthyology
Arapaima gigas is one of the largest freshwater fishes of the world. It is socially monogamous, forming pairs, constructing a nest and providing parental care.
Izeni Pires Farias, Adam Leão, Yane Santos Almeida, Júlia Tovar Verba, Marcelo Crossa M., Alexandre Honczaryk, Tomas Hrbek   +6 more
doaj   +1 more source

Desenvolvimento de tecnologias para a melhoria do sistema de criação em cativeiro do pirarucu, Arapaima gigas. [PDF]

, 2017
bitstream/item/86403/1/Digitalizar0144 ...
FARIAS, M. T., TEIXEIRA, R. N. G.
core   +1 more source

Primeira ocorrência de Polyacanthorhynchus macrorhynchus (Acanthocephala: Polyacanthorhynchidae) em pirarucu Arapaima gigas cultivado no Brasil. [PDF]

, 2011
Resumo ...
DIAS, M. T., MARINHO, R. das G. B., NEVES, L. R., REIS, M. K. D., TAKEMOTO, R. M., YOSHIOKA, E. T. O.   +5 more
core  

Impactos ecológicos do manejo comunitário de recursos naturais em comunidades ribeirinhas de várzea e terra firme na região de Tefé, AM [PDF]

, 2008
The theoretical bases of conservationism and preservation are discussed in this research, based on a field study carried out in the region of Tefé, the Middle Solimões.
MCGRATH, David Gibbs, NEPSTAD, Daniel Curtis, OLIVEIRA, Ana Cristina Mendes de, SILVA, Alexandre Fernandes da   +3 more
core   +2 more sources

Replacement of Fish Meal With Poultry Viscera Meal in Diets for Juvenile Arapaima gigas: Growth Performance, Hematological Parameters, Fillet Composition, and Gut and Liver Histology

Aquaculture Research, Volume 2026, Issue 1, 2026.
This study aimed to evaluate the effects of replacing fish meal with poultry viscera meal (PVM) in diets for juvenile Arapaima gigas, assessing growth performance, hematological parameters, fillet composition, and gut and liver histology. Five isonitrogenous (450.20 g kg−1 crude protein [PRO]) and isocaloric (20.02 MJ kg−1 gross energy) diets were ...
Elida Saucedo-Alanya, Medardo Díaz-Céspedes, Nidia Llapapasca, Carlos Mariano Alvez-Valles, Gonzalo Orihuela, Nieves Sandoval, Fred W. Chu-Koo, Ligia Uribe Gonçalves, Carlos Andre Amaringo Cortegano   +8 more
wiley   +1 more source

Natural history and conservation of pirarucu, Àrapaima gigas', at the Amazonian Várzea : red giants in muddy waters [PDF]

, 2012
The pirarucu, Arapaima gigas (Osteoglossidae, Teleostei), an important natural resource in the Amazonian flooded forest, has been exploited for centuries and is now threatened by overfishing.
Queiroz, Helder Lima de
core  

Future large hydropower dams impact global freshwater megafauna [PDF]

, 2019
Dam construction comes with severe social, economic and ecological impacts. From an ecological point of view, habitat types are altered and biodiversity is lost.
Berlekamp, Juergen, Darwall, William, He, Fengzhi, Jaehnig, Sonja C., Tockner, Klement, Zarfl, Christiane   +5 more
core   +1 more source

Co‐Supplementation of Vitamins C and E Ameliorates Growth, Blood Biochemistry, Histomorphometry and Mucosal Health in Nile Tilapia, Oreochromis niloticus Under High Stocking Density

Aquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.
ABSTRACT Supplementing diets with vitamins C and E has been reported to reduce the negative effects of stress associated with higher stocking density. This study investigated the combined effects of dietary vitamins C and E on the growth, nutritional composition, haematobiochemical response and mucosal health of Nile tilapia, Oreochromis niloticus ...
Sudipta K. Nag, S. M. Majharul Islam, Bethi Das, Md. Fazle Rohani, Md. Rajib Sharker, Al Azim, Ioannis N. Vatsos, Muhammad A. B. Siddik   +7 more
wiley   +1 more source