Results 71 to 80 of about 3,068 (211)

Diet shift of Red Belly Pacu Piaractus brachypomus (Cuvier, 1818) (Characiformes: Serrasalmidae), a Neotropical fish, in the Sepik-Ramu River Basin, Papua New Guinea

Neotropical Ichthyology
Introduction of fish species is a globally widespread practice that causes losses of native species and homogenization of diversity within and across continents. Diet assessments are important tools to depict the ecological function of species introduced
Sandra Bibiana Correa, Ricardo Betancur-R., Bernard de Mérona, Jonathan W. Armbruster   +3 more
doaj   +1 more source

Parasite diversity in Oxydoras niger (Osteichthyes: Doradidae) from the basin of Solimões River, Amazonas state, Brazil, and the relationship between monogenoidean and condition factor. [PDF]

, 2017
This study describes the parasitic fauna of Oxydoras niger from the Coari Lake, tributary of the medium Solimões River, State of Amazonas, Brazil, and the relationship between the number of Monogenoidea and the condition factor.
JERÔNIMO, G. T., MARTINS, M. L., SILVA, A. M. O., TAVARES-DIAS, M.   +3 more
core   +1 more source

Behavior of Rio Sao Francisco Piranhas in Response to Changes in Space and Density

Zoo Biology, Volume 44, Issue 3, Page 271-282, May/June 2025.
ABSTRACT Previous observations of Rio Sao Francisco piranhas (Pygocentrus piraya) at Cleveland Metroparks Zoo revealed frequent aggressive interactions, which were associated with the injury and death of some individuals. Fishes are known to increase aggressive behavior when available space is limited.
Ronald G. Oldfield, Josie E. Thal, Nick J. Zarlinga, Kristen E. Lukas, Jason D. Wark   +4 more
wiley   +1 more source

Sperm motility and velocities of Characiformes fishes in different times post-activation

Semina: Ciências Agrárias, 2015
The objective of the current study was to observe the performance kinetics (motilities and velocities) of the spermatozoa from Prochilodus brevis (curimatã), Colossoma macropomum (tambaqui) and Piaractus brachypomus (pirapitinga) species in different ...
Mônica Aline Parente Melo-Maciel, José Ferreira Nunes, João Paulo Silva Pinheiro, Larissa Teixeira Nunes, Romulo Roberto Ribeiro Pinheiro, Júlia Trugilio Lopes, Carminda Sandra Brito Salmito-Vanderley   +6 more
doaj   +1 more source

Histopatologia da brânquias de Colossoma macropomum e seu híbrido tambatinga parasitados por monogenoideas e protozoários. [PDF]

, 2017
PAT03
BARCELLOS, J. F. M., DIAS, M. T., MILAGRES, T. F.   +2 more
core  

Dietary supplementation with Arthrospira platensis in tambatinga (♀Colossoma macropomum × ♂Piaractus brachypomus)

REVISTA CIÊNCIA AGRONÔMICA, 2019
ABSTRACT The aim of this study was to evaluate different levels of dietary supplementation with dried Arthrospira platensis meal during the breeding season of the tambatinga hybrid, using zootechnical performance, haematological parameters and percent composition of the fillet, and by measuring the parameters of water quality.
Ribeiro, Pedro Florêncio, Leite, Lorena Alves, Quaresma, Fabrízia da Silva, Farias, Wladimir Ronald Lobo, Sampaio, Alexandre Holanda   +4 more
openaire   +4 more sources

Parásitos de alevinos de gamitana (Colossoma macropomum) y paco (Piaractus brachypomus) cultivados en el C.I. Quistococha, Loreto, Perú

Ciencia Amazónica (Iquitos), 2015
En acuicultura, los peces son susceptibles al ataque de virus, bacterias, hongos y ectoparásitos. Estos organismos se tornan en un serio problema cuando los peces se encuentran con bajas defensas naturales, se crían en altas densidades y/o se altera ...
Fernando Alcántara Bocanegra, Lorgio Verdi Olivares, Germán Murrieta Morey, Luciano Rodríguez Chu, Fred Chu Koo, Marina del Águila Pizarro   +5 more
doaj   +1 more source

Perulernaea pirapitingae n.sp. (Copepoda: Lernaeidae) a parasite of the serrasalmid fish, Piaractus brachypomus from the Meta River, Colombia

, 2000
Perulernaea pirapitingae n.sp. a parasitic copepod (Lemaeidae) from the fish Piaractus brachypomus of the Meta River, Colombia, is described. In addition to the postmetamorphic female, observations on the copepodid V, the premetamorphic female and ...
Thatcher, V.
core  

Quantifying Invasiveness Risk of Non‐Native Freshwater Fishes in South Korea Under a Changing Climate

Fisheries Management and Ecology, Volume 32, Issue 1, February 2025.
ABSTRACT Biological invasions pose a serious threat to native biodiversity, and climate change intensifies the risk of non‐native species invasion in human‐altered environments, particularly in freshwater ecosystems. In South Korean freshwaters, the number of non‐native fish species increased significantly since the early 1950s.
Baran Yoğurtçuoğlu, Ali Serhan Tarkan, Lorenzo Vilizzi   +2 more
wiley   +1 more source

Espermiación inducida y crioconservación de semen de Cachama Blanca (Piaractus brachypomus)

Revista Colombiana de Ciencias Pecuarias, 2016
Resumen La Cachama Blanca (Piaractus brachypomus), carácido originario de las cuencas de los ríos Orinoco y Amazonas fue introducida en la cuenca del Magdalena Medio. Especie rústica de rápido crecimiento, carne de gran aceptación y excelentes condiciones para la piscicultura. No se reproduce en cautiverio, siendo necesaria la administración exógena de
Adriana Fresneda, Gustavo Lenis, Eucario Agudelo, Martha Olivera A.   +3 more
openaire   +1 more source