Results 41 to 50 of about 10,475 (247)

New host records and description of the egg of Anacanthorus penilabiatus (Monogenea, Dactylogyridae)

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Anacanthorus penilabiatus is referred parasitizing the type-host Piaractus mesopotamicus (Serrasalmidae) and two new hosts, Colossoma macropomum and C.
MC Pamplona-Basilio, A Kohn, VA Feitosa
doaj   +1 more source

Sistema automatizado de monitoreo de parámetros físico-químicos en producción de alevines Gamitana (Colossoma macropomum)

open access: yesRevista Agrotecnológica Amazónica, 2022
La acuicultura es fuente de producción de alimentos con alto valor nutricional, además de ser una actividad económica generadora de empleo e ingresos; en Perú es una alternativa importante para el desarrollo económico y social, sin embargo, es poco ...
Juan García-Castro   +1 more
doaj   +1 more source

Growing in the Dark Warmth: The Case of Amazonian Fish Colossoma macropomum [PDF]

open access: yesFrontiers in Marine Science, 2018
Photoperiod is considered an important synchronizer of biological activities and endocrine pathways, including growth. As ectotherms, fish have many physiological functions controlled by the photoperiod. However, the combined effects of photoperiod and temperature should be clarified, particularly for tropical fish living near their upper thermal limit,
Renan D. Amanajás   +5 more
openaire   +4 more sources

Estimation of genetic parameters for weight and length gains in tambaqui (Colossoma macropomum)

open access: yesBrazilian Journal of Biology, 2023
Abstract The goal of this study was to determine the genetic parameters for growth traits in tambaqui (Colossoma macropomum) fish of similar age and weight. The data set included monthly measurements of body weight and length from120 fish for a year (1,440 measurements). The study found that weight gain had a heritability estimate of 0.01, while length
G. F. Silva   +3 more
openaire   +3 more sources

Variáveis hematológicas em tambaquis anestesiados com óleo de cravo e benzocaína. [PDF]

open access: yes, 2017
O objetivo deste trabalho foi avaliar o efeito anestésico de óleo de cravo e benzocaína sobre os parâmetros hematológicas e a fragilidade osmótica dos eritrócitos em tambaqui (Colossoma macropomum)
CHAGAS, E. C.   +5 more
core   +1 more source

Produtividade de tambaqui criado em tanque-rede com diferentes taxas de alimentação Tambaqui productivity reared in cages with different feeding rations

open access: yesCiência Rural, 2007
O objetivo deste trabalho foi avaliar o efeito da taxa de alimentação sobre a produtividade e os níveis de glicose sangüínea, proteínas totais e triglicérides plasmáticos de juvenis de tambaqui (Colossoma macropomum) criados em tanque-rede.
Edsandra Campos Chagas   +3 more
doaj   +1 more source

Cross-amplification of heterologous microsatellite markers in Piracanjuba

open access: yesCiência Rural, 2017
: Brycon orbignyanus, popularly known in Brazil as piracanjuba, is a fish with great economic value but whose natural population drastically decreased in number during the last years.
Pedro Luiz de Castro   +8 more
doaj   +1 more source

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

open access: yesConservation Biology, EarlyView.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead   +6 more
wiley   +1 more source

The effect of environmental factors on transepithelial potential in a model Amazonian teleost, the tambaqui (Colossoma macropomum): Implications for sodium balance in harsh environments

open access: yesJournal of Fish Biology, EarlyView.
Abstract The tambaqui (Colossoma macropomum, G. Cuvier 1818) thrives both in the ion‐poor waters of the Amazon and in commercial aquaculture. In both, environmental conditions can be harsh due to low ion levels, occasional high salt challenges (in aquaculture), low pH, extreme PO2 levels (hypoxia and hyperoxia), high PCO2 levels (hypercapnia), high ...
Chris M. Wood   +5 more
wiley   +1 more source

Treatments for the control of Neoechinorhynchus buttnerae (Acanthocephala) in tambaqui Colossoma macropomum

open access: yesAquaculture International, 2022
Abstract Intensive fish farming with inadequate management can imbalance the fish-pathogen-environment relationship, culminating in diseases outbreaks. In the case of tambaqui Colossoma macropomum farming, it may be affected by acanthocephalosis, a parasitic infection without a specific and safe treatment yet. The objective of this study was to
Bruna Rafaela Caetano Nunes   +11 more
openaire   +1 more source

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