Refúgios artificiais coloridos e o desempenho e sobrevivência de alevinos de Leporinus macrocephalus (Garavello &amp; Britsky, 1988)

Andrade, Luciana Segura de; Hayashi, Carmino; Soares, Claudemir Martins

doi:10.1590/s0103-84782006000100038

Cited by 2 publications

(2 citation statements)

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“…O ambiente azul dos aquários aumentou os confrontos entre Leporinus macrocephalus, o que afetou a saúde dos animais e as taxas de sobrevivência (Andrade et al, 2006). Contudo, o cultivo em aquários de cor marrom e azul não interferiu na sobrevivência de Lophiosilurus alexandri e Prochilodus costatus (Pedreira et al, 2012).…”

Section: Resultsunclassified

Larvicultura de piabanha-do-pardo em aquários de cores diferentes

Costa

Pedreira

Coraspe-Amaral

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito de diferentes cores de aquários na larvicultura da piabanha-do-pardo (Brycon sp.). Os tratamentos consistiram na utilização de aquários de cores claras (branca, verde e azul) e escuras (marrom e preta). Ao final do experimento, foram mensurados a sobrevivência, o peso, o comprimento total e a coloração das larvas, que foram comparados pelo teste de Tukey, a 5% de probabilidade. A sobrevivência foi menor (66,25%), com maior taxa de canibalismo (17,08%), no aquário de cor azul, quando comparado ao aquário de cor marrom (84,17%), com baixa taxa de canibalismo (6,25%). O comprimento total, o peso e a mortalidade não diferiram entre os tratamentos. A coloração das larvas escureceu progressivamente dos aquários mais claros para os mais escuros, o que interferiu no canibalismo e na sobrevivência. O aquário marrom promove maior valor de sobrevivência e menor taxa de canibalismo nas larvas de piabanha-do-pardo.Termos para indexação: Brycon, canibalismo, coloração, mortalidade, pigmentação. Larviculture of piabanha-do-pardo in aquariums of different colorsAbstract -The objective of this work was to evaluate the effect of different colors of aquariums on the larviculture of piabanha-do-pardo (Brycon sp.). The treatments consisted of the use of light-(white, green, and blue) and dark-(brown and black) colored aquariums. At the end of the experiment, survival, weight, total length, and color of the larvae were measured and compared by the Tukey test, at 5% probability. Survival was lower (66.25%), with a higher rate of cannibalism (17.08%), in the blue-colored aquarium when compared to the brown-colored one (84.17%), with a low rate of cannibalism (6.25%). Total length, weight, and mortality did not differ among treatments. The color of the larvae gradually darkened from the lighter to the darker aquariums, which interfered with cannibalism and survival. The brown aquarium promotes a greater survival value and a lower rate of cannibalism in larvae of piabanha-do-pardo.

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Section: Resultsunclassified

Larvicultura de piabanha-do-pardo em aquários de cores diferentes

Costa

Pedreira

Coraspe-Amaral

et al. 2013

Pesq. agropec. bras.

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“…Among the species of the genus Leporinus, L. macrocephalus is the largest species. Thus, it had been cultivated mainly in the Southeast Brazilian region, once it presents high weight gain, high feed conversion, fast growth, tasty meat and rusticity to cultivation (Andrade et al 2006, Capodifoglio et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Parasites in Leporinus macrocephalus (Anostomidae) of four fish farms from the western Amazon (Brazil)

Negreiros¹,

Neves²,

Tavares‐Dias

2021

An. Acad. Bras. Ciênc.

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This study evaluated the presence of metazoan parasites in Leporinus macrocephalus from four fi sh farms from the western Amazon (Brazil). In 160 fi sh examined, prevalence was 61.9%, and parasites found were: Urocleidoides paradoxus, Urocleidoides eremitus, Tereancistrum parvus, Jainus leporini, Procamallanus (Spirocamallanus) inopinatus, Rhabdochona (Rhabdochona) acuminata, Dolops discoidalis and Ergasilus sp., but U. paradoxus was the dominant parasite. Jainus leporini and Ergasilus sp. occurred only in L. macrocephalus from one fi sh farm, while U. paradoxus, U. eremitus and T. parvus were found in fi sh from three fi sh farms. Dolops discoidalis, P. (S.) inopinatus and R. (R.) acuminata occurred only in L. macrocephalus from two fi sh farms. Higher infection levels were caused by U. paradoxus, U. eremitus and P. (S.) inopinatus, which had an aggregated dispersion. There was positive correlation between abundance of parasites and the length of hosts. No difference in the condition factor of parasitized and non-parasitized fi sh were found. Such differences between fi sh farms were attributed to differences in management and quality of cultivation environments, and data indicate the need to adopt prophylactic measures in the fi sh farms to prevent diseases in the future. This was the fi rst report of D. discoidalis and Ergasilus sp. for L. macrocephalus.

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Refúgios artificiais coloridos e o desempenho e sobrevivência de alevinos de Leporinus macrocephalus (Garavello & Britsky, 1988)

Abstract: RESUMO O presente experimento foi realizado no Laboratório de Aqüicultura da Universidade Estadual de Maringá com o objetivo de avaliar o desempenho e a sobrevivência de alevinos de

Cited by 2 publications

References 12 publications

Larvicultura de piabanha-do-pardo em aquários de cores diferentes

Larvicultura de piabanha-do-pardo em aquários de cores diferentes

Parasites in Leporinus macrocephalus (Anostomidae) of four fish farms from the western Amazon (Brazil)

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