Effects of tank colour and light intensity on feed intake, growth rate and energy expenditure of juvenile Eurasian perch, Perca fluviatilis L.

Strand, Åsa; Alanärä, Anders; Staffan, Fia; Magnhagen, Carin

doi:10.1016/j.aquaculture.2007.08.052

Cited by 87 publications

(92 citation statements)

References 36 publications

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“…Similarly, cannibalism, mortality and survival rates were unaffected by light intensities (Table 3). These results are in agreement with previous studies, where light intensity did not affect the performance of juvenile Perca fluviatilis (Strand et al, 2007), Hoplias lacerade fingerlings (Salaro et al, 2006), and post-larval Dicentrachus labrax (Cuvier-Péres et al, 2001). In contrast, Han et al (2005) reported significant differences in weight gain for juvenile Leiocassis longirostris, and observed that fish reared under intermediate intensity light yielded higher productive performance.…”

Section: Dietsupporting

confidence: 83%

Feed training of juvenile giant trahira under different light intensities

et al. 2011

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-The aim of this study was to evaluate the influence of light intensity on the feed training of juvenile giant trahiras (Hoplias lacerdae). A completely randomized design with four light treatments and three replicates was used, and the following light intensities were tested: 204.9; 177.58; 54.64 and 0.00 lux. Juvenile giant trahiras (length = 3.0 ± 0.4 cm and weight = 0.5 ± 0.05 g) were stocked at 6 fish L -1 in 12 rectangular tanks (24 × 20 × 14 cm) containing six liters of water, and subjected to feed training to accept dry diets. At the end of the experiment (21 days), weight gain, length gain, survival, cannibalism, and mortality rates were evaluated. Data were subjected to regression analysis at 5% probability. Different light intensities did not affect growth, survival, mortality, or cannibalism rates in juvenile giant trahiras during the feed training.Therefore, this species can be trained to accept dry diets in the presence or absence of light.

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Section: Dietsupporting

confidence: 83%

Feed training of juvenile giant trahira under different light intensities

et al. 2011

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“…For perch larvae, tank color and light intensity influences behavioral and physiological stress, which can result in reduced growth rate and feeding (Strand et al, 2007). Common carp larvae reared in white tanks showed higher specific growth and lower food conversion rates and plasma cortisol levels than those kept in black and green tanks, suggesting lower stress in white tanks (Papoutsoglou et al, 2000).…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, pelagic species have eyes placed laterally (Kirchheim & Goulart, 2010). The contrast between the color of the food organism and the wall of the tank is important for the visual perception of the prey by the larvae (Krise & Meade, 1986;Ostrowsky, 1989), providing higher or lower visibility and consumption of prey (Pedreira & Sipaúba-Tavares, 2001;Strand et al, 2007), and also affecting survival (Tamazouzt et al, 2000;Pedreira et al, 2008b), growth (Jentoft et al, 2006;Strand et al, 2007;Monk et al, 2008), biochemical parameters (Karakatsouli et al, 2007), skin pigmentation (Amiya et al, 2005;Doolan et al, 2007), agonistic behavior and motor activity (Merighe et al, 2004), and finally productivity (Pedreira & Sipaúba-Tavares, 2001). …”

Section: Resultsmentioning

confidence: 99%

Larviculture of two neotropical species with different distributions in the water column in light- and dark-colored tanks

et al. 2012

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The influence of tank color on the visual perception of fish larvae and the success of their cultivation depends on the characteristics of each species combined with environmental factors. In this study, we determined the effect of light and dark tank colors on the larviculture of pacamã (Lophiosilurus alexandri), a species with a benthonic habit, and curimatá-pioa (Prochilodus costatus), which swims actively in the water column. Larvae of pacamã and curimatá-pioa were cultivated for 10 days in 5-L tanks, at a density of 15 larvae L -1 and luminosity of 141.7 ± 8.95 lux, and fed Artemia nauplii. Four tank colors were used: green, light blue, brown, and black (with four replications). Survival, biomass and Fulton's condition factor for pacamã larvae were similar in the different colored tanks. However, the larvae in the green tanks showed lower weight than those cultivated in black and brown tanks, as well as shorter total length than that of larvae in the brown-colored tanks. These results are probably due to the association between tank color and benthonic habitat of the pacamã. For the curimatá-pioa, survival and biomass were similar for the different colors. The weight and Fulton's condition factor were higher for the larvae cultivated in green and blue tanks. This result could be associated with the adaptation of curimatá-pioa larvae to active swimming in the water column, searching for prey.A interferência da cor do tanque na percepção visual da larva de peixe e no sucesso do seu cultivo depende da caraterística de cada espécie combinada com fatores ambientais. Neste estudo foi investigado o efeito de tanques de cores claras e escuras na larvicultura do pacamã Lophiosilurus alexandri, espécie de hábito bentônico, e, curimatá-pioa Prochilodus costatus, que nada ativamente na coluna da água. Larvas de pacamã e de curimatá-pioa foram cultivadas por 10 dias, em tanques contendo 5 L de água, a uma densidade de 15 larvas L -1 , luminosidade de 141.7 ± 8.95 lux, alimentados com náuplios de Artemia. Quatro cores de tanques foram usadas: verde e azul claras, marrom e preta (com quatro repetições). Para as larvas de pacamã, a sobrevivência, biomassa e o fator de condição de Fulton foram similares entre os tanques de diferentes cores. Entretanto, as larvas nos tanques verdes apresentara um peso menor do que as cultivadas nos tanques de cor preta e marrom, assim como um menor comprimento total, que as larvas cultivadas em tanque marrom. Estes resultados provavelmente têm origem da associação da cor do tanque com o hábito bentônico do pacamã. Para o curimatá-pioa, a sobrevivência e a biomassa foram similares entre as cores. O peso e o fator de condição de Fulton foram maiores para as larvas cultivadas nos tanques de cor verde e azul, seguidas pelo marrom e preto. Este resultado pode estar associado a adaptação das larvas de curimatá-pioa a natação ativa na coluna da água à procura de presa.

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“…A maioria dos estudos foca em mostrar os efeitos das cores do ambiente na sobrevivência e no canibalismo das larvas de peixes e organismos aquáticos (Tamazouzt et al, 2000;Yasharian et al, 2005), e a sua correlação com o estresse (Rotllant et al, 2003) e com o crescimento (Strand et al, 2007).…”

Section: Introductionunclassified

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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Effects of tank colour and light intensity on feed intake, growth rate and energy expenditure of juvenile Eurasian perch, Perca fluviatilis L.

Cited by 87 publications

References 36 publications

Feed training of juvenile giant trahira under different light intensities

Feed training of juvenile giant trahira under different light intensities

Larviculture of two neotropical species with different distributions in the water column in light- and dark-colored tanks

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

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