The feeding activity of Colossoma macropomum larvae (tambaqui) in fishponds with water hyacinth (Eichhornia crassipes) fertilizer

Sipaúba-Tavares, Lúcia Helena; Braga, Francisco Manoel de Souza

doi:10.1590/s1519-69842007000300010

Cited by 22 publications

(21 citation statements)

References 12 publications

(10 reference statements)

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“…macropomum . The species is an omnivorous fish with a tendency to eat zooplankton, fruits and seeds [68, 69]. Although the competition pressure of these allochthonous invaders might not be severe, omnivorous fish may have as much impact as predator species in native assemblages, as these species are capable of changing environmental quality and nutrient cycling, thus imposing impacts at the ecosystem level [70, 71].…”

Section: Discussionmentioning

confidence: 99%

Two sides of a coin: Effects of climate change on the native and non-native distribution of Colossoma macropomum in South America

et al. 2017

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Climate change and species invasions interact in nature, disrupting biological communities. Based on this knowledge, we simultaneously assessed the effects of climate change on the native distribution of the Amazonian fish Colossoma macropomum as well as on its invasiveness across river basins of South America, using ecological niche modeling. We used six niche models within the ensemble forecast context to predict the geographical distribution of C. macropomum for the present time, 2050 and 2080. Given that this species has been continuously introduced into non-native South American basins by fish farming activities, we added the locations of C. macropomum farms into the modeling process to obtain a more realistic scenario of its invasive potential. Based on modelling outputs we mapped climate refuge areas at different times. Our results showed that a plenty of climatically suitable areas for the occurrence of C. macropomum occurrence are located outside the original basins at the present time and that its invasive potential is greatly amplified by fish farms. Simulations of future geographic ranges revealed drastic range contraction in the native region, implying concerns not only with respect to the species conservation but also from a socio-economic perspective since the species is a cornerstone of artisanal and commercial fisheries in the Amazon. Although the invasive potential is projected to decrease in the face of climate change, climate refugia will concentrate in Paraná River, Southeast Atlantic and East Atlantic basins, putting intense, negative pressures on the native fish fauna these regions. Our findings show that short and long-term management actions are required for: i) the conservation of natural stocks of C. macropomum in the Amazon, and ii) protecting native fish fauna in the climate refuges of the invaded regions.

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Section: Discussionmentioning

confidence: 99%

Two sides of a coin: Effects of climate change on the native and non-native distribution of Colossoma macropomum in South America

et al. 2017

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“…It was also observed in this study a high amount of resting eggs in the gut of H. eques . It has been reported that these fish have difficulty in digesting resting eggs (Sipaúba‐Tavares & Braga ). There was a direct relationship between the availability of Copepoda nauplii and Rotifera in open ponds and their presence in the gut content of fish exposed to both live food dietary treatments.…”

Section: Discussionmentioning

confidence: 99%

“…Haematococcus pluvialis Flotow (Chlorophyceae), for example, is a unicellular green microalga that is used as pigment additive in aquaculture and as supplementary additive in the food industry (Gonzàlez, Cifluentes & Gòmez ). In addition, Ankistrodesmus gracilis (Reisch) Korsikov (Chlorophyceae) is highly appreciated by aquatic organisms due to its size, shape and thickness of cell walls, features that make it easily palatable by the fish (Sipaúba‐Tavares & Bachion ; Sipaúba‐Tavares & Braga ).…”

Section: Introductionmentioning

confidence: 99%

Diets supplemented with microalgal biomass: effects on growth, survival and colouration of ornamental fishHyphessobrycon eques(Steindacher 1882)

2015

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This study evaluated the effects of the addition of microalgae (Ankistrodesmus gracilis and Haematococcus pluvialis) to the fish diet in improving the growth and optimal pigmentation (red carotenoid) of Hyphessobrycon eques. The basal mixed diets consisted of a formulated diet, supplemented with dried microalgae biomass of A. gracilis (1.5 g kg À1 ) and H. pluvialis (1.5 g kg À1 ). The live food diets contained zooplankton was cultured in open ponds, associated with microalgae. All the microalgae were cultured in the laboratory. No mortality was observed with any experimental diets. Fish performance results showed significant differences (P < 0.05) between the basal diet (BD) and the live food diet. The higher weight and total length were observed with mixed diets (BD + H. pluvialis and BD + A. gracilis). The mixed diets promoted more intense values of chroma (Cab*), lightness (L*) and redness (a*) to H. eques. Diaphanosoma birgei (Cladocera) represented more than 32% of zooplankton ingested by ornamental fish in live food (zooplankton and zooplankton + microalgae), and Argyrodiaptomus furcatus (Copepoda) was the species most ingested by H. eques in live food dietary treatment zooplankton. The feeding behaviour observed in the laboratory as well as the food preferences of H. eques was dependent on the zooplankton composition present in the used open ponds. This study showed that diets with microalgae and zooplankton were able to enhance the pigmentation of H. eques, being a good tool to benefit the culture management of this species.

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“…Previous studies have evaluated mostly the metabolism and physiology (Correa, 2007;Assis et al, 2007Assis et al, , 2010Marcushi, 2010), reproduction Maria et al, 2012;Galo et al, 2015), nutrition (Sipaúba-Tavares & Braga, 2007) and genotoxicity aspects (da Rocha et al, 2011). However, knowledge about the skeletal muscle growth and morphology is limited to embryonic / larval and juvenile development, which does not describe the gain weight by muscle growth until slaughter phase (Alves- Costa et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)

et al. 2016

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This study aimed to evaluate muscle organization in tambaqui in order to describe the muscle growth process. We analyzed the morphometric pattern of fibers from white muscle of young-adults (300 days) by smaller diameter. The organization of white muscle exhibited a typical morphological pattern found in other fish species. Heavier animals showed higher frequency of larger diameter fibers (>50 μm) and smaller animals had higher frequency of smaller diameter fibers (<20 μm) (P=0.005). However, both animals showed the same frequency of intermediate diameter fibers (20-50 μm). Body weight showed a positive correlation with muscle diameter fiber (r=0.45), being 20-50 μm the diameters that contributed the most to animal weight (P <0.0001). A weak correlation between fiber diameter and animal sex was observed (r=0.2). Females showed higher frequency of large fiber diameters (>50 μm) than males. However, there was no difference between body weight and sex (P=0.8). Our results suggest that muscle growth is by hypertrophy and hyperplasia due to a mosaic appearance from different diameters fibers, which is characteristic of large size fish species.O objetivo deste trabalho foi avaliar a organização muscular em tambaqui, a fim de descrever o processo de crescimento muscular. Foi analisado o padrão morfométrico das fibras do músculo branco de animais com 300 dias de idade usando o método de diâmetro menor. O músculo branco apresentou uma organização morfológica padrão encontrado em peixes. Animais de maior peso apresentaram maior frequência de fibras de maior diâmetro (> 50 μm) e os animais de menor peso apresentaram maior frequência de fibras de menor diâmetro (<20 μm) (P = 0,005). Entretanto, ambos os animais, com maior e menor peso, apresentaram frequências semelhantes de fibras de diâmetro intermediário (20-50 μm). O parâmetro peso corporal mostrou correlação positiva com o diâmetro da fibra muscular (r = 0,45), sendo as fibras de diâmetro intermediários (20-50 μm) que mais contribuíram para o peso do animal (P <0,0001). Fêmeas apresentaram maior frequência de fibras de maior diâmetro (>50 μm) que machos. Observou-se uma fraca correlação entre o diâmetro da fibra e o sexo dos animais (r = 0,2). Apesar de fraca, a correlação estimada é corroborada pela fibras de grandes diâmetros (> 50 μm) serem mais frequente nas fêmeas que nos machos. No entanto, não houve diferença entre o peso corporal dos animais aos 300 dias de idade e sexo (P = 0,8). Os resultados encontrados sugerem que o crescimento muscular ocorre por hipertrofia e hiperplasia, caracterizado pela aparência em mosaico de fibras de diferentes diâmetros, característico de peixes de grande tamanho.

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The feeding activity of Colossoma macropomum larvae (tambaqui) in fishponds with water hyacinth (Eichhornia crassipes) fertilizer

Cited by 22 publications

References 12 publications

Two sides of a coin: Effects of climate change on the native and non-native distribution of Colossoma macropomum in South America

Two sides of a coin: Effects of climate change on the native and non-native distribution of Colossoma macropomum in South America

Diets supplemented with microalgal biomass: effects on growth, survival and colouration of ornamental fishHyphessobrycon eques(Steindacher 1882)

Morphological and morphometric analysis of skeletal muscle between male and female young adult Colossoma macropomum (Characiformes: Serrasalmidae)

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