The effect of periphyton substrate density on production in freshwater polyculture ponds

Äzim, M.E.; Wahab, MA; Biswas, P. K.; Asaeda, T.; Fujino, Takeshi; Verdegem, Marc

doi:10.1016/j.aquaculture.2003.08.010

Cited by 45 publications

(32 citation statements)

References 14 publications

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“…The periphyton present in the underwater structures has not significantly affected the concentrations of nitrate in the present work's water. Azim et al (2004) have demonstrated that the periphyton can remove nitrogenous compounds from the water, such as ammonia, nitrite and nitrate. However, the removal rates of nitrogenous compounds by periphyton could be insignificant when their concentrations are very high, a fact that is generally present in intensive aquaculture tanks.…”

Section: Resultsmentioning

confidence: 99%

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

et al. 2017

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ABSTRACT. The present study aimed to assess the possible beneficial effects of the integration between bioflocs and periphyton to the Nile tilapia's water quality and growth performance. There were four treatments with five replicates each: (1) Control: green waters, (2) Periphyton: substrate-based system, (3) BFT: bioflocs technology for aquaculture, and (4) Biophyton: integration between bioflocs and periphyton. Fish (1.63 ± 0.07 g) were reared for 10 weeks in twenty 250 L outdoor tanks. Two polyethylene boards were vertically set out in the Periphyton and Biophyton tanks as underwater substrates. The C: N ratios of water in the BFT and Biophyton tanks were adjusted to 15:1 with dry molasses applications. The concentrations of total ammonia nitrogen were higher in the Control and Periphyton tanks than in the BFT and Biophyton ones. On the other hand, the concentrations of reactive phosphorus were higher in the BFT and Biophyton tanks than in the Control and Periphyton ones. The fish final body weight, specific growth rate and fish yield have not differed between the tanks. The integration between bioflocs and periphyton has not brought clear benefits to tilapia culture on water quality and growth performance.Keywords: aquaculture, Oreochromis niloticus, water quality.Integração entre bioflocos e perifíton em tanques de cultivo da tilápia do Nilo RESUMO. O presente trabalho teve por objetivo determinar os possíveis efeitos benéficos da integração entre bioflocos e perifíton na qualidade de água e no desempenho zootécnico da tilápia do Nilo. Trabalhou-se com quatro tratamentos com cinco repetições cada: (1) Controle: águas verdes, (2) Perifíton: sistema de cultivo baseado em substrato, (3) BFT: tecnologia bioflocos para aquicultura e (4) Biofíton: bioflocos + perifíton. Os peixes (1,63 ± 0,07 g) foram mantidos por dez semanas, em 20 tanques externos de 250 L. Duas pranchas de polietileno foram posicionadas verticalmente, nos tanques Perifíton e Biofíton, como substratos submersos. A relação C: N da água dos tanques BFT e Biofíton foi ajustada para 15:1 pela aplicação de melaço à água. As concentrações de nitrogênio amoniacal total foram maiores nos tanques Controle e Perifíton do que nos tanques BFT e Biofíton. Por outro lado, as concentrações de fósforo reativo foram maiores nos tanques BFT e Biofíton que nos tanques Controle e Perifíton. O peso corporal final, a taxa de crescimento específico e a produtividade de peixe não diferiram entre os tanques. A integração entre bioflocos e perifíton não apresentou claros benefícios para a criação da tilápia, em relação à qualidade da água e ao desempenho produtivo.Palavras-chave: aquicultura, Oreochromis niloticus, qualidade de água.

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Section: Resultsmentioning

confidence: 99%

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

et al. 2017

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“…Although the macroalgae can also complement the dietary supply of vitamins, minerals, and fiber (Mabeau & Fleurence 1993) in shrimp, it only supports maintenance levels when offered alone. The importance of the natural productivity to shrimp grown in semi-intensively managed ponds has been widely documented (Rubright et al 1981, FAO 1989, Nunes & Parsons 2000, Azim et al 2004). The systematic use of macroalgae in production ponds can provide a significant nutritional supply to cultured organisms, but also offers substrate for periphyton growth and refuge for shrimp in recent pre-and postmolting stages.…”

Section: Dietary Contributions From U Clathrata and Inert Feed To Grmentioning

confidence: 99%

Assessment of Nutrient Allocation and Metabolic Turnover Rate in Pacific White ShrimpLitopenaeus vannameiCo-Fed Live MacroalgaeUlva clathrataand Inert Feed: Dual Stable Isotope Analysis

Gamboa‐Delgado

Ricque‐Marie

2011

Journal of Shellfish Research

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“…Bamboo was selected as the substrate in this study because of its highquality periphyton production, availability, ease of use, and durability (Ramesh et al, 1999;Keshavanath et al, 2001). For substrate density, previous studies have suggested that adding substrates with a total surface area from 50 to 100% of the total pond surface area can increase fish production when compared to substrate-free control ponds, although the yields did not vary significantly among three substrate densities (Azim et al, 2004a). Increasing substrate density up to 100% can increase production costs in periphyton-based systems due to labor needs and availability of substrates.…”

Section: Introductionmentioning

confidence: 89%

Density-Dependent Growth and Production of Nile Tilapia (Oreochromis niloticus) Fingerlings Relative to Phytoplankton and Periphyton Biomass

Jiwyam

2014

Our Nature

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The growth, production and survival of Nile tilapia Oreochromis niloticus, with an average individual weight of 0.2 g were used to determine the density-dependent growth and production relative to phytoplankton and periphyton biomass in periphyton-based aquaculture. The trial was conducted in 10 m 2 concrete tanks for a 56 day period. A 10 cm layer of soil was placed at the bottom of each tank. To act as substrates for periphyton, bamboo poles with an approximate submerged surface area of 50% to that of the total tank surface area were vertically posted in the tank bottom. A weekly fertilizer dose of urea and triple superphosphate at a rate of 28 kg N and 7 kg P/ha/week was added. Four stocking densities in triplicate were used: 5, 10, 20, and 40 fish/m 2 (50, 100, 200, and 400 fish/tank). The results indicated that the carrying capacity of periphyton-based tanks for Nile tilapia was 293 g/m 2 in a 56-day culture period. The relationships between gross yields of tilapia (y) and periphyton dry matter (x), or chlorophyll a (x) were described as y = 353.2483-109.1809x, R 2 = 0.5646, P = 0.005, y = 125.5916 + 0.9698x, R 2 = 0.5841, P = 0.004. Provision of substrates at 50% of total tank surface area was sufficient for periphyton production in nutrient-rich aquaculture ponds where grazing rate and fish density in the system are balanced.

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The effect of periphyton substrate density on production in freshwater polyculture ponds

Cited by 45 publications

References 14 publications

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

<b>Integration between bioflocs and periphyton in Nile tilapia culture tanks

Assessment of Nutrient Allocation and Metabolic Turnover Rate in Pacific White ShrimpLitopenaeus vannameiCo-Fed Live MacroalgaeUlva clathrataand Inert Feed: Dual Stable Isotope Analysis

Density-Dependent Growth and Production of Nile Tilapia (Oreochromis niloticus) Fingerlings Relative to Phytoplankton and Periphyton Biomass

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