Importance of biofilm for water quality and nourishment in intensive shrimp culture

Thompson, Fabiano L.; Abreu, Paulo César; Wasielesky, Wilson

doi:10.1016/s0044-8486(01)00642-1

Cited by 210 publications

(196 citation statements)

References 16 publications

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“…ABREU et al (1998) relatam que microrganismos (bactérias, ciliados, flagelados e microalgas) presentes no biofilme aderido a substratos submersos podem representar uma fonte substancial de alimento para larvas e juvenis de F. paulensis. A presença de biofilme aderido à parede dos tanques de cultivo resultou na melhoria da qualidade de água e no maior crescimento de F. paulensis (THOMPSON et al, 2002). Neste mesmo trabalho, a análise do conteúdo estomacal de F. paulensis indicou o consumo não seletivo do biofilme.…”

Section: Introductionunclassified

Efeito da densidade de estocagem sobre o biofilme e o desempenho de pós-larvas do camarão-rosa FarfantePenaeus paulensis cultivadas em gaiolas

et al. 2005

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Section: Introductionunclassified

Efeito da densidade de estocagem sobre o biofilme e o desempenho de pós-larvas do camarão-rosa FarfantePenaeus paulensis cultivadas em gaiolas

et al. 2005

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“…According to Chen et al (2012), T. chuii showed the highest TAN uptake which led to lower nutrient toward the end of culture compared to the other microalgae species studied. Thus, minimal or no water exchange can be considered on PL fed with T. chuii inclusion which is beneficial due to the cost and labor usually needed for frequent water exchange in aquaculture to maintain a good water quality (Thompson et al 2002). Meanwhile, there was no significant difference in the physical parameters (temperature, salinity, light and pH) of the water for all treatments during the whole experimental period (Table 3).…”

Section: Effect Of T Chuii As Feed Additives On Physical and Chemicamentioning

confidence: 99%

Tetraselmis chuii biomass as a potential feed additive to improve survival and oxidative stress status of Pacific white-leg shrimp Litopenaeus vannamei postlarvae

et al. 2017

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Shrimp is an important traded fishery commodity. When subjected to stress, shrimp usually suffers from oxidative stress, which leads to cell injury, senescence, and death. To maintain shrimp good health, performance and production, antioxidant and immune systems are important. Natural antioxidants found in microalgae may be used to increase the cell protection against oxidative damage, being a promising alternative to the carcinogenic synthetic antioxidants. In this study, Tetraselmis chuii was evaluated for its effect on survival, growth and oxidative stress biomarkers on Litopenaeus vannamei postlarvae (PL). The antioxidant properties of the formulated feed with T. chuii inclusion were determined using four antioxidant chemical assays. Meanwhile, the oxidative stress biomarkers on PL were analyzed by hydrogen peroxide, membrane stability and lipid peroxidation assays. Results showed that PL reared on diets supplemented with 50% T. chuii had a significantly higher (P B 0.05) survival (97.6 ± 1.4%) and lower oxidative stress in terms of hydrogen peroxide content (10.08 ± 0.4 mM g -1 FW) and electrolyte leakage (10.8 ± 0.3%). The result of this study also showed that shrimp PL reared on diets supplemented with microalgal, T. chuii have high resistance to reverse salinity stress test (76.7-100%). However, no significant differences (P C 0.05) were found in the growth and lipid peroxidation. Due to the positive effect on oxidative stress status, survival and resistance to salinity stress, the feeding of L. vannamei PL with diet containing at least 50% of T. chuii is recommended as a natural source of antioxidant for PL.

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“…The growth of Oscillatoria sp. required substantial absorption of ammonia from the water body (Thompson et al, 2002), which could explain the direct influence of ammonia on S3. Furthermore, the lowest evenness of phytoplankton was confined to patches with the most imbalanced supply of resources (Gamfeldt & Hillebrand, 2011).…”

Section: Space Variation In Tendencies Of Sediment Phosphorus Releasementioning

confidence: 99%

Sediment–water interaction in phosphorus cycling as affected by trophic states in a Chinese shallow lake (Lake Donghu)

Chen

Hou

et al. 2016

Hydrobiologia

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Lake sediment substantially accumulates nutrients, while little is known regarding the conditions under which it tends to be a sink or source of phosphorus. It is postulated that the above functions were largely dependent on trophic state. To test this hypothesis, composition, abundance, and size-spectrum of phytoplankton were studied in a Chinese shallow lake (Lake Donghu), together with concentrations and sorption behaviors of phosphorus in water column and sediment. Relationships among these variables were also examined by structural equation model. In the basins with the lowest phosphorus concentration, sediment was a phosphorus source as judged by equilibrium phosphorus concentration, directly affecting the abundance of phytoplankton with smaller size. Contrastingly, in the basins with the highest phosphorus concentration, sediment tended to uptake phosphorus, companied by the lowest ratio of nitrogen to phosphorus, diversity, and evenness of phytoplankton with the smaller size one dominating. Oscillatoria sp. was directly affected by ammonia and phosphorus. Moreover, with a balanced exchange of phosphorus between sediment and water column, phytoplankton increased markedly with the highest diversity and evenness in the basins having intermediate phosphorus concentration. Overall, trophic state modulated sediment functions to supply nutrient and was in turn greatly affected by the sediment in shallow lakes.

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Importance of biofilm for water quality and nourishment in intensive shrimp culture

Cited by 210 publications

References 16 publications

Efeito da densidade de estocagem sobre o biofilme e o desempenho de pós-larvas do camarão-rosa FarfantePenaeus paulensis cultivadas em gaiolas

Efeito da densidade de estocagem sobre o biofilme e o desempenho de pós-larvas do camarão-rosa FarfantePenaeus paulensis cultivadas em gaiolas

Tetraselmis chuii biomass as a potential feed additive to improve survival and oxidative stress status of Pacific white-leg shrimp Litopenaeus vannamei postlarvae

Sediment–water interaction in phosphorus cycling as affected by trophic states in a Chinese shallow lake (Lake Donghu)

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