Biochemical composition of new yeasts and bacteria evaluated as food for bivalve aquaculture

Brown, Malcolm R.; Barrett, Stephanie M.; Volkman, John K.; Nearhos, Steven P.; Nell, John A.; Allan, Geoff L.

doi:10.1016/0044-8486(96)01286-0

Cited by 100 publications

(85 citation statements)

References 35 publications

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“…Under conditions close to those found in rearing facilities, the bacterial input should not represent more than 15% of the microalgal contribution for mollusk larvae and juveniles of many species [87,88]. Yeasts were as well investigated as an alternative food source -but poor results were observed [83,89].…”

Section: Alternatives To Fresh Microalgaementioning

confidence: 99%

“…Drying microalgae can cause, due to oxidation, a loss of PUFAs [108], which are essential components for larval growth [87]; the poor performance reported for dried microalgae was associated chiefly with the difficulty to keep cells in suspension without disintegrating them, so as to avoid said oxidation [13]. Moreover, when cell walls are broken, a high fraction of water-soluble components cannot be ingested by the organism, and may consequently interfere with the water quality of the aquaculture [109].…”

Section: Alternatives To Fresh Microalgaementioning

confidence: 99%

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Nutritional Value and Uses of Microalgae in Aquaculture

Guedes¹,

Malcata²

2012

Aquaculture

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Section: Alternatives To Fresh Microalgaementioning

confidence: 99%

Section: Alternatives To Fresh Microalgaementioning

confidence: 99%

Nutritional Value and Uses of Microalgae in Aquaculture

Guedes¹,

Malcata²

2012

Aquaculture

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“…In biofloc system, the heterotrophic bacteria colonize the feces, molts, dead organisms, and unconsumed food to produce bacterial biomass, which is consumed by detritivores [8]. Brown et al [33] evaluated the biochemical compositions of seven strains of marine bacteria and reported protein content (dry weight) of 29-49%, carbohydrates 2.5-11.2, lipids 4-6%, and, additionally, the presence of all essential amino acids.…”

Section: Bacteriamentioning

confidence: 99%

Biofloc Technology (BFT): A Tool for Water Quality Management in Aquaculture

Emerenciano¹,

Córdova²,

et al. 2017

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Biofloc technology (BFT) is considered the new "blue revolution" in aquaculture. Such technique is based on in situ microorganism production which plays three major roles: (i) maintenance of water quality, by the uptake of nitrogen compounds generating in situ microbial protein; (ii) nutrition, increasing culture feasibility by reducing feed conversion ratio (FCR) and a decrease of feed costs; and (iii) competition with pathogens. The aggregates (bioflocs) are a rich protein-lipid natural source of food available in situ 24 hours per day due to a complex interaction between organic matter, physical substrate, and large range of microorganisms. This natural productivity plays an important role recycling nutrients and maintaining the water quality. The present chapter will discuss some insights of the role of microorganisms in BFT, main water quality parameters, the importance of the correct carbon-to-nitrogen ratio in the culture media, its calculations, and different types, as well as metagenomics of microorganisms and future perspectives.

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“…Distribution of branched fatty acids sets PC4. This fraction of fatty acids originate from bacterial activity (Brown et al, 1996;Pazdro et al, 2001). Therefore, it can be safely assumed that PC4 represents the influence of bacterial activity on FLSM properties.…”

Section: Principal Components Analysis (Pca)mentioning

confidence: 99%

Factors influencing fluffy layer suspended matter (FLSM) properties in the Odra River - Pomeranian Bay - Arkona Deep System (Baltic Sea) as derived by principal components analysis (PCA), and cluster analysis (CA)

Pempkowiak

Bełdowski

Pazdro

et al. 2005

Hydrol. Earth Syst. Sci.

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Abstract. Factors conditioning formation and properties of suspended matter resting on the sea floor (Fluffy Layer Suspended Matter -FLSM) in the Odra river mouth -Arkona Deep system (southern Baltic Sea) were investigated.Thirty FLSM samples were collected from four sampling stations, during nine cruises, in the period 1996-1998. Twenty six chemical properties of the fluffy material were measured (organic matter-total, humic substances, a variety of fatty acids fractions, P, N, δ13C, δ15N; Li; heavy metalsCo, Cd, Pb, Ni, Zn, Fe, Al, Mn, Cu, Cr). The so obtained data set was subjected to statistical evaluation.Comparison of mean values of the measured properties led to conclusion that both seasonal and spatial differences of the fluffy material collected at the stations occured. Application of Principal Component Analysis, and Cluster Analysis, to the data set amended with environmental characteristics (depth, salinity, chlorophyll a, distance from the river mouth), led to quantification of factors conditioning the FLSM formation. The five most important factors were: contribution of the lithogenic component (responsible for 25% of the data set variability), time dependent factors (including primary productivity, mass exchange with fine sediment fraction, atmospheric deposition, contribution of material originating from abrasion-altogether 21%), contribution of fresh autochtonous organic matter (9%), influence of microbial activity (8%), seasonality (8%).

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Biochemical composition of new yeasts and bacteria evaluated as food for bivalve aquaculture

Cited by 100 publications

References 35 publications

Nutritional Value and Uses of Microalgae in Aquaculture

Nutritional Value and Uses of Microalgae in Aquaculture

Biofloc Technology (BFT): A Tool for Water Quality Management in Aquaculture

Factors influencing fluffy layer suspended matter (FLSM) properties in the Odra River - Pomeranian Bay - Arkona Deep System (Baltic Sea) as derived by principal components analysis (PCA), and cluster analysis (CA)

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