This publication will concentrate on the culture and feeding of rotifers, but will include information on less used zooplankton such as cladocerans water fleas , copepods and tintinnid ciliates. An important larger zooplanktor used in aquaculture is the Artemia brine shrimp , which is the subject of SRAC publication It is a euryhaline species, small and slow swimming, with good nutritional value. It is well suited to mass culture because it is prolific and tolerates a wide variety of environmental conditions.
Strain selection is important because reproduction rate, size and optimum culture conditions temperature and salinity can all vary with different strains and species. Some freshwater rotifer variation can be seen in Figure 1b. Two of the best known strains of brackishwater rotifers were thought to be morphotypes of B. Later it was found that these are two different species L being B.
Mean dry weights are approximately 0. The size of the S type is to micrometers according to one source, and to micrometers according to another. The L type is to micrometers according to one source, and to micrometers according to another. Larval fish survive better with L-type rotifers, probably because the larvae use less energy to feed on larger rotifers. Rotifers may tolerate 1 to 97 ppt salinity, but optimum reproducreproduction occurs below 35 ppt.
Most production facilities use 10 to 20 ppt salinity. Abrupt salinity changes of more than 5 ppt can inhibit swimming or even cause death, so acclimation should be done slowly and carefully. Temperature, salinity and feed concentration all affect the growth rate of rotifers, but temperature is the most critical factor. Rotifers have broad nutritional requirements that must be met to produce stable cultures. They are planktonic filter feeders, feeding on organic particles brought to their mouths by the movements of their coronas.
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The corona is a ciliated organ on the head region that characterizes rotifers and is their means of locomotion. Rotifers ingest many types of feed, including bacteria, as long as the size of the particle is appropriate, so a variety of food sources can be used to rear rotifers. However, rotifers cultured indoors often require vitamin B 12 and vitamin A supplements. The nutritional value of rotifers for larval fish depends on the rotifers' food source.
Researchers have determined that highly unsaturated fatty acids HUFAs are essential for the survival and growth of marine finfish larvae. Rotifer feeds containing DHA, n-3, docosahexaenoic acid, and EPA, n-3, eicosapentaenoic acid, can be valuable, with DHA the more essential for marine fish larvae. Depending upon their food source, rotifers are about 52 to 59 percent protein, up to 13 percent fat, and 3.
There are many methods of culturing rotifers. Some are low-density and some high-density. An early method involved daily transfers of rotifers to fresh tanks of the same size after most of the algae were consumed. Porphyrins are often used as indicators of environmental pollution 66 , 67 ; thus increase in their metabolism in CONT tanks may be indicative of water quality differences between treatments. Pathways elevated in probiotic-treated water included thirteen pathways within metabolism.
These products aid in growth, protect against ammonia and xenobiotics, enhance the stress response, and act as energy sources for immune and other cells in fishes Other bacterial functions that suggest an increase in energy sources for fish cells include butanoate, proponoate, and pyruvate metabolism, synthesis and degradation of ketone bodies, and pantothenate and CoA biosynthesis. The increase in these pathways suggests the water microbiota may be providing energy benefits to the fish larvae upon stocking of the systems. Probiotic-treated water also included numerous upregulated pathways associated with immune health, including peroxisome which protects cells against oxidative stress 69 , and terpenoid backbone synthesis and geraniol degradation whose benefits include antioxidant, anti-inflammatory, and wound healing capabilities 70 , Additionally, phosphonate and phosphinate metabolism was increased.
These antimicrobial compounds are produced by some members of Bacillus In conclusion, use of a mixed Bacillus species probiotic improves survival and transport stress resistance in common snook. Data from two trials suggest that potential mechanisms for larval rearing improvement include enhanced development of the gastrointestinal tract, boosted immunity, inhibition of pathogens and opportunists, and improved water quality. Early stabilization of microbiota within RAS improved overall success in fish production, and also improved performance of the probiotic.
The range of benefits provided by these Bacillus strains suggests the potential for this probiotic to be valuable in other fish species, improving the sustainability of recirculating aquaculture and reducing the larval rearing bottleneck to enhance the overall efficiency of fish production systems.
The state of world fisheries and aquaculture Vadstein, O. Microbiology and immunology of fish larvae. Rev Aquacult 5 , S1—S25 Ozone application in recirculating aquaculture system: An overview. Ozone Sci Eng 33 , — De Schryver, P. Ecological theory as a foundation to control pathogenic invasion in aquaculture. ISME J 8 , —8 Perez-Sanchez, T. Probiotics in aquaculture: A current assessment.
Rev Aquacult 6 , — Innate immunity of fish overview. Fish Shellfish Immun 20 , — The role of probiotics in aquaculture. Vet Microbiol , — Xu, H. Antibacterial activity of the lipopetides produced by Bacillus amyloliquefaciens M1 against multidrug-resistant Vibrio spp. Appl Microbiol Biotechnol 98 , — Arena, A. Antiviral and immunoregulatory effect of a novel exopolysaccharide from a marine thermotolerant Bacillus licheniformis.
Int Immunopharmacol 6 , 8—13 Avella, M. Effect of dietary probiotics on clownfish: a molecular approach to define how lactic acid bacteria modulate development in a marine fish. Suzer, C. Lactobacillus spp. Aquaculture , — Sun, Y.
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Application of autochthonous Bacillus bioencapsulated in copepod to grouper Epinephelus coioides larvae. Aquaculture — , 44—50 Muller, R. The stock assessment update of common snook, Centropomus undecimalis. Fish and Wildlife Conservation Commission, Tarnecki, A. Microbiota of common snook Centropomus undecimalis larvae exhibiting high mortality. Aquac Res 48 , — Rhody, N. Parental contribution and spawning performance in captive common snook Centropomus undecimalis broodstock.
Influence of temperature on yolk resorption in common snook Centropomus undecimalis Bloch, larvae. Bradford, M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem 72 , — Ross, N. Changes in hydrolytic enzyme activities of naive Atlantic salmon Salmo salar skin mucus due to infection with the salmon louse Lepeophtheirus salmonis and cortisol implantation.
Dis Aquat Organ 41 , 43—51 Kozich, J. Development of a dual-index sequencing strategy and curation pipeline for analyzing amplicon sequence data on the miseq illumina sequencing platform. Appl Environ Microb 79 , — Quast, C. Nucleic Acids Res 41 , — DeSantis, T.
Appl Environ Microb 72 , — Clarke, K. Primer-e, Langille, M. Predictive functional profiling of microbial communities using 16S rRNA marker gene sequences. Nat Biotechnol 31 , — Segata, N. Metagenomic biomarker discovery and explanation. Genome Biol 12 , R60 Berkeley, S. Maternal age as a determinant of larval growth and survival in a marine fish, Sebastes melanops. Ecology 85 , — Avila, E. Yolk and oil globule utilization and developmental morphology of the digestive tract epithelium in larval rabbitfish, Siganus guttatus Bloch.
Aquaculture 65 , — Hauville, M. Effects of a mix of Bacillus sp.
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Aquacult Nutr 22 , 51—60 Mandiki, S. Effects of probiotic bacteria on growth parameters and immune defence in Eurasian perch Perca fluviatilis L. Aquac Res 42 , — Das, A. Effects of potential probiotic Bacillus amyloliquifaciens FPTB16 on systemic and cutaneous mucosal immune responses and disease resistance of catla Catla catla. Fish Shellfish Immun 35 , — Zhang, C. Combined effects of dietary fructooligosaccharide and Bacillus licheniformis on innate immunity, antioxidant capability and disease resistance of triangular bream Megalobrama terminalis.
Reda, R. Evaluation of Bacillus amyloliquefaciens on the growth performance, intestinal morphology, hematology and body composition of Nile tilapia.
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Oreochromis niloticus. Selim, KM 23 , — Touraki, M. Evaluation of the probiotics Bacillus subtilis and Lactobacillus plantarum bioencapsulated in Artemia nauplii against vibriosis in European sea bass larvae Dicentrarchus labrax , L. World J Microbiol Biotechnol 28 , — Fjellheim, A. Inter-individual variation in the dominant intestinal microbiota of reared Atlantic cod Gadus morhua L.
Aquac Res 43 , — Lamari, F. Comparison of the effects of the dietary addition of two lactic acid bacteria on the development and conformation of sea bass larvae, Dicentrarchus labrax, and the influence on associated microbiota. Aquaculture — , — Thompson, F.
Feeding of fish larvae in aquaculture
Biodiversity of vibrios. Microbiol Mol Biol R 68 , — Yan, Q. Environmental filtering decreases with fish development for the assembly of gut microbiota. Environ Microbiol 18 , — Nayak, S. Probiotics and immunity: a fish perspective. Fish Shellfish Immun 29 , 2—14 Martin-Antonio, B. Intestinal microbiota variation in Senegalese sole Solea senegalensis under different feeding regimes. Aquac Res 38 , — Smith, K.
Microbial diversity and potential pathogens in ornamental fish aquarium water. Michaud, L. Phylogenetic characterization of the heterotrophic bacterial communities inhabiting a marine recirculating aquaculture system. J Appl Microbiol , — Sugita, H. Microbial communities associated with filter materials in recirculating aquaculture systems of freshwater fish.
Vazquez Silva, G. Effect of bacterial probiotics bio encapsulated into Artemia franciscana on weight and length of the shortfin silverside Chirostoma humboldtianum , and PCR DGGE characterization of its intestinal bacterial community.
Lat Am J Aquat Res 45 , — Valdenegro-Vega, V. Culturable microbiota of ranched southern bluefin tuna Thunnus maccoyii Castelnau. Parris, D. Whole gut microbiome composition of damselfish and cardinalfish before and after reef settlement. PeerJ 4 , e Legrand, T. The inner workings of the outer surface: Skin and gill microbiota as indicators of changing gut health in Yellowtail Kingfish.
Front Microbiol 8 , 1—17 Baca, O. Q fever and Coxiella burnetii: a model for host-parasite interactions. Microbiol Rev 47 , — Tan, C. Dis Aquat Organ 41 , — Tetlock, A. Changes in the gut microbiome of the sea lamprey during metamorphosis. Appl Environ Microb 78 , — Hara, A. Alcanivorax which prevails in oil-contaminated seawater exhibits broad substrate specificity for alkane degradation.
Environ Microbiol 5 , — Da Cunha, C. Oil biodegradation by Bacillus strains isolated from the rock of an oil reservoir located in a deep-water production basin in Brazil. Appl Microbiol Biotechnol 73 , — El Naggar, A. Bioremediation of paraffinic and polynuclear aromatic hydrocarbons using laser irradiated Bacillus amyloliquefaciens. J Am Sci 6 , — Ibacache-Quiroga, C. The hydrocarbon-degrading marine bacterium Cobetia sp. Microb Biotechnol 6 , — Ben Ayed, H. Enhancement of solubilization and biodegradation of diesel oil by biosurfactant from Bacillus amyloliquefaciens An6.
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Int Biodeterior Biodegrad 99 , 8—14 Lauzon, H. Preventive measures in aquaculture isolation, application and effects of probiotics on Atlantic cod Gadus morhu a L. Sciences-New York, McIntosh, D. Culture-independent characterization of the bacterial populations associated with cod Gadus morhua L. Aquaculture , 42—50 Yoon, J. Kangiella koreensis gen. Int J Syst Evol Microbiol 54 , — Heylen, K. Cultivation of denitrifying bacteria: Optimization of isolation conditions and diversity study. Liu, C. Denitrifying sulfide removal process on high-salinity wastewaters in the presence of Halomonas sp.
Appl Microbiol Biotechnol , — Li, T. Microb Ecol 74 , — Tran, N. Starvation influences the microbiota assembly and expression of immunity-related genes in the intestine of grass carp Ctenopharyngodon idellus. Wadhams, G. Making sense of it all: Bacterial chemotaxis. Nat Rev Mol Cell Biol 5 , — Komarnisky, L. Sulfur: Its clinical and toxicologic aspects. Nutrition 19 , 54—61 Svenson, A. Toxicity of elemental sulfur in sediments. Environ Toxicol Water Qual 13 , — Smith, L. Effects of hydrogen sulfide on fish eggs and fry.
Water Res 6 , — Reiffenstein, R. Toxicology of hydrogen sulfide. Annu Rev Pharmacol Toxicol 32 , — Bucheli, T. Induction of cytochrome P as a biomarker for environmental contamination in aquatic ecosystems. Crit Rev Environ Sci Technol 25 , — Biochemical markers of aquatic environment contamination - Cytochrome P in fish.