Dr Chaoshu Zeng
Senior Lecturer
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BSc, MSc in Marine Biology, Xiamen University, China PhD in Marine Biology, University of Wales, Bangor, UK Japan Science and Technology Agency Postdoctoral Fellow, Seikai National Fisheries Research Institute, Nagasaki, Japan. |
Research Interests
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Development of culture techniques for commercially important crustaceans (particularly larval and juvenile stages)
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Crustacean nutrition, digestive physiology and formulated feed development
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Toxicology of nutrients to commercially important crustaceans
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Ecophysiology and behaviour of marine larvae and juveniles; biological rhythms
My research interests include the investigation and development of aquaculture techniques, and toxicology, ecophysiology and behaviour of aquatic organisms, particularly larval and juvenile crustaceans.
My current research focus is on the development of aquaculture techniques, especially hatchery and nursery techniques, for the mud crab Scylla serrata, theblue swimmer crab Portunus pelagicus, the Australian indigenous giant freshwater prawn Macrobrachium rosenbergii and various ornamental species. Ongoing research in my laboratory include broodstock nutrition and larval quality, larval and juvenile nutrition, digestive physiology and formulated feed development as well as the optimisation of culture conditions for larvae and juveniles. Development of intensive culture and storage techniques for tropical copepods (as prey for larvae) has also commenced in my laboratory.
Another area of research that I am pursuing is the behaviour, toxicology and physiological ecology of marine larvae and juveniles in general, and their potential applications in aquaculture. For example, a better understanding of causative and peripheral factors that affect larval foraging and prey selection, feeding rhythms, aggressive and cannibalistic behaviour, metamorphosis and settlement will have significant implications for development of sound aquaculture techniques. Similarly, quantifying acute and chronic toxic effects of various pollutants, such as nutrients in effluent water, to cultured species and understanding their underling physiological mechanisms will help reduce risks and improve productivity in aquaculture.
Additionally, in collaboration with Dr. Jegatheesan, School of Engineering, my research also involves aquaculture effluent water treatment techniques for recirculating.
Recent and Current Projects Include
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Development of aquaculture techniques for the mud crab Scylla serrata, theblue swimmer crab Portunus pelagicus and Australian indigenous giant freshwater prawn Macrobrachium rosenbergii
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Crustacean nutrition and formulated diet development
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Toxicology of nutrients to commercially important crustaceans
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Captive breeding of ornamental crustaceans and finfish
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Aquaculture effluent water treatment in recirculating systems through advanced filtration techniques and Aquaponics
Recent and Currently Supervised Projects
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Lipid nutrition and development of microbound diets for mud crab Scylla serrata larvae.
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Quantitative studies on lipid and fatty acid requirements of juvenile blue swimmer crab Portunus pelagicus.
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Reproductive biology, broodstock nutrition and larval quality of the blue swimmer crab
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Comparative studies on ontogeny of larval digestive capacity of the mud crab Scylla serrata and the spiny lobster Panulirus ornatus.
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Toxicity of nutrients and their underling physiological mechanisms on juvenile blue swimmer crab
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Assessment of aquaculture potential of an Australian strain giant freshwater prawn Macrobrachium rosenbergii
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Development of culture and storage techniques for tropical copepods
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Aquaculture effluent water treatment in recirculating systems through advanced filtration techniques
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Studies on aspects of the reproductive biology and larval rearing of the ornamental cleaner shrimp
Future PhD Directions
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Crustacean larval and juvenile nutrition, digestive physiology and formulated diet development
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Toxicology of nutrients/heavy mentals to commercially important species
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Captive breeding of ornamental reef fish
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Feeding behaviour, feeding rhythms and optimising feeding regimes for crustacean larvae
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Agnostic behaviour, social hierarchy formation and cannibalism in crustaceans
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Water treatment in recirculating aquaculture systems
Teaching
Subject coordinator and lecturer for:
Lecturer in:
Selected Publications
Milione, M., Zeng, C. (in press) The effects of temperature and salinity on population growth and egg hatching success of the tropical calanoid copepod, Acartia sinjiensis . Aquaculture .
Wu, X., Cheng, Y., Sui, L., Zeng, C., Southgate, P., Yang, X. (2007) Effect of dietary supplementation of phospholipids and highly unsaturated fatty acids on reproductive performance and offspring quality of female Chinese mitten crabs, Eriocheir sinensis . Aquaculture , 273, 602-613.
Milione, M., Zeng, C. (2007) The effects of algal diets on population growth and egg hatching success o f the tropical calanoid copepod, Acartia sinjiensis . Aquaculture , 273, 656-664.
Romano, N., Zeng, C. (2007) Effects of potassium on nitrate mediated alterations of osmoregulation in marine crabs. Aquatic Toxicology, 85, 202-208.
Zeng, C. (2007) Induced o ut-of-season spawning in the mud crab, Scylla paramamonsian, and effects of temperature on embryo development. Aquaculture Research, 38, 1478-1485.
Nurdiani, R., Zeng, C. (2007) Effects of temperature and salinity on the survival and development of mud cr ab Scylla serrata , larvae. Aquaculture Research, 38, 1529-1538.
Genodepa, J., Zeng, C., Southgate, P.C. (2007) Influence of binder type on leaching rate and ingestion of microbound diets by mud crab, Scylla serrata, larvae. Aquaculture Research, 38, 1486-1494.
Holme, M-H., Southgate, P.C., Zeng, C. (2007) An assessment ofdietary lecithin and cholesterol requirements for mud crab, Scylla serrata, megalopa using semi-purified microbound diets. Aquaculture Nutrition, 13, 413-423.
Romano, N., Zeng, C. (2007) Acute toxicity of sodium nitrate, potassium nitrate and potassium chloride and their effects on the haemolymph composition and gill structure of early juvenile blue swimmer crab, Portunus pelagicus. Environmental Toxicology and Chemistry, 26,1955-1962.
Romano, N., Zeng, C. (2007) Acute toxicity of ammonia and its effects on the haemolymph osmolality, ammonia-N, Ph and ionic composition of early juvenile mud crab, Scylla serrata (Forskal). Comparative Biochemistry and Physiology, Part A, 148, 278-285.
Steicke, C., Jegatheesan, V., Zeng, C. (2007) Mechanical mode floating medium filters for recirculating systems in aquaculture for higher solids retention and lower freshwater usage. Bioresource Technology, 98, 3375-3383.
Holme, M-H., Southgate, P.C., Zeng, C. (2007) Survival, development and growth response of mud crab, Scylla serrata megalopae, fed semi-purified diets containing various fish oil:corn oil ratios. Aquaculture, 269, 427-435.
Jegatheesan, V., Zeng C., Shu, L., Manicom, C., Steicke, C. (2007) Technological advances in aquaculture farms for minimal effluent discharge to oceans. Journal of Cleaner Production 15, 1525-1544.
Romano, N., Zeng, C. (2007) Ontogenetic changes in tolerance to acute ammonia exposure and associated gill histological alterations during early juvenile development of the blue swimmer crab, Portunus pelagicus. Aquaculture266, 246-254.
Holme, M-H., Zeng, C., Southgate, P.C., (2006)Dietary supplemented cholesterol requirement of megalopae of the mud crab, Scylla serrata, fed semi-purified diets. Aquaculture 261, 1328-1334.
Romano, N., Zeng, C. (2006). The effects of salinity on the survival, growth and haemolymph osmolality of early juvenile blue swimmer crabs, Portunus pelagicus. Aquaculture 260, 151-162.
Holme, M-H., Zeng, C., Southgate, P.C. (2006). Use of microbound diets for larval culture of the mud crab Scylla serrata. Aquaculture, 257, 482-490.
Rabbani, A. G., Zeng, C. (2005). Effects of background colour of culture vessels on the larval survival and development of the mud crab Scylla serrata (Forskal). Aquaculture Research 36, 1112-1119.
Zeng, C., Li, S-J., Zeng, H., (2004) Occurrence of additional Zoea-VI larvae in the mud crab, Scylla paramamosain (Estampador), reared in the laboratory. Hydrobiologia 529, 49-58.
Genodepa, J., Zeng, C., Southgate, P.C. (2004) Preliminary assessment of a microbound diet as an Artemia replacement for mud crab, Scylla serrata, megalopa. Aquaculture 236, 497-509.
Genodepa, J., Southgate, P.C., Zeng, C. (2004) Diet particle size preference and optimal ration for mud crab, Scylla serrata, larvae fed microbound diets. Aquaculture 230, 493-505.
Zeng, C., Abello, P., Naylor, E. (1999) Tidal and semilunar moulting rhythms in juvenile Carcinus maenas: implications for adaptation to a high intertidal habitat. Marine Ecology Progress Series 191, 257-266.
Zeng, C., Naylor, E. (1996) Endogenous tidal rhythms of vertical migration in field collected zoea larvae of Carcinus maenas: implications for offshore dispersal. Marine Ecology Progress Series 132, 71-82.
