Dr David Francis

STAFF PROFILE

Position

Senior Lecturer In Aquaculture Nutrition

Faculty

Faculty of Sci Eng & Built Env

Department

School of Life & Env. Sciences

Campus

Geelong Waurn Ponds Campus

Qualifications

Doctor of Philosophy, Deakin University, 2008
Bachelor of Environmental Science, Deakin University, 2003
Bachelor of Science (Fisheries Management & Aquaculture), Deakin University, 2001

Contact

d.francis@deakin.edu.au
+61 3 556 33083

Biography

Dr David Francis has a BSc (Hons) in Fisheries Management and Aquaculture and a PhD in Aquaculture Nutrition.  He has held various research and teaching positions and joined the School of Life and Environmental Sciences in 2015 as a Senior Lecture in Aquaculture Nutrition.

David's research interests span protein, lipid and carbohydrate nutrition, placing a particular focus on sustainable aquafeed development, nutritional biomarkers of organism health, and the establishment of new aquaculture species.  David's contributions to aquaculture have been recognised by way of international awards and fellowships, where his work has ultimately assisted in the sustainable expansion of the aquaculture industry towards the production of fish and seafood for a growing global population.

Read more on David's profile

Career highlights

2015 - Present: Senior Lecturer in Aquaculture Nutrition, Deakin University

2011 - 2015: Research Scientist, Australian Institute of Marine Science, QLD, Australia

2009 - 2011: Lecturer, Deakin University

2007 - 2009: Research Fellow, Deakin University

Research interests

Nutrition (larval, crustacean and finfish)

Sustainable aquaculture production

Nutritional biomarkers of organism health and resilience

Lipid metabolism (lipid classes and fatty acids)

Nutritional ecology

New aquaculture species

Novel ingredient identification and testing

Units taught

SLE161 - Aquaculture and the Environment

Knowledge areas

Aquaculture

Fish nutrition

Crustacean nutrition

Larval biology

Nutritional biomarkers

Fatty acids

Aquaculture sustainability

Professional activities

Editorial board of 'Fishes'

Reviewer for >10 international journals (Aquaculture, Aquaculture Nutrition, Aquaculture Research, Journal of Agriculture and Food Chemistry, British Journal of Nutrition, Journal of Nutrition, Food Chemistry, Journal of Food Science, Reviews in Aquaculture, PLoS one, Journal of Food Science etc)

Awards

2012: Australian Academy of Science - Travel Fellowship

2012: Australasian Aquaculture Award

Publications

Filter by

2018

Fatty acids and beyond: fillet nutritional characterisation of rainbow trout (Oncorhynchus mykiss) fed different dietary oil sources

G Turchini, K Hermon, D Francis

(2018), Vol. 491, pp. 391-397, Aquaculture, Amsterdam, The Netherlands, C1

journal

Intra-colonial diversity in the scleractinian coral, Acropora millepora: identifying the nutritional gradients underlying physiological integration and compartmentalised functioning

J Conlan, C Humphrey, A Severati, D Francis

(2018), pp. 1-20, PeerJ, London, Eng., C1

journal

Elucidating the sponge stress response; lipids and fatty acids can facilitate survival under future climate scenarios

H Bennett, J Bell, S Davy, N Webster, D Francis

(2018), Vol. 24, pp. 3130-3144, Global change biology, Chichester, Eng., C1

journal

Genes for de novo biosynthesis of omega-3 polyunsaturated fatty acids are widespread in animals

N Kabeya, M Fonseca, D Ferrier, J Navarro, L Bay, D Francis, D Tocher, L Castro, Ó Monroig

(2018), Vol. 4, pp. 1-8, Science advances, Washington, D.C., C1

journal

Barrens of gold: gonad conditioning of an overabundant sea urchin

Cassandra Pert, Stephen Swearer, Symon Dworjanyn, Nina Kriegisch, Giovanni Turchini, David Francis, Tim Dempster

(2018), Vol. 10, pp. 345-361, Aquaculture environment interactions, Oldendorf, Germany, C1

journal
2017

Retro-engineering the protein sparing effect to preserve n-3 LC-PUFA from catabolism and optimise fish oil utilisation: a preliminary case study on juvenile Atlantic salmon

D Francis, G Turchini

(2017), Vol. 468, pp. 184-192, Aquaculture, Amsterdam, The Netherlands, C1

journal

A n-3 PUFA depletion applied to rainbow trout fry (Oncorhynchus mykiss) does not modulate its subsequent lipid bioconversion capacity

J Mellery, J Brel, J Dort, F Geay, P Kestemont, D Francis, Y Larondelle, X Rollin

(2017), Vol. 117, pp. 187-199, British journal of nutrition, Cambridge, Eng., C1

journal

The nutritional value of live and concentrated micro-algae for early juveniles of sandfish, Holothuria scabra

N Duy, D Francis, P Southgate

(2017), Vol. 473, pp. 97-104, Aquaculture, Amsterdam, The Netherlands, C1

journal

Selective feeding and microalgal consumption rates by crown-of-thorns seastar (Acanthaster cf. solaris) larvae

C Mellin, C Lugrin, K Okaji, D Francis, S Uthicke

(2017), Vol. 9, pp. 1-16, Diversity, Basel, Switzerland, C1

journal

Variation in the health and biochemical condition of the coral Acropora tenuis along two water quality gradients on the Great Barrier Reef, Australia

M Rocker, D Francis, K Fabricius, B Willis, L Bay

(2017), Vol. 119, pp. 106-119, Marine pollution bulletin, Amsterdam, The Netherlands, C1

journal

A comparison of two common sample preparation techniques for lipid and fatty acid analysis in three different coral morphotypes reveals quantitative and qualitative differences

J Conlan, M Rocker, D Francis

(2017), Vol. 5, pp. 1-21, PeerJ, San Diego, Calif., C1

journal

Biochemical composition of marine monogenean parasite eggs

A Brazenor, D Francis, K Hutson, A Carton

(2017), Vol. 218, pp. 1-3, Molecular and biochemical parasitology, Amsterdam, The Netherlands, C1

journal

Influence of different feeding regimes on the survival, growth, and biochemical composition of Acropora coral recruits

J Conlan, C Humphrey, A Severati, D Francis

(2017), Vol. 12, pp. 1-20, PLoS one, San Francisco, Calif., C1

journal
2016

Food preferences of juvenile corallivorous crown-of-thorns (Acanthaster planci) sea stars

C Johansson, D Francis, S Uthicke

(2016), Vol. 163, pp. 1-7, Marine Biology: international journal on life in oceans and coastal waters, Berlin, Germany, C1

journal

Biochemical responses to ocean acidification contrast between tropical corals with high and low abundances at volcanic carbon dioxide seeps

J Strahl, D Francis, J Doyle, C Humphrey, K Fabricius

(2016), Vol. 73, pp. 897-909, ICES Journal of marine science: journal du conseil, Oxford, Eng., C1

journal

Use of micro-algae concentrates for hatchery culture of sandfish, Holothuria scabra

N Duy, D Francis, I Pirozzi, P Southgate

(2016), Vol. 464, pp. 145-152, Aquaculture, Amsterdam, The Netherlands, C1

journal

Development of hyaline spheres in late auriculariae of sandfish, Holothuria scabra : is it a reliable indicator of subsequent performance?

N Duy, D Francis, P Southgate

(2016), Vol. 465, pp. 144-151, Aquaculture, Amsterdam, The Netherlands, C1

journal
2015

The effects of pre-digested protein sources on the performance of early-mid stage Panulirus ornatus phyllosoma

S Gamble, I Pirozzi, M Hall, C Zeng, J Conlan, D Francis

(2015), Vol. 440, pp. 17-24, Aquaculture, Amsterdam, The Netherlands, C1

journal

Climate change as an unexpected co-factor promoting coral eating seastar (Acanthaster planci) outbreaks

S Uthicke, M Logan, M Liddy, D Francis, N Hardy, M Lamare

(2015), Vol. 5, pp. 1-8, Scientific reports, London, Eng., C1-1

journal

The orexinergic system in rainbow trout Oncorhynchus mykiss and its regulation by dietary lipids

E Varricchio, F Russo, E Coccia, G Turchini, D Francis, M Paolucci

(2015), Vol. 78, pp. 707-714, Microscopy research and technique, Weinheim, Germany, C1

journal
2014

n-3 LC-PUFA deposition efficiency and appetite regulating hormones are modulated by the dietary lipid source during rainbow trout grow-out and finishing periods

D Francis, T Thanuthong, S Senadheera, M Paolucci, E Coccia, S De Silva, G Turchini

(2014), Vol. 40, pp. 577-593, Fish physiology and biochemistry, Berlin, Germany, C1

journal

Changes in the nutritional composition of captive early-mid stage Panulirus ornatus phyllosoma over ecdysis and larval development

J Conlan, P Jones, G Turchini, M Hall, D Francis

(2014), Vol. 434, pp. 159-170, Aquaculture, Amsterdam, Netherlands, C1

journal

Fatty acid-specific alterations in leptin, PPAR?, and CPT-1 gene expression in the rainbow trout

E Coccia, E Varricchio, P Vito, G Turchini, D Francis, M Paolucci

(2014), Vol. 49, pp. 1033-1046, Lipids, Heidelberg , Germany, C1

journal

Palinurid lobster aquaculture: nutritional progress and considerations for successful larval rearing

David Francis, Matt Salmon, Matt Kenway, Michael Hall

(2014), Vol. 6, pp. 180-203, Reviews in aquaculture, London, Eng., C1-1

journal
2013

Monola oil versus canola oil as a fish oil replacer in rainbow trout feeds: effects on growth, fatty acid metabolism and final eating quality

G Turchini, V Moretti, K Hermon, F Caprino, M Busetto, F Bellagamba, T Rankin, R Keast, D Francis

(2013), Vol. 141, pp. 1335-1344, Food chemistry, Amsterdam, Netherlands, C1

journal

Seven fish oil substitutes over a rainbow trout grow-out cycle: I) Effects on performance and fatty acid metabolism

G Turchini, K Hermon, B Cleveland, J Emery, T Rankin, D Francis

(2013), Vol. 19, pp. 82-94, Aquaculture nutrition, London, England, C1

journal

Seven fish oil substitutes over a rainbow trout grow-out cycle: II) Effects on final eating quality and a tentative estimation of feed-related production costs

G Turchini, K Hermon, V Moretti, F Caprino, M Busetto, F Bellagamba, T Rankin, D Francis

(2013), Vol. 19, pp. 95-109, Aquaculture nutrition, London, England, C1

journal

Palinurid lobster larval rearing for closed-cycle hatchery production

M Hall, M Kenway, M Salmon, D Francis, E Goulden, L Hoj

(2013), pp. 289-338, Advances in aquaculture hatchery technology, Oxford, Eng., B1-1

chapter
2012

Effects of dietary iron supplementation on growth performance, fatty acid composition and fatty acid metabolism in rainbow trout (Oncorhynchus mykiss) fed vegetable oil based diets

S Senadheera, G Turchini, T Thanuthong, D Francis

(2012), Vol. 342-343, pp. 80-88, Aquaculture, Amsterdam, The Netherlands, C1

journal

Effects of Dietary Vitamin B6 Supplementation on Fillet Fatty Acid Composition and Fatty Acid Metabolism of Rainbow Trout Fed Vegetable Oil Based Diets

S Senadheera, G Turchini, T Thanuthong, D Francis

(2012), Vol. 60, pp. 2343-2353, Journal of Agricultural and Food Chemistry, Washington, United States, C1

journal

Short-term food deprivation before a fish oil finishing strategy improves the deposition of n-3 LC-PUFA, but not the washing-out of C18 PUFA in rainbow trout

T Thanuthong, D Francis, S Senadheera, P Jones, G Turchini

(2012), Vol. 18, pp. 441-456, Aquaculture nutrition, Oxford, England, C1

journal

Immunohistochemical and immunological detection of ghrelin and leptin in rainbow trout Oncorhynchus mykiss and murray cod Maccullochella peelii peelii as affected by different dietary fatty acids

E Varricchio, F Russo, E Coccia, G Turchini, D Francis, P De Girolamo, M Paolucci

(2012), Vol. 75, pp. 771-780, Microscopy research and technique, Hoboken, N. J., C1

journal

Echium oil provides no benefit over linseed oil for (n-3) long-chain PUFA biosynthesis in rainbow trout

B Cleveland, D Francis, G Turchini

(2012), Vol. 142, pp. 1449-1455, Journal of nutrition, Bethesda, Md., C1

journal

Nutrition

S De Silva, G Turchini, D Francis

(2012), pp. 164-187, Aquaculture : farming aquatic animals and plants, Chichester, England, B1

chapter
2011

Fish oil in aquaculture : in retrospect

S De Silva, D Francis, A Tacon

(2011), pp. 1-20, Fish oil replacement and alternative lipid sources in aquaculture feeds, Boca Raton, Flo., B1

chapter

n-3 Polyunsaturated fatty acid-rich vegetable oils and blends

D Tocher, D Francis, K Coupland

(2011), pp. 209-244, Fish oil replacement and alternative lipid sources in aquaculture feeds, Boca Raton, Flo., B1

chapter

Transforming salmonid aquaculture from a consumer to a producer of long chain omega-3 fatty acids

G Turchini, D Francis, R Keast, A Sinclair

(2011), Vol. 124, pp. 609-614, Food chemistry, Amsterdam, The Netherlands, C1

journal

Assessment of oxidatively generated DNA damage in rainbow trout (Oncorhynchus mykiss) fed with different lipid sources

F Bellagamba, F Caprino, M Busetto, D Francis, M Vasconi, G Turchini, V Moretti

(2011), Vol. 317, pp. 124-132, Aquaculture, Amsterdam, Netherlands, C1

journal

Effects of Dietary [alpha]-linolenic acid (18:3n-3)/linoleic acid (18:2n-6) ratio on fatty acid metabolism in Murray cod (Maccullochella peelii peelii)

S Senadheera, G Turchini, T Thanuthong, D Francis

(2011), Vol. 59, pp. 1020-1030, Journal of agricultural and food chemistry, Washington, D. C., C1

journal

Fish oil replacement in rainbow trout diets and total dietary PUFA content : I) effects on feed efficiency, fat deposition and the efficiency of a finishing strategy

T Thanuthong, D Francis, S Senadheera, P Jones, G Turchini

(2011), Vol. 320, pp. 82-90, Aquaculture, Amsterdam, Netherlands, C1

journal

Fish oil replacement with different vegetable oils in Murray cod : evidence of an 'omega-3 sparing effect' by other dietary fatty acids

G Turchini, D Francis, S Senadheera, T Thanuthong, S De Silva

(2011), Vol. 315, pp. 250-259, Aquaculture, Amsterdam, Netherlands, C1

journal

LC-PUFA biosynthesis in rainbow trout is substrate limited : use of the whole body fatty acid balance method and different 18:3n-3/18:2n-6 ratios

T Thanuthong, D Francis, S Senadheera, P Jones, G Turchini

(2011), Vol. 46, pp. 1111-1127, Lipids, Heidelberg, Germany, C1

journal

The whole-body fatty acid balance method : examples of its potential for feed efficiency and product quality optimisation in fish and poultry

G Turchini, S De Smet, D Francis

(2011), pp. 69-76, Recent advances in animal nutrition - Australia, v.18, Armidale, N. S. W., E1

conference

Fish oil replacement in rainbow trout diets and total dietary PUFA content : II) Effects on fatty acid metabolism and in vivo fatty acid bioconversion

T Thanuthong, D Francis, E Manickam, S Senadheera, D Cameron-Smith, G Turchini

(2011), Vol. 322-323, pp. 99-108, Aquaculture, Amsterdam, The Netherlands, C1

journal
2010

Can dietary lipid source circadian alternation improve omega-3 deposition in rainbow trout?

T Brown, D Francis, G Turchini

(2010), Vol. 300, pp. 148-155, Aquaculture, Amsterdam, The Netherlands, C1

journal

Effects of dietary ?-linolenic acid (18:3n-3)/linoleic acid (18:2n-6) ratio on growth performance, fillet fatty acid profile and finishing efficiency in Murray cod

S Senadheera, G Turchini, T Thanuthong, D Francis

(2010), Vol. 309, pp. 222-230, Aquaculture, Amsterdam, Netherlands, C1

journal
2009

Effects of alternate phases of fish oil and vegetable oil-based diets in Murray cod

D Francis, G Turchini, B Smith, S Ryan, S De Silva

(2009), Vol. 40, pp. 1123-1134, Aquaculture research, Oxford, England, C1

journal

Fatty acid metabolism (desaturation, elongation and ?-oxidation) in rainbow trout fed fish oil- or linseed oil-based diets

G Turchini, D Francis

(2009), Vol. 102, pp. 69-91, British journal of nutrition, [Cambridge, England], C1

journal

Apparent in vivo ?-6 desaturase activity, efficiency, and affinity are affected by total dietary C18 PUFA in the freshwater fish Murray cod

D Francis, D Peters, G Turchini

(2009), Vol. 57, pp. 4381-4390, Journal of agricultural and food chemistry, United States, C1

journal
2007

Dietary lipid source modulates in vivo fatty acid metabolism in the freshwater fish, Murray cod (Maccullochella peelii peelii)

D Francis, G Turchini, P Jones, S De Silva

(2007), Vol. 55, pp. 1582-1591, Journal of agricultural and food chemistry, Washington, DC, C1

journal

Effects of fish oil substitution with a mix blend vegetable oil on nutrient digestibility in Murray cod, Maccullochella peelii peelii

D Francis, G Turchini, P Jones, S De Silva

(2007), Vol. 269, pp. 447-455, Aquaculture, Amsterdam, Netherlands, C1

journal

Finishing diets stimulate compensatory growth: results of a study on Murray cod, Maccullochella peelii peelii

G Turchini, D Francis, S De Silva

(2007), Vol. 13, pp. 351-360, Aquaculture nutrition, Oxford, England, C1

journal

Growth performance, feed efficiency and fatty acid composition of juvenile Murray cod, Maccullochella peelii peelii, fed graded levels of canola and linseed oil

D Francis, G Turchini, P Jones, S De Silva

(2007), Vol. 13, pp. 335-350, Aquaculture nutrition, Oxford, England, C1

journal

A whole body, in vivo, fatty A\acid balance method to quantify PUFA metabolism (desaturation, elongation and beta-oxidation)

G Turchini, D Francis, S De Silva

(2007), Vol. 42, pp. 1065-1071, Lipids, Berlin , Germany, C1

journal
2006

Fatty acid metabolism in the freshwater fish Murray cod (Maccullochella peelii peelii) deduced by the whole-body fatty acid balance method

G Turchini, D Francis, S De Silva

(2006), Vol. 144, pp. 110-118, Comparative biochemistry and physiology. B, Biochemistry & molecular biology, New York, N.Y., C1

journal

Effects of dietary oil source on growth and fillet fatty Acid composition of Murray cod, Maccullochella peelii peelii

D Francis, G Turchini, P Jones, S De Silva

(2006), Vol. 253, pp. 547-556, Aquaculture, Amsterdam, The Netherlands, C1

journal

Modification of tissue fatty acid composition in Murray cod (Maccullochella peelii peelii, Mitchell) resulting from a shift from vegetable oil diets to a fish oil diet.

G Turchini, D Francis, S De Silva

(2006), Vol. 37, pp. 570-585, Aquaculture research, Oxford, England, C1

journal

Funded Projects at Deakin

Australian Competitive Grants

Enhancing the flavour of farmed fish through dietary innovation

Dr David Francis, Prof Giovanni Turchini, Rocky De Nys, Dr Damien Callahan, A/Prof Xavier Conlan, Prof Russell Keast, Vittorio Moretti, Dr Richard Smullen, Susan Poole

ARC Linkage - Projects

  • 2018: $50,706

Elucidating the nutritional requirements of farmed hybrid abalone

Dr David Francis, Prof John Donald, Prof Giovanni Turchini

FRDC Grant - Research - Fisheries Research & Development Corporation

  • 2018: $159,544

Other Public Sector Funding

Aquaculture technologies for recycled water bioremediation

Dr Paul Jones, Mr Bob Collins, Prof Giovanni Turchini, Dr David Francis

  • 2011: $28,527
  • 2010: $51,495
  • 2009: $25,000

Lipid class analysis of Great Barrier Reef corals and sponges

Dr David Francis

  • 2016: $5,272

Evaluation of nutritional quality in farmed yellowtail kingfish

Dr David Francis

  • 2017: $4,784

Evaluation of nutritional quality in farmed yellowtail kingfish

Dr David Francis

  • 2018: $7,174

Feasibility of a breeding program for the giant triton sea snail (Charonia tritonis)

Dr David Francis

  • 2018: $4,550

Industry and Other Funding

Monola in aquafeed

Prof Giovanni Turchini, Dr David Francis

  • 2012: $44,699
  • 2011: $22,122
  • 2010: $22,122

Deakin Ridley Aquaculture Research Initiative

Prof Giovanni Turchini, Dr David Francis

  • 2018: $190,000
  • 2017: $287,734
  • 2016: $150,000
  • 2015: $150,000

Nutritional assessment of commercially extruded aquafeeds

Dr David Francis, Prof Giovanni Turchini

  • 2017: $15,620

Environmental Water Knowledge and Research

Dr David Francis, A/Prof Rebecca Lester

  • 2018: $25,000
  • 2017: $10,100

Supervisions

Principal Supervisor
2018

Jessica Ann Conlan

Thesis entitled: Nutritional Health of Captive Corals

Doctor of Philosophy (Life & Env), School of Life and Environmental Sciences

Associate Supervisor
2009

Giorgio Palmeri

Thesis entitled: Nutritional and Organoleptic Quality in Intensively Farmed Murray Cod

Doctor of Philosophy (Life & Env), School of Life and Environmental Sciences