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Sam Dupont - Research Interest

Senior post doctoral fellow (Department of Biological and Environmental Sciences - Kristineberg) and coordinator of the Ocean Acidification Infrastructure Facility – Kristineberg.

Marine and evolutionary biologist, I try to be a specialist in my field and a generalist in my research interests. I am convinced that pluri-disciplinarity approach of the research is the key factor leading to creativity in science.

Impact of Ocean Acidification on Marine Organisms

Ecological Genomics of Regeneration in Echinoderms

Biology and Evolution of Echinoderms

Data analysis and modeling

Development of new scientific tools based on Internet technologies

Impact of Ocean Acidification on Marine Organisms

The world’s oceans are slowly becoming more acidic. In the last 150 years, the pH of the oceans has dropped by ~ 0.1 units. Estimates of future levels of atmospheric CO2 vary, but modelling shows that the pH in the ocean is likely to fall by 0.2 – 0.4 pH units by the year 2100.

My project aims to study the quantitative (survival, growth, etc.) and qualitative (skeleton formation, phenotype, etc.) impacts of acidification (using a realistic near-future predicted range, with a low variation of 0.2-0.4 units) on the long term development of key marine invertebrate organisms.

Related publications

Dupont S, Havenhand J, Thorndyke W, Peck L & Thorndyke MC. (2008) CO2-driven ocean acidification radically affect larval survival and development in the brittlestar Ophiothrix fragilis. Accepted for Marine Ecology Progress Series

Andersson P, Håkansson B, Håkansson J, Sahlsten E, Havenhand J, Thorndyke M & Dupont S. (2008) Marine Acidification – On effects and monitoring of marine acidification in the seas surrounding Sweden. The Swedish National Environmental Protection Agency - Oceanography No 92. Download in pdf.

Ecological Genomics of Regeneration in Echinoderms

I am involved in a program aiming to investigate gene expression during arm regeneration in echinoderms and consequences on individual fitness and population structure.

More information: Kristineberg Marine Genomics.

Related publications

Biressi A, Zou T, Dupont S, Dahlberg C, Di Benedetto C, Bonasoro F, Thorndyke M & Candia Carnevali MD (2008) Wound-healing and arm regeneration in two brittlestar species (Echinodermata: Ophiuroidea): comparative morphogenesis and histogenesis. Zoomorphology (submitted).

Holm K, Dupont S, Sköld H, Stenius A, Thorndyke M & Henroth B
(2008) Induced cell proliferation in putative haematopoietic tissues of the sea star, Asterias rubens (L.) Journal of Experimental Biology (in press).

Dupont S & Thorndyke MC (2007) Bridging the regeneration gap : insights from echinoderm models. Nature Review Genetics, correspondence 8 : doi:10.1038/nrg1923-c1.

Dupont S, Obst M, Wilson K, Sköld H, Nakano H & Thorndyke MC
(2007) Marine Ecological Genomics – When Genomics meet Marine Ecology, Marine Ecology Progress Series 332 : 257-273. Download in pdf.

Clark MS, Dupont S, Rosetti H, Burns G, Thorndyke MC & Peck LS (2007) Delayed arm regeneration in the Antarctic brittle star (Ophionotus victoriae). Aquatic Biology. 1: 45-53. Download in pdf.

Dupont S & Thorndyke MC
(2006) Growth or differentiation? Adaptative regeneration in the brittlestar Amphiura filiformis, Journal of Experimental Biology 209: 3873-3881. Download in pdf.

Bruggeman O, Dupont S & Mallefet J (2003) Bioluminescence in the ophiuroid Amphiura filiformis (O.F. Müller, 1776): temperature effects. In Féral JP & David B (eds). Echinoderm Research 2001. Balkema: Lisse. pp. 177-180.

Thorndyke M, Patruno M, Dewael Y, Dupont S & Mallefet J (2003) Regeneration in the ophiuroid Amphiura filiformis: cell biology, physiology and luminescence. In Féral JP & David B (eds). Echinoderm Research 2001. Balkema: Lisse. pp. 193-200.

Dupont S, Vangeluwe D & Mallefet J (2001) Arm regeneration in the luminous ophiuroid Amphipholis squamata: a functional approach. In Barker M. (ed). Echinoderm 2000. Balkema: Lisse. pp. 255-259.

Mallefet J, Dewael Y, Dupont S, Patruno M & Thorndyke M
(2001) Functional approach of regeneration in Barker M. (ed). Echinoderm 2000. Balkema: Lisse. pp. 301-304.

Biology and Evolution of Echinoderms

I am studying Echinoderm biology in an evolutionary perspective. For example, evolution of nervous system development, regeneration capabilities, bioluminescence. For my phD, I studied microevolution in the brittlestar Amphipholis squamata.

Related publications

Rosenberg R, Dupont S, Lundvalv T, Nilsson Skold H, Norkko A, Roth J, Stach T & Thorndyke M (2005). Biology of the basket star Gorgonocephalus caputmedusae (L.) Marine Biology 148: 43-50.

Dupont S, Mallefet J & Vanderlinden C (2004). Effect of beta-adrenergic antagonists on bioluminescence control in three species of brittlestars (Echinodermata: Ophiuroidea). Comparative Biochemistry and Physiology. C. Toxicology and Pharmacology 137(1): 59-66.

Dupont S (2003) Species concept, new technologies and biodiversity crisis : taxonomic status of the cosmopolitan ophiuroid Amphipholis squamata (Delle chiaje). In Celnikier LM & Trân Thanh Vân, J (eds) Proceeding of the XIIth Rencontres de Blois, Frontiers of life. Thê Gioi Publishers : Vietnam. pp. 83-87.

Fauville G, Dupont S & Mallefet J (2003). Bioluminescence in the brittle-star Amphipholis squamata: natural vs. experiment patterns of light emission. In Féral JP & David B (eds). Echinoderm Research 2001. Balkema: Lisse. pp. 189-192.

Dupont S & Mallefet J (2002) Abnormal forms in the brittle-star Amphipholis squamata: a field study. Journal of Marine Biology Ass. U.K. 82: 491-193.

Dupont S (2002). On the taxonomic status of the brittle-star Amphipholis squamata (Delle Chiaje, 1828). Bulletin de l’Institut Royal des Sciences Naturelles de Belgique 72-S: 105-108.

Dupont S, Salpietro L, Costanzo M-T & Mallefet J
(2002) Polychromatism and biogeography in the ophiuroid Amphipholis squamata (Delle Chiaje, 1828)(Echinodermata : Ophiuroidea) in the area of Messina (Sicily). Biogeographia XXIII: 193-199.

Dupont S, Mallefet J & Dewael Y (2001) Natural bioluminescence as a genetic marker for ophiuroid species. Belgian Journal of Zoology 131(2): 19-24.

Dupont S, Dumont F & Mallefet J (2001) Origin and consequences of aggregation on bioluminescence distribution in the brittle-star Amphipholis squamata. In Case, Herring, Robison, Haddock, Kricka & Stanley (eds.). Proceedings of the 11th Symposium on Bioluminescence and Chemiluminescence. World Scientific: London. pp. 47-50.

Dupont S, Mallefet J & Baret P (2001) Bioluminescence and genetic variability in Amphipholis squamata. In Case, Herring, Robison, Haddock, Kricka & Stanley (eds.). Proceedings of the 11th Symposium on Bioluminescence and Chemiluminescence. World Scientific: London. pp. 43-46.

Dupont S, Vandemeulebroecke G, Mallefet J, Costanzo M-T & Mallefet J (2001) Effect of habitat on intraspecific diversity of bioluminescence of the ophiuroid Amphipholis squamata. In Case, Herring, Robison, Haddock, Kricka & Stanley (eds.). Proceedings of the 11th Symposium on Bioluminescence and Chemiluminescence. World Scientific: London. pp. 51-54.

Féral J-P, Villard A-M., Dupont S & Mallefet J (2001) Morphological, physiological and genetic variability of the ophiuroid Amphipholis squamata (Delle Chiaje, 1828) from the lagoon system of Oliveri-Tindari (Sicily). In Barker M. (ed). Echinoderm 2000. Balkema: Lisse. pp. 261-266.

Dupont S & Mallefet J (2000) Luminous capabilities and life history traits of the polychromatic ophiuroid Amphipholis squamata in two isolated populations from Oliveri-Tindari lagoon system, Sicily. Hydrobiologia. 440 :137-144.

Dupont S, Chaufer S, Poulin E, Féral J-P & Mallefet J
(2000) Is there a link between morphological, physiological and genetic variability of the ophiuroid Amphipholis squamata ? Netherland Journal of Zoology 50(3) : 355-363.

Dupont S & Mallefet J (1999) Population dynamic of Amphipholis squamata (Echinodermata: Ophiuroidea) in Oliveri-Tindari's lagoon system (Sicily). In Candia-Carnevali, MD. & Bonasoro F. (eds). Echinoderm Research 1998. Balkema : Rotterdam. pp. 65-70.

Data analysis and modeling

I have developed expertise in the use of the SAS software. For this reason, I am involved in diverse research projects: taxonomy in various groups (insects, molluscs, fish, etc.), genetic psychiatry, psychobiology of personality, populations biology, etc.

Related publications

Krönström J, Dupont S, Mallefet J, Thorndyke MC & Holmgren S (2007) Involvment of nitric oxide in the control of bioluminescence in the northern krill, Meganyctiphanes norvegica. Journal of Experimental Biology 209: 3179-3187.

Stach T, Dupont S, Israelsson O, Fauville G, Nakano H & Thorndyke MC (2005). Nerve cells of Xenoturbella bocki (phylum uncertain) and Harrimania kupfferi (Enteropneusta) react positive with antibodies raised against echinoderm neuropeptides. Journal of Marine Biology Ass. U.K. 85(6): 1519-1524.

Dasnois L, Lebtahi K, Abarca-Quinones J, Havaux N, Dupont S, Dubois V & Trouet A (2004). CPI-0004Na, a new doxorubicin prodrug, reduce growth of 3LL-H61 carcinoma lung metastases in C57BI/6 mice. Journal of Experimental Therapeutics and Oncology 4: 169-171.   

Lebon O, Basiaux P, Steel E, Tecco J, Minner P, Pelc I, Verbanck P & Dupont S (2004). Personality profile and drug of choice: a multivariate analysis using Cloninger’s TCI on heroin addicts, alcoholics and a random population group. Drug and Alcohol Dependence. 73: 175-182.

Salpietro L, Costanzo MT, Genovese L, Dupont S, Costa M (2004) The use of the preorbital bone as a suitable method to identify Italian species of mullets (Perciformes: Mugilidae) Biogeographia XXV.

Massin C & Dupont S (2003). Study on the Leptoconchus (Gastropoda, Coralliophilidae) infesting Fungiidae (Anthozoa: Scleractinia): 1. Presence of nine Operational taxonomic units (OTUs) based on anatomical and ecological characters. Belgian Journal of Zoology 133(2): 123-128

Dielen V, Lecouvet V, Dupont S & Kinet J-M
(2001) In vitro regulation of floral transition in tomato (Lycopersicon esculentum Mill.), the model for autonomously flowering plants, using the late flowering uniflora mutant. Journal of Experimental Botany 52(357): 715-723.

Salpietro L, Costa F, Costa M & Dupont S
(2000) A description of mucous channels and cyathiform organs of Buenia affinis Iljin 1930 (Pisces, Gobiidae). Oebalia XXVI: 109-116.

Development of new scientific tools based on Internet technologies

I am interested in the development of new tools using Internet technologies in order to improve scientific publications and to develop new tools for data acquisitions and analysis.

Related publications

Dupont S & Pirali B (2000). SAS helps rapid, transparent dissemination of scientific information, SAS Success Story. Download in pdf.

Dupont S, Lehon M, Pirali B & Roberfroid S (2001) CERES, a toolkit to improve scientific diffusion. SAS Belux Academic Newsletter. 3 pages.

Sam face

Contact information

Sam Dupont

Department of Biological and Environmental Sciences - Kristineberg
University of Gothenburg
Kristineberg 566
SE-451 78 FISKEBÄCKSKIL
SWEDEN

Affiliation:

CeMEB - The Linnaeus Centre for Marine Evolutionary Biology

Phone:

+46 (0)31 786 95 31

E-mail:

sam.dupont@gu.se

Grafic fish for CeMEB

CeMEB

The Linnaeus Centre for Marine Evolutionary Biology -CeMEB

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