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Bibliographie de l'Institut Maurice-Lamontagne

Serge DEMERS

FAUCHOT, J., M. GOSSELIN, M. LEVASSEUR, B. MOSTAJIR, C. BELZILE, S. DEMERS, S. ROY, P.Z. VILLEGAS, 2000. Influence of UV-B radiation on nitrogen utilization by a natural assemblage of phytoplankton. J. Phycol., 36: 484-496.

DEMERS, S., C. BELZILE, C., S.R.S. LEAN, B. MOSTAJIR, S. ROY, S. DE MORA, D. BIRD, M. GOSSELIN, J.-P. CHANUT, M. LEVASSEUR, H. BROWMAN, 1998. An experimental tool for the study of the effects of ultraviolet radiation on planktonic communities : a mesocosm approach.. Environ. Technol., 19: 667-682.

SAKKA, A., M. GOSSELIN, M. LEVASSEUR, S. MICHAUD, P. MONFORT, S. DEMERS, 1997. Effect of ultraviolet radiation on the marine production of dimethylsufoniopropionate and. Mar. Ecol. Prog. Ser., 149(1-3): 227-238.

MONTI, D., L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, 1996. Horizontal distribution of sea-ice microalgae : environmental control and spatial processess (southeastern Hudson Bay, Canada). Mar. Ecol. Prog. Ser., 133: 229-240.

FRENETTE, J.-J., S. DEMERS, L. LEGENDRE, M. BOULÉ, 1996. Size-related photosynthetic characteristics of phytoplankton during periods of seasonal mixing and stratification in an oligotrophic multibasin lake system. J. Plankton Res., 18(1): 45-61.

LAURION, I., S. DEMERS, A.F. VÉZINA, 1995. The microbial food web associated with the ice algal assemblage : biomass and bacterivory of nanoflagellate protozoans in Resolute Passage (High Canadian Arctic). Mar. Ecol. Prog. Ser., 120: 77-87.

FRENETTE, J.-J., S. DEMERS, L. LEGENDRE, M. BOULÉ, J. DODSON, 1994. Mixing, stratification and the fate of primary production in an oligotrophic multibasin lake system (Québec, Canada). J. Plankton Res., 16: 1095-1115.

FRENETTE, J.-J., S. DEMERS, L. LEGENDRE, J.J. DODSON, 1993. Lack of agreement among models for estimating the photosynthetic parameters. Limnol. Oceanogr., 38: 679-687.

DEMERS, S., J.-C. THERRIAULT, 1993. Quand les océans pompent le CO2. Interface, 14(3): 14-25.

MICHEL, C., L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, T. VANDEVELDE, 1993. Springtime coupling between ice algal and phytoplankton assemblages in southeastern Hudson Bay, Canadian Arctic. Polar Biol., 13: 441-449.

LEGENDRE, L., M.-J. MARTINEAU, J.-C. THERRIAULT, S. DEMERS, 1992. Chlorophyll a biomass and growth of sea-ice microalgae along a salinity gradient (southeastern Hudson Bay, Canadian Arctic). Polar Biol., 12: 445-453.

SCARRAT, D.J., C. MARTIN, T. de FREITAS, M. HAWRYLUK, M. DESBIENS, H. CHEBIB, S. DEMERS, M. FRÉCHETTE, D. BAUDINET, D.J. WILDISH, S.T. DUNCAN, W.W. YOUNG-LAI, T.J. SOMERSET, E. TODD, L. GODBOUT, 1992. Transfer of phycotoxins in the benthic food web. Pages 67-71 in J.-C. Therriault & M. Levasseur (ed.). Proceedings of the Third Canadian Workshop on Harmful Marine Algae, Maurice-Lamontagne lnstitute, Mont-Joli, Québec, 12-14 May, 1992.

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DEMERS, S., J. KIM, P. LEGENDRE, L. LEGENDRE, 1992. Analyzing multivariate flow cytometric data in aquatic sciences. Cytometry, 13: 291-298.

DEMERS, S., S. ROY, R. GAGNON, C. VIGNAULT, 1991. Rapid light-induced changes in cell fluorescence and in xanthophyll-cycle pigments of Alexandrium excavatum (Dinophyceae) and Thalassiosira pseudonana (Bacillariophyceae) : a photo-protection mechanism. Mar. Ecol. Prog. Ser., 76: 185-193.

DEMERS, S. (ed.), 1991. Particle analysis in oceanography. Springer-Verlag, Berlin (NATO ASI Series G, Ecological Sciences, 27), 428 p.

De LAFONTAINE, Y., S. DEMERS, J. RUNGE, 1991. Pelagic food web interactions and productivity in the Gulf of St. Lawrence : a perspective. Pages 99-123 in J.-C. Therriault (ed.). The Gulf of St. Lawrence : small ocean or big estuary ? Dept. of Fisheries and Oceans (Can. Spec. Publ. Fish. Aquat. Sci., 113).

RUNGE, J.A., J.-C. THERRIAULT, L. LEGENDRE, R.G. INGRAM, S. DEMERS, 1991. Coupling between ice microalgal productivity and the pelagic, metazoan food web in southeastern Hudson Bay : a synthesis of results. Polar Res., 10(2): 325-338.

SUNDBY, B., N. SILVERBERG, B. BOUDREAU, R. CRANSTON, S. DEMERS, Y. GRATTON, M. LUCOTTE, A. MUCCI, E. PELLETIER, R. PETT, J. SMITH, P. YEATS, 1991. Rapport de l'atelier de travail sur l'océanographie chimique et la sédimentologie. Pages 13-22 in J.-C. Therriault (éd.). Le golfe du Saint-Laurent : petit océan ou grand estuaire? Ministère des pêches et des océans (Publ. spéc. can. sci. halieut. aquat., 113).

SUNDBY, B., N. SILVERBERG, B. BOUDREAU, R. CRANSTON, S. DEMERS, Y. GRATTON, M. LUCOTTE, A. MUCCI, E. PELLETIER, R. PETT, J. SMITH, P. YEATS, 1991. Report of the Workshop on Chemical Oceanography and Sedimentology. Pages 13-22 in J.-C. Therriault (ed.). The Gulf of St. Lawrence : small ocean or big estuary ? Dept. of Fisheries and Oceans (Can. Spec. Publ. Fish. Aquat. Sci., 113).

FALKOWSKI, P., S. DEMERS, L. LEGENDRE, 1991. Concluding remarks : promises and limitations of individual cell and particle analysis. Pages 403-408 in S. Demers (ed.). Particle analysis in oceanography. Springer-Verlag, Berlin (NATO ASI Series G, Ecological Sciences, 27).

RUNGE, J.A., J.-C. THERRIAULT, L. LEGENDRE, R.G. INGRAM, S. DEMERS, 1991. Coupling between ice microalgal productivity and the pelagic, metazoan food web in southeastern Hudson Bay : a synthesis of results. Pages 325-338 in E. Sakshaug, C.C.E. Hopkins & N.A. Oritsland (ed.). Proceedings of the Pro Mare Symposium on Polar Marine Ecology. Trondheim, 12-16 May 1990.

GOSSELIN, M., L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, 1990. Light and nutrient limitation of sea-ice microalgae (Hudson Bay, Canadian Arctic). J. Phycol., 26: 220-232.

THERRIAULT, J.-C., D. BOOTH, L. LEGENDRE, S. DEMERS, 1990. Phytoplankton photoadaptation to vertical excursion as estimated by an in vivo fluorescence ratio. Mar. Ecol. Prog. Ser., 60: 97-111.

RUNGE, J.A., M. BRADSTREET, J. BUNCH, S. DEMERS, E.H. GRAINGER, S. HSIAO, G. INGRAM, M. POULIN, J. ROFF, C. TAGGART, W. WELCH, 1990. Report of planktonic and ice production working group. Pages 24-28 in J.A. Percy (ed.). Proceedings of a workshop : Marine Ecosystem Studies in Hudson Strait, November 9-10, 1989, Montréal, Québec. Dept. of Fisheries and Oceans (Can. Tech. Rep. Fish. Aquat. Sci., 1770).

MICHEL, C., L. LEGENDRE, S. DEMERS, J.-C. THERRIAULT, 1990. Photoadaptation of sea-ice microalgae in springtime : photosynthesis and carboxylating enzymes. Mar. Ecol. Prog. Ser., 50: 177-185.

THERRIAULT, J.-C., L. LEGENDRE, S. DEMERS, 1990. Oceanography and ecology of phytoplankton in the St. Lawrence Estuary. Pages 269-295 in M. El-Sabh & N. Silverberg (ed.). Oceanography of a large-scale estuarine system : the St. Lawrence. Springer-Verlag, Berlin (Coastal and estuarine studies, 39).

DEMERS, S., K. DAVIS, T.L. CUCCI, 1989. A flow cytometric approach to assessing the environmental and physiological status of phytoplankton. Cytometry, 10: 644-652.

DEMERS, S., L. LEGENDRE, S.Y. MAESTRINI, M. ROCHET, R.G. INGRAM, 1989. Nitrogenous nutrition of sea-ice microalgae. Polar Biol., 9: 377-383.

DEMERS, S., J.-C. THERRIAULT, E. BOURGET, H. DÉSILETS, 1989. Small-scale gradients of phytoplankton productivity in the littoral fringe. Mar. Biol., 100: 393-399.

LEGENDRE, L., S. DEMERS, J.-C. THERRIAULT, 1989. Responses of Arctic sea-ice microalgae to light and temperature : physiological adaptations and ecological implications. Rapp. P-v. Réun. CIEM, 188: 115-120.

VANDEVELDE, T., L. LEGENDRE, S. DEMERS, J.-C. THERRIAULT, 1989. Circadian variations in photosynthetic assimilation and estimation of daily phytoplankton production. Mar. Biol., 100: 525-531.

DEMERS, S., J.-C. THERRIAULT, L. LEGENDRE, 1989. Responses of sea-ice microalgae to nutrients. Page 122 in G. Hempel (ed.). Oceanography and biology of Arctic seas. International Council for the Exploration of the Sea (Rapp. P.-v. Réun. CIEM, 188).

MICHEL, C., L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, 1989. Photosynthetic responses of arctic sea-ice microalgae to short-term temperature acclimation. Polar Biol., 9: 437-442.

THERRIAULT, J.-C., S. DEMERS, L. LEGENDRE, R.G. INGRAM, J. RUNGE, 1989. Physical control of biological production at the seasonal sea-ice/water interface and in the underlying water column in Hudson Bay (Canada). Page 123 in G. Hempel (ed.). Oceanography and biology of Arctic seas. International Council for the Exploration of the Sea (Rapp. P.-v. Réun. CIEM, 188).

VANDEVELDE, T., L. LEGENDRE, S. DEMERS, J.-C. THERRIAULT, 1988. Interrelationship between in vivo fluorescence of phytoplankton and light beam transmission with reference to fluorescence yield. Can. J. Fish. Aquat. Sci., 45: 1508-1513.

BARLOW, R.G., M. GOSSELIN, L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, C.A. LLEWELLYN, R.F.C. MANTOURA, 1988. Photoadaptive strategies in sea-ice microalgae. Mar. Ecol. Prog. Ser., 45: 145-152.

LEGENDRE, L., S. DEMERS, C. GARSIDE, E. M. HAUGEN, D. A. PHINNEY, L.P. SHAPIRO, J.-C. THERRIAULT, C.M. YENTSCH, 1988. Circadian photosynthetic activity of natural marine phytoplankton isolated in a tank. J. Plankton Res., 10: 1-6.

LEGENDRE, L., S. DEMERS, B. DELESALLE, C. HARNOIS, 1988. Biomass and photosynthetic activity of phototrophic picoplankton in coral reef waters (Moorea Island, French Polynesia). Mar. Ecol. Prog. Ser., 47: 153-160.

LEGENDRE, L., S. DEMERS, M. GOSSELIN, 1987. Chlorophyll and photosynthetic efficiency of size-fractionated sea-ice microalgae (Hudson Bay, Canadian Arctic). Mar. Ecol. Prog. Ser., 40: 199-203.

[Résumé disponible seulement en anglais]
Microalgal samples collected at the ice-water interface (Hudson Bay, Canadian Arctic) were size fractionated in order to determine if small algae, corresponding to the size of picoplankton in open waters, were present in the sea-ice environment. The <5 µ fraction was found to account for up to 4 % of total chlorophyll a and 20 % of total chlorophyll c. Photosynthetically active algae were present in the <1 µ fraction. Their photosynthetic efficiency was lower than that of the large ice diatoms, which indicated better adaptation of these larger cells to low under-ice light intensities. This is contrary to what has generally been observed for picoplankton in open waters. The ecological significance of ice picoalgae remains to be assessed.©1987 Inter-Research

MAESTRINI, S.Y., M. ROCHET, L. LEGENDRE, S. DEMERS, 1987. Nutriments et biomasse micro-algale de l'interface eau-glace au large de Kuujjuarapik, Baie d'Hudson, Arctique canadien. Pages 221-232 in Production et relations trophiques dans les écosystèmes marins : 2e colloque franco-soviétique. (IFREMER act. coll., 5).

DEMERS, S., J.-C. THERRIAULT, E. BOURGET, A. BAH, 1987. Resuspension in the shallow sublittoral zone of a macrotidal estuarine environment : wind influence. Limnol. Oceanogr., 32(2): 327-339.

[Résumé disponible seulement en anglais]
Several biological and physical variables were measured four times daily for 148 consecutive days at a fixed station to examine fluctuations of phytoplankton abundance in the littoral zone of the lower St. Lawrence estuary. On the seasonal scale, the pattern of variation of phytoplankton was characterized by a midsummer diatom bloom similar to that observed ofshore in the pelagic zone. On the shorter time scale, chlorophyll a concentration in the littoral zone was highly variable and closely associated with variations in the wind field. No relationship, however, could be found between phytoplankton cell numbers and wind velocity. The possible influence of wind, tidal-induced upwelling, overturning eddies, and wave-induced mixing processes on resuspension was examined. The higher Chl a values observed irregularly at the sampling stations resulted from the mechanical resuspension of benthic diatoms due to wind, or wind-induced wave, mixing in the littoral zone. Wind velocities >4 m s -1 were shown to cause significant resuspension of particulate organic matter (POC) in the water column. For winds >6 m s -1, there was no further increase in POC. These results suggest that the frequency of wind velocities >4 m s -1 plays a significant role on secondary production in the littoral zone by providing an increased food supply to benthic and planktonic filter feeders, especially at times when phytoplankton biomass is normally low in the water column.©1987 American Society of Limnology and Oceanography, Inc.

VANDEVELDE, T., L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, A. BAH, 1987. Subsurface chlorophyll maximum and hydrodynamics of the water column. J. Mar. Res., 45: 377-396.

SAKSHAUG, E., S. DEMERS, C.M. YENTSCH, 1987. Thalassiosira oceanica and T. pseudonana : two different photoadaptational responses. Mar. Ecol. Prog. Ser., 41: 275-282.

LEGENDRE, L., M. ROCHET, S. DEMERS, 1986. Sea-ice microalgae to test the hypothesis of photosynthetic adaptation to high frequency light fluctuations. J. Exp. Mar. Biol. Ecol., 97: 321-326.

ROCHET, M., L. LEGENDRE, S. DEMERS, 1986. Photosynthetic and pigment responses of sea-ice microalgae to changes in light intensity and quality. J. Exp. Mar. Biol. Ecol., 101: 211-226.

DEMERS, S., L. LEGENDRE, J.-C. THERRIAULT, 1986. Phytoplankton responses to vertical tidal mixing. Pages 1-40 in M.J. Bowman, C.M. Yentsch & W.T. Peterson (ed.). Tidal mixing and plankton dynamics. Springer-Verlag, Berlin (Lecture notes on coastal and estuarine studies,17).

MAESTRINI, S.Y., M. ROCHET, L. LEGENDRE, S. DEMERS, 1986. Nutrient limitation of the bottom-ice microalgae biomass (southeastern Hudson Bay, Canadian Arctic). Limnol. Oceanogr., 31: 969-982.

LEGENDRE, L., S. DEMERS, D. LEFAIVRE, 1986. Biological production at marine ergoclines. Pages 1-29 in J.C.J. Nihoul (ed.). Marine interfaces ecohydrodynamics. Elsevier, Amsterdam (Elsevier oceanography series, 42).

GOSSELIN, M., L. LEGENDRE, J.-C. THERRIAULT, S. DEMERS, M. ROCHET, 1986. Physical control of the horizontal patchiness of sea-ice microalgae. Mar. Ecol. Prog. Ser., 29: 289-298.

DEMERS, S., L. LEGENDRE, J.-C. THERRIAULT, R.G. INGRAM, 1986. Biological production at the ice-water ergoclines. Pages 31-54 in J.C.J. Nihoul (ed.). Marine interfaces ecohydrodynamics. Elsevier, Amsterdam (Elsevier Oceanography Series, 42) .

[Résumé disponible seulement en anglais]
The ice-water interface is the site of high microalgal productivity. These microalgae constitute an important part of the productivity of polar seas. The growth of ice microalgae during the spring and perhaps during the autumn extends the short growing season in the water column. Herbivores have been observed to actively feed on the ice microalgae. Sea-ice microalgae respond to variations in salinity (which controls biomass and taxonomic composition in coastal areas influenced by freshwater runoff), temperature (the survival of microalgae depends on their ability to develop a protection mechanism against freezing), light (the photosynthetic activity of ice microalgae is a function of both light intensity and quality) and nutrients (nutrient limitation has been demonstrated even when ambient nutrient concentrations were high). The biological production at this energetic interface is examined in the specific context of the ice-water ergocline.