Ackerman, Josef - University of Guelph - Department of Integrative Biology

个人简介

I received my MA under the late Akira Okubo at SUNY Stony Brook, where I examined the hydrodynamics of eelgrass canopies (Zostera marina), before moving to Cornell University where I studied the biomechanics of submarine pollination in eelgrass for my PhD under Karl Niklas. This was followed by a postdoc/research associate in Mechanical Engineering at the University of Toronto (and partly at the Royal Ontario Museum) where I examined the biomechanics of zebra mussel (Dreissena polymorpha and D. bugensis) adhesive, suspension feeding and benthic-pelagic coupling. As a founding faculty member and Canada Research Chair in Physical Ecology and Aquatic Science at UNBC, I examine suspension feeding in blue mussels (Mytilus trossulus and M. californianus), hydraulic habitats of stream organisms, pheromone dispersion, kelp holdfast mechanics, and particle capture in plant-like collectors. Much of my current research at Guelph involves the physical ecology of unionid bivalves, their early life history and conservation, and understanding the mechanics of nutrient uptake in aquatic plants. I am the Editor in Chief of Limnology & Oceanography: Fluids and Environments, Associate Editor of Aquatic Sciences, and a former Associate Editor of Limnology and Oceanography. I am a member of a number of scientific societies including: AGU, ASLO, AIBS, BES, BSA, CERF, IAGLR, NABS, SCL, SMB, and TOS. B.Sc. - University of Toronto - 1982 M.Sc. - SUNY at Stony Brook - 1985 Ph.D. - Cornell University - 1989

研究领域

Physical Ecology and Aquatic Sciences (Marine and Freshwater Biology) Nutrient and trophic dynamics in benthic producers and consumers: Hydrodynamics and mass transport. Nutrient Uptake by aquatic plants Suspension feeding by freshwater and marine mussels The physical ecology of reproduction, dispersal, and early life history. Dispersion of mussel gametes, larvae and juveniles in lakes and rivers Determination of hydraulic habitats of juvenile mussels Conservation and Restoration of Aquatic Ecosystems. Identification of host fish and rearing juveniles of endangered unionid mussel. Determination of the role of benthic processes in hypoxia of lakes. Some of long-term interests include the convergent evolution of morphological structures and processes, the manner by which organisms have adapted to their physical environment, and fluid dynamic aspects of mass transfer through ecosystems. I have been fortunate to ask many of these questions within an applied context related to industrial ecology, fisheries, forestry, and conservation. I continue to be interested in exploring the ecology of marine and freshwater plants (and algae) and benthic invertebrates. Most of my research is undertaken in the Physical Ecology Laboratory, Hagen Aqualab and in the field in locations that include southwestern Ontario rivers, Lake Erie, Vancouver Island (Bamfield Marine Sciences Centre), and the Rocky Mountains.

近期论文

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Vanden Byllaardt, J. and J.D. Ackerman. 2014. Hydrodynamic habitat influences suspension feeding by unionid mussels in freshwater ecosystems. Freshwater Biology. 59: 1187-1196. French, S.K. and J.D. Ackerman. 2014. Responses of newly settled juvenile mussels to bed shear stress: Implications for dispersal. Freshwater Science 33(1):46-55. Quinn, N.P. and J.D. Ackerman. 2014. Effects of near-bed turbulence on the suspension and settlement of freshwater dreissenid mussel larvae. Freshwater Biology 59: 614–629. Ackerman, J.D. 2014. Role of fluid dynamics in dreissenid mussel biology. pp 471-483 in T.F. Nalepa and D.W. Schloesser (eds). Quagga and Zebra Mussels: Biology, Impact, and Control. Second Edition. CRC Press, Boca Raton, FL. 775 pp. Quinn, N.P. and J.D. Ackerman. 2012. Biological and ecological mechanisms for overcoming sperm limitation in freshwater invertebrates. Aquatic Sciences 74: 415-425. DOI: 10.1007/s00027-011-0237-0 Schwalb, A.N., T.J. Morris, and J.D. Ackerman. 2012. The effect of settling velocity on larval mussel transport in a cobble-bed river: Water column and near-bed turbulence. Limnology and Oceanography: Fluids and Environments. 2:28-40 Quinn, N.P. and J.D. Ackerman. 2011. The effect of near-bed turbulence on the external fertilization of broadcast spawning bivalves. Limnology and Oceanography:Fluids and Environments 1: 176-193 Schwalb, A.N., K. Cottenie, M.S. Poos and J.D. Ackerman. 2011. Dispersal limitation of unionid mussels and implications for their recovery. Freshwater Biology 56(8): 1509–1518. DOI: 10.1111/j.1365-2427.2011.02587.x Schwalb, A.N., and J.D. Ackerman. 2011. Settling velocities of juvenile Lampsilini mussels (Mollusca: Unionidae): The influence of behavior. Journal of the North American Benthological Society 30:702-209 Schwalb, A. N., M. S. Poos, and J. D. Ackerman 2011. Movement of logperch - the obligate host fish for endangered snuffbox mussels: Implications for mussel dispersal. Aquatic Sciences 73:223–231. DOI 10.1007/s00027-010-0171-6