Resume

Full Name:			Dr Henry John Cranfield
Present position:			Consultant
Academic qualifications:
	1971 Ph.D., University College of North Wales, Bangor 1962 M.Sc. (1st class Hons), Canterbury University 1959 B.Sc. Canterbury University College
Years as a practising researcher:
			42
Professional positions held:
	1995-2004 Research Scientist National Institute of Water & Atmospheric Research Ltd, studying biology of surf clams, assessing the oyster population of Foveaux Strait, effects of disease mortality and effects of dredging on seafloor and habitat, assessing numbers of marine organisms adventive in New Zealand 1972–1995 Fisheries Research Scientist, Fisheries Research Division, NZ Ministry of Agriculture and Fisheries, studying oyster biology and population size and fishery management of Foveaux Strait oyster fishery, studying biology of surf clams and their distribution and abundance around New Zealand; studying scallop larval biology and recruitment and scallop population size and fishery management. 1968–1971 NZ National Research Advisory Council Research Fellow, Marine Sciences Laboratory, Menai Bridge, University College of North Wales, studying the morphology and settlement behaviour of larvae of the European oyster 1964–1968 Scientist, Fisheries Research Division, Marine Department, studying Foveaux Strait oyster biology, especially settlement and recruitment and assessing the Foveaux Strait fishery 1962–1964 Research Scientist, Antarctic Division, NZ Department of Scientific and Industrial Research,studying penguin behaviour and ecology at Cape Hallett, Antarctica 1959  Fishery Officer, New Zealand Marine Department, research on native freshwater fish and management of fisheries for acclimatized trout and quinnat salmon in New Zealand
Research skills and experience:
	Bivalve biology and Ecology Oyster biology, growth, breeding, larval morphology, biology and settlement behaviour (Ph.D. studies), recruitment, age and longevity, biomass estimation, dredge fisheries, behaviour and efficiency of dredges, effects of dredging on seafloor, incidental mortality from dredging, methods for avoiding remedying or mitigating the effects of dredging on the environment; effects of parasitism effects of habitat on production, dredge-fishery management Surf clam distribution and biology; intertidal and subtidal population surveys, growth, age, juvenile and adult zonation on beaches and distribution around New Zealand coasts, burying behaviour and effects of variation in dilatancy of sand, mortality and recruitment, efficiency and behaviour of hydraulic dredges, effects of dredging on seabed, dynamics of seabed of surf beaches and importance in nutrient cycling in maintaining primary production in surf zone, management of surf clam fishery and recreational fisheries Scallop biology, especially breeding, larval biology, dispersion of larvae in plankton, settlement of larvae and recruitment, estimation of biomass, behaviour of dredges and their efficiency, incidental mortality, effects of dredging on seafloor, dredge fishery management General Ecology Adventive, species that have invaded New Zealand marine fauna and flora over the years. Seafloor processes, In coastal waters and beaches, effects of fishing on seabed erosion, effects of fishing on seafloor benthos, flow on effects in seabed physical and biological processes and fishery production, species succession in regenerating habitat and indicator species. Antarctic bird ecology and biology especially Adelie Penguins Trout and salmon fisheries of New Zealand Native freshwater fish ecology and systematics