About the Authors

Charles Hipkin, now retired, was a Senior Lecturer in the Department of Biological Sciences, Swansea University where his research centred on the  biochemistry of nitrogen assimilation in plants and  eukaryotic microorganisms, particularly microalgae and yeasts. He published extensively on these…

Barry Stewart, grew up in Sunderland and worked for the Wildflowl and Wetlands Trust (WWT) before moving to Wales in 1989, where he helped setup the WWT centre at Llanelli in Carmarthenshire. He then went to Swansea University as a mature student and graduated in Environmental Biology in 1997.