Research interests lie in the physiological ecology of marine invertebrates, especially Crustacea and bivalve molluscs. Research efforts have been targeted towards understanding the mechanisms of adaptation used by animals to survive in intertidal habitats, including sand beaches and estuaries. Laboratory work is an integral part of this research, much of the emphasis being on oxygen uptake, energy demands and utilisation. Recent work is aimed at understanding the effects of environmental factors including toxic dinoflagellates on the metabolism, survival and reproduction of sand beach bivalves and researching the factors that affect trace metal uptake in invertebrates and testing various marine and estuarine species as indicators of environmental stress.
- Broughton RJ., Marsden ID., Hill JV. and Glover CN. (2017) Behavioural, physiological and biochemical responses to aquatic hypoxia in the freshwater crayfish, Paranephrops zealandicus. Comparative Biochemistry and Physiology - Part A: Physiology 212: 72-80. http://dx.doi.org/10.1016/j.cbpa.2017.07.013.
- Chandurvelan R., Marsden ID., Gaw S. and Glover CN. (2017) Acute and sub-chronic effects of sub-lethal cadmium exposure on energy metabolism in the freshwater shrimp, Paratya curvirostris. Ecotoxicology and Environmental Safety 135: 60-67. http://dx.doi.org/10.1016/j.ecoenv.2016.09.018.
- Reid C., Cochran U., Clark K., Marsden I., Litchfield N. and Ries W. (2017) Salt marsh plant response to vertical deformation resulting from the February 2011 Christchurch earthquake. New Zealand Journal of Geology and Geophysics 60(3): 220-238. http://dx.doi.org/10.1080/00288306.2017.1307233.
- Adkins SC., Marsden ID. and Pirker JG. (2016) Reproduction, growth and size of a burrowing intertidal clam exposed to varying environmental conditions in estuaries. Invertebrate Reproduction and Development 60(3): 223-237. http://dx.doi.org/10.1080/07924259.2016.1198833.
- Chandurvelan R., Marsden ID., Glover CN. and Gaw S. (2016) Biomarker responses of mussels exposed to earthquake disturbances. Estuarine, Coastal and Shelf Science 182: 98-111. http://dx.doi.org/10.1016/j.ecss.2016.09.008.