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.
- De Silva NAL., Marsden ID., Taylor R., Gaw S. and Glover CN. (2021) Population responses of the pulmonate gastropod, Amphibola crenata, reflect estuarine trace metal contamination. New Zealand Journal of Marine and Freshwater Research http://dx.doi.org/10.1080/00288330.2021.1929350.
- Webb S., Gaw S., Marsden ID. and McRae NK. (2020) Biomarker responses in New Zealand green-lipped mussels Perna canaliculus exposed to microplastics and triclosan. Ecotoxicology and Environmental Safety 201 http://dx.doi.org/10.1016/j.ecoenv.2020.110871.
- Falconer TRL., Marsden ID., Hill JV. and Glover CN. (2019) Does physiological tolerance to acute hypoxia and salinity change explain ecological niche in two intertidal crab species? Conservation Physiology 7(1) http://dx.doi.org/10.1093/conphys/coz086.
- Webb S., Ruffell H., Marsden I., Pantos O. and Gaw S. (2019) Microplastics in the New Zealand green lipped mussel Perna canaliculus. Marine Pollution Bulletin 149 http://dx.doi.org/10.1016/j.marpolbul.2019.110641.
- Broughton RJ., Marsden ID., Hill JV. and Glover CN. (2018) Interactive effects of hypoxia and dissolved nutrients on the physiology and biochemistry of the freshwater crayfish Paranephrops zealandicus. Marine and Freshwater Research 69(6): 933-941. http://dx.doi.org/10.1071/MF17262.