Web Access Research Portal

Researcher: Ratnarajah, L (Ms Lavenia Ratnarajah)

Fields of Research

Freshwater ecology
Chemical oceanography
Biological oceanography
Other biological sciences
Marine and estuarine ecology (incl. marine ichthyology)
Conservation and biodiversity
Behavioural ecology
Environmental law

Research Objectives

Biodiversity in Antarctic and Southern Ocean environments
Measurement and assessment of marine water quality and condition
Expanding knowledge in the biological sciences
Fresh, ground and surface water biodiversity
Assessment and management of terrestrial ecosystems
Assessment and management of freshwater ecosystems
Assessment and management of coastal and estuarine ecosystems
Understanding climate change
Climate change adaptation measures (excl. ecosystem)
Oceanic processes (excl. in the Antarctic and Southern Ocean)

Career Best Publications

Research Publications

A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestration; Ecology Letters
A preliminary model of iron fertilisation by baleen whales and Antarctic krill in the Southern Ocean: sensitivity of primary productivity estimates to parameter uncertainty; Ecological Modelling
Biotic and abiotic variables influencing plant litter breakdown in streams: A global study; Proceedings of the Royal Society B: Biological Sciences
Bottoms up
Bottoms up: how whale poop helps feed the ocean
Effects of exotic riparian vegetation on leaf breakdown by shredders: a tropical-temperate comparison; Freshwater Science
Kerguelen Axis 2015-16: Marine science activities in support of research and observing of marine ecosystems in the vicinity of the Kerguelen Axis during 2015-16 austral summer
Nutrient cycling: are Antarctic krill a previously overlooked source in the marine iron cycle?; Current Biology
Pelagic iron recycling in the Southern Ocean: exploring the contribution of marine animals; Frontiers in Marine Science
Physical speciation and solubility of iron from baleen whale faecal material; Marine Chemistry
Sea ice meltwater and circumpolar deep water drive contrasting productivity in three Antarctic polynyas; Journal of Geophysical Research: Oceans
Shredders in Malaysia: abundance and richness are higher in cool upland tropical streams; Journal of the North American Benthological Society
The Biogeochemical Role of Baleen Whales and Krill in Southern Ocean Nutrient Cycling; PLoS ONE
The effects of leaf toughness on feeding preference by two Tasmanian shredders; Hydrobiologia: The International Journal on Limnology and Marine Sciences
Understanding the variability in the iron concentration of Antarctic krill; Limnology and Oceanography
Whale poo creates healthier oceans
Whale poo vital to Southern Ocean health according to UTAS researcher

Research Projects

Research Candidate Supervision