A5083121004- Marine and coastal ecosystems
- Marine and fisheries research
- Crustacean biology and ecology
- Marine Biology and Ecology Research
- Aquaculture Nutrition and Growth
- COVID-19 epidemiological studies
- Fish Ecology and Management Studies
- SARS-CoV-2 and COVID-19 Research
- Coral and Marine Ecosystems Studies
- COVID-19 and Mental Health
- Mathematical and Theoretical Epidemiology and Ecology Models
- Evolution and Genetic Dynamics
- Spatial and Panel Data Analysis
- Isotope Analysis in Ecology
- Oceanographic and Atmospheric Processes
- Evolutionary Game Theory and Cooperation
- Urban, Neighborhood, and Segregation Studies
- Water Quality Monitoring and Analysis
- Caribbean history, culture, and politics
- Groundwater and Isotope Geochemistry
- Fish Biology and Ecology Studies
- Land Use and Ecosystem Services
- Coastal wetland ecosystem dynamics
- Marine and coastal plant biology
- Aquatic Ecosystems and Phytoplankton Dynamics
University of Sheffield
2021-2024
Wellington City Council
2019-2020
University of Tasmania
2006
National Institute of Water and Atmospheric Research
1996-2005
Institute of Science and Technology
1975
University of Wales Institute Cardiff
1975
An improved knowledge of iron biogeochemistry is needed to better understand key controls on the functioning high‐nitrate low‐chlorophyll (HNLC) oceanic regions. Iron budgets for HNLC waters have been constructed using data from disparate sources ranging laboratory algal cultures ocean physics. In summer 2003 we conducted FeCycle, a 10‐day mesoscale tracer release in SE New Zealand, and measured concurrently all (with exception aerosol deposition) to, sinks from, rates recycling within,...
New Zealand (NZ) is an island nation with stewardship of ocean twenty times larger than its land area. While the challenges facing NZ's are similar to other maritime countries, no coherent national plan exists that meets needs scientists, stakeholders or kaitiakitanga (guardianship) in a changing climate. The NZ marine science community will use OceanObs'19 white paper establish framework and implementation for collaborative observing system (NZ-OOS). Co-production knowledge Māori be...
Seagrass meadows are vulnerable to fine sediment (mud) pollution, with impacts usually attributed reduction in submerged light. Here we tested two non-exclusive hypotheses, that mud particles (<63 µm) impact seagrasses through both (1) the light climate and (2) changes substrate physico-chemistry. We these hypotheses Pāuatahanui Inlet, New Zealand, by comparing seagrass presence, abundance, health, together physico-chemistry at contrasting habitats where used thrive but no longer grows...
A common non-pharmaceutical intervention (NPI) during the COVID-19 pandemic has been group size limits. Furthermore, educational settings of schools and universities have either fully closed or reduced their class sizes. As countries begin to reopen classrooms, a key question will be how large classes can while still preventing local outbreaks disease. Here, we develop analyse simple, stochastic epidemiological model where individuals (considered as students) live in fixed households are...
Abstract Data sets of pump‐sampled zooplankton > 39 μm were obtained for early August 1987, late July 1988, and June 1990, along with environmental data in 1987 off the west coast South Island, New Zealand. The circumstances favourable to species known be food hoki larvae (Macruronus novaezelandiae) investigated. We found that a major proportion vertical distribution epipelagic Westland is influenced by passive interaction physical processes against background autotrophic particles....
Abstract Trophically transmitted parasites often infect an intermediate prey host and manipulate their behaviour to make predation more likely, thus facilitating parasite transmission the definitive host. However, it is unclear when such a manipulation strategy should be expected evolve. We develop first evolutionary invasion model explore evolution of strategies that are in trade-off with production free-living spores. find size susceptible population together threat drives evolution. only...
Abstract A common non-pharmaceutical intervention (NPI) during the Covid-19 pandemic has been group size limits. Further, educational settings of schools and universities have either fully closed or reduced their class sizes. As countries begin to reopen classrooms, a key question will be how large classes can while still preventing local outbreaks disease. Here we develop analyse simple, stochastic epidemiological model where individuals (considered as students) live in fixed households are...
Data which are measured in several characteristics and at different points of time sometimes available for a population. Transition matrices or mobility tables often constructed from such ‘panel data’ and, as the case Census migration analysis, become basis wide range research activity. Problems arise when gaps appear series change needs to be tabulated over specific interval. Several methods estimating subinterval transition presented evaluated, one method is examined an empirical...