Stable nitrogen isotopes were used to assess the effects of wastewater treatment plant (WWTP) upgrades on the utilisation of sewage-N by estuarine biota in Moreton Bay, Australia. We measured delta(15)N of filamentous algae, mangrove leaves and shore crabs at the Brisbane and Logan Rivers before and after scheduled WWTP upgrades, and at two reference rivers where WWTPs had been upgraded >4 year...

Biochemical oxygen demand is an important example of water pollutants that degrade biochemically and affect water quality according to the location as well as the strength of the discharge. Therefore, it is important to examine carefully the potential water quality impacts of a program of transferable discharge permits (TDPs) to regulate these discharges prior to the implementation of such a pr...

Economic analysis of emission permit markets, and particularly of the initial permit allocation, have concentrated largely on static approaches. This is somewhat unsatisfactory as the allocation method in subsequent commitment periods may influence the behaviour of the market participants in the current period. For instance, some advocate a system of “rolling grandfathering”, in which later per...

Aquaculture is the fastest growing food production sector worldwide. Global demand for seafood continues to grow, and landbased aquaculture expected grow in order meet increasing market demand. In this context, marine systems are moving towards land-based farming. However, due large volumes of wastewater with high salinity other fish-metabolism derived pollutants (e.g., nitrogen compounds), it ...

Traits that permit successful invasions have often seemed idiosyncratic, and the key biological traits identified vary widely among species. This fundamentally limits our ability to determine the invasion potential of a species. However, ultimately, successful invaders must have positive growth rates that longer term result in higher biomass accumulation than competing established species. In m...