Illegal foreign fishing for sharks in Northern Australia has increased substantially over the last two decades. This has likely resulted in declines of shark species abundance, with potentially far-reaching impacts on the ecosystem. This, in turn, could also have indirectly affected the legal...

In Thailand, water is life. Recently however, water has been more associated with conflict and problems, both natural and manmade, from drought to floods to dams to pollution. This paper investigates two major problems related to the management of water resources, dry-season allocation and water...

Risk of establishment of the freshwater climbing perch (Anabas testudineus) in mainland Queensland from the Torres Strait is high. The species is dispersed through human assistance and/or attributes that assist its own spread. The species has the potential to out-compete native freshwater and...

This paper analyses a fisheries management strategy, marine reserves switching, in which a non-fishing area is created, removed, or rotated from one site to another according to economic criteria through time. Using a dynamic optimisation framework under uncertainty, with the different fish...

Australian urban water utilities face a significant challenge in designing appropriate demand management and supply augmentation policies in the presence of increasing water scarcity and uncertainty over future dam inflows. This paper considers the design of optimal demand management and supply...

The brushtail possum (Trichosurus vulpecula), introduced to New Zealand in 1858, is a significant conservation pest and a major vector of bovine tuberculosis (Tb; Mycobacterium bovis). Consequently, central and local government agencies now spend more than $30 million (NZD) each year on possum...

One approach to rationalising policies for addressing potentially catastrophic climate change when such policies may prove unnecessary is to suppose the policies provide a form of social insurance even in the presence of pure uncertainty. Then, provided the policies are effective, such insurance...

Environmental policy is evolving rapidly in the international arena with an increasing number of multilateral environmental agreements being negotiated in a range of forums. The issue of risk management has figured prominently in these processes, with the OECD risk reduction strategy for lead...