Traditional productivity measures have been much less prevalent than other measures of economic and biological performance in fisheries economics. It has been increasingly recognized, however, that modeling and measuring fisheries' production relationships is central to understanding and ultimately correcting the repercussions of externalities and poorly designed regulations. We use a...
A key element in evaluating fishery management strategies is to examine their effects on the economic performance of fishery participants, yet nearly all empirical studies of fisheries focus on fishing as opposed to processing. However, the economic benefits derived from fish stocks are largely determined by the revenue generated from...
The sustainable use of natural resources, including the goods and services provided by pasturelands and rangelands, is of growing importance due to climatic uncertainty and population growth. Maintaining high productivity in livestock operations is necessary as land availability diminishes and global populations rise. The potential negative impacts to the environment...
This thesis consists of three studies to better understand the environmental sustainability potential for algal-based biofuels. Initially, a comparison of recent life cycle assessments (LCA) of theoretical full-scale algal biofuel facilities was developed. These studies include varying boundaries and scope, functional units, and technology maturity assumptions. The comparison converted results...
The open access nature of fisheries resources had caused application of excessive fishing effort to most World fisheries. Proper
management of fisheries resources is vital for sustainability and its safe future utilisation. Most attempts to salvage fisheries resources
had so far succeeded but have also created one or more problems....
Understanding genetic differentiation and speciation processes in marine species with high
dispersal capabilities is challenging. The Chilean dolphin, Cephalorhynchus eutropia, is the
only endemic cetacean of Chile and is found in two different coastal habitats: a northern
habitat with exposed coastlines, bays and estuaries from Valparaíso (33°02' S) to Chiloé...
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José Luis Brito, Jorge Gibbons, Valeria Sabaj, Marcelo Flores, A. Rus Hoelzel, Ricardo Matus,
Olivia
A suspected glyphosate-resistant Italian ryegrass (Lolium multiflorum) (OR) population was collected from a filbert (Corylus avellana L.) orchard near Portland, OR. Based on the dose-response experiments conducted in the greenhouse, it was found that the suspected glyphosate-resistant population was approximately fivefold more resistant to glyphosate than the susceptible (S) population....
This dissertation proposes the use of advanced time-varying approaches for modeling the dynamics of the multipath channel in wireless communication networks. These advanced time-varying approaches include linear Kalman innovation models in observable block companion form, and neural network-based models. The e˙ectiveness of these type of models is evaluated through three...
Toxin production by cyanobacterial harmful algal blooms (cyanoHABs) in freshwater systems has lasting ecological and human impacts. Nutrients, light availability, hydrology, and microbial community composition impact the frequency and intensity of toxic cyanoHABs. Climate change will exacerbate toxic cyanoHABs, making real time and predictive monitoring a vital tool for managing...