The economics of enforcement is traditionally modelled using rational agents assumed to act accor... more The economics of enforcement is traditionally modelled using rational agents assumed to act according to their expected economic utility. In this investigation we derive this expectation by implementing a stochastic simulation model to integrate across associated levels of uncertainty using Monte Carlo. The model is developed for the South Georgia toothfish longline fishery, in which legal catches are strictly managed
We aim to identify the important steps in the evolution of the ecosystem approach to management u... more We aim to identify the important steps in the evolution of the ecosystem approach to management under the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR). The first section provides the background to CCAMLR, including the formulation of the convention and its objectives, its operation, and the historical trends in fisheries. Later sections describe (i) the reasons why
To evaluate the risk of childhood leukemia in relation to residential electric and magnetic field... more To evaluate the risk of childhood leukemia in relation to residential electric and magnetic field (EMF) exposures. A case control study based on 88 cases and 133 controls used different assessment methods to determine EMF exposure in the child's current residence. Cases comprised incident leukemias diagnosed at 0-14 years of age between 1985-1993 from a larger study in southern Ontario; population controls were individually matched to the cases by age and sex. Exposure was measured by a personal monitoring device worn by the child during usual activities at home, by point-in-time measurements in three rooms and according to wire code assigned to the child's residence. An association between magnetic field exposures as measured with the personal monitor and increased risk of leukemia was observed. The risk was more pronounced for those children diagnosed at less than 6 years of age and those with acute lymphoblastic leukemia. Risk estimates associated with magnetic fields ten...
Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline f... more Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline fi shing operations were recorded by CCAMLR observers between 2000 and 2002 at South Georgia (Subarea 48.3). Demersal longlines, targeting Patagonian toothfi sh (Dissostichus eleginoides), were deployed in depths of 169 to 2 150 m. Most effort was concentrated along the 1 000 m depth contour. Sperm whales
... there are concentrations of krill close to areas where aquaculture is a key industry such as ... more ... there are concentrations of krill close to areas where aquaculture is a key industry such as Scotland and Norway where Meganyctiphanes norvegica is ... many Crustacea, bearing an eye having the ability to live and adapt to schooling while not being restricted to that mode of life ...
There is ongoing debate regarding the value of market-based instruments, such as certification sc... more There is ongoing debate regarding the value of market-based instruments, such as certification schemes, as an approach to improving the environmental impact of fisheries. This article evaluates the effects of the Marine Stewardship Council on the environmental performance of fisheries over the period before and after certification. A large number of fisheries (n = 447) have undertaken pre-assessments, and in
... Por 10 tanto, se debe utilizar un regimen de lastrado de la linea que incorpore lastres de po... more ... Por 10 tanto, se debe utilizar un regimen de lastrado de la linea que incorpore lastres de por 10 menos 8,5 kg situados a intervalos de 40 m para reducir la captura incidental de aves marinas. ...DIM = Black-browed albatross C = Control PRO = White-chinned petrel T = Treatment ...
... May 2000. Samples were obtained at depths ranging from 200 to 1650 m. The Argos Georgia deplo... more ... May 2000. Samples were obtained at depths ranging from 200 to 1650 m. The Argos Georgia deployed semi-conical pots of c.80cm height. These were constructed of a steel frame and covered with mesh. A collapsible funnel ...
The economics of enforcement is traditionally modelled using rational agents assumed to act accor... more The economics of enforcement is traditionally modelled using rational agents assumed to act according to their expected economic utility. In this investigation we derive this expectation by implementing a stochastic simulation model to integrate across associated levels of uncertainty using Monte Carlo. The model is developed for the South Georgia toothfish longline fishery, in which legal catches are strictly managed
We aim to identify the important steps in the evolution of the ecosystem approach to management u... more We aim to identify the important steps in the evolution of the ecosystem approach to management under the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR). The first section provides the background to CCAMLR, including the formulation of the convention and its objectives, its operation, and the historical trends in fisheries. Later sections describe (i) the reasons why
To evaluate the risk of childhood leukemia in relation to residential electric and magnetic field... more To evaluate the risk of childhood leukemia in relation to residential electric and magnetic field (EMF) exposures. A case control study based on 88 cases and 133 controls used different assessment methods to determine EMF exposure in the child's current residence. Cases comprised incident leukemias diagnosed at 0-14 years of age between 1985-1993 from a larger study in southern Ontario; population controls were individually matched to the cases by age and sex. Exposure was measured by a personal monitoring device worn by the child during usual activities at home, by point-in-time measurements in three rooms and according to wire code assigned to the child's residence. An association between magnetic field exposures as measured with the personal monitor and increased risk of leukemia was observed. The risk was more pronounced for those children diagnosed at less than 6 years of age and those with acute lymphoblastic leukemia. Risk estimates associated with magnetic fields ten...
Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline f... more Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline fi shing operations were recorded by CCAMLR observers between 2000 and 2002 at South Georgia (Subarea 48.3). Demersal longlines, targeting Patagonian toothfi sh (Dissostichus eleginoides), were deployed in depths of 169 to 2 150 m. Most effort was concentrated along the 1 000 m depth contour. Sperm whales
... there are concentrations of krill close to areas where aquaculture is a key industry such as ... more ... there are concentrations of krill close to areas where aquaculture is a key industry such as Scotland and Norway where Meganyctiphanes norvegica is ... many Crustacea, bearing an eye having the ability to live and adapt to schooling while not being restricted to that mode of life ...
There is ongoing debate regarding the value of market-based instruments, such as certification sc... more There is ongoing debate regarding the value of market-based instruments, such as certification schemes, as an approach to improving the environmental impact of fisheries. This article evaluates the effects of the Marine Stewardship Council on the environmental performance of fisheries over the period before and after certification. A large number of fisheries (n = 447) have undertaken pre-assessments, and in
... Por 10 tanto, se debe utilizar un regimen de lastrado de la linea que incorpore lastres de po... more ... Por 10 tanto, se debe utilizar un regimen de lastrado de la linea que incorpore lastres de por 10 menos 8,5 kg situados a intervalos de 40 m para reducir la captura incidental de aves marinas. ...DIM = Black-browed albatross C = Control PRO = White-chinned petrel T = Treatment ...
... May 2000. Samples were obtained at depths ranging from 200 to 1650 m. The Argos Georgia deplo... more ... May 2000. Samples were obtained at depths ranging from 200 to 1650 m. The Argos Georgia deployed semi-conical pots of c.80cm height. These were constructed of a steel frame and covered with mesh. A collapsible funnel ...
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