A simple bieconomic model (the Gordon-SChaefer model) is estimated for three species of tuna in the Eastern Tropical Atlantic. The model conformed well to the data and afforded estimates of maximum sustainable yield, bioeconomic and open access equilibria. Strong marginal stock effects were...

Bioeconomics to date has focused almost exclusively on lumped parameter models where the resource is described by a single state variable defined as biomass. While such models are convenient mathematically they may be inappropriate in fisheries where recruitment and fecundity are dependent on...

The Magnuson fisheries Conservation and management Act (MFCMA) was enacted and implemented in 1977. In an analysis of data collected by the National Marine Fisheries Service one observes a significant increase in the landings of fish and shellfish and in the nominal and real exvessel revenue,...

The development of offshore oil and gas, the mining of deep sea minerals and the disposal of wastes through ocean dumping have raised important questions about the way we harvest ocean resources and use the marine environment. From an economic perspective all of the above activities involve...

The New York City Watershed Agricultural Program (NYCU7AJP) seeks to reduce the potential for phosphorus movement from farms to surface waters. Toward this objective, a "Phosphorus Index for Site Evaluation" P-Index) provides planners in the NYCWAP with a tool for identifying problems and...