Displacement, diffusion and intensification (DDI) in marine fisheries: A typology for analyzing coalitional stability under dynamic conditions

摘要: Achieving sustainable fisheries management often entails overcoming a range of substantial hurdles, particularly in the case shared, straddling and highly migratory fish stocks. Gaps exist ecological understanding stocks, number fishing nations their respective practices are seldom static, natural anthropogenic pressures can cause dramatic shifts distribution abundance fish. Even for cases which coalitions with coordinated mechanisms exist, such introduce instability into system. This paper describes distinctions that be drawn among destabilizing effects caused by reactive spatial displacement, diffusion or intensification (DDI) activities. A general typology these is introduced based on phenomena observed other policy areas illustrated specific examples from Atlantic Mackerel, Alaska Pollock Skipjack Tuna fisheries. These illustrate contrast between entities, flexible swiftly reacting to changes fisheries, while institutional frameworks ensure fishery resources remarkably slow. The multi-year lag time response entities institutions suggested as main source resulting DDI effects. While this has not been previously applied marine presented generalized allow greater along causes consequences effectiveness cooperation partners resource management.