نتایج جستجو برای: marine protected areas

تعداد نتایج: 532180  

Journal: :IMA Journal of Applied Mathematics 2010

Journal: :Proceedings of the Royal Society of London. Series B: Biological Sciences 2003

Journal: :international journal of environmental research 2010
j.a. vicente r.b. cerezo

the continuous degradation of the marine ecosystem leads to the establishment of marine protected areas (mpas) as a protective measure. because of the wide array of benefits that can be gained upon its establishment, socio-economic contributions were taken into consideration using a descriptive survey method of research among the seven mpas in lingayen gulf. data revealed that members of the fi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Andrew Balmford Pippa Gravestock Neal Hockley Colin J McClean Callum M Roberts

Declines in marine harvests, wildlife, and habitats have prompted calls at both the 2002 World Summit on Sustainable Development and the 2003 World Parks Congress for the establishment of a global system of marine protected areas (MPAs). MPAs that restrict fishing and other human activities conserve habitats and populations and, by exporting biomass, may sustain or increase yields of nearby fis...

2012
Patrick De Leenheer

Overfishing can lead to the reduction or elimination of fish populations and the degradation or even destruction of their habitats. This can be prevented by introducing Marine Protected Areas (MPA’s), regions in the ocean or along coastlines where fishing is controlled. MPA’s can also lead to larger fish densities outside the protected area through spill-over, which in turn may increase the fis...

2000
K. DAVID HYRENBACH KARIN A. FORNEY PAUL K. DAYTON

1. All reserve designs must be guided by an understanding of natural history and habitat variability. 2. Differences in scale and predictability set aside highly dynamic pelagic systems from terrestrial and nearshore ecosystems, where wildlife reserves were first implemented. Yet, as in static systems, many pelagic species use predictable habitats to breed and forage. Marine protected areas (MP...

2006
Ray Hilborn Fiorenza Micheli Giulio A. De Leo

Previous models of marine protected areas (MPAs) have generally assumed that there were no existing regulations on catch and have frequently shown that MPAs, by themselves, can be used to maintain both sustainable fish stocks and sustainable harvests. We explore the impact of implementing an MPA in a spatially structured model of a single-species fish stock that is regulated by total allowable ...

Journal: :Current Biology 2006
Peter Kareiva

Socioeconomic and ecological analyses of eleven coral reef conservation efforts make clear that marine protected areas are not the answer, and that in fact support of local communities is far more important than some government mandated 'fishing closure'. Apparently there are marine 'paper parks' just as there are terrestrial 'paper parks'.

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2015
Elizabeth A Fulton Nicholas J Bax Rodrigo H Bustamante Jeffrey M Dambacher Catherine Dichmont Piers K Dunstan Keith R Hayes Alistair J Hobday Roland Pitcher Éva E Plagányi André E Punt Marie Savina-Rolland Anthony D M Smith David C Smith

Models provide useful insights into conservation and resource management issues and solutions. Their use to date has highlighted conditions under which no-take marine protected areas (MPAs) may help us to achieve the goals of ecosystem-based management by reducing pressures, and where they might fail to achieve desired goals. For example, static reserve designs are unlikely to achieve desired o...

2014
Brendan P. Kelaher Melinda A. Coleman Allison Broad Matthew J. Rees Alan Jordan Andrew R. Davis

Networks of no-take marine reserves and partially-protected areas (with limited fishing) are being increasingly promoted as a means of conserving biodiversity. We examined changes in fish assemblages across a network of marine reserves and two different types of partially-protected areas within a marine park over the first 5 years of its establishment. We used Baited Remote Underwater Video (BR...

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