Daniel Suman | University of Miami (original) (raw)

Papers by Daniel Suman

Environmental Science and Technology Library, 1996

... 1996 Khmer Academic Publishers. ... Lambert, CE, Moulin, C, Guillard, F., Chazette, P., Guell... more ... 1996 Khmer Academic Publishers. ... Lambert, CE, Moulin, C, Guillard, F., Chazette, P., Guelle, W „Poitou, J. & Dulac, F.(1995) Ten-year (1983-1992) monitoring of Saharan dust concentrations over the Mediterranean Sea using Meteosat data, Conference, The Impact of African ...

Variations in carbonate flux and dissolution, which occurred in the equatorial Atlantic during th... more Variations in carbonate flux and dissolution, which occurred in the equatorial Atlantic during the last 24,000 years, have been estimated by a new approach that allows the point-by-point determination of paleofluxes to the seafloor. An unprecedented time resolution can thus be obtained which allows sequencing of the relatively rapid events occurring during deglaciation. The method is based on observations that the flux of unsupported 230Th into deep-sea sediments is nearly independent of the total mass flux and is close to the production rate. Thus excess 230Th activity in sediments can be used as a reference against which fluxes of other sedimentary components can be estimated. The study was conducted at two sites (Ceará Rise; western equatorial Atlantic, and Sierra Leone Rise; eastern equatorial Atlantic) in cores raised from three different depths at each site. From measurements of 230Th and CaCO3, changes in carbonate flux with time and depth were obtained. A rapid increase in carbonate production, starting at the onset of deglaciation, was found in both areas. This event may have important implications for the postglacial increase in atmospheric CO2 by increasing the global carbonate carbon to organic carbon rain ratio and decreasing the alkalinity of surface waters (and possibly the North Atlantic Deep Water). Increased carbonate dissolution occurred in the two regions during deglaciation, followed by a minimum during mid-Holocene and renewed intensification of dissolution in late Holocene. During the last 16,000 years, carbonate dissolution was consistently more pronounced in the western than in the eastern basin, reflecting the influence of Antarctic Bottom Water in the west. This trend was reversed during stage 2, possibly due to the accumulation of metabolic CO2 below the level of the Romanche Fracture Zone in the eastern basin.

The low-lying subtropical Florida Peninsula, surrounded on three sides by the sea, is highly vuln... more The low-lying subtropical Florida Peninsula, surrounded on three sides by the sea, is highly vulnerable to the manifestations of climate change. Rising sea levels are already responsable for significant coastal erosion that threatens infrastructure, real estate, and Florida’s subtropical habitats. The State lies in the path of hurricanes whose winds and storm surges pose great threats to life and property. Rising temperatures are likely to impact the most vulnerable sectors of the population, adversely impact agriculture, and threaten the health of Florida’s coral reef ecosystems. Some local governments are beginning to address the threats. However, the State of Florida irresponsibly continues to take a “business-as-usual” path.

Yearbook of International Environmental Law, 2010

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Ocean & Coastal Management, 2007

Panama's first experience in integrated coastal management took the form of a pilot proj... more Panama's first experience in integrated coastal management took the form of a pilot project in Darien Province in eastern Panama. The project, funded by the Inter-American Development Bank, was part of package of numerous development activities comprising ...

Bulletin of Marine Science, 2000

Executive Summary: This study describes the socio-economic characteristics of the US Caribbean tr... more Executive Summary: This study describes the socio-economic characteristics of the US Caribbean trap fishery that encompasses the Commonwealth of Puerto Rico and Territory of the US Virgin Islands. In-person interviews were administered to one hundred randomly ...

Frontiers in Marine Science

Marine protected areas (MPAs) are a key tool for achieving goals for biodiversity conservation an... more Marine protected areas (MPAs) are a key tool for achieving goals for biodiversity conservation and human well-being, including improving climate resilience and equitable access to nature. At a national level, they are central components in the U.S. commitment to conserve at least 30% of U.S. waters by 2030. By definition, the primary goal of an MPA is the long-term conservation of nature; however, not all MPAs provide the same ecological and social benefits. A U.S. system of MPAs that is equitable, well-managed, representative and connected, and includes areas at a level of protection that can deliver desired outcomes is best positioned to support national goals. We used a new MPA framework, The MPA Guide, to assess the level of protection and stage of establishment of the 50 largest U.S. MPAs, which make up 99.7% of the total U.S. MPA area (3.19 million km2). Over 96% of this area, including 99% of that which is fully or highly protected against extractive or destructive human acti...

Although they comprise less than 1% of the world's tropical forests, mangrove ecosystems prov... more Although they comprise less than 1% of the world's tropical forests, mangrove ecosystems provide significant ecosystem services to coastal regions and the people residing there. Despite their contributions, worldwide mangrove losses are significant. This manuscript describes some of the diverse factors that create challenges to effective mangrove management, such as their open access nature, the absence of assignment of property and use rights to local communities, the difficulty recognizing and comparing the values of the long-term nonconsumptive services that mangroves provide with the immediate short-term benefits of mangrove destruction and conversion to alternative uses, and the overlapping authority and contradictory missions of the multiple government institutions responsible for mangrove ecosystems. In recent decades the efforts of several international organizations have led to a series of principles around which good consensus exists. This manuscript explores the most ...