Carbonate budgets and reef production states: a geomorphic

Our Partners - Data Attribution

Reef to island sediment connections on a Maldivian carbonate platform: using benthic ecology and biosedimentary depositional facies to examine island‐building potential. Earth Surface Processes and Landforms, 41(13), 1815-1825.

Diversity | Free Full-Text | Turbid Coral Reefs: Past

Consequently, current average rates of vertical reef accretion, calculated using carbonate budgets, are estimated at 0.35-2.76 mm year −1 . This suggests that these reefs are currently in a state of limited reef growth.

Carbonate budgets as indicators of functional reef "health

Quantifying reef carbonate budget states is a methodologically complex process and can be approached from different perspectives, Carbonate budgets and reef production states: a geomorphic perspective on the ecological phase-shift concept. Coral Reefs, 27 ( ), pp. 853-866, 10.1007/s00338-008-0418-z.

Tidal Wetlands and Estuaries - Second State of the Carbon

Figure 15.4: Budgets are given in teragrams of carbon (Tg C) for (a) the conterminous United States (CONUS) and (b) North America, with errors of ± 2 standard errors. SHRINK The North American carbon budget for tidal wetlands and estuaries (see Figure 15.4b) is similar to the CONUS budget except that most of the fluxes are larger.

National Oceanic and Atmospheric Administration

National Coral Reef Monitoring Program: Carbonate Budget data of Bird Key Reef in the Dry Tortugas from 2015-09-01 to 2015-09-03 (NCEI Accession 0159176). Version 1.1. NOAA National Centers for Environmental Information. Dataset.

CiteSeerX — Caribbean-wide decline in carbonate production

Calculated accretion rates (mmyear 1) for shallow fore-reef habitats are also close to an order of magnitude lower than Holocene averages. A live coral cover threshold of B10 % appears critical to maintaining positive production states. Below this ecological threshold carbonate budgets typically become net negative and threaten reef accretion.

The Geomorphology of the Great Barrier Reef

Perry, C. T. Spencer, T. and Kench, P. S. 2008. Carbonate budgets and reef production states: a geomorphic perspective on the ecological phase-shift concept. Coral

Basic Information about Coral Reefs | US EPA

Hydrocorals, or fire coral, are reef-building hydroids that have a hard calcareous exoskeleton and stinging cells that can cause a burning sensation when touched. Octocorals, or 'soft' corals, include sea fans and sea whips, which grow more like fleshy plants and do not form calcium carbonate skeletal structures.

Publications - Coastal Geology Group

Proceedings, Carbonate Beaches 2000, First International Symposium on Carbonate Sand Beaches, December 5-8, Key Largo, FL, p. 67-81. Rooney, J.J.B. and Fletcher, C.H. (2000) A high resolution, digital, aerial photogrammetric analysis of historical shoreline change and net sediment transport along the Kihei Coast of Maui, Hawaii.

The Coral Sea | eAtlas

The Coral Sea is the body of water east of the Great Barrier Reef, bounded by Papua New Guinea to the north, the Tasman Front to the south, and the west Pacific island chains of the Solomons, Vanuatu and New Caledonia to the east. The Australian portion of the Coral Sea has the Exclusive Economic Zone boundary as its eastern border.

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Geomorphic/Tectonic Control of Sediment Discharge to the

Sediment fluxes from small mountainous rivers, many of which discharge directly onto active margins (e.g., western South and North America and most high-standing oceanic islands), have been greatly underestimated in previous global sediment budgets, perhaps by as much as a factor of three.

Reef Carbonate Productivity During Quaternary Sea Level

Mar 30,  · 6 Quantifying Reef Carbonate Production During Holocene and Pleistocene Times. Throughout the modeled period of time, the predicted productivity oscillates at the frequency of the cycles (Figure 3). The range of variation is considerable, from almost zero to several cubic meters per year, per unit length of coral reef.

Great Barrier Reef | National Geographic Society

The Great Barrier Reef, which extends for over 2,300 kilometers (1429 miles) along the northeastern coast of Australia, is home to over 9,000 known species.There are likely many more—new discoveries are frequently being made, including a new species of branching coral discovered in 2017. This richness and uniqueness make the reef crucial for tourism and the Australian economy—it attracts

Patterns of Sediment Transport Using Foraminifera Tracers

Jul 01,  · INTRODUCTION. Sedimentary features in platform coral reefs consist of rubble and carbonate sand that constitute most of the total reef volume (Ford and Kench, ; Jell and Flood, 1978).The evolution of these sedimentary features is governed by changes in sea level, which directly influence the sediment budget and transport (Harris et al., 2015b).

Changing dynamics of Caribbean reef carbonate budgets

Dec 07,  · Indeed, despite low gross carbonate production rates on Caribbean reefs (average 3.5 G) , about two-thirds of the 19 reefs examined retain low net positive carbonate budgets (rates below 2 G), as reported in , with about a quarter having thus far shifted to net erosional states. In other words, most reefs are not adding much net carbonate to

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