scholarly journals An Interdisciplinary Erosion Mitigation Approach for Coral Reef Protection – A Case Study from the Eastern Caribbean

10.5772/35709 ◽  
2012 ◽  
Author(s):  
Carlos E. ◽  
Juan M. ◽  
Edwin A.
Keyword(s):  
Coral Reef ◽  
Eastern Caribbean ◽  
Erosion Mitigation ◽  
Coral Reef Protection

scholarly journals Evolution of a public intellectual: coral reef biologist Jeremy Jackson

2017 ◽  
Vol 16 (01) ◽  
pp. C04
Author(s):  
Randy Olson
Keyword(s):  
Coral Reef ◽  
Public Intellectual ◽  
Public Intellectuals ◽  
The Public ◽  
The Media

This commentary is both a case study of the evolution of one public intellectual, and an analysis of how he has broadened his voice beyond the standard academic bubble. His story gives a perspective on the question of, “How do public intellectuals get their start?” They almost certainly begin as “mere” intellectuals — the public part comes later. But how? How does a studious academic go from following the media to being part of the media?

scholarly journals Transects, quadrats, or points? What is the best combination to get a precise estimation of a coral community?

2019 ◽  
Author(s):  
Luis M. Montilla ◽  
Emy Miyazawa ◽  
Alfredo Ascanio ◽  
María López-Hernández ◽  
Gloria Mariño-Briceño ◽  
...  
Keyword(s):  
Community Structure ◽  
Coral Reef ◽  
Effect Size ◽  
Standard Error ◽  
Scleractinian Coral ◽  
Statistical Power ◽  
Coral Community ◽  
Sampling Effort ◽  
Precise Estimation

ABSTRACTThe characteristics of coral reef sampling and monitoring are highly variable, with numbers of units and sampling effort varying from one study to another. Numerous works have been carried out to determine an appropriate effect size through statistical power, however, always from a univariate perspective. In this work, we used the pseudo multivariate dissimilarity-based standard error (MultSE) approach to assess the precision of sampling scleractinian coral assemblages in reefs of Venezuela between 2017 and 2018 when using different combinations of number of transects, quadrats and points. For this, the MultSE of 36 sites previously sampled was estimated, using four 30m-transects with 15 photo-quadrats each and 25 random points per quadrat. We obtained that the MultSE was highly variable between sites and is not correlated with the univariate standard error nor with the richness of species. Then, a subset of sites was re-annotated using 100 uniformly distributed points, which allowed the simulation of different numbers of transects per site, quadrats per transect and points per quadrat using resampling techniques. The magnitude of the MultSE stabilized by adding more transects, however, adding more quadrats or points does not improve the estimate. For this case study, the error was reduced by half when using 10 transects, 10 quadrats per transect and 25 points per quadrat. We recommend the use of MultSE in reef monitoring programs, in particular when conducting pilot surveys to optimize the estimation of the community structure.

scholarly journals Modeling regional coral reef responses to global warming and changes in ocean chemistry: Caribbean case study

2011 ◽  
Vol 109 (3-4) ◽  
pp. 375-397 ◽  
Author(s):  
R. W. Buddemeier ◽  
Diana R. Lane ◽  
J. A. Martinich
Keyword(s):  
Global Warming ◽  
Coral Reef ◽  
Ocean Chemistry

scholarly journals Coral Reef Ecosystem Monitoring Using Remote Sensing Data: Case Study in Owi Island, Biak, Papua

2016 ◽  
Vol 33 ◽  
pp. 600-606 ◽  
Author(s):  
Dominggus Samuel H.L.M.K. Awak ◽  
Jonson Lumban Gaol ◽  
Beginer Subhan ◽  
Hawis H. Madduppa ◽  
Dondy Arafat
Keyword(s):  
Remote Sensing ◽  
Coral Reef ◽  
Remote Sensing Data ◽  
Coral Reef Ecosystem ◽  
Ecosystem Monitoring ◽  
Sensing Data ◽  
Reef Ecosystem

scholarly journals Improved Coastal Erosion Prevention Using a Hybrid Method with an Artificial Coral Reef: Large-Scale 3D Hydraulic Experiment

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2801
Author(s):  
Taeyoon Kim ◽  
Seungil Baek ◽  
Yongju Kwon ◽  
Jooyong Lee ◽  
Sung Min Cha ◽  
...  
Keyword(s):  
Coral Reef ◽  
Hybrid Method ◽  
Coastal Erosion ◽  
Large Scale ◽  
Local Scour ◽  
Return Flow ◽  
Structural Failure ◽  
Submerged Breakwater ◽  
Sediment Transportation ◽  
Erosion Mitigation

Coastal erosion, a worldwide social issue, has garnered substantial attention. Numerous methods have been implemented to control coastal erosion problems; however, the presence of rigid structures limits erosion mitigation, thereby causing various challenges. For instance, in the case of submerged breakwaters, local scour in front of the structure and scour caused by the flow occurring in open inlets affect the subsidence and stability of the structure and can also cause structural failure. To solve these problems, this paper proposes a hybrid method of using a submerged breakwater with an artificial coral reef installation; further, this study evaluates the attenuation of waves and mitigation of sediment transportation through large-scale 3D hydraulic experiments. We found that the hybrid method with an artificial coral reef installed in the open inlet shows excellent wave control and plays a clearly beneficial role in the advancement of the shoreline. The artificial coral reef method reduced the return flow generated by the drag force at the breakwater shoulder and open inlet. In addition, scour at the breakwater shoulder was inhibited by collecting the sand escaping offshore. Simultaneously, scour at the open inlet was also mitigated. The application of the hybrid method compensated for the problems caused by local scour and erosion in the submerged breakwater, thereby leading to the improvement of its function. Therefore, the hybrid method proposed in this paper was determined to be applicable not only for submerged breakwaters, but also for various structures for controlling coastal erosion.

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