Environmental Impact and Evaluation (EIA) is the analysis of the conceivable impacts on the surroundings resulting from a proposed project. We are going to discuss the way the construction and procedure of the Marina Barrage and production around Marina Bay can result in destruction of reef and coral progress.
The construction and procedure of marine Barrage and advancement will affect the normal water quality of the marine bay. Simply because these developments and structure will lead to decreased flow of water into the sea. This might also cause change in downstream water quality and conditions. The salinity of the normal water body could be altered by these developments and constructions. Reduced drinking water flow may cause decreased nutrients in the sea and developed of silt which might result in the permanent disturbance of the ecosystem. Eutrophication can be likely to result thus destruction of coral and reef growth (2).
The development of algae along with the corals may end up killing them since sunshine is blocked which is essential for the procedure of photosynthesis. Since this Marina Barrage can be meant for tourist activities, it could conclude with destruction of corals for tourism requirements. Waste dumping can be likely to increase and in addition increased of essential oil spills and other items through the construction. This may wrap up contaminating the water resulting in the loss of life of corals. Oxygen levels are literary essay likely to decrease resulting to loss of life of coral reefs. Dredging and dynamiting procedure in this job may conclude in the removal of supplies from the living reef.
According to CortÃ©s (2003), the development may cause increased population which may result in increased strain on the water resources. Extra corals will tend to be removed for purposes of souvenir, rings and critical reaction other needs. Turbidity is also likely to increase because of particles floating on drinking water. This avoids light from penetrating the normal water and therefore the corals suffer. Corals usually flourish in clean and pure water.
Construction can also lead to soil erosion. This outcomes in more particles finding yourself in the water body which covers the corals. This â€˜smoothersâ€™ the corals and result in their death. This is because of this of destruction of mangrove and additional tree species which become filters of sediments. In this case a lot of vegetation may be destroyed in constructing and developing marine barrage.
The corals are incredibly important since they are a way to obtain tourism and also assist in controlling water currents, good waves and storms. Reefs will be also sources of medicine and are used in treatment of a variety of diseases such as for example leukemia, heart disease and in addition take care of ulcers. The corals also use carbon dioxide to form their shells and therefore in a way prevent and minimizes pollution (3).
During the production of marina bay, sediment plume monitoring of the dredging and reclamation gets results are done constantly because they are considered the top priority. Should a direct effect on coral reefs come to be anticipated, mitigation measures must be put in spot to reduce or taken out the effect. The sediment plume are monitored using a combination of desktop and discipline equipment with the calculations of the daily spill coupled with the concentrations of the full total suspended solids documented by on the net optical sensors, secchi depth monitoring and water top quality surveys. Water quality surveys to check the caliber of water are also done regularly on a periodic basis to track record the water quality conditions around the development blog. Optical sensors had been deployed on the seabed at numerous places to monitor water top quality. Turbidity, heat range, PH and dissolved oxygen levels will be monitored by a combination of sensors in order to enable preventive procedures to be undertaken. One trouble faced is normally that the turbidity sensors at the website cannot differentiate between the loadings created from dredging and reclamation actions, and all natural variability in background circumstances.
Lastly translocation actions were also deemed and the corals located directly below the expansion site were relocated to some other pre-selected location. Separate analysis must first be carried out to define a suitable relocation site for this. One good thing about this mitigation measure is definitely that translocated corals will often have high survival level of approximate 90%. Divers involved in the relocation of corals should be properly trained in order not to harm the corals. Divers oftentimes face difficulty due to poor visibility due to silt suspended in the normal water. Visibility may be so very bad that divers may have to bump into coral to notice them. This will reduce the number of coral reef succumbing to death.
New mitigation measures that may be implemented are the creation of artificial reefs to supply compensatory mitigation for impacts to hardbotton habitat from development activities. The selection of resources for artificial reef construction is important. The usage of hard and tender corals, sponges vary and factors like the depth of water where reefs to be developed and the availability of crevice space for shelter must be considered.
Another measure is the use of surveying techniques in the design and siting of costal development projects in order to avoid and minimize adverse environmental impacts. Modern times have seen the improvements in high-classification surveying technology and 3-D laser beam scanning technology which will help in increased confidence in survey info, reduced need to return to site to double check or acquire additional data, faster delivery of finished survey, the richness and top quality of the survey is improved (4). One example is the Laser beam Airborne Depth Sounder (LADS) that’s useful in identifying the seafloor topography and position of hardbottom areas which allows for improvements in style, siting and impression minimization. Even so this technology remains expensive in comparison to ground survey techniques.
In conclusion, the building and advancement of Marina Barrage around Marina Bay in Singapore will probably lead to destruction of coral reef. This may lead to death and decreased numbers of the coral reef. The impacts can include change in water quality, eutrophication, and reduced move of water which in a way will affect the development of coral reefs.