Manila Bay
Encyclopedia
Manila Bay is a natural harbor which serves the Port of Manila
Port of Manila
The Port of Manila is the largest seaport in the Philippines, and is the premier international shipping gateway to the country. It is located in the vicinity of Manila Bay.-Port Area:...

 (on Luzon
Luzon
Luzon is the largest island in the Philippines. It is located in the northernmost region of the archipelago, and is also the name for one of the three primary island groups in the country centered on the Island of Luzon...

), in the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

.The bay is considered to be one of the best natural harbors in Southeast Asia
Southeast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

 and one of the finest in the world. Strategically located around the capital city of the Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

, Manila Bay facilitated commerce and trade between the Philippines and its neighbouring countries, becoming the gateway for socio-economic development even prior to Spanish occupation. With an area of 1994 km² (769.9 sq mi), and a coastline of 190 km (118.1 mi), Manila Bay is situated in the western part of Luzon and is bounded by Cavite
Cavite
Cavite is a province of the Philippines located on the southern shores of Manila Bay in the CALABARZON region in Luzon, just 30 kilometers south of Manila. Cavite is surrounded by Laguna to the east, Metro Manila to the northeast, and Batangas to the south...

 and Metro Manila
Metro Manila
Metropolitan Manila , the National Capital Region , or simply Metro Manila, is the metropolitan region encompassing the City of Manila and its surrounding areas in the Philippines...

 on the east, Bulacan
Bulacan
Bulacan , officially called the Province of Bulacan or simply Bulacan Province, is a first class province of the Republic of the Philippines located in the Central Luzon Region in the island of Luzon, north of Manila , and part of the Metro...

 and Pampanga
Pampanga
Pampanga is a province of the Philippines located in the Central Luzon region. Its capital is the City of San Fernando, Pampanga. Pampanga is bordered by the provinces of Bataan and Zambales to the west, Tarlac and Nueva Ecija to the north, and Bulacan to the southeast...

 on the north, and Bataan
Bataan
Bataan is a province of the Philippines occupying the whole of the Bataan Peninsula on Luzon. The province is part of the Central Luzon region. The capital of Bataan is Balanga City and it is bordered by the provinces of Zambales and Pampanga to the north...

 on the west and northwest. Manila Bay drains approximately 17000 km² (6,563.7 sq mi) of watershed
Drainage basin
A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 area, with the Pampanga River
Pampanga River
Pampanga River is the second largest river in the island of Luzon, next to Cagayan River and the third largest river in the Philippines...

 contributing about 49% of the freshwater influx. With an average depth of 17 m (55.8 ft), it is estimated to have a total volume of 28.9 billion cubic meters (28.9 cubic km). Entrance to the bay is 19 km (11.8 mi) wide and expands to a width of 48 km (29.8 mi). However, width of the bay varies from 22 km (13.7 mi) at its mouth and expanding to 60 km (37.3 mi) at its widest point.

The islands of Corregidor
Corregidor
Corregidor Island, locally called Isla ng Corregidor, is a lofty island located at the entrance of Manila Bay in southwestern part of Luzon Island in the Philippines. Due to this location, Corregidor was fortified with several coastal artillery and ammunition magazines to defend the entrance of...

 and Caballo divides the entrance into two channels, about 2 miles (3.2 km) towards the North and 6.5 miles (10.5 km) wide on the South side. Mariveles
Mariveles, Bataan
Mariveles is a 1st class municipality in the province of Bataan, Philippines. According to the latest census, it has a population of 102,844 people in 19,460 households...

, in the province of Bataan
Bataan
Bataan is a province of the Philippines occupying the whole of the Bataan Peninsula on Luzon. The province is part of the Central Luzon region. The capital of Bataan is Balanga City and it is bordered by the provinces of Zambales and Pampanga to the north...

, is an anchorage just inside the northern entrance and Sangley Point is the former location of Cavite Naval Base. On either side of the bay are volcanic
Volcano
2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

 peaks topped with tropical foliage: 40 km to the north is the Bataan Peninsula
Bataan Peninsula
The Bataan Peninsula is a rocky extension of the Zambales Mountains, on Luzon in the Philippines. It separates the Manila Bay from the South China Sea...

 and to the south is the province of Cavite
Cavite
Cavite is a province of the Philippines located on the southern shores of Manila Bay in the CALABARZON region in Luzon, just 30 kilometers south of Manila. Cavite is surrounded by Laguna to the east, Metro Manila to the northeast, and Batangas to the south...

.

Across the entrance to Manila Bay are several islands, the largest of which is Corregidor
Corregidor
Corregidor Island, locally called Isla ng Corregidor, is a lofty island located at the entrance of Manila Bay in southwestern part of Luzon Island in the Philippines. Due to this location, Corregidor was fortified with several coastal artillery and ammunition magazines to defend the entrance of...

, located 3 kilometers from Bataan and, along with the island of Caballo, separates the mouth of the bay into the North and South Channels. In the south channel is El Fraile Island and outside the entrance, and to the south, is Carabao Island. El Fraile, a rocky island some 4 acres (1.6 ha) in area, supports the massive concrete and steel ruins of Fort Drum
Fort Drum (El Fraile Island)
Fort Drum , also known as the “concrete battleship,” is a heavily fortified island fortress situated at the mouth of Manila Bay in the Philippines, due south of Corregidor Island. It was occupied by the Japanese in World War II, and was recaptured by the U.S...

, an island fortress constructed by the United States Army to defend the southern entrance of the bay. To the immediate north and south are additional harbors, upon which both local and international ports are situated. Large number of ships at the North and South harbors facilitate maritime activities in the bay. Being smaller of the two harbors, the North Harbor is used for inter-island shipping while the South Harbor is used for large ocean-going vessels.

History

Manila Bay was connected to Laguna Lake (or Laguna de Bai) approximately 3,000 years ago. Recurring episodic
uplifts along the West Marikina Valley Fault caused the two to break up. Interaction between Manila Bay and Laguna Lake occurs only through Pasig River.

The bay was the setting for the Battle of Manila Bay in 1898 in which American troops led by Commodore George Dewey, seized the area.
Significantly, this battle showcased the United States' naval strength when all major Spanish ships were destroyed and captured. With its proud historic past and the place brimming with marine life, Manila Bay became the ocean portal to its epicenter for government, economy and industry. Corregidor Island was annexed by Japanese forces fighting from this bay once again in 1942. Even earlier various other battles were fought from this naval base including the La Naval de Manila in 1646, which finally put a stop gate to the Dutch trials to seize the Philippines.

Today, Manila Bay still remains important for commerce and industry, including fishing, although rapid urban growth and industrialization are contributing to a decline in water quality and deteriorating marine habitats. It also serves a focus for recreation for Metro Manila
Metro Manila
Metropolitan Manila , the National Capital Region , or simply Metro Manila, is the metropolitan region encompassing the City of Manila and its surrounding areas in the Philippines...

 and is a popular destination for walks and for viewing the sunset. Much of the land fronting the bay along Metro Manila
Metro Manila
Metropolitan Manila , the National Capital Region , or simply Metro Manila, is the metropolitan region encompassing the City of Manila and its surrounding areas in the Philippines...

 is reclaimed land which now includes important sites such as the Philippine Senate and the Mall of Asia.

On September 27, 2011, The sea walls of Manila Bay were destroyed by the storm surge caused by Typhoon Pedring, making the baywalk area devastated. Even the US Embassy, Museo Pambata and Sofitel Philippine Plaza were submerged into flooding. It was estimated that the damage would cost P30 million.

Ecosystem

Coastal and marine habitats in the area include upland forests, mangrove, mudflats, sandy beaches, sea grass and coral reefs.

Biodiversity

A total of 19,139 birds belonging to 33 families and 99 species were observed at various monitoring sites along the bay area. The endangered Chinese Egret (Egretta eulophotes) and Black-winged cuckoo-shrike
Cuckoo-shrike
The cuckooshrikes and allies in the Campephagidae family are small to medium-sized passerine bird species found in the subtropical and tropical Africa, Asia and Australasia...

 were sighted in the area. A large
number of migratory birds use the intertidal mudflats, fishponds and saltpans in winter and during the migration seasons.

Large number of commercial fish species such as snappers, sea catfish and mackerels were once abundant in these waters. Their decline ushered in the appearance of squid, shrimp, and small pelagic species such as herrings and anchovies.

Mangroves

The mangrove ecosystem around Manila Bay has both ecological and socioeconomic uses with its association of unique plant and animal species.
Of the original 54,000 hectares of mangroves existing at the turn of the 20th century, only 794 hectares are remaining as recorded in 1995. A few of the mangrove swamps remaining in Pampanga Bay are of considerable value for research and conservation education. As natural habitats, mangroves considerably help in acting as a protective buffer against cyclones and storms.

Predomiant in the bay area are Avicennia marina
Avicennia marina
Avicennia marina, commonly known as grey mangrove or white mangrove, is a species of mangrove tree classified in the plant family Acanthaceae...

 (gray or white mangrove) together with 15 species of mangroves belonging to 9 families that grow there. In the Bataan area, species of mangrove swamps that are found thriving include:
  • Rhizophora apiculata
    Rhizophora apiculata
    Rhizophora apiculata is a species of plant in the Rhizophoraceae family. It is found in Australia , Guam, India, Indonesia, Malaysia, Micronesia, New Caledonia, Papua New Guinea, the Philippines, Singapore, the Solomon Islands, Sri Lanka, Taiwan,Maldives Thailand, Vanuatu, and Vietnam.Rhizophora...

    (bakhaw lalaki in Filipino)
  • Rhyzophora mucronata (no common name found)
  • Avicennia marina
    Avicennia marina
    Avicennia marina, commonly known as grey mangrove or white mangrove, is a species of mangrove tree classified in the plant family Acanthaceae...

    (gray or white mangrove)
  • Nypa fruticans
    Nypa fruticans
    Nypa fruticans, known as the attap palm , nipa palm , and mangrove palm or buah atap , buah nipah , dừa nước , Ging Pol in Sinhala in Sri Lanka and gol pata , dani . It is the only palm considered a mangrove in the Mangroves Biome...

    (nipa palm)
  • Sonneratia alba (no common name)
  • Scyphiphora hydrophyllacea
    Scyphiphora hydrophyllacea
    Scyphiphora hydrophyllacea is a shrub that is about tall. It is often found in mangrove forests or sandy beaches.-Description:...

    (nilad in Filipino)
  • Sonneratia acida (pagatpat in Filipino)
  • Acanthus ilicifolius
    Acanthus ilicifolius
    Acanthus ilicifolius is a species of plant in the genus Acanthus, native to India and Sri Lanka.It is a small shrub growing along lakes and marshes and sea shores....

    (holly-leaved acanthus)
  • Excoecaria agallocha (milky mangrove)


Plantations of Cocos nucifera (coconut palm) co-exists with the mangroves found in these areas.

Wetlands

Covering about 4,600 hectares, wetlands around Manila Bay are useful in:
  • providing food and habitat for fish, shorebirds and wildlife;
  • maintaining and improving water quality of rivers, lakes and estuaries,
  • acting as reservoir for watersheds, and
  • protecting adjacent and downstream properties of the area from potential flood damage


Mudflats, sand flats, swamps, beaches and rocky shores form part of the wetlands in Manila Bay. Found mostly along the coast of Bataan and
Pampanga, mudflats are suitable habitats for shellfish.

Coral Reefs

Contributing to the balanced functioning of the ecosystem around Manila Bay, coral reefs in the area provide sanctuary for fishes. Consequently, its decline through the years has directly affected the fish yield.

Seagrass Beds

As a diverse ecosystem, seagrass beds provide shelter for fishes and other marine life forms. Like the coral reefs, most of the seagrass beds in Manila Bay are found near its mouth, most notably in the areas of Orion, Marivels, Bataan and Corregidor.

Upland forests

Within the watershed of Manila Bay upland forests abound which are sources of food, timber, fuel wood and other products, as well as habitats for wildlife. These forests provide protection from soil erosion and help maintain the water levels and water quality in rivers and streams. Mount Makiling
Mount Makiling
Mount Makiling, also rarely Mount Maquiling, is a potentially active volcano in Laguna province on the island of Luzon, Philippines. It rises to 1,090 m above mean sea level.-Legend:...

, Angat Dam watershed, La Mesa Dam watershed, Mount Palay-Palay, Mataas na Gulod National Park, Mount Arayat
Mount Arayat
Mount Arayat is an extinct stratovolcano on Luzon Island, Philippines, rising to a height of There is no recorded eruption of the volcano, and its last activity probably dates to the Holocene era.The volcano is located in a flat agricultural region at...

, and other portions of national parks located in Bataan, Bulacan, Rizal and Tarlac form part of these upland forest ecosystem.

Key Developments

Land Reclamation

Largely intended for use in human settlement and industrial development, land reclamation projects contributed to the reduction of mangroves around the area, as well as significant reduction in Metro Manila's shoreline. From 1944 to 1991, approximately 600 m of shoreline have been reclaimed in the northern part.. In 2009, the Pambansang Lakas ng Kilusang Mamamalakaya ng Pilipinas (Pamalakaya) said that there are 7,000 hectares of foreshore areas in Cavite and 5,000 hectares of shallow coastal waters to expand Sangley Point naval base as part of reclamation projects which are mostly funded by foreign investors.

Land Conversion

Conversion of mangrove and mudflat areas into fishponds have impacted the physical features of the bay whereby what used to be irregular shoreline in 1944 has become more linear by 1977. Shoreline retreat continued as man-made structures such as fish pens occupied the coastal areas, with progradation dominant from 1977 to 1991. Most area of the bay, except those near the ports, are largely used as a major fishing ground, with fisheries and aquaculture as the dominant source of livelihood for the inhabitants in the coastal areas.

From 1990, approximately 1,200 hectares of mangroves were cleared, with the land converted for aquaculture or used as salt beds. name="PEMSEA">PEMSEA. (2004) Manila Bay: Refined Risk Assessment. PEMSEA Technical Information Report No. 2004/01. Global Environment Facility / United Nations Development Programme / International Maritime Organization Regional Programme on Building Partnerships in Environmental Management for the Seas of East Asia (PEMSEA). Quezon City, Philippines. In 1993 much of the fisheries resources steadily declined due to over-fishing and over-harvesting.

Waterfront Development

With then Mayor Lito Atienza's program Buhayin ang Maynila (Revitalize Manila), in 2002, the local government made the initiative of enhancing the seaside promenade of Manila through urban renewal, upkeep and improvements. What later became known as Baywalk, the facelift of the 2 km strip of central public space aimed at creating a venue for social interaction and recreation.

With reference to it colonial history, Manila's waterfront expresses power through the dominant classes which uses the Baywalk for exercise, fishing or socialization. The mix of land utilization and social activity provides public access to the edge of the sea, and counters vagrancy and mendicancy. Reviving Manila's waterfront through the Baywalk injected vibrance and historic appreciation into the public space with the statues of Arsenio Lacson
Arsenio Lacson
Arsenio H. Lacson was a Filipino journalist and politician who gained widespread attention as Mayor of Manila from 1952 to 1962. An active executive likened by Time and The New York Times to New York's Fiorello La Guardia, he was the first Manila mayor to be reelected to three terms...

, Ninoy Aquino and Evelio Javier
Evelio Javier
Evelio Bellaflor Javier was a Filipino lawyer, civil servant, politician, and an oppositionist during the authoritarian regime of President Ferdinand Marcos. Due to these activities, he was assassinated by the regime on February 11, 1986...

 placed in key areas.

At the onset, lack of funds hampered the revival of the Baywalk. Eventually, planning for the Baywalk means understanding and regulating diversity of functions with appropriate policy.

Legislation

Manila Bay and its corresponding resources are considered critical recipients of environmental protection. As indicated in the 1987 Constitution (Article II, Section 16) there exists legal basis for environmental protection with the provision that:
“the State shall protect and advance the right of the people to a balanced and healthful ecology in accord with the rhythm and harmony of nature.”

The Manila Bay Declaration 2001 recognized Manila Bay as a source of food, employment and income for the people as well as the gateway for tourism and recreation.

Stockholm Convention on persistent organic pollutants was adopted in 2001 and enforced in 2004

Water Quality

Successive changes in and around Manila Bay are largely due to the intertwining impacts of continued industrialization, unrelenting increase in population, and the incessant human activities catering to livelihood and habitation. These factors are directly degrading the overall environment of Manila Bay and these impacts are manifested in the continued deterioration of the water quality
Water quality
Water quality is the physical, chemical and biological characteristics of water. It is a measure of the condition of water relative to the requirements of one or more biotic species and or to any human need or purpose. It is most frequently used by reference to a set of standards against which...

 within the bay. Several industries operate along the bay in the highly urbanized Metro Manila area, while there are shipyard facilities in Cavite and in Bataan, several more heavy industries, refineries and a power plant are present. At the shipping ports and ferry terminals, an average of 30,000 ships arrive and depart annually to transport passengers, manufactured goods and raw materials. Industrial waste discharges and discharges of untreated domestic wastes from drainage and sewer outlets have contributed to the severe decline in the quality of water and sediments in the bay as well as impacted on the existing marine habitats.

Salinity

According to the study by Jacinto Manila bay has an average surface salinity
Salinity
Salinity is the saltiness or dissolved salt content of a body of water. It is a general term used to describe the levels of different salts such as sodium chloride, magnesium and calcium sulfates, and bicarbonates...

 of 32.6 psu (practical salinity unit). Due to the river influx, the areas near the coasts have low salinity especially in the vicinity of the mouth of the Pasig River in the eastern part of the bay. The bay’s salinity is also affected by strong seasonal variations.

Effects of Soil Erosion

As indicated by the exposed roots of the coconut trees, continuing soil erosion has been a major factor in the changing shoreline of Manila bay. Apart from soil erosion, other environmental processes such as siltation and sea level rise have also contributed to changing the bay’s coastline. In some parts of the bay, however, erosion are prevented by seawalls and breakers particularly in areas where land has been reclaimed..

Pollution

With the presence of ports, sea-based sources of pollution around the bay are from ships and motorized boats. Twelve oil spills were recorded in 1995, but it was in 1999 where the highest total volume of oil spill occurred in the Manila South Harbor and Limay, Bataan.. Increased presence of oil and grease in the waters are attributed to maritime activities at the harbors, together with the presence of oil terminals and the discharges from industries. These factors directly impacted the health of Manila Bay's waters.

Aside from oil spills, trace metals such as copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

, cadmium
Cadmium
Cadmium is a chemical element with the symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Similar to zinc, it prefers oxidation state +2 in most of its compounds and similar to mercury it shows a low...

 and zinc
Zinc
Zinc , or spelter , is a metallic chemical element; it has the symbol Zn and atomic number 30. It is the first element in group 12 of the periodic table. Zinc is, in some respects, chemically similar to magnesium, because its ion is of similar size and its only common oxidation state is +2...

 at the surface of the water were found at the bay coming from sea-based and land-based (e.g., domestic sewage, industrial effluents, runoff, combustion emissions, and mining operations) sources.

In 1996, concentrations of 16 commonly used pesticides in surface sediment was found including dichloro-diphenyl-trichloroethane (DDT
DDT
DDT is one of the most well-known synthetic insecticides. It is a chemical with a long, unique, and controversial history....

). Polycyclic aromatic hydrocarbons (PAH) found in Manila Bay sediments have been influenced by human activities. PAH come principally from petrogenic sources (e.g., oil discharges from ships, refineries and industries) and pyrolytic sources (from combustion sources).

Pesticide residues from rice paddy water draining into irrigation canals, which later on empty into river systems and eventually flowing into the surrounding lakes reaches the waters of Manila Bay. Compounds from these pesticide residues find themselves in food items with metamidophos, endosulfan
Endosulfan
Endosulfan is an off-patent organochlorine insecticide and acaricide that is being phased out globally. Endosulfan became a highly controversial agrichemical due to its acute toxicity, potential for bioaccumulation, and role as an endocrine disruptor...

, chlorpyrifos
Chlorpyrifos
Chlorpyrifos is a crystalline organophosphate insecticide that inhibits acetylcholinesterase and is used to control insect pests. It is known by many trade names...

 and diazinon
Diazinon
Diazinon , a colorless to dark brown liquid, is a thiophosphoric acid ester developed in 1952 by Ciba-Geigy, a Swiss chemical company...

 among the common contaminants. While chronic toxic effects on inhabitants of the bay are not found, impairment of marine biota
Biota
Biota may refer to:* Biota , the plant and animal life of a region* Biota , a superdomain in taxonomy* Biota , an evergreen coniferous tree, Platycladus orientalis* Biota , an avant-prog band from Colorado, USA...

were more evident.

In 1998, polychlorinated biphenyl congeners (PCBs), compounds common in transformers, hydraulic fluids, paint additives and pesticides were determined in sediments and oysters sampled from Manila Bay. The increase in the nutrient concentration and presence of nitrate
Nitrate
The nitrate ion is a polyatomic ion with the molecular formula NO and a molecular mass of 62.0049 g/mol. It is the conjugate base of nitric acid, consisting of one central nitrogen atom surrounded by three identically-bonded oxygen atoms in a trigonal planar arrangement. The nitrate ion carries a...

, ammonia
Ammonia
Ammonia is a compound of nitrogen and hydrogen with the formula . It is a colourless gas with a characteristic pungent odour. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or...

 and phosphate
Phosphate
A phosphate, an inorganic chemical, is a salt of phosphoric acid. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Organic phosphates are important in biochemistry and biogeochemistry or ecology. Inorganic phosphates are mined to obtain phosphorus for use in...

 in the bay,from the '80s, through to the '90s and beyond are not only attributed to agricultural runoff and river discharges but also on fertilizers from fishponds.

Rehabilitation

Despite the issues generally associated with developing countries, such as poverty, over-population and food security, there is surprisingly a growing concern for the environmental vitality of Manila Bay. Rehabilitation, which in this case refers to an attempt to improve an aquatic system and prevent further damage to the natural ecosystems,is a responsibility assumed both by government and non-government organizations. The Supreme Court of the Philippines
Supreme Court of the Philippines
The Supreme Court of the Philippines is the Philippines' highest judicial court, as well as the court of last resort. The court consists of 14 Associate Justices and 1 Chief Justice...

 for example had issued the Metro Manila Development Authority an order to “demolish illegal structures and dwellings along riverbanks and waterways connected to Manila Bay by 2015” in March, 2011as an attempt to decrease mass occurrences of water pollution. Projects involving the wider communities include organization of the “Manila Bay Clean Up Run,” which essentially supports the Philippine Environment Agencies with their objectives to raise funding and awareness towards the rehabilitation of Manila Bay’s natural environments.

Sea Level Rise

Global warming
Global warming
Global warming refers to the rising average temperature of Earth's atmosphere and oceans and its projected continuation. In the last 100 years, Earth's average surface temperature increased by about with about two thirds of the increase occurring over just the last three decades...

, which in its simplest context refers to an increase in the earth’s atmospheric temperature and the subsequent result of sea level rise, poses a great threat in the conservation
Conservation
Conservation may refer to:* Conservation movement, to protect animals, fungi, plants and their habitats** Conservation biology, the science of the protection and management of biodiversity...

 of Manila Bay and its bordering cities. With recent studies predicting “the sea level could rise between .75 to 1.9 metres by 2100” and considering the vast landscape of development, growing industries and overly-dense populations, the exponential assets exposed to flood-prone zones evidently become a dire
issue. The Philippine Country Study to Address Climate Change has depicted a proactive approach to this environmental issue through
governance of a detailed impact assessment covering the following elements:
Physical Environment
  • Tidal regimes including low and high levels of water circulation
  • Outlining of seasons to depict periods of high and low rainfall


Habitat and Species
  • Identification of coral species, mangrove forests, ecosystems within the coastlines, as well as nearby agricultural land


Vulnerability Analysis
  • Vulnerability maps were drawn to outline townscape in accelerated sea level timelines. Using such resources pinpoints the populated areas and natural habitats most likely to be inundated as a result of global warming

Challenges

Due to the low profile of environmentalism
Environmentalism
Environmentalism is a broad philosophy, ideology and social movement regarding concerns for environmental conservation and improvement of the health of the environment, particularly as the measure for this health seeks to incorporate the concerns of non-human elements...

 and its objectives within the nation of the Philippines, official awareness of global warming and the investment to applicable research is in itself triumphant. Further steps to meet the challenge of rehabilitation and sea level rise within Manila Bay may include additional research to gain insight to the complex nature of existent ecosystems; investment to coastal protection means such as the implementation of concrete walls; laws and policies dedicated to the protection of habitats and restriction or zoning of developments; as well as public educational programs to increase the intensity of conservation support. Long-term goals for Manila Bay would ideally include the decrease or termination of nearby highly polluting enterprises, implementation effective standards for waste-water discharge and an overall improved water quality
Water quality
Water quality is the physical, chemical and biological characteristics of water. It is a measure of the condition of water relative to the requirements of one or more biotic species and or to any human need or purpose. It is most frequently used by reference to a set of standards against which...

.

External links

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