Economic importance of coral reefs 1. Coral reefs are a great source of income too. (ed.). How coral-reef-based resources protect people during difficult timesCoral reefs can provide       • a resource bank, e.g. Two theories seem to be of some convincing importance. The coral reefs serve as habitats for many plants and animals like sponges, molluscs, echinoderms, fishes, etc. The second study argues that coral reefs play an important role in reducing wave energy and thus protecting coastal beaches from erosion. In many places, the reef may even act as a resource bank, used as a means of saving food for future times of need. About 50 species of corals contribute in the formation of reefs along the Florida keys and in the West-Indies. In many coral-reef areas, tourism is one of the main industries bringing employment, and in many cases is promoted to provide alternatives to fisheries-based livelihoods, and to ensure that local reef resources are conserved. Coral reefs support the highest known biodiversity of marine life, and constitute the largest biologically generated structures on Earth. Income: Coral reefs and related ecosystems have a global estimated value of ‘$2.7 trillion per year, or 2.2% of all global ecosystem service values’, this includes tourism and food. Coral reefs contribute significant economic value to the US public. By one estimate, coral reefs provide economic goods and services worth about $375 billion each year. Despite their great economic and recreational value, coral reefs are severely threatened by pollution, disease, and habitat destruction. Some of these are extractive uses, such as fisheries (i); For example, in coastal communities in northern Mozambique, reef harvests provide key sources of food and cash when agricultural production is low, with the peak in fisheries production coinciding with the period of lowest agricultural stocks. For example, in the South West Island of Tobi, in the Pacific Ocean, young boys use simple hand lines with a loop and bait at the end to develop the art of fishing on the reef. All rights reserved. Coral reefs provide many benefits, sometimes called ecosystem goods and services, which are of high value and critical importance to local and national economies in the Caribbean. Coral polyps, the animals primarily responsible for building reefs, can take many forms: large reef building colonies, graceful flowing fans, and even small, solitary organisms.Thousands of species of corals have been discovered; some live in warm, shallow, tropical seas and others in the cold, dark depths of the ocean. HUMAN IMPACT ON THE REEF 5(a) Importance of Coral Reefs. Immediately after the urchin die off, herbivorous fishes seemed to be rejoicing, for now there was 45% more food for them! 10 ..................... tours in the Caribbean.Benefits for local people include:       • The creation of jobs. This of course has both positive and negative consequences for both the marine environment and the communities involved. The coral reefs are of three kinds, depending on how they are formed. They are therefore limited to the Indo-Pacific, the Central-Western Pacific, and the Caribbean regions north of Bermuda. Copyright © 2013 - 2020 IELTS Mentor. Yet, despite their importance, many coral reefs are at risk. In time it acquired a growth of vegetation. in northern Mozambique. Near-shore fisheries are typically the domain of adult males, in particular where they involve the use of boats, with women and children restricted mainly to shore-based activities. Barrier reefs are like fringing reefs but they are located some distance away from the shore. 05. fire coral, Pocillopora verrucosa and Acropora hemprichii Jwellery and ornaments:Precious corals like Corallium nobile or C. rubrum are used in jewellery and ornaments. The economic importance of this ecosystem is significant. Questions 8-13 Complete the notes below. The upgrading of roads and communications associated with the expansion of tourism may also bring benefits to local communities. There's also a lot of commercial fishing in the area, and conservation groups are always working to protect the reef. Coral colonies grow continuously in size by budding of polyps and often form extensive masses, known as coral reefs. This is a significant factor distinguishing reef-based fisheries from near-shore sea fisheries. Coral reefs are some of the most diverse ecosystems in the world. The ability of the poorer members of the community to access the benefits of tourism is far from guaranteed, and requires development guided by social, cultural and environmental principles. "IELTS Sample Answer & IELTS Preparation", How coral-reef-based resources protect people during difficult times. In addition, their homes are sheltered by the reef from wave action. ECONOMIC IMPORTANCE OF CORAL REEFS KANTHARAJAN G AEM-PA6-01 ICAR-CIFE 2. • Need for 12 ...................... Poorly-planned development can create 13 ......................  with local fishers. Millions of people around the world depend on reefs for food, protection and employment. There is growing recognition that sustainability is a key requirement, as encompassed in small-scale eco-tourism activities, for instance. Choose NO MORE THAN TWO WORDS from the passage for each answer. However, plans for development must be considered carefully. People all across the world rely on these reefs for protection, employment, and food. On-going efforts to assign economic value to nature are revealing new opportunities to manage our environment for more sustainable use and longer-term prosperity. They are not only of great importance for nature, but also have a very high value to us humans. Large quantities of corals are … Corals of the remote geological past formed reef structures that were highly favourable sites for the accumulation of petroleum deposits. By using our website and services, you agree to our use of cookies. Coral reefs are considered to be the backbone of a country’s economy. This website uses cookies to ensure that you get the best user experience on our website. F rom tourism to marine recreation and sport fishing, coral reefs play an important role in the economies of countries all around the world. Subsidence of sea-floor then commenced in the regions of reef followed by upward and outward growth of coral. At low tide, water of channel recedes at quickly exposing a flat bottom surface, called reef flat. Coral reefs often form the backbone of local economies. In the Caribbean, nearly 70% of coral reefs are threatened by human activities—including overfishing, dredging, sewage discharge, increased runoff from agricultural activities, and coastal development (Burke and Maidens 2004). Degradation of They often live adjacent to the reef, and their livelihood revolves around the direct extraction, processing and sale of … Many theories have been advanced to explain coral-reef formation, but none are entirely satisfactory. McManus, in Encyclopedia of Ocean Sciences (Second Edition), 2001. Hundreds of millions of people rely on coral reefs for essential nutrition, livelihoods, protection from life-threatening storms and crucial economic opportunity. The atoll of Bikine, famous for atomic and hydrogen bomb tests, lies in the Pacific Ocean. Another theory, as propounded by Daly, accounts for the lowering of the ocean level by the withdrawal of water for glacial formation. Thus, coral reefs are of much importance to oil industry. As per the statistics, the total yearly earnings of coral reefs computed in the world comes to be $29.8 ​​billion. The red coral and organ pipe coral are used in some indigenous system of medicine in S. India. Thus their role is not only important in providing income for their families, it also underpins the economy of the local village. They bring in tons of tourists. • a tourist attraction, e.g. Coastal protection: coral reefs reduce shoreline erosion by absorbing energy from the waves: they can protect coastal housing, agricultural land and beaches. The lagoon varies from a few to about 90km across. Reefs support millions of people by supplying them a source of food and income. By gradual sinking the island ultimately vanished and the barrier reef became a coral atoll with a central lagoon. The objective of this study was to carry out a comprehensive economic valuation of the coral reefs and associated resources in Guam. Coral reefs are some of the most diverse and valuable ecosystems on Earth. The focus was on valuing the five main uses of coral reefs in Guam. for keeping clams and 8 ......................       • a seasonal back-up, when 9 ...................... products are insufficient,e.g. In Manus, Papua New Guinea, giant clams are collected and held in walled enclosures on the reef, until they are needed during periods of rough weather. Coral reefs serve as good nursery grounds for commercially important fishes. Principal builders of coral reefs are stony corals (Madreporaria), but other important contributors are the hydrocorallines and alcyonarians. They often live adjacent to the reef, and their livelihood revolves around the direct extraction, processing and sale of reef resources such as shell fish and seaweeds. See also: Economic Importance of … Economic importance of coral reefs: Corals of the remote geological past formed reef structures that were highly favourable sites for the accumulation of petroleum deposits. In many cases, tourism asociated with reefs has expanded to transform the entire economy of a region. Coral reefs provide a less constant source of income than near-shore seas. Coral reefs are economically important for a variety of reasons. Similarly, in the Surin Islands of Thailand, young Moken boys spend much of their time playing, swimming and diving in shallow reef lagoons, and in doing so build crucial skills for their future daily subsistence. ref These activities mean more people nearby, … Citation: Edwards, P. E. T. Key economic and social benefits associated with healthy coral reefs include high fishery yields, high tourism-related incomes, protection from coastal erosion, and good nutri-tion for coastal communities.174 The great diversity of life on coral reefs is also being explored for bioactive com- Questions 1-7 Do the following statements agree with the information given in Reading Passage 307? Most notable example of barrier reef is the Great Barrier Reef along the North-eastern coast of Australia. The coral reefs add a lot to Australia's economy, mostly because they are a really popular tourist attraction--more than 2 million people visit the Great Barrier Reef each year. The long spined black sea urchin is responsible for grazing 45% of the food (mainly algae) on coral reefs, which is huge when you think of the number of different fishes and invertebrates living in and around coral reefs. Coral skeletons serve as raw material for the preparation of lime, mortar and cement because of their calcium carbonate and magnesium carbonate content. Some corals are highly priced for their decorative value. This resulted in the exposing of several flat platforms cut out by the action of waves. Boats for use by the inhabitants of Ulithi are constructed on Yap Island.6. In the Caribbean alone, tours based on scuba-diving have attracted 20 million people in one year. On Ulithi Atoll in the western Pacific, women have a distinct role and rights in the distribution of fish catches. They are great fishing locations. Small-scale reef fisheries support the involvement of local women traders and their involvement can give them greater control over the household income, and in negotiating for loans or credit. Coral reef resources also act as a buffer against seasonal lows in other sectors, particularly agriculture. According to this theory, as put forth by Darwin (1831), fringing reef was first formed on the sloping shore of an island. (adsbygoogle = window.adsbygoogle || []).push({}); Factor affecting growth of microorganisms in food, Copyright © 2020 | WordPress Theme by MH Themes. Coral reefs lying close to the shores of some volcanic island or part of some continent are termed fringing reefs. It is about 2,000km long and up to 150 km from shore. For example, someone who harvests sea turtle eggs may choose to sell turtle tours as an alter… In coral reef fisheries, only male traders can apply for finance.7. Decorative value:Some corals are highly priced for their decorative value.eg. These studies also confirm that in order to continue to address the management needs and to build public support for conservation of these resources, economic values must be considered. These mass bleaching events compound stress on reefs from local anthropogenic sources. Reef fish varieties are more colorful than others. It is called a lagoon. Importance. Economic value coral reefs Coral reefs are extraordinarily valuable ecosystems. The importance of coral reefs to environment in terms of economy is that it can actually attract many people to come and see the underwater beauty of our oceans. Poor people with little access to land, labour and financial resources are particularly reliant on exploiting natural resources, and consequently, they are vulnerable to seasonal changes in the availability of those resources. An atoll is also termed a coral island or lagoon island. They: protect coastlines from the damaging effects of wave action and tropical storms It is 10 to 50 fathoms deep and suitable for navigation. the cultural importance of reefs, which can also be expressed in monetary terms. Coral reefs support more species per unit area than any other marine environment, including about 4,000 species of fish, 800 species of hard corals and hundreds of other species. Where tourism development has not been carefully planned, and the needs and priorities of the local community have not been properly recognised, conflict has sometimes arisen between tourism and local, small-scale fishers. Most reefs grew at the rate of 10-200 mm each year. Reef building corals require warm shallow waters (normally above 20. In fact, the variety of life associated with coral reefs rivals that of the tropical forests of the Amazon or New Guinea. Coral skeletons are also helpful in making ridges that may act as natural barriers against sea erosion and cyclonic storms. Coralline algae and Foraminiferan Protozoa also take part in the formation of coral reefs. The diversity of coral reef fisheries, combined with their physical accessibility and the protection they provide against bad weather, make them relatively stable compared with other fisheries, or land-based agricultural production. Most of the exciting reefs could have formed with in a period of 15,000 to 30,000 years. Functions of Coral Reefs: Coral reefs are important for many different reasons aside from supposedly containing the most diverse ecosystems on the planet. Secondary occupations, such as fish processing and marketing activities, are often dominated by women, and offer an important survival strategy for households with access to few other physical assets (such as boats and gear), for elderly women, widows, or the wives of infirm men. The economic importance of coral reefs A lot of people around the world are dependent, or partly dependent, on coral reefs for their livelihoods. This seaward zone is commonly called the edge or front. In boxes 1-7 on your answer sheet, write -TRUE           if the statement agrees with the informationFALSE          if the statement contradicts the informationNOT GIVEN if there is no information on this1. In Palau,  sea cucumbers are seldom eaten during good weather in an effort to conserve their populations for months during which rough weather prohibits good fishing. A lot of people around the world are dependent, or partly dependent, on coral reefs for their livelihoods. Of economic importance As a result of direct revenues from fishing, reefs provide a resource and services that are worth billions of dollars each year .