This presentation provides an overview of coral reefs, including their importance, types, threats, and conservation efforts. It discusses the key points that coral reefs are highly biodiverse ecosystems that are economically and environmentally valuable but also face significant threats from climate change, overfishing, pollution, and development. Coral bleaching is highlighted as a major threat associated with rising water temperatures from climate change.
This presentation is for my school assessment on global environments. I chose coral reefs. My project explains coral reefs and the geographical processes involved with it as well.
Marine Scoops Guide To Coral Reefs (Part 1/3)Marine Scoop
A brief introduction to coral biology, reef formation and coral reproduction. Check out more at www.marinescoop.com and sign up to our weekly newsletter to receive parts II and III as soon as they are released! Part II will cover natural threats to coral reefs, coral bleaching, reef pollution, reef sedimentation, coral reef acidification and coral disease. Part III will cover overexploitation of reefs, destructive fishing practices on reefs, coral reef management and marine protected areas. Feel free to suggest another marine ecosystem to cover!
This presentation is for my school assessment on global environments. I chose coral reefs. My project explains coral reefs and the geographical processes involved with it as well.
Marine Scoops Guide To Coral Reefs (Part 1/3)Marine Scoop
A brief introduction to coral biology, reef formation and coral reproduction. Check out more at www.marinescoop.com and sign up to our weekly newsletter to receive parts II and III as soon as they are released! Part II will cover natural threats to coral reefs, coral bleaching, reef pollution, reef sedimentation, coral reef acidification and coral disease. Part III will cover overexploitation of reefs, destructive fishing practices on reefs, coral reef management and marine protected areas. Feel free to suggest another marine ecosystem to cover!
Planning for the Unplannable: Physical Security Challenges in MuseumsWest Muse
This session examines security challenges in our society that currently impact museums. Learn how to assess the vulnerabilities of your museum regardless of its size, as well as how to employ strategies to improve your museum's security posture. Come away with practical solutions to museum security challenges, and an introduction to active shooter training that focuses on museum safety. #trending
Coral reef Threats, conservation and Restoration.pptxVIRENDRA KUMAR
Coral reefs are some of the most diverse ecosystems in the world. About 25% of the ocean's fish depend on healthy coral reefs. Unfortunately, coral reef ecosystems are severely threatened. Some threats are natural, such as diseases, predators, and storms. Other threats are caused by people, including pollution, sedimentation, unsustainable fishing practices, and climate change, which is raising ocean temperatures and causing ocean acidification. Saving and restoring the world's coral reefs requires a multi-pronged approach that ranges from the local to the global level.
A2 CAMBRIDGE GEOGRAPHY: COASTAL ENVIRONMENTS - CORAL REEFS. It contains: what are coral reefs, the development of corals, growth rates, polyps and algae, reef formation, fringing reefs, barrier reefs, atolls, threats to coral.
A2 Geography Revision for Coastal Environments, subchapter 8.3 Coral Reefs. It is suitable for Year 13 Geography, Cambridge Examination in November 2016. It contains: key terms and definitions, a topic summary, sketches and descriptions, additional work (6 questions for testing your knowledge) and some suggested websites.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
4. CORAL REEFS are the most diverse & beautiful of all the marine habitats . Coral reefs are the aragonite structures produced by living organisms, found in shallow, tropical marine waters with little to no nutrients in the waters.
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6. T he reef is topographically complex. Much like a rain forest, it has many strata and areas of strong shade, cast by the overtowering coral colonies. Because of the complexity, thousands of species of fish and invertebrates live in association with reefs, which are by far our richest marine habitats.
7. I n Caribbean reefs, for example, several hundred species of colonial invertebrates can be found living on the undersides of platy corals. It is not unusual for a reef to have several hundred species of snails, sixty species of corals, & several hundred species of fish. Of all ocean habitats, reefs seem to have the greatest development of complex symbiotic associations.
8. Fringing reef off the coast of Eliat, Israel. Coral reefs can take a variety of forms, defined in following; • APRON REEF – short reef resembling a fringing reef, but more sloped; extending out and downward from a point or peninsular shore. • FRINGING REEF – reef that is directly attached to a shore or borders it with an intervening shallow channel or lagoon. • BARRIER REEF – reef separated from a mainland or island shore by a deep lagoon; see Great Barrier Reef. • PATCH REEF – an isolated, often circular reef, usually within a lagoon or embayment. • RIBBON REEF – long, narrow, somewhat winding reef, usually associated with an atoll lagoon. • TABLE REEF – isolated reef, approaching an atoll type, but without a lagoon. • ATOLL REEF – a more or less circular or continuous barrier reef extending all the way around a lagoon without a central island; see atoll. • BANK REEF – Bank reefs are larger than patch reefs and are linear or semi-circular in outline.
9. Global Threats to Coral Reefs All around the world, much of the world's marine biodiversity face threats from activities and events such as • Coastal development; • Overfishing; • Inland pollution; • Global climate change. The 2004 edition of Status of Coral Reefs Around the World lists the following top 10 emerging threats in these three categories: Global Change Threats These are: • Coral bleaching - caused by elevated sea surface temperatures due to global climate change; • Rising levels of CO2 • Diseases, Plagues and Invasives - linked to human disturbances in the environment.
10. Direct Human Pressures These are: • Over-fishing (and global market pressures) - including the use of damaging practices (bomb and cyanide fishing); • Sediments - from poor land use, deforestation, and dredging; • Nutrients and Chemical pollution • Development of coastal areas - for urban, industrial, transport & tourism developments. The Human Dimension - Governance, Awareness & Political Will These are: • Rising poverty, increasing populations,alienation from the land • Poor capacity for management and lack of resources • Lack of Political Will, and Oceans Governance
11. Climate Change Impacts; The new emerging threat The above-mentioned Status of Coral Reefs Around the World,2004 says that “The major emerging threat to coral reefs in the last decade has been coral bleaching and mortality associated with global climate change.” It is believed that almost all species of corals were affected by high sea surface temperatures during 1998 which led to global coral bleaching and mortality.
12. Coral bleaching refers to the loss of color of corals due to stress-induced expulsion of symbiotic unicellular algae . The corals that form the structure of the great Reef e co systems of tropical seas depend on a symbiotic relationship with photosynthesizing unicellular algae called zoo xanthellae that live within their tissues. Zooxanthellae give coral its particular coloration, depending on the clade living within the coral.Under stress, corals may expel their zooxantheallae ,which leads to a lighter or completely white appearance , hence the term "bleached". CORAL BLEACHING
13. Coral bleaching is a vivid sign of corals responding to stress, which can be induced by any of: • Increased or reduced water temperatures (often attributed to global warming) • Solar Irradiance (photosynthetically active radiation and ultraviolet band light) • Changes in water chemistry (in particular ocean acidification) • Sedimentation (can be contributed to silt runoff) • Pathogen infections • Salinity High sea surface temperature (SST) coupled with high irradiance is known to be the primary factor in summer coral bleaching. Wind, exposure at low tide, & weather conditions can contribute to coral bleaching.
14. Once bleaching begins, Healthy corals tend to continue to bleach even if the stressor is removed. If the coral colony survives it often requires weeks to months for the remaining symbiont population to reach a normal density . Following bleaching, corals may be recolonised by the same species of zooxanthellae, or by a different species.Different types of zooxanthellae respond differently to environmental conditions & may be more resistant to coral bleaching than other species.
16. O ther coral reef provinces have been permanently damaged by warm sea temperatures, most severely in the Indian Ocean. Up to 90% of coral cover has been lost in the Maldives, Sri Lanka, Kenya and Tanzania and in the Seychelles. B ioerosion (coral damage) such as this may be caused by coral bleaching. Pathogen infection
17. Coral reefs are home to a variety of tropical or reef fish. Other fish groups found on coral reefs include groupers, snappers, grunts and wrasses. Over 4,000 species of fish inhabit coral reefs. Reefs are also home to a large variety of other organisms, including sponges, Cnidarians, worms, crustaceans ,molluscs, echinoderms & sea snakes. Aside from humans, mammals are rare on coral reefs, with visiting cetaceans such as dolphins being the main group. A few of these varied species feed directly on corals, while others graze on algae on the reef and participate in complex food webs.
18. A number of invertebrates, collectively called cryptofauna, inhabit the coral rock substrate itself, either boring into the limestone surface or living in pre-existing voids & crevices. Those animals boring into the rock include sponges, bivalve Molluscs ,& Sipunculans. Those settling on the reef include many other species, particularly crustaceans & Polychaete worms.
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20. Coral Reefs Are DYING Around the World The Status of Coral Reefs Around the World, 04 notes that: • 20% of the world's coral reefs have been effectively destroyed and show no immediate prospects of recovery; • Approximately 40% of the 16% of the world's reefs that were seriously damaged in 1998 are either recovering well or have recovered; • The report predicts that 24% of the world's reefs are under imminent risk of collapse through human pressures; and a further 26% are under a longer term threat of collapse; A report from the World Resources Institute (WRI) in 1998 suggested that as much as 60 % of the earth's coral reefs are threatened by human activity. Scientists have said that as much as 95 % of Jamaica's reef are dying or dead.
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22. SEACOLOGY is the world's premier nonprofit, nongovernmental organization (NGO) with the sole & unique purpose of preserving the environments & cultures of islands throughout the globe. Inhabitants of Ahus Island, Manus Province, Papua New Guinea, have followed a generations-old practice of restricting fishing in six areas of their reef lagoon. While line fishing is permitted, net and spear fishing are restricted based on cultural traditions. The result is that both the biomass and individual fish sizes are significantly larger in these areas than in places where fishing is completely unrestricted. PRESERVATION & RESTORATION Photo of Ahus Island, Papua New Guinea
23. One method of coastal reef management that has become increasingly prominent is the implementation of Marine Protected Areas (MPAs). MPAs have been introduced in Southeast Asia and elsewhere around the world to attempt to promote responsible fishery management & habitat protection. Project AWARE Foundation is a non-profit, worldwide, organization dedicated to "Conserving underwater environments through education, advocacy and action." Aquatic World Awareness, Responsibility and Education
24. Reef Restoration Technology Low voltage electrical currents applied through seawater crystallizes dissolved minerals onto steel structures.The resultant white limestone is the same limestone that makes up natural coral reefs. Corals rapidly colonize & grow at extremely fast rates onto these coated structures. The change in the environment produced by electrical currents also accelerates formation & growth of both chemical limestone rock & the skeletons of corals & other shell-bearing organisms .