Coral

CORAL REEFS Almost every one of us have heard and most of you have seen the Coral reefs but did you know what actually these are: As a mariner its important to know about the marine life, that was one reason I have chosen this topic for my today’s short presentation. GM, my scheme of presentation will be as flashed: DEFINATION OF CORAL REEF DIFFERENCE BETWEEN CORAL AND CORAL POLYP WHERE WE CAN FIND CORAL CONSTRUCTION OF CORAL REEFS CONDITIONS FOR GROWTH OF CORAL REEFS TYPES OF CORAL REEFS

Coral Reefs today are among the most diverse and economically valuable ecosystems, are they worth saving? Today coral reefs also known as the "rain forests of the sea" cover less than 1% of the ocean's surface and less than 2% of the ocean's bottom. Coral reefs are essential spawning, nursery, breeding, and feeding grounds for numerous number of different organisms. Coral reefs support 4,000 species of fish and 800 hard coral species. Corals are related to sea anemones and they all share the same

Coral bleaching is a broad yet complex topic that involves the mutualistic and obligate symbiosis between corals and dinoflagellate algae of the genus Symbiodinium, commonly referred to as zooxanthellae. Bleaching occurs when a significant concentration of the zooxanthellae are no longer fixed on the coral, which occurs due to an inability to perform their role (Wooldridge and Done 2009). With the often colorful dinoflagellate algae gone, the coral is left as a white carbonate skeleton (Douglas 2003)

Coral Bleaching Coral reefs are the most biodiverse ecosystem on the planet. There are more than 25,000 known species of organisms and countless others that have yet to be identified (Helvarg, 2000). Reefs thrive on the shallow edge of tropical seas, most often on the eastern edge of continents along warm water currents that brush the coasts. Reefs cannot live in cold waters and are limited by ocean depth and available sunlight. Coral is the foundation of the reef community, providing a

Hawaii may face its worst coral bleaching to date. This Friday, the Department of Natural Resources announced that, as was forecast, coral reefs across Hawaii from the northernmost spot in the Hawaiian Archipielago, Kure Atoll, all the way to the island of Hawaii are already feeling the effects of coral bleaching. Coral bleaching occurs when ocean temperatures rise above their accustomed range, causing coral to expel the algae that they and creatures living in them feed from. It’s called bleaching

The Coral Reefs Can we save “Tropical Rain Forests of the Ocean”? Anyone who’s ever scuba dived at a coral reef and seen the perfect handprint of dead coral can appreciate how fragile and delicate this ecosystem is. Coral reefs are not just rock, like some people believe, but are an animal. Corals are a type of animal called a polyp, the simplest of predators that eat meat in the form of drifting zooplankton…all corals have boarders, zillions of microscopic

tonga is the destruction of coral reef. One solution to this problem is to put guard towers to watch people or higher more DLNR (department of land and natural resources) workers. According to Coral conservation the text states “the world's coral are in a crisis.” This shows that if we do not take action and do something about it like hire more DLNR workers we may as well kiss the reefs goodbye. According to coral reef: threats/ wwf the text states “Roughly one-quarter of coral reefs worldwide are already

Kristen Marhaver: How we’re growing baby corals to rebuild reef Many people may describe their jobs as difficult and strenuous, but as Kristen Marhaver said “people aren 't the only ones in our communities who do these difficult jobs”. Coral reefs take on similar jobs as humans, they provide food for sea life, income, and safety from tropical storms and other possibly dangerous weather. In Marhaver talk she informed the audience about the basics of coral reefs however, her talk lacked purpose, and

finding by Casey et al. (2016) and Jennings et al. (1995) regarding bottom up processes in coral reef ecosystem. Also show a profound contrast to widely accepted top-down processes in coral reef ecosystem, indicated by weak relationship on prey-predator interaction and strong positive relationship between hard coral cover and fish biomass. Despite there are more studies confirm cascading effect in coral reefs such as indirect effect on mesopredator and herbivore density( (Friedlandler and DeMartini

The Great Barrier Reef alone contains 1400 different species of coral (Stokes et al., 2004), which is an aquatic invertebrate that provides a home to millions of different species of organisms. In the past decade the number of coral species classified as endangered has increased (Sarkar & Ghosh, 2013), with coral bleaching being the main, underlying cause (Lukoschek et al., 2013). Coral bleaching is part of the natural evolution of coral, however several mass bleaching incidences have occurred in recent