|
|||||||
|
|
NSW Murray Regional Algal Coordinating Committee (MRACC) has provided all the invaluable information of the Blue-green Algae on this Blue-Green Algal Bloom Management website. MRACC is a public Service Committee which serves the public, water users and the Organisations who manage blue-gree Alage in the NSW Murray River catchment. The algae are a polyphyletic and paraphyletic group of organisms. They are defined in differing ways, but are usually considered to be the photosynthetic organisms excepting plants. Using the term 'plants' in its most restrictive fashion, the algae are then photosynthetic organisms excepting the sister group to the Charales (i.e. the land plants). Such a definition allows inclusion of photosynthetic prokaryotes such as the cyanobacteria. The definition applied here is that the algae is that artificial subset of the photosynthetic eukaryotes which excludes the sister group to the Charales (land plants). Algal bloom :- An algal bloom occurs when the numbers of algal cells increase rapidly to reach concentrations usually high enough to be visible to the naked eye. This high growth reproduction require favourable conditions such as high nutrient or light levels. Many types of algae form blooms. Some of these blooms are harmless, but when the blooming organisms contain toxins, other harmful chemicals, or pathogens it is known as a harmful algal bloom, or HAB. HABs can cause the death of nearby fish and foul up nearby coastlines, and produce harmful conditions to marine life as well as humans. Blue-green algae is the common name for several different types of algae. They are actually bacteria (Cyanobacteria) which are able to photosynthesise, hence the green colour. Cyanobacteria are bacteria that grow in water and are photosynthetic (use sunlight to create food and support life). Cyanobacteria live in terrestrial, fresh, brackish, or marine water. They usually are too small to be seen, but sometimes can form visible colonies. Cyanobacteria have been found among the oldest fossils on earth and are one of the largest groups of bacteria. Cyanobacteria have been linked to human and animal illnesses around the world, including North and South America, Africa, Australia, Europe, Scandinavia, and China. Cyanobacteria are the most common, but not the only, group of algae to form HABs. Some cyanobacterial blooms can look like foam, scum, or mats on the surface of fresh water lakes and ponds. The blooms can be blue, bright green, brown, or red and may look like paint floating on the water. Some blooms may not affect the appearance of the water. As algae in a cyanobacterial bloom die, the water may smell bad. Dangers of HABs Safety PrecautionsWe can protect ourselves, our family and our pets from exposure to HABs by following the instructions as under:- 1) Don't swim, water ski, or boat in areas where the water is discolored or where you see foam, scum, or mats of algae on the water. 2) If you do swim in water that might have a HAB, rinse off with fresh water as soon as possible. 7) Respect any water-body closures announced by local public health authorities. PreventionThe Algal bloom can be prevented in the following ways:- 1) Algae need three things for optimal growth: light, nutrients and high temperatures. Therefore, By Lowering the nutrients, light and temperature available to the blue-green algae in the water supply will help reduce algal growth. The speed at which water is flowing and mixing is important in controlling light and nutrient availability to algal cells. 2) Keeping livestock away from the farm dam or water supply. 3) Avoiding run-off into water supply from fertilizers and pesticides 4) Taking some water treatment measures BEFORE a bloom starts; and if practical - changing mixing patterns or covering the dam/water supply to screen out light may help. The Indianapolis 500 is a US car race which is held in Speedway, Indiana every year. The event is not only rated as one of the oldest motorsport events but it is considered one of the three most significant motor racing events in the world. With a large seating capacity, it is the biggest single-day sporting event in the world. The event has been relayed live on the radio since 1930 by the local radio network since 1953. It has also been covered on television though live coverage has not been accommodated. On Sunday May 24, 2009, the race was held for 93rd time. Get Indianapolis 500 Tickets for automobile race thrills that will go beyond your dreams! One of the most celebrated Broadway musicals is back once again and this is sure to be an exciting event. Jersey Boys tells the story of The Four Seasons which was one of the most popular rock bands of the 1960s. The show began playing on Broadway on the 6th?áof November 2005 and has gained several awards such as the Tony Awards for Best Musical Best Featured Actor and many more. Watch this incredible performance live with your Jersey Boys Tickets and get ready for an enchanting evening at the theater with your family and friends! The New York Knicks who play professional basketball are a well-known and well-liked team that has been around for a long time. The New York Knicks' team wears their popular white jerseys that many fans wear too. This is how they support their favourite team. Many fans make it a point to purchase and wear New York Knicks Jersey while they are supporting their teams at games. Fans do not simply wear a new york knicks jersey to support their favorite team. Wearing this jersey is a matter of pride for a fan. Sam Boyd Stadium has been entertaining football fans since it opened in 1971. The stadium is a state-of-the-art football venue which has a capacity to seat more than 36,000 people for a single game. You can choose from a long list of all your favorite football events and you will be on your way to a fun of a lifetime. This is your chance to book Sam Boyd Stadium Las Vegas-NV Tickets and to experience the real fun of football and all that it ensues. Don't wait any longer for booking your Tickets as these Tickets are famous for selling out with the speed of light. Home ballpark of the Chicago Cubs Wrigley Field is hosting the 94th season of Major League Baseball this year. With its 41118 capacity the stadium was ranked as the fourth-smallest but the most actively used venue in 2006. Since 2004 this baseball Mecca has been drawing around 3 million fans each year averaging Wrigley Field Tickets to an almost-sellout. For the past few years the venue has also been hosting a number of concerts by the popular artists and bands like the Police and Jimmy Buffet. This year also many artists are scheduled to perform here including Elton John with Billy Joel and Rascal Flatts. |
||||||