- 1 What does black band disease affect?
- 2 What is white band disease?
- 3 Where does black band disease come from?
- 4 How does black band disease affect coral reefs?
- 5 Can corals get diseases?
- 6 Is coral bleaching a disease?
- 7 What causes white plague?
- 8 What is red band disease?
- 9 What are four causes of coral bleaching?
- 10 What did humans do that made coral sick?
- 11 What do Crown of Thorns starfish eat?
- 12 How do stressed corals will respond to disease?
- 13 How do you think ocean acidification will affect the coral reef?
- 14 What do people mine coral for?
- 15 What is coral cancer?
What does black band disease affect?
Black band disease was first described in the early 1970s as a black band moving on the surface of star corals (Monstastrea spp.) and brain corals (Diploria spp.). It destroys live tissue as it moves over the surface of the colonies, leaving behind bare white skeleton.
What is white band disease?
White band disease is a coral disease that affects acroporid corals and is distinguishable by the white band of exposed coral skeleton that it forms. It is part of a class of similar disease known as “white syndromes”, many of which may be linked to species of Vibrio bacteria.
Where does black band disease come from?
This large brain coral is being attacked by black-band disease. This disease is caused by a cyanobacteria, or blue-green algae, and manifests itself as an expanding black band over the surface of the coral. This is the only coral disease that can be successfully treated.
How does black band disease affect coral reefs?
Black band disease (BBD) manifests as a cyanobacterial-dominated microbial mat that destroys coral tissues as it rapidly spreads over coral colonies.
Can corals get diseases?
Coral diseases generally occur in response to biological stresses, such as bacteria, fungi and viruses, and nonbiological stresses, such as increased sea surface temperatures, ultraviolet radiation and pollutants. One type of stress may exacerbate the other.
Is coral bleaching a disease?
About Coral Bleaching Bleached corals are living but are less likely to reproduce and are more susceptible to disease, predation and mortality. If stressful conditions subside soon enough, the corals can survive the bleaching event; however, if stresses are severe or persist, bleaching can lead to coral death.
What causes white plague?
Tuberculosis was the principle cause of death in 17th century Europe, infecting those at every level of the socioeconomic hierarchy including kings Louis XIII of France and Edward VI of England, earning it the name “The White Plague.”
What is red band disease?
Identification. This disease, also referred to as Dothistroma needle blight, is called red – band needle blight because of the most common symptom found in the field. Although initial symptoms include dark green bands on the needles, these are quickly replaced with brown or reddish brown lesions.
What are four causes of coral bleaching?
The leading cause of coral bleaching is climate change. A warming planet means a warming ocean, and a change in water temperature—as little as 2 degrees Fahrenheit—can cause coral to drive out algae. Coral may bleach for other reasons, like extremely low tides, pollution, or too much sunlight.
What did humans do that made coral sick?
Pollution, overfishing, destructive fishing practices using dynamite or cyanide, collecting live corals for the aquarium market, mining coral for building materials, and a warming climate are some of the many ways that people damage reefs all around the world every day.
What do Crown of Thorns starfish eat?
Crown-of-thorns starfish (COTS for short) feed on coral. These spiky marine creatures occur naturally on reefs in the Indo Pacific region, including the Great Barrier Reef. They tend to eat the faster growing corals which gives the slower growing species a chance to catch up, enhancing the coral diversity of our reefs.
How do stressed corals will respond to disease?
When corals are stressed by changes in conditions such as temperature, light, or nutrients, they expel the symbiotic algae living in their tissues, causing them to turn completely white.
How do you think ocean acidification will affect the coral reef?
The more acidic seawater becomes, the less calcium carbonate it can hold. Many marine species, including coral, need calcium carbonate to build their protective shells and exoskeletons. Without it, shells grow slowly and become weak. Coral reefs with breakable, slow-growing corals erode more quickly than they accrete.
What do people mine coral for?
Corals are mined for new buildings because they contain limestone and they are also used for other construction material. Dead corals can be mined for calcium supplements or harvested for souvenirs or jewelry; corals can also be harvested for marine aquarium industry.
What is coral cancer?
Coral reefs are often referred to as the medicine chests of the sea. Scientists have developed treatments for cardiovascular diseases, ulcers, leukemia, lymphoma, and skin cancer, all from chemicals in reef plants and animals.