This 2011 video from Sweden shows dead men’s finger coral and other marine life.
1 JANUARY 2017 – How nice is it to start 2017 immediately with some good news from our salty waters. Dead man’s fingers, our only cold water coral species after 1994 was observed less in the Oosterschelde [estuary in Zeeland province]. In the summer of 2011 it even seemed to have disappeared. From autumn 2011 on the coral spontaneously came back. Now colonies of dead man’s fingers are seen of almost unprecedented dimensions.
This 2009 video says about itself:
In a vast, turquoise-blue corner of this Earth, the forces of nature have crafted a truly amazing underwater tapestry of corals. This is the Coral Triangle – ‘nursery of the seas’.
From Leiden University in the Netherlands:
Most species-rich coral reefs are not necessarily protected
Published on 22 November 2016
Coral reefs throughout the world are under threat. After studying the reefs in Malaysia, Zarinah Waheed concluded that there is room for improvement in coral reef conservation. PhD defence 22 November.
One-third of the corals of the Great Barrier Reef are dead. This was the sombre conclusion drawn by Australian scientists six months ago. Pollution, shipping and climate change are destroying the world’s largest continuous reef, and other coral reefs seem to be facing the same fate.
PhD candidate Zarinah Waheed studied coral reefs in her home country Malaysia over recent years. She looked specifically at the coral diversity of these reefs and also at the connectivity between the reef locations. She found that the areas with the highest numbers of coral species are not necessarily protected.
During her research, Waheed examined how many species of three coral families – Fungiidae, Agariciidae and Euphylliidae – occur in different reefs spread throughout Malaysia. She made a number of diving trips in the region, together with her co-supervisor and coral expert Dr Bert W. Hoeksema of Naturalis Biodiversity Center in Leiden. Before the diving trips, she first examined all specimens of the target species in the extensive coral collection held by Naturalis.
‘The eastern part of Malaysian Borneo is part of the so-called Coral Triangle,’ Waheed explained. ‘This is a vast area that is home to the highest diversity of corals in the world. Scientists have long suggested that diversity diminishes the further away you get from this Coral Triangle. This hypothesis had never been thoroughly examined as far as Malaysia is concerned. My research shows that this holds true based on the coral species we examined.’
Paradise for divers
Waheed discovered, for example, that Semporma, a paradise for divers in the eastern part of the country, has a total of 89 species of coral of the three families she studied. If you go further west – that is, further away from the Coral Triangle – the number of species drops to only 33 in Payar on the west coast of the Malaysian mainland.
Finally, Waheed investigated how the different Malaysian reefs are connected to one another. She did this by establishing how one species of mushroom coral (Heliofungia actiniformis), the blue starfish (Linckia laevigata) and the boring giant clam that goes by the name of Tridacna crocea are genetically related within each of their populations.
Water circulation pattern
The three model species Waheed studied exhibit different levels of connectivity among the coral reefs. She suspects that this may well be due to the effect of water circulation patterns in the research area. ‘The larvae of the coral, the starfish and the clam can survive for a while before they have to settle on the reef. In the meantime they are carried by the currents and may settle in other coral reefs from where the originate.’
Coral reef conservation
Surprisingly enough, reef areas that have the greatest diversity are not necessarily the best protected. For example, only a limited part of the coral reefs in Semporna are protected under a marine park. ‘Reefs outside the park boundary are not protected. During our diving trips we regularly heard dynamite explosions. Blast fishing is an illegal practice and it causes enormous damage to the coral reef but it is nonetheless a way of catching fish.’ Blast fishing occurs not only in Semporna, but also in other coral reef areas of Sabah, Malaysia, and the Coral Triangle.
JAPAN’S LARGEST CORAL REEF IS DYING About 70 percent of the Sekiseishoko reef has died. [HuffPost]
FIRST PHOTOS OF AMAZON CORAL REEF ARE STUNNINGLY BITTERSWEET Oil companies had previously obtained drilling rights to the area before the reef, which may have a signature marine biome, was discovered. [HuffPost]
This video says about itself:
Reef Life of the Andaman (full marine biology documentary)
31 October 2012
“Reef Life of the Andaman” is a documentary of the marine life of Thailand and Burma (Myanmar).
Scuba diving more than 1000 times from the coral reefs and underwater pinnacles of Thailand‘s Similan Islands, Phuket, Phi Phi Island and Hin Daeng, to Myanmar’s Mergui Archipelago and Burma Banks, I encountered everything from manta rays to seahorses, whale sharks to shipwrecks. The 116-minute film features descriptions of 213 different marine species including more than 100 tropical fish, along with sharks, rays, moray eels, crabs, lobsters, shrimps, sea slugs, cuttlefish, squid, octopus, turtles, sea snakes, starfish, sea cucumbers, corals, worms etc..
This marine biology documentary provides an overview of Indian Ocean aquatic life.
From Science News:
Reef rehab could help threatened corals make a comeback
Solutions for threatened reefs vary by location and damage done
By Amy McDermott
5:30am, October 18, 2016
Coral reefs are bustling cities beneath tropical, sunlit waves. Thousands of colorful creatures click, dash and dart, as loud and fast-paced as citizens of any metropolis.
Built up in tissue-thin layers over millennia, corals are the high-rise apartments of underwater Gotham. Calcium carbonate skeletons represent generations of tiny invertebrate animals, covered in a living layer of colorful coral polyps. Their structures offer shelter, and for about 114 species of fish and 51 species of invertebrates, those coral skyscrapers are lunch.
Important as they are, corals are in jeopardy. Warming oceans are causing more and more corals to bleach white and become vulnerable to destruction. A prolonged spike in temperatures, just 1 to 2 degrees Celsius, is enough to kill the marine animals. Greenhouse gas emissions also acidify the water, dissolving the calcium skeletons. In some countries, fishermen use dynamite to catch fish, leaving behind coral rubble. Today, more than 60 percent of the world’s reefs are at risk of disappearing.
Threats to reefs have “dramatically escalated in the last few decades,” says marine scientist Peter Harrison of Southern Cross University in Lismore, Australia. He has studied corals for three decades. “In my time as a reef researcher,” Harrison says, “I’ve seen it get worse, firsthand.”
Thirty years ago, massive coral bleachings were unheard of. Today, reefs are suffering through a third global bleaching event since 1998. With high ocean temperatures dragging on since 2014, this summer marked the longest and most widespread episode of worldwide coral bleaching on record (SN: 7/23/16, p. 5). Australia has been hit especially hard. More than 80 percent of the northern part of the Great Barrier Reef is bleached and close to half of those corals have died, according to a report in April from Australia’s National Coral Bleaching Taskforce.
As reefs take a nose dive, scientists from Hawaii to the Philippines and the Caribbean are scrambling to save corals. Approaches that were once considered radical are “now seen as necessary in some places,” says coral biologist Ruth Gates of the Hawaii Institute of Marine Biology on Oahu.
In Florida, researchers are restoring reefs with tiny coral fragments. In Hawaii, Gates is scouring the water for stress-tolerant corals and experimenting in the lab to breed the hardiest individuals. At the 13th International Coral Reef Symposium in Honolulu in June, Harrison’s team reported early promising results of its effort to flood damaged reefs in the Philippines with tiny coral larvae.
What works on one reef won’t necessarily save another. So researchers are testing an arsenal of options to rescue a diversity of underwater communities.
This video says about itself:
Parrotfish Poop! | JONATHAN BIRD’S BLUE WORLD Extra
23 September 2016
In this short Jonathan Bird’s Blue World Extra, Jonathan discusses where sand comes from and you may be surprised to learn that a lot of sand is actually fish poop!