A scientist from Australia has stumbled across what might be the rarest coral in the world, in the vastness of the remote North Pacific.

The coral, identified as Pacific elkhorn, was discovered while performing underwater surveys at Arno atoll, situated in the Marshall Islands, by Dr. Zoe Richards, a coral researcher of the CoECRS (ARC Center of Excellence for Coral Reef Studies).

This coral is strikingly similar to the endangered and rapidly disappearing elkhorn coral, known in scientific circles as Acropora palmata, native to the Atlantic Ocean.

However, upon close genetic comparison is has proven that this coral is actually a different species.

“When I first saw it, I was absolutely stunned. The huge colonies – five metres across and nearly two metres high with branches like an elk’s antlers – were like nothing I’d seen before in the Pacific Ocean,” Dr Richards commented during a conference.

So far I have only found this new population of coral to occur along a small stretch of reef at a single atoll in the Marshalls group.

“It grows in relatively shallow water along the exposed reef front and, so far, fewer than 200 colonies are known from that small area.”

Dr. Richards explained that the Pacific elkhorn colonies were the largest of their kind, and also largest in all of the colonies located at Arno Atoll. This means that they are incredibly old.

So, there you have it. A new coral, well OK, newly discovered coral, is making quite a splash in the scientific community, and has sparked debate as to whether it is indeed a new species or not. Only time will tell…

A brand spanking new species of Hemigrammus tetra has been categorized, analyzed and described by a group of ichthyologists from Brazil. The new species makes its home in the Tocantins River drainage out in the central area of Brazil.

This tetra Hemigrammus, dubbed Hemigrammus tocantinsi, was described in the recently published issue of the journal Neotropical Ichthyology by Fernando Carvalho, Vinicius Bertaco, and Fernando Jerep.

What exactly sets this Hemigrammus tocantinsi apart from the other Hemigrammus tetra? Well for starters, Hemigrammus tetra has 15 to 17 anal-fin rays, horizontal stripes which narrow towards the back and get wider towards the front, as well as sporting one or two eye teeth. This new species of tetra likes to make its home in forested streams, where it lives in peaceful co-existence with Aspidoras albater, Astyanax sp., Characidium stigmosum, Corumbataia veadeiros, and Trichomycterus sp.

The Hemigrammus tocantinsi has another rather interesting thing going for it. Its dietary habits were extensively studied, and it was found that the Hemigrammus tocantinsi has a diet which consists mainly of terrestrial and aquatic insects.

If you would like more information on this very exciting topic, please see the paper: Carvalho, FR, VA Bertaco & FC Jerep (2010) Hemigrammus tocantinsi: a new species from the upper rio Tocantins basin, Central Brazil (Characiformes: Characidae). Neotropical Ichthyology 8, pp. 247–254.

A conglomerate of Canadian and Spanish researchers have discovered new marine life, which have been previously unknown to the scientific community, and some are even over a 1,000 years old. They are hoping that these creatures will shed some light into the secrets of the ancient underwater ecosystems.

Scientists from the Spanish Institute of Oceanography in conjunction with three Canadian universities and the Fisheries Department are going on a 20 day expedition to take some photos and pick up samples of coral and sponges up to 3 kilometers deep in the cold waters off the Newfoundland coast.

The team will be studying 11 different areas which are under the protection of the North Atlantic Fisheries Organization.

These are important areas of study as they are the home to the “trees of the ocean” explains a research scientist with the Fisheries Department, Ellen Kenchington. Ellen is also leading the expedition.

The coral which can be found in these areas can be several meters tall and is sufficient enough in size to change the flow of currents. It is also the home to many other fish and other aquatic life.

The aim of the study is to see whether or not these areas need further protection from fishing to help keep the species abundant.

Ellen went on to explain that scientists can actually take a look at the chemical makeup of the coral and figure out the temperature of the water and other information dating back as far as 1,000 years!

For pictures see
http://www.montrealgazette.com

This is an absolutely amazing development.. Even though the Gulf of Mexico is in turmoil, what with the BP oil spill gumming up the works, it appears that life does go on, as scientists revealed on Thursday that a new species of pancake batfish have been discovered there.

The discovery was published in the Journal of Fish Biology, which is a team of researchers led by H.C. Ho of the Academia Sinica, and reports that two flatfish species have been discovered in the Gulf Of Mexico. The Halieutichthys intermedus and the Halieutichthys bispinous were the two species which were uncovered.

What makes this discovery so amazing, is that the latter of the two flatfish discovered is found exclusively in the area of the oil spill. No one really knows why the Halieutichthys bispinous is found only in the area of the spill, but it has been said that it does not necessarily mean there is anything special about that environment. Some researchers have theorized that the fish simply prefer that environment as it is free of natural predators, and that suits the batfish just fine. More research is planned, however the top priority of course is getting the spill cleaned up.

John Sparks, of the American Museum Of Natural History, had this to say on the subject, “If we are still finding new species of fishes in the Gulf, imagine how much diversity — especially microdiversity — is out there that we do not know about.”

Residents of the Daluo village in China’s Guangxi province have caught several weird looking yellow fishes in a cave lake located 1,000 meters (3,280 feet) below ground.

Experts working at the Bama County and Guangxi provincial aquatics institutes have been unable to indentify the fish, which sports a flat mouth shaped almost like the bill of a duck and eye-catching red lips. The mysterious creature is also adorned with a long, slim “moustache”.

According to Li Zuneng, head of the village, members of his community have heard stories about this outlandish fish told by the oldest villagers, but many had assumed that it was some type of fairytale creature. Up until now, no one from the younger generations had actually seen the deep dweller.

The cave where the fish lives is named Fu Yuan Dong, which means Cave of Fortune.

Four new species of King crab has been discovered in the Smithsonian Collections of the National Museum of Natural History in Washington.

Lithodes galapagensis – Picture by NOCS

The four species have been formally described by Sally Hall, a PhD student at the University of Southampton* who discovered the species in the museum. All four hail from the deep sea but from very different parts of the globe. Paralomis nivosa is native to Philippine waters, Paralomis makarovi comes from the cold Bering Sea, Paralomis alcockiana lives off the coast of South Carolina, USA, and Lithodes galapagensis is the only king crab ever recorded from the Galapagos archipelago.

“King crabs include some of the largest crustaceans currently inhabiting Earth and are fished by humans, particularly from the shallower waters of the polar regions”, Hall explained. “The new discoveries increase the total number of king crab species known to 113.”

Hall believes that even more species of King crab will be found in the future.
“The oceans off eastern Africa, the Indian Ocean and the Southern Ocean are all particularly poorly sampled,” she said. “We need to know which king crab species live where before we can fully understand their ecology and evolutionary success.”

* The University of Southampton’s School of Ocean and Earth Science (SOES) at the National Oceanography Centre, Southampton (NOCS)

For the first time since 1947, a new species of cartilaginous fish has been described from Californian waters. The new species – Hydrolagus melanophasma – belongs to a group of sharks known as Chimaeras or ghostsharks.

Chimaeras are fairly closely related to the true sharks, but their evolutionary lineage branched off from the true sharks nearly 400 million years ago. Just like sharks, ghostsharks have cartilage skeletons instead of bony skeletons and they carry out internal fertilization using claspers. Unlike the true sharks however, males of the Chimaera group are fitted with retractable sexual appendages on the forehead and in front of the pelvic fins. Most known species also have a venomous spine in front of the dorsal fin.

The new species, the Eastern Pacific black ghostshark, was caught and preserved as early as the 1960s but hasn’t been formally named and described until know since its taxonomic relationships with other Chimaeras remained unclear. It is now placed in the genus Hydrolagus – the water rabbits – a genus named after the grinding tooth plates used by its members; plates somewhat similar to the teeth of a rabbit.

You can find out more about Hydrolagus melanophasma in the September issue of the journal Zootaxa. The article in which the new species was described is the result of the combined efforts of a team of scientists, including Academy Research Associates David Ebert and Douglas J. Long, graduate student Kelsey James from the Moss Landing Marine Laboratories, and Dominique Didier from Millersville University in Pennsylvania.

When a six-foot-long gelatinous animal turned up off Brazil’s Bahia cost, initial accounts quoted scientists calling the creature “completely new, scientifically speaking.” However, fish experts taking a closer look at the video footage have now managed to identify it as being a member of Ateleopodidae, an elusive family of deep-sea fish known as jellynoses or tadpole fish.

“As soon as I saw it, I knew what it was,” said Dave Johnson, ichthyologist at the Smithsonian Institution’s National Museum of Natural History in Washington, D.C.

The family Ateleopodidae is a group of deep-dwelling fishes known for their soft, blunt noses, small teeth, and scaleless, tapered bodies.

Despite being identified by science as early as the 1840s, we still know very little about this family and only about a dozen species have been named and described. They are found at depths ranging from about 1,300 to 2,300 feet (400 to 700 meters), where the lack of oxygen and nutrients makes being a gelatinous blob with very little muscle tissue superior to having a strong, burly body.

“You don’t ever see any hard, muscular fishes like tuna in the deep sea,” Johnson said, since at those depths there aren’t enough oxygen and nutrients to feed dense muscle tissue.

The Ateleopodidae fish was found floating dead by researchers from the Brazilian TAMAR Program, a sea turtle conservation group. If this species is already known to science or not remains unclear, but it is certainly the first of its kind ever to be identified in Brazilian waters.

“I’ve never heard of anything [like this] caught off the Brazil coast at all,” says marine biologist Jon Moore of Florida Atlantic University who has studied the diets of Ateleopodidae fish.

You can watch a movie here.

For anyone interested in learning more about the fascinating creatures inhabiting the deep and chilly waters of the Canadian Basin, details of a 2005 research mission has now been published in the journal Deep Sea Research Part II.

“There were a lot of surprises,” says biologist Dr Kevin Raskoff of Monterey Peninsula College in California, US, a leading member of the dive team.

“One thing was just how many different jellies there were, and the sizes of their populations. Some were somewhat well known from other oceans, but had not previously been found in the Arctic. That caused us to rethink our ideas about what the typical habitat would be for the species. We also discovered a number of new species that had not been found before.”

The deep Arctic Ocean is isolated from much of the other seas and the Canadian Basin even more so since it contains deep-sea ridges that separate the resident deep-dwellers into comparatively small compartmentalized areas.

To learn more about this inaccessible part of our planet, an international team of scientists conducted a series of deep-sea dives using a remote operated vehicle (ROV) capable of filming and photographing in dark, high-pressure conditions. During a series of dives to depths of 3000 meters, over 50 different types of viscous, jelly-like creatures were caught on tape. Surprisingly, one of the most commonly seen animals in this arctic deep turned out to be a type of jellyfish never before described by science.

“Probably the single most interesting discovery was a new species of a small blue jellyfish, from a group called the Narcomedusae,” says Dr Raskoff. “It was also the third most common jellyfish found on the cruise, which is really surprising when you think about the fact that even the most common species in the area can be totally new and unexpected species.”

“You don’t have to go too far to find interesting areas to study, you just have to dive deep,” Dr Raskoff explains.

The team also encountered large amounts of Sminthea arctica, a jellyfish found down to a depth of 2,100 meters, as well as various ctenophores and siphonophores.

The newly discovered jellyfish won’t be formally described until later this year, but has already been classified within its own genus. Just like all the other members of the Narcomedusae group, this small blue jelly distinguish itself from typical jellyfish by holding its tentacles over its belly as it swims instead of letting them drift behind in the water.

The 2005 expedition was funded primarily by the US National Oceanic and Atmospheric Administration’s Office of Ocean Exploration and Research.

A previously unknown species of crustacean and two previously unknown species of annelid worms have been discovered during a cave dive near Lanzarote in the Canary Islands off the coast of northern Africa. The discoveries were made by a team of international scientists and cave divers exploring the Tunnel de la Atlantida – the longest submarine lava tube in the world.

The crustacean belongs to the genus Speleonectes in the class Remipedia, while the annelid worms are members of the class Polychaeta.

The crustacean has been named Speleonectes atlantida, after the cave system in which it lives. It looks a lot like its close relative Speleonectes ondinae which was discovered in the same lava tube in 1985. The two crustaceans may have diverged into separate species some 20,000 years ago after the Monte Corona volcano had erupted, forming the famous six-kilometre long lava tube.

Until quite recently, the class Remipedia was unknown to science. The first member of this class was found in 1979 by divers exploring a marine system in the Bahamas archipelago. Since then, 22 Remipedia species have been named and described. Most of them live in Central America, from the Yucatan Peninsula of Mexico through the north-eastern Caribbean. However, two species are instead found in caves in Lanzarote and Western Australia. The existence of these wayward species puzzles the scientists, since it is assumed that these small eyeless cave-dwellers would not be able to simply swim from the Caribbean to West Africa and Western Australia. One theory suggests that this class might be a very old crustacean group that was already widespread 200 million years ago. If this is true, the two species living off Lanzarote became isolated from the Caribbean group by the formation of the Atlantic Ocean.

As mentioned above, members of the class Remipedia live in dark submarine caves and have no eyes. Instead, they find their way around using long antennae. The heads of these predatory crustaceans are equipped with prehensile limbs and poisonous fangs.

The results of the lava cave exploration will be published in a special issue of the Springer journal Marine Biodiversity in September 2009.

The cave exploration team consisted of scientists from Texas A&M University and Pennsylvania State University in the USA, the University of La Laguna in Spain, and the University of Veterinary Medicine Hannover and the University of Hamburg, both in Germany.