Sentences with phrase «brittle stars»

Notable among them is a shot of brittle stars webbed across the sea floor.

This thin sliver of ocean reaching under the ice turned out to be 10 meters deep, and the camera came to rest on the bottom beneath it, revealing it to be muddy and strewn with pebbles — a flat, barren tract, devoid of any obvious signs of large marine life such as brittle stars, sponges or worms.

Glass sponges provide habitat for feather and brittle stars in frigid Antarctic waters.

Sponges provide shelter for other marine animals including brittle stars, fish, shrimp and worms.

Blunt - spined brittle star image courtesy of Henry Astley / Brown University How would you walk if you had five arms and no brains?

When Rudolf entered the business in the 1870s, the Blaschkas expanded the collection to include the full gamut of spineless sea life — from brittle stars to sea cucumbers — which they sold to museums and universities worldwide.

The most startling collection of eyes is found on the starfishlike brittle star, Ophiocoma wendtii.

Marine organisms abound here under normal conditions, but following an intensive trawl this year, researchers saw more brittle stars than ever before.

Scientists have observed brittle stars, anemones, and crustaceans riding rafts of seaweed in the open ocean, but few have witnessed them making landfall.

Although they resemble starfish, sponge brittle stars can move much more quickly with the assistance of their highly mobile arms.

Most of these are safe, except for the green monster brittle star, which traps fish at night when they are asleep.

Often, you can look into a tank, say a 40 - gallon hatchery style tank, with a dozen brittle stars and never see a one.

It is a little startling however, to end up with one wriggling arm in your hand while the now 4 armed brittle star swims off!

At first glance these really don, t look like they are related to the urchins, starfish or brittle stars at all.

If you come here at dusk, you're also likely to find shrimps, crabs and lots of brittle stars crawling over the reef.

Riding along from reef to reef, brittle stars get all kinds of perks when teaming up with sea cucumbers.

But while a tube of a creature that rambles about the ocean floor may not got that much love from the world, it's clearly a local hero at home, providing benefits to an entire community... including tiny brittle stars that hop on for a ride.

And despite having sat under ice for thousands of years, it still contained levels of oxygen that some marine animals, such as brittle stars and worms, can actually survive on.

We regularly see lobsters clinging to the ceiling, brittle stars in between the rocks, and spotted drum in the swim - through.

Naturalists had always assumed that the visual system of brittle stars — cousins of the starfish — was rudimentary.

Some, including brittle stars, serpent stars and some regular stars, can even be added to the list of animals that clean up tanks.

The brittle star Ophiocoma wendtii and its relatives are decorated with a surface layer of calcite hemispheres.

If you're a brittle star, the answer turns out to be quite well (for an echinoderm)-- although it's a little complicated.The blunt - spined brittle star (Ophiocoma echinata) looks like a claymation creature from an alien horror movie as it moves its disk - like body along the sea floor with unexpected agility.

That's exactly where the brittle star has nerves that fire when stimulated by light, Hendler says.

But in the 1980s, Gordon Hendler, now at the Natural History Museum of Los Angeles County, discovered that the brittle star Ophiocoma wendtii can spot dark areas from several centimeters away, enabling it to seek refuge from predators.

Instead, the researchers hauled up a startling variety — including bristly polychaete worms, isopod and amphipod crustaceans, mollusks, gastropods, sea urchins, brittle stars, nematode roundworms, and carnivorous sponges.

That led Hendler to suspect there might be more to the brittle star than meets the eye.

Not yet clear is exactly how much the brittle star can see.

In the 23 August issue of Nature, a team of scientists reports that a brittle star species has turned its skeleton into a vast array of microscopic lenses that cover half its body.

The team carefully removed a thin slice of skeleton from a brittle star and mounted it on a silicon wafer with a light - sensitive coating.

Some ancient echinoids, ophiuroids, and asteroids had slipped the bottleneck and coexisted with the ancestors of modern - day sea urchins, brittle stars, sand dollars, and relatives, for many millions of years.

«The typical fauna — worms, brittle stars, and sea cucumbers — just weren't there.»

There, they captured five Notoliparis kermadecensis snailfish (pictured above alongside a brittle star, Ophiura loveni), whose record TMAO levels and osmosis pressures matched projections the researchers made based on shallower dwelling fish.

Similar species of shrimp defend their hosts against unrelated invertebrates, such as brittle stars, that eat sponges.

Their test subjects were Manila clams, brittle stars, and lanky lobsters known as langoustines.

The researchers found that while the brittle stars seemed impervious to the racket, the other animals reacted strongly to certain human - made sounds.

Large red crab is Eumunida picta; urchin below it is Echinus tylodes; courtesy S.W. Ross, K. Sulak, and M. Nizinski); (f) bryozoan (courtesy NOAA / Ocean Explorer); (g) mollusk (oyster reef; courtesy South Carolina Department of Natural Resources); (h) echinoderm (brittle star; Larry Zetwoch; Florida Keys National Marine Sanctuary); (i) crustacean (lobster; Dr. James P. McVey, NOAA Sea Grant Program)

A Member of the Roseobacter Clade, Octadecabacter sp., is the Dominant Symbiont in the Brittle Star Amphipholis squamata.

Mediterranean Sea: Mediterranean Sea, an intercontinental sea that stretches from the Atlantic Ocean on the west to Asia on the east and separates Europe Sea urchins are members of the phylum Echinodermata, which also includes sea stars, sea cucumbers, brittle stars, and crinoids.

Her poetry, short stories and book reviews appear in a variety of publications in Britain, Canada, Australia, New Zealand and the States including Acumen, Brittle Star, Envoi, Mslexia and Orbis and have been broadcast on BBC and independent Radio.

Next are the serpent stars, with their long, sinuous arms, and their close relatives the brittle stars, similar in appearance but with a few paddle - shaped spines on the margins of their arms.

Can you really make money selling snails, crabs, shrimp, anemones, sea hares, sea slugs, lobsters, sea stars, brittle stars, serpent stars, corallimorphs, clams, scallops, tunicates, sea urchins, hermit crabs, feather dusters, limpets, chitons, tube anemones, zoanthids, sponges, etc.?

Then, I may add four emerald crabs, two Sally Lightfoot crabs, a common sand - sifting sea star and two brittle stars.

What customers really need, however, is a clean - up package that contains snails of several types, crabs, sand - sifting sea stars and brittle stars.

A variety of organisms occupy the surface layer of muddy debris among the roots including several species of starfish and brittle stars, conchs, and many species of worms.

Like their cousins the brittle stars, the sea cucumbers have a well developed defensive mechanism, but having no arms to break oft, the sea cucumbers instead eject internal organs onto the sea floor when threatened.

BEACHCOMBERS TIP: Brittle stars are the most common «starfish» on the reef.

Shrimps, brittle stars, nudlibranchs, tube worms and tunicates of every imaginable color are often overlooked by the diver.