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Latest Echinoidea Stories

Purple Urchins Quickly Adapt To Acidic Oceans
2013-06-13 11:41:25

Brett Smith for redOrbit.com - Your Universe Online As the levels of atmospheric carbon dioxide increase, the oceans are projected to absorb more of the greenhouse gas, leading to acidification of the water. This shift in oceanic chemistry is expected to negatively impact countless species. However, a new study from the University of California, Santa Barbara has found that purple sea urchins Strongylocentrotus purpuratus are capable of evolving in a way that copes with potential...

purple sea urchin Strongylocentrotus purpuratus
2013-04-11 05:15:28

Alan McStravick for redOrbit.com - Your Universe Online The purple sea urchin (Strongylocentrotus purpuratus) has been receiving a bit of attention lately on the pages of redOrbit and in academic journals. As it turns out, this sea creature is particularly efficient at adaptive success. redOrbit´s own Lee Rannals wrote yesterday about how this spiny creature seems suited to a future where climate change plays a significant role. And today, we learn that even in their youngest state,...

Sea Urchins Prepared For Future Climate Change
2013-04-10 05:47:43

[ Watch the Video: Ocean Babies on Acid - The Time Machine ] Lee Rannals for redOrbit.com - Your Universe Online Scientists have uncovered some surprising abilities in sea urchins living along the coast of California and Oregon. A group from Stanford discovered that some purple sea urchins have the ability to rapidly evolve in acidic ocean water, which is a skill that could come in handy as climate change increases. This ability allows urchins to have healthy growth in water with...

Sea Urchin Spine Structure Makes It Strong And Fragile
2012-10-03 16:46:09

Lee Rannals for redOrbit.com - Your Universe Online Sea urchins are those round little spiky creatures in the ocean, and a study published in the journal PLOS ONE has unveiled what it is that gives those viscous looking spines their unique characteristics. For years, scientists have been interested in the chemical composition of the sea urchin spine, but there has been no investigation of how they respond to mechanical stress. The purple-spined sea urchin is found in tidal waters...

Secrets Of Looking Young Could Come From Sea Creatures
2012-10-02 11:16:07

April Flowers for redOrbit.com - Your Universe Online A research team at Queen Mary, University of London reports that sea cucumbers and sea urchins could hold the secret to looking young. Published online in both PLoS One and General and Comparative Endocrinology, the study looked at the genes of echinoderms, such as sea cucumbers and sea urchins, because they are able to change the elasticity of collagen within their bodies. The scientists found the genes for peptides, known as...

Purple Sea Urchin Metamorphosis Controlled By Histamine
2012-04-27 07:06:53

Now that hay fever season has started, sufferers are well aware of the effect of histamines. However it is easy to forget that histamine is also a neurotransmitter involved in controlling memories, regulating sleep, and controlling secretion of gastric acid. New research published in BioMed Central's open access journal BMC Developmental Biology shows that for the purple sea urchin (Strongylocentrotus purpuratus) histamine is also responsible for controlling metamorphosis from a free swimming...

Structure Of Tough Sea Urchin Spines May Inspire Engineers
2012-02-16 14:10:27

A team of German scientists recently decoded the molecular structure of the unusually sturdy spines of sea urchins, a discovery that they believe could eventually prove useful in helping engineers construct stronger, more stable buildings. Biologists have long known that the spines of the globular little marine animals are made of the compound calcium carbonate, a chemical commonly found in the shells of various invertebrates, not to mention egg shells, calcium supplements and the antacids...

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2011-07-14 10:15:16

Exotic marine species, including giant seaweeds, are spreading fast, with harmful effects on native species, and are increasingly affecting the biodiversity of the Mediterranean seabed. Some native species, such as sea urchins (Paracentrotus lividus), can fight off this invasion, but only during its early stages, or when seaweed densities are very low. Spanish researchers have carried out a study to look at the ability of sea urchins (Paracentrotus lividus) "“ generalist herbivores that...

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2011-07-01 10:10:00

Many animals have eyes that are incredibly complex "“ others manage without. Researchers at the University of Gothenburg have shown that sea urchins see with their entire body despite having no eyes at all. The study has been published in the scientific journal Proceedings of the National Academy of Sciences (PNAS). Most animals react to light and have developed a very sophisticated way of seeing complex images so that they can function in their surroundings. Good examples include...

2011-02-02 15:21:29

Estuaries are highly appropriate systems for evaluating contamination. They are areas of accumulation of sediments and, effectively, numerous contaminants are found associated with these sedimentary particles. For a comprehensive evaluation, it is important to undertake studies on the effects of the contaminants in the environment; the toxicity trials enabling the quantification of such effects. These trials involve exposing organisms to sediments suspected of being contaminated, in order to...


Latest Echinoidea Reference Libraries

Diadema setosum
2013-11-21 12:27:30

Diadema setosum is a species of long-spined sea urchin in the family Diadematidae. It’s a typical sea urchin, which exceptionally long and hollow spines that are mildly venomous. D. setosum is different from other Diadema with five distinctive white colored dots that can be found on its body. The species is located throughout the Indo-Pacific region, from Australia and Africa to Japan and the Red Sea. Although it is capable of painful stings when stepped upon, the urchin is only somewhat...

Eccentric Sand Dollar, Dendraster excentricus
2013-11-21 12:20:48

The Eccentric Sand Dollar (Dendraster excentricus) known also as the Sea-Cake, Biscuit-Urchin, Western Sand Dollar, or the Pacific Sand Dollar, is a member of the order Clypeasteroida, better known as sand dollars, a species of flattened, burrowing sea urchins located along the Pacific Ocean from Alaska to Baja California. This species is an irregular echinoid that is flattened and burrows into the sand, unlike the regular echinoids, or sea urchins. It can be found living within the...

Kina, Evechinus chloroticus
2013-11-15 10:54:52

Kina (Evechinus chloroticus) is a sea urchin that is native to New Zealand. This echinoderm belongs to the family Echinometridae and it has the potential to reach a maximum diameter of 16 to 17 centimeters. It is scattered throughout New Zealand and in some northern and southern offshore islands. It can be found in shallow waters around 12 to 14 meters deep, although there are also intertidal populations located in the north of both the North and South Islands. It shows a preference for...

Echinus tylodes
2013-11-15 10:51:41

Echinus tylodes is a species of sea urchin belonging to the Echinidae family. It’s white with rather sparse pink colored spines and is native to the eastern coast of North America including the Gulf of Mexico. This species has a sub-globular test that is about two-thirds as high as it is wide and grows to a diameter of 4 inches. The joints that are between the ambulacral plates and the pores through which the tube feet project are both sunken below the general surface of the test. The...

Sea Potato, Echinocardium cordatum
2013-11-14 13:16:11

The Sea Potato (Echinocardium cordatum) is a sea urchin belonging to the family Loveniidae. It’s located in sub-tidal regions in temperate seas around the globe and resides buried in the sandy sea floor. The sea potato is a heart-shaped urchin clothed in a dense mat of furrowed yellowish colored spines which grow from tubercles and mainly point backwards. The upper surface is flattened and there’s an indentation close to the front. It’s a beige color but the tests that are found on...

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Word of the Day
cenobite
  • One of a religious order living in a convent or in community; a monk: opposed to anchoret or hermit (one who lives in solitude).
  • A social bee.
This word comes from the Latin 'coenobium,' convent, which comes from the Greek 'koinobios,' living in community.
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