Sentences with phrase «in sea urchin»

If exposure to a more acidic pH caused a decline in some sea urchin populations, how might this affect the storage of carbon in ocean sediments?

Along gradients of normal pH (8.1 — 8.2) to lowered pH (mean 7.8 — 7.9, minimum 7.4 — 7.5), typical rocky shore communities with abundant calcareous organisms shifted to communities lacking scleractinian corals with significant reductions in sea urchin and coralline algal abundance.

The stunting effect of a high CO2 ocean on calcification and development in sea urchin larvae, a synthesis from the tropics to the poles

Dmrt1 (Doublesex and mab - 3 related transcription factor 1) was a testis - specific positive control in chicken [82] and Bnd (Bindin) was a testis - specific positive control in the sea urchin [83].

Dr. Rebecca Vega Thurber received her doctorate in 2005 from Stanford University where she studied developmental cell signaling pathways in sea urchin larvae.

This antagonist inhibited IP3 evoked Ca2 + release in sea urchin homogenate and oxytocin induced contraction in whole uterine strips.

In the sea urchin's case, this material is calcium carbonate.

The resulting cascade rippled through the North Pacific, causing an upsurge in sea urchin numbers and kelp consumption and denuding the ocean floor.

These are biomineral crystals found in a sea urchin tooth.

That is a clue to anyone who studies the distribution of organisms on Earth that there might be something different going on there,» says Rich Mooi, the Curator of Invertebrate Zoology and Geology at the Academy and a specialist in sea urchins who took part in the expedition.

But it does occur in fish, birds, amphibians and possibly even in sea urchins.

«The enzymes in the sea urchins» stomachs are optimized to function at very high pH — which is different from the situation in mammals, where stomach pH is acidic and enzymes work best at low pH.»

Not exact matches

Lupa Osteria Romana: Dine on raw fluke with lemon and Aleppo pepper; crispy octopus with green faro and Swiss chard; shellfish stew with eels, lobster and clams; baccala ravioli with marjoram; dried pasta with crab and sea urchin; sea scallops with cauliflower, fennel and citrus; and turbot cooked in parchment with black truffles; plus dessert.

The space, feel, and comforting dishes — smoked herring tart and sea urchin custard — are, in a word, nurturing.

Squid Ink Conchiglie With Blue Crab and Sea Urchin Butter at Kindred, Davidson, NC In a year in which we ate a nearly comical amount of squid - ink pasta, no other lived up to chef Joe Kindred's miniature shellIn a year in which we ate a nearly comical amount of squid - ink pasta, no other lived up to chef Joe Kindred's miniature shellin which we ate a nearly comical amount of squid - ink pasta, no other lived up to chef Joe Kindred's miniature shells.

Many people are having a go — from a woman who works at a fish market by day and cultures sea urchin meat by night, to high - school students culturing shellfish in their refrigerators.

The visual systems of sea urchins, mantis shrimp and other creatures are broadening scientists» understanding of what qualifies as an eye, Susan Milius reported in «Strange visions» (SN: 5/28/16, p. 22).

While it isn't uncommon to find sea urchins attached to elevated rocks in an attempt to snap food from ocean currents, NOAA scientists aren't quite sure why so many have chosen to gather here.

Across the species» range from Baja California, Mexico, to Alaska, bioerosion on urchin - covered sandstone reefs, the researchers report, produces sediment approximately equivalent to that delivered to the coast by a river — some 200 tons of sediment per hectare — suggesting that when you stroll along the beach, a not insignificant chunk of the sand is, in fact, sea urchin waste.

In a study published today in PLOS ONE, scientists spent a year observing purple sea urchins (Strongylocentrotus purpuratus, pictured above) growing on sections of sandstone, mudstone, and granite reefs that had been transported into a laboratory settinIn a study published today in PLOS ONE, scientists spent a year observing purple sea urchins (Strongylocentrotus purpuratus, pictured above) growing on sections of sandstone, mudstone, and granite reefs that had been transported into a laboratory settinin PLOS ONE, scientists spent a year observing purple sea urchins (Strongylocentrotus purpuratus, pictured above) growing on sections of sandstone, mudstone, and granite reefs that had been transported into a laboratory setting.

«We posited that giant kelp fed herbivores in the system and provided structure and habitat for predators, and that it was fed upon by sea urchins and affected the understory communities of algae and sessile invertebrates in the kelp forest,» said lead author Robert Miller, a research biologist in UCSB's Marine Science Institute (MSI).

All of the limestone in the quarry formed in a shallow sea basin, as evidenced by the large number of marine fossils such as snails, mussels and sea urchins.

FOSSILISED sea urchins have been found embedded in the walls of medieval churches, embellished with Egyptian hieroglyphics, and even shaped into Palaeolithic hand - axes.

Sea otters off the Alaskan coast play a pivotal role in marine ecosystems: By dining on sea urchins, the animals help preserve kelp forests that feed a range of species, from barnacles to bald eaglSea otters off the Alaskan coast play a pivotal role in marine ecosystems: By dining on sea urchins, the animals help preserve kelp forests that feed a range of species, from barnacles to bald eaglsea urchins, the animals help preserve kelp forests that feed a range of species, from barnacles to bald eagles.

In 1914 Boveri observed that sea urchin embryos with abnormal amounts of chromosomal material, a condition called aneuploidy, looked cancerous.

The scientists documented almost 100 percent mortality of purple sea urchins and six - armed sea stars over the study area, which stretched from southern Mendocino County to Bodega Bay in Sonoma County.

In August 2011, scientists at the UC Davis Bodega Marine Laboratory walked into their labs to a strange, disturbing sight: Thousands of purple sea urchins and other marine invertebrates were dead in their tanks, which are fed directly by seawateIn August 2011, scientists at the UC Davis Bodega Marine Laboratory walked into their labs to a strange, disturbing sight: Thousands of purple sea urchins and other marine invertebrates were dead in their tanks, which are fed directly by seawatein their tanks, which are fed directly by seawater.

«We might not have known urchins and six - armed sea stars were affected if lab - held animals hadn't died right in front of us,» said the study's lead author Laura Jurgens, a graduate student at UC Davis Bodega Marine Laboratory who earned her doctorate in May.

Intertidal zones that once looked like pools of purple held only burrows in the bedrock — telltale markers that purple sea urchins were once there.

Immunologist Jonathan Rast of University of Toronto in Canada initially noticed hints of a Rag1 - like gene in the data produced by scientists sequencing the sea urchin's genome.

Although the function of these sea urchin genes is not yet known, their proteins form complexes in a manner similar to RAG1 and RAG2, says Fugmann.

The discovery of apparent Rag1 and Rag2 genes in the purple sea urchin (Strongylocentrotus purpuratas)-- an invertebrate — promises to shake up this idea.

David Schatz of Yale University, who studies the origin of VDJ recombination, isn't yet totally convinced the sea urchin genes are in fact versions of RAG1 and RAG2.

Sea urchins may not have brains, but they've managed to outsmart the scientists studying them by growing their sharp spines in ways that seem to defy the laws of nature.

«We looked in the water and there were sea urchins everywhere — and no kelp.»

In Venomous, molecular biologist Christie Wilcox surveys the animal kingdom's wide array of biochemical warriors, from spiders and snakes to sea urchins and centipedes.

«Sea urchins, little tiny crabs, marine worms live down in there,» along with many other species, Gaylord said.

The research published in the journal Science Advances predicts that as the oceans warm fish — which appear to be superior predators in warm water — will extend their ranges away from the equator and cause a decline in the diversity of invertebrates such as crabs, lobsters, sea urchins and whelks.

Studies on sea urchins provided the missing link because they have a protein with elements common to those in both humans and insects and reveal a common ancestry hundreds of millions of years ago.

The researchers at Queen Mary University of London, led by Professor Maurice Elphick, were investigating whether a particular sea urchin neuropeptide was an evolutionary link between neuropeptides in humans and insects.

The sea otter (Enhydra lutris), sea urchin (Strongylocentrotus polyacanthus), and kelp (Laminaria spp. and Agarum cribrosum) cascade reported by marine ecologist James Estes in Alaska provides a classic example.

A thin section of sea urchin spine reveals this structural principle: crystalline blocks in an orderly structure are surrounded by a softer amorphous area.

In a new study recently published in the journal Global Biogeochemical Cycles, scientists of Kiel University (CAU) with colleagues from GEOMAR Helmholtz Centre for Ocean Research Kiel and international partners from the USA, New Zealand, and Great Britain studied marine benthic shell - forming organisms around the world in relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturationIn a new study recently published in the journal Global Biogeochemical Cycles, scientists of Kiel University (CAU) with colleagues from GEOMAR Helmholtz Centre for Ocean Research Kiel and international partners from the USA, New Zealand, and Great Britain studied marine benthic shell - forming organisms around the world in relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturationin the journal Global Biogeochemical Cycles, scientists of Kiel University (CAU) with colleagues from GEOMAR Helmholtz Centre for Ocean Research Kiel and international partners from the USA, New Zealand, and Great Britain studied marine benthic shell - forming organisms around the world in relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturationin relation to the chemical conditions they currently experience — with a surprising result: 24 percent, almost a quarter of the analyzed species, including sea urchins, sea stars, coralline algae or snails, already live in seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturationin seawater unfavorable to the maintenance of their calcareous skeletons and shells (a condition referred to as CaCO3 - undersaturation).

In situ measurements of righting behavior in the common sea urchin Lytechinus variegatus: the importance of body size, substrate type, and covering materiaIn situ measurements of righting behavior in the common sea urchin Lytechinus variegatus: the importance of body size, substrate type, and covering materiain the common sea urchin Lytechinus variegatus: the importance of body size, substrate type, and covering material.

Maintenance of somatic tissue regeneration with age in short - and long - lived species of sea urchins.

With no otters to eat them, sea urchins thrive and gorge on kelp forests — often called the «rainforests of the oceans» — resulting in major CO2 releases.

This story begins in the kelp forest and ends with a very important climate change message: All is not lost — at least not for purple sea urchins.

«Biologists discover that female purple sea urchins prime their progeny to succeed in the face of stress.»

The yellow mussels and pink sea urchins living around the fissures are unlike those creatures living around the better known vents in the Pacific.

Commonly found in the waters from Baja California to Point Conception — although they can sometimes be found as far north as Monterey Bay — sheephead feed on sea urchins, whose grazing habits can wreak havoc on community composition in kelp forests.