Sentences with phrase «urchins produce»

The initial step is a precursor, during which the urchins produce amorphous calcium carbonate.

The study found that the pink sea urchin is most abundant at a depth of 250 to 300 meters (820 to 984 feet), similar depths where spot prawn fishers set their traps, and that winter was the primary time when the urchins produced edible roe.

Not exact matches

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.

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.

This hinders the ability of organisms such as molluscs, sea urchins, coralline algae and cold - water corals to produce their calcified shells and skeletons, affecting their survival.