bivalves

When bivalves ruled the world

Before the worst mass extinction of life in Earths history 252 million years ago ocean life was diverse and clam-like organisms called brachiopods dominated. After the calamity, when little else existed, a different kind of clam-like organism, called a bivalve, took over. What can the separat...

Edible bivalves as a source of human pathogens: signals between vibrios and the bivalve host.

Clams, mussels and oysters are important vehicles for the transmission of enteric diseases when consumed raw or undercooked. Vibrio species, including human pathogens, are particularly abundant in bivalve tissues, where they can persist even after cleaning procedures, thus representing a potential ...

A research work on molluscs nacre opens new doors for its possible use in biomedicine

...gastropods' nacre in detail (pleurotomariidae, turbos, trochus, abalones and others). Such nacre grows forming block towers, as piles of coins, unlike bivalves (nuculas, mussels, nacras, pearl oysters), which grow just like terraces of tablets. Nacre is made up of blocks of aragonite separated by membrans of ...

Life in the extreme

..., Sébastien Duperron from Université Pierre et Marie Curie in France has found unique bacterial symbiosis with mussels. Symbiotic associations between bivalves (mussels) and bacteria allow the former to benefit from the bacteria's ability to chemosynthetically (without light) derive energy from the chemical c...

Study reveals details of mussels' tenacious bonds

...ganic surfaces, sustaining their tenacious bonds in saltwater, including turbulent tidal environments. Little is known, however, about exactly how the bivalves achieve this amazing feat. In a paper to be published online the week of Aug. 14 by the Proceedings of the National Academy of Sciences, a Northwes...

The diversity of marine life in the Gulf of Maine region is much greater than previously thought

..." ?or simply "the clam" -- is a species formally known as Mya arenaria and commonly known as the soft-shelled clam. It is one of 110 known species of bivalves in the Gulf of Maine region, a class of species that also includes mussels, quahogs, and scallops. One of the Gulf of Maine's tastiest delights, ...

Paleontologists learn how not to become a fossil

...sor in Geophysical Sciences. "This gives us some strategies for how to zero in on the most reliable data," she said. The PNAS co-authors focused on bivalves (clams, scallops, oysters, cockles and their kin), because they serve paleontologists the way geneticists use mice or fruit flies as model systems. Ja...

bivalves in Biological Dictionary

Heterodont

...© Webster 1913. ... Beyond Print: enhancing your service. Access and authentication. Article purchasing ... A molecular phylogeny of heterodont bivalves (Mollusca: Bivalvia: Heterodonta) ... ...