Oysters: Composition of the Larval Shell

  title={Oysters: Composition of the Larval Shell},
  author={Henryk Bronislaw Stenzel},
  pages={155 - 156}
The shell of the freeswimming veliger larval stage of the common North American oyster Crassostrea virginica (Gmelin, 1791) is composed of aragonite. This composition contrasts with that of the adult shell, which is composed mainly of calcite, the rhombohedral allomorph of calcium carbonate, and minor amounts of aragonite. 

A New Mineralized Layer in the Hinge of the Oyster

A discrete, calcareous layer that binds the foliated calcite of the oyster's shell to the organic ligament in the hinge is reported, apparently for the first time. This layer is ultrastructurally,

Microtexture of larval shell of oyster, Crassostrea nippona: a FIB-TEM study.

Induced adhesion in Crassostrea virginica larvae.

Normal motile veliger larvae of the oyster, Crassostrea virginica, were observed swimming in pairs or trios. Adhesion between animals is firm and has a specific orientation. This adhesion can be

Title Larval and Post-Larval Stages of Pacific Oyster ( Crassostreagigas ) Are Resistant to Elevated CO 2

The average pH of surface oceans has decreased by 0.1 unit since industrialization and is expected to decrease by another 0.3–0.7 units before the year 2300 due to the absorption of anthropogenic

Larval and Post-Larval Stages of Pacific Oyster (Crassostrea gigas) Are Resistant to Elevated CO2

Larval and post-larval forms of the C. gigas in the Yellow Sea are probably resistant to elevated CO2 and decreased near-future pH scenarios, and the pre-adapted ability to resist a wide range of decreased pH may provide C. gigs with the necessary tolerance to withstand rapid pH changes over the coming century.


Studies of the larval ecology of fossil organisms can contribute greatly to the understanding of such roles by allowing us to race effects on evolutionary time scales.

Functional morphology and development of veliger larvae of the European oyster, Ostrea edulis Linné

Study of body and shell in a growth series revealed many structures and patterns of development previously poorly known or unknown: the presence of four ciliary bands on the velum, not three, and the heel-first development of the foot, with medial ciliation of the toe preceding complete ciliation.

The Pacific oyster, Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near‐term ocean acidification effects

Both larval production and midstage growth of the oyster Crassostrea gigas were significantly negatively correlated with the aragonite saturation state of waters in which larval oysters were spawned and reared for the first 48 h of life.

Microstructures of the larval shell of a pearl oyster, Pinctada fucata, investigated by FIB-TEM technique

Abstract The structure of the larval shell of a pearl oyster, Pinctada fucata, has been investigated at several growing stages mainly using the focused ion beam (FIB) sample preparation technique and

Mollusc larval shell formation: amorphous calcium carbonate is a precursor phase for aragonite.

It is concluded that ACC fulfills an important function in mollusc larval shell formation and it is conceivable that ACC may also be involved in adult shell formation.



Aragonite and Calcite as Constituents of Adult Oyster Shells

Adult oyster shells are composed mainly of calcite, but there are five small areas of aragonite: the resilium, the two pads at which the adductor muscle is inserted, and the two pads at which

Proposed Explanation of Luminous Particles Observed in Glenn Orbital Flight

It is proposed that the luminous particles observed by John Glenn in his orbital flight are condensed nitrogen and possibly oxygen. Irradiation by the sun would produce excited trapped radicals,


  • Oceanog. Bull. (Monaco)

Selskabs Skrifter

  • Naturv. Mat. Afdel. ser
  • 1930