Oyster is the common name for a number of different families of salt-water bivalve molluscs that live in marine or brackish habitats. In some species, the valves are highly calcified, and many are somewhat irregular in shape. Many, but not all oysters, are in the superfamily Ostreoidea.

2024年2月11日 · There are various types of oysters, from those found in coastal marshes to those hidden in coral reefs. Biologists, ecologists, and gourmets alike have marveled at the diversity of these mollusks. Despite their simple exterior, oysters have unique characteristics and behaviors that warrant study.

One of the most commonly cultivated oysters is the Pacific oyster, which is ideally suited for cultivation in seawater ponds.

Ostreoidea is a taxonomic superfamily of bivalve marine mollusc, sometimes simply identified as oysters, [1] containing two families. The ostreoids are characterized in part by the presence of a well developed axial rod. [2] . Anal flaps are known to exist within the family Ostreidae but not within the more-primitive Gryphaeidae. [3] .

2024年12月14日 · Oyster, any member of the families Ostreidae (true oysters) or Aviculidae (pearl oysters), bivalve mollusks found in temperate and warm coastal waters of all oceans. Bivalves known as thorny oysters (Spondylus) and saddle oysters (Anomia) are sometimes included in the group.

2024年5月27日 · Oysters make up a family of a large number of salt-water bivalve mollusks. Oysters are marine animals that are often found in brackish habitats. They are very irregular in shape and the valves of some are highly calcified. They belong to the phylum Mollusca.

Oysters are a family of bivalves with rough, thick shells, the Ostreidae. Some other types of shellfish are also called 'oyster'. Many species are edible, and are usually served raw. They are also good when cooked. In the past, they were an important food …

The true oysters are different from the pearl oyster family, and though they can secret pearls, the results are usually irregular, small and of no value. Ostreidae are valued as food world-wide. There are 5 species found in Texas waters.

Oyster is the common name applied to various bivalve mollusks, and in particular the "true oysters" comprising family Ostreidae of the Ostreoida order and the pearl oysters of family Pteriidae (syn. Aviculidae) in the Pterioida order. The shell of oysters consists of two usually highly calcified valves (shells) that surround a soft body.

Oyster Ecology • Lives on surface of sediments • Sessile - stays in one place • Forms reefs - intertidal and subtidal • “Foundation” or “keystone” species • Provides habitat for many species by creating hard substrate for attachment and refuge •