ostracod

Thân thiện

A scientist examines an ostracod under a microscope.

Definition

Noun: A very small aquatic crustacean, typically living in marine or freshwater environments. Its body resembles that of a shrimp but is completely enclosed within a bivalve (two-part) shell, like a tiny clam. Also commonly known as a "seed shrimp."

Usage

The word "ostracod" is a scientific term used primarily in biology, paleontology, and environmental science. It refers to the animal itself. - The sediment sample was full of fossilized ostracods. - Researchers study ostracod shells to understand historical climate conditions.

Advanced Usage

• Indicator Species: In ecology, ostracods are often cited as valuable bioindicators for assessing water quality and paleoenvironmental conditions due to their sensitivity to changes in their habitat.
  • The presence of specific ostracod species indicates a previously saline lake environment.

Variants and Related Words

• Ostracode: An alternative, less common spelling for "ostracod."
• Seed Shrimp: The common name for ostracods.
• Ostracoda: The scientific class name to which all ostracods belong.

Synonyms

• Mussel shrimp: Another common name for ostracods.
• Podocopid: Refers to a major order of ostracods (Podocopida), often used in more specific taxonomic contexts.

Related Phrases / Terms

• Ostracod valve: Refers to one of the two halves of the bivalve shell.
  • The ostracod valve showed intricate surface ornamentation under the microscope.
• Ostracod assemblage: A term used in paleontology to describe a group or community of ostracod fossils found together.
  • The ostracod assemblage suggests a deep, cold-water paleolake.

Học thuật

Noun

1. tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell

Từ đồng nghĩa

• seed shrimp
• mussel shrimp