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单词 spawning
释义

spawning


spawn

S0610600 (spôn)n.1. The eggs of aquatic animals such as bivalve mollusks, fishes, and amphibians.2. Offspring, especially when occurring in large numbers.3. A product or an outcome: the spawn of a prodigious imagination.4. Mycelia of mushrooms or other fungi grown in specially prepared organic matter for planting in beds.v. spawned, spawn·ing, spawns v.intr.1. To deposit eggs; produce spawn.2. To produce offspring in large numbers.v.tr.1. To produce or deposit (spawn).2. To produce (offspring).3. To produce or give rise to: tyranny that spawned revolt.4. To plant with mycelia grown in specially prepared organic matter.
[Middle English spawne, from spawnen, to spawn, from Anglo-Norman espaundre, from Latin expandere; see expand.]
spawn′er n.

spawning

(ˈspɔːnɪŋ) n1. (Zoology) a. the act or process of producing or depositing eggsb. (as modifier): spawning grounds. 2. (Zoology) (as modifier): spawning grounds.
Thesaurus

spawning

nounThe process by which an organism produces others of its kind:breeding, multiplication, procreation, proliferation, propagation, reproduction.Obsolete: increase.
Translations
fraie

Spawning


Spawning

 

the depositing by fish of their reproductive products—mature roe and milt (seminal fluid, ejaculate)—with subsequent fertilization. In most fish, fertilization of the roe is external, occurring outside the body of the female, in water. Fertilization occurs in certain definite places, or spawning grounds, where conditions for development of offspring are favorable. Lithophilous fishes, such as sturgeons and salmon, deposit their roe on rocks. Phytophilous fishes spawn on vegetation and include the carp and the European bream. The roe of pelagophilous fishes, such as the tolstolobik (Hypophthal-michthys molitrix) and the chekhon’ (Pelecus cultratus), undergo development in open water.

Every species of fish is adapted to particular spawning conditions—to a certain water temperature and salinity and to a specific substrate. Many fishes take on a special mating dress. The presence of certain conditions and of individuals of the other sex signal the start of reproduction. In the USSR much work is being done in the study of spawning conditions and in the protection of the spawning grounds of commercial fishes.

REFERENCES

Nikol’skii, G.V. Ekologiia ryb, 3rd ed. Moscow, 1974.

G. V. NIKOL’SKII

MedicalSeespawn

spawning


  • noun

Synonyms for spawning

noun the process by which an organism produces others of its kind

Synonyms

  • breeding
  • multiplication
  • procreation
  • proliferation
  • propagation
  • reproduction
  • increase
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