n. pl. zo·e·ae (-ē′ē) or zo·e·as
A larval form of crabs and certain other decapod crustaceans, characterized by thoracic appendages used for swimming and often one or more spines on the carapace.

[New Latin, from Greek zōē, life; see azo-.]

zo·e′al adj.


(Zoology) denoting a larval stage of crabs and related crustaceans, during which there are spines on the body and the limbs are not fully developed
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Signs of larval necrosis were suppressed significantly leading to higher survival rate in the early rearing period until the fourth zoeal stage when crab were treated with probiotics.
Following the nauplius phase is the zoeal phase, which includes three protozoeal (PZ1-PZ3) and three mysis (M1-M3) stages.
Larvae of both species pass through 4 zoeal stages (ZI-ZIV) and 1 glaucothoe stage (G) before they metamorphose to the first benthic crab stage (Cl) (Sato and Tanaka, 1949; Hoffman, 1968); therefore, these larval stages provide an opportunity to explore the utility of this model.
These cells migrate to a dorsolateral position in naupliar and zoeal stages, and gradually enter the genital ridge at the mysis 1 stage.
Shrimp species share the same life cycle, as described by Ryan Gandy at FWC: "Growth stages for shrimp are: egg, nauplii, zoeal, mysis, post larval, juvenile, adult.
Illustrated keys for the identification of the Pleocyemata (Crustacea: Decapoda) zoeal stages, from the coastal region of south-western Europe.
Data on larval development and growth are poor for some brachyuran groups, and most larval descriptions deal only with the first zoeal stages because of the difficulties encountered in appropriately feeding the small late larval stages (Ingle 1987; Cuesta & Rodriguez 2000).
The larval development of Lepidopa myops Stimpson, (Decapoda, Albuneidae) reared in the laboratory, and the zoeal stages of another species of the genus from California and the Pacific Coast of Baja California, Mexico.
The effect of salinity on larval development of Uca tangeri (Eydoux, 1835) (Brachyura: Ocypodidae) and new findings of the zoeal morphology.
Latitudinal variation in the Dungeness crab, Cancer magister: zoeal morphology explained by incubation temperature.
ohione larvae have extended marine planktonic development with several zoeal stages (Dugan, 1971).