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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
Larval development includes seven zoeal stages followed by a single megalopal stage (Kennedy 2007, Fig.
The congeneric species Allopetrolisthes angulosus completed the zoeal development on average in 23.2 days (Wehrtmann et al., 1996), while the zoeal development of Petrolisthes laevigatus, another porcellanid crab from Chile, lasted 39.7 and 21.5 days at 13 and 20oC, respectively (Mascetti & Wehrtmann, 1996).
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." He continued regarding their diet: "Shrimp live off phytoplankton and zooplankton as larvae and early postlarvae when they are living in the water column Then, they settle to the bottom and feed on anything from plant matter to small organisms in the soil."
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).
Galgani and AQUACOP, "Replacement of live unicellular algae by microparticulate diet during larval rearing of zoeal stages of some penaeid prawns," Aquaculture, vol.
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.