Leptuca cumulanta has four zoeal
stages and one megalopal stage (TNR, ASdeS, FAA, DJBS, M.
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.
Effect of tank colouration on the feeding rates of zoeal
larvae of the giant freshwater shrimp Macrobrachium rosenbergii.
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
Latitudinal variation in the Dungeness crab, Cancer magister: zoeal
morphology explained by incubation temperature.