Oxygen consumption in zoeae
and post-larvae was assessed using a high precision respirometry system for aquatic animals (Strathkelvin Instruments).
crinipes correspond to those that define the zoeae
of Grapsidae according to Fransozo et al.
Mostly, the zoeae
, which either moved with water current created by aeration or clung to the sides of the tanks survived better.
The null hypothesis was that there are no differences in the development rate or survival of zoeae
brooded in or developing in waters of southern Californian embayments when compared with zoeae
developing in a nearby exposed coastal environment.
At the beginning of the benthic stage, the juvenile octopuses were fed a mix of king crab zoeae
and live wild juveniles of the crab Petrolisthes laevigatas; later they were fed only juvenile crabs weighing between 0.
A description of laboratory-reared zoeae
of Cancer magister Dana and megalopae taken under natural conditions (Decapoda: Brachyura).
Hatching of eggs occurs near the barrier islands with the zoeae
(first larval stage) immediately transported to surface waters of the open GOM (Perry & Stuck 1982).
may ingest several species of Alexandrium sp.
are retained in estuaries near the adult habitats (Sandifer, 1973, 1975; Cronin, 1982; Goncalves et al.
Females spawn on the continental shelf at about 30 m of depth, where larvae develop, passing through several changes in feeding habitats, behavior, and physical stages (nauplii, zoeae
, myses) (Dobkin, 1961; Ewald, 1965; Jones et al.
If larger eggs produced early in the spawning season yield zoeae
and postsettlement juveniles with better survivorship, then the number of postsettlement juveniles should have been high in 1993, and possibly 1994, compared with 1995, assuming that overall spawning effort was statistically similar over months and years.
I are completely lecithotrophic, but all yolk reserves are used or disappear after the molt to Zoea II which, as in later stages, is completely planktotrophic (Bauer & Delahoussaye, 2008 and references therein).