Zoea

(redirected from zoeas)
Also found in: Dictionary, Medical.
Related to zoeas: zoeae

zoea

[zō′ē·ə]
(invertebrate zoology)
An early larval stage of decapod crustaceans distinguished by a relatively large cephalothorax, conspicuous eyes, and large, fringed antennae.

Zoea

 

a pelagic larva, one of the developmental stages of decapods. The body consists of a cephalothorax and a segmented abdomen. Only the front thoracic appendages (maxillipeds) and only the hind abdominal appendages (uropods; absent in crab zoea) are developed; the rest are in the embryonic state. The eyes are sessile. The zoea swims with the aid of its maxillipeds. The unique crab zoea have an almost spherical cephalothorax (with long fore, dorsal, and two lateral spines) and narrow abdomen.

References in periodicals archive ?
Diariamente se conto el numero de larvas y se estimo el porcentaje de supervivencia; tambien se cuantifico el total que alcanzo el estadio de zoea II para la salinidad en cuestion.
Therefore if females that had released zoea larvae during any night were placed in different containers, we could expect that many of them would start egg-laying again a few days later.
Among the recorded taxa, 27.8% were very frequent (Table 1), especially the protozoea of Lucifer faxoni and Acetes americanus with 91.7% each, followed by zoea of Pinnixa sp.
De acuerdo al IIR es de manifiesto predominio entre los crustaceos especies de la orden Euphausiacea, siguiendoles en presencia las larvas zoeas y otros tipos de pequenos crustaceos que llegan a ser incluso predominantes al finalizar el ano.
guttatus se alimentan de una gran variedad de presas, entre las que figuran los peces de las familias Engraulidae y Clupeidae, estomatopodos, peneidos, portunidos y larvas de crustaceos (zoea y megalopas).
The 30-kDa band was the stronger of the two bands at 10 and 6 days before hatching; but its intensity declined and became very faint in embryos 4 h before hatching; and it disappeared completely in post-hatched zoeas. In contrast, the 32-kDa band appeared later than the 30-kDa band, but it was still quite clear in embryos 4 h before hatching, and again was not detected in the post-hatched zoeas.
neritico- 1530 oceanico Harpacticoida neritico 17352 Copepoditos 16179 Restos de copepodos 12150 Euphausiacea neritico- 439 oceanico Otros grupos Mysidacea neritico- 3 oceanico Amphipoda neritico- 1 oceanico Bivalvia neritico 222 Gastropoda neritico- 108 oceanico Ostracoda neritico- 10 oceanico Zoea neritico- 50 oceanico Megalopa neritico 728 Huevos de anchoveta neritico- 520 oceanico Huevos de Engraulidae 50 Huevos de pez n/i 114 Huevos de crustaceos 1 Larvas de cirripedos neritico 3300 Larvas de equinodermos neritico 219 Larvas de pez n/i 69 Chaetognata 14 Decapoda reptantia n/i 40 Restos de Myctophidae 140 Restos organicos n/i 110117 Polychaeta neritico 2241 Carbono Presas ([micron]g/ind) DIATOMEAS Actinoptychus undulatus 0.001 Amphiprora sp.
La dieta respecto a la madurez tuvo un comportamiento similar a lo observado con la talla, pero se puede apreciar que en los estadios del 1 al 3, la proporcion de zoeas (%W= 18.1 22.2) y P.
Odonthestes regia en tanto, constituye un grupo independiente que se agrega secundariamente al grupo conformado por "ictiofagos", a pesar que su alimento principal lo constituyen zoeas de crustaceos.
This color is visible over the pleopod photophores in the first zoeas of S.
The first factor was the sampling years (2008, 2009, 2010), the second was the developmental stages (five zoeas), and the third was the distance from the coast (1, 5, 10, and 20 nm).