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Protozoea

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Protozoea 

one of the larval stages in the development of decapod Crustacea. The protozoean stage usually occurs in the egg; a free-floating protozoea is characteristic of a few primitive shrimp. The protozoea has a segmented thorax, an unsegmented abdomen, a cephalothoracic shell, and a pair of compound sessile eyes. After ecdysis, the protozoea passes into the next larval stage, the zoea.
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1972) descreveram um tecido que recobre a cavidade branquial em larvas (a partir de protozoea 3) e PLs de P.
Interference of different acclimation methods on Litopenaeus vannamei ... by Valenca, Anita Rademaker; Mendes, George Nilson / Acta Scientiarum Biological Sciences (UEM)
KEY WORDS: reproduction, habitat, shrimp, Farfantepenaeus californiensis, Gulf of California INTRODUCTION All the known members of the family Penaeidae have a similar life cycle: planktonic larval stages; including nauplius, protozoea, mysis, and postlarva; followed by juvenile and adult stages (Dall et al.
Habitat utilization by the reproductive stock of the brown shrimp ... by Aragon-Noriega, Eugenio Alberto; Cisneros-Mata, Miguel Angel; Alcantara-Razo, Edgar; Valenzuela-Quin / Journal of Shellfish Research
729 Nauplius shape -- pandulate Third stage dorsomedian abdominal protozoea spines 5 3 First stage posterior ventral mysis serrations on the carapace absent absent Third stage statocyst present absent mysis First stage scaphognathite setae postlarva in maxilla 20 21 scaphocerite spines on outer margine of antenna 1 2 thoracic sternal plate spines 2, 2, 0, 0, 0 -- M.
Larval development of the kishi velvet shrimp, Metapenaeopsis dalei ... by Choi, Jung H.; Hong, Sung Y. / Fishery Bulletin
 
 
 
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