The Morphology of the Mandibles in Zoea I Larvae of the Burrowing Shrimp Genera Upogebia (Gebiidea) and Nihonotrypaea (Axiidea)

The mandibles in the first zoeal stage of five species of the burrowing shrimp genera Upogebia (infraorder Gebiidea) and Nihonotrypaea (infraorder Axiidea) have been examined by scanning electron microscopy. The general shape of the mandibles in Upogebia zoeae is similar to that in Anomura larvae; i...

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Bibliographic Details
Published in:Russian journal of marine biology 2018-07, Vol.44 (4), p.292-303
Main Authors: Kornienko, E. S., Golubinskaya, D. D.
Format: Article
Language:English
Subjects:
Animal morphology
Aquatic crustaceans
Biomedical and Life Sciences
Burrowing organisms
Decapoda
Diatoms
Electron microscopy
Freshwater & Marine Ecology
Individual rearing
Larvae
Life Sciences
Mandible
Marine crustaceans
Original Papers
Scanning electron microscopy
Species
Upogebia
Zoeae
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Summary:The mandibles in the first zoeal stage of five species of the burrowing shrimp genera Upogebia (infraorder Gebiidea) and Nihonotrypaea (infraorder Axiidea) have been examined by scanning electron microscopy. The general shape of the mandibles in Upogebia zoeae is similar to that in Anomura larvae; in Nihonotrypaea , it is intermediate between the mandibles of anomuran and caridean shrimp larvae. The asymmetry of the mandibles, which is more pronounced in Nihonotrypaea , is confirmed. Species-specific features of the structure of the incisor process are found in three Upogebia species, while two Nihonotrypaea species almost do not differ in the mandible structure in their zoea I larvae. The morphological features of the mandibles indicate differences in the diet of Upogebia and Nihonotrypaea larvae. Under natural conditions, zoea I of the studied Nihonotrypaea species may feed on diatoms, which should be taken into account when rearing these decapod larvae in the laboratory.
ISSN:1063-0740
1608-3377
DOI:10.1134/S1063074018040053