Early post-cleavage stages and abnormalities identified in the embryonic development of chokka squid eggs Loligo vulgaris reynaudii

Six early, post-cleavage embryonic stages for chokka squid Loligo vulgaris reynaudii eggs that were developed in an aquarium are identified and described, expanding the embryonic stages for this species from 14 to 20. The influence of water temperature on embryonic development is described. At tempe...

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Bibliographic Details
Published in:South African journal of marine science 2002-01, Vol.24 (24), p.379-382
Main Authors: Oosthuizen, A. (Port Elizabeth Univ. (South Africa). Zoology Dept.), Roberts, M.J, Sauer, W.H.H
Format: Article
Language:English
Subjects:
AFRIQUE DU SUD
DESARROLLO EMBRIONARIO
DEVELOPPEMENT EMBRYONNAIRE
EMBRYONIC DEVELOPMENT
GENETIC DISORDERS
LOLIGO
Loligo vulgaris reynaudii
Marine
OVA
OVULE
OVULO
SOUTH AFRICA
SUDAFRICA
TRASTORNOS GENETICOS
TROUBLE GENETIQUE
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Description
Summary:Six early, post-cleavage embryonic stages for chokka squid Loligo vulgaris reynaudii eggs that were developed in an aquarium are identified and described, expanding the embryonic stages for this species from 14 to 20. The influence of water temperature on embryonic development is described. At temperatures 15 degree C, high percentages of morphological abnormalities were observed in embryonic development. Gross forms are described and illustrated.
ISSN:0257-7615
DOI:10.2989/025776102784528367