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Studies on the developmental stages of hammerhead Shark Sphyrna (eusphyrna) blochil from The Gulf of Mannar

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Relation http://eprints.cmfri.org.in/742/
 
Title Studies on the developmental stages of hammerhead
Shark Sphyrna (eusphyrna) blochil from
The Gulf of Mannar
 
Creator Appukuttan, K K
 
Subject Shark fisheries
 
Description Various stages of intra-uterine embryos of Sphyrna blocliii collected from
the Gulf of Mannar are described and discussed. Uterine compartments are formed
in this species which exhibit multipb pregnancy. An embryonic membrane store
ch.amiber is present in each uterine comrpartment. The placenta of this species is of
yolk-sac type and is formed at the stage in between 125 mm and 210 mm; yolk
persist in the yolk-sac even when the placental connection is established with the
mother. The placantation process observed in this species is almost similiar to that
of S. tiburo and Carcltarhinus dussumieri. The probable gestation period and other
details of placentation are discussed.
 
Publisher CMFRI/ICAR
 
Date 1978
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/742/1/Article_09.pdf
Appukuttan, K K (1978) Studies on the developmental stages of hammerhead Shark Sphyrna (eusphyrna) blochil from The Gulf of Mannar. Indian Journal of Fisheries, 25 (1&2). pp. 41-52.