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Observations on the breeding and development in some batoid fishes

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Relation http://eprints.cmfri.org.in/179/
 
Title Observations on the breeding and development
in some batoid fishes
 
Creator Devadoss, P
 
Subject Fish breeding
 
Description Studies on the breeding and development of guitar fishes, electric rays and
sting rays revealed that they are ovoviviparous where there is no placental
connection between the young and the mother. In guitar fish, both right and
left ovaries are functional along with the uteri whereas in the electric ray
Narcine and the sting ray Dasyatis only the left ovary and uterus are
functional. Some of the embryonic characters generally observed are the
presence of gill flaments emerging outside the gill clefts and incomplete fusion
of pectoral fin with head without forming disc. All Dasyatis spp. produce one
or two embryos in a litter while the butterfly ray produces a maximum of 6
embryos and the guitar fish Rhiobatus up to 16 young ones.
 
Publisher CMFRI/ICAR
 
Date 1998
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/179/1/Article_08.pdf
Devadoss, P (1998) Observations on the breeding and development in some batoid fishes. Indian Journal of Fisheries, 45 (3). pp. 271-283.