Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/34680
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dc.contributor.authorIbrahim, R.M.-
dc.contributor.authorMohammad, S.H.-
dc.contributor.authorMohamed, S.Z.-
dc.contributor.authorMorsy, Z. S.-
dc.date.accessioned2016-07-05T09:03:06Z-
dc.date.available2016-07-05T09:03:06Z-
dc.date.issued2015-03-
dc.identifier.issn0975-1033 (Online); 0379-5136 (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/34680-
dc.description287-296en_US
dc.description.abstractPresent study deals with the reproductive cycle of the two clams Donax semistriatus and Donax trunculus (Bivalvia: Mollusca) and it is the first in this region. Specimens of these animals were collected monthly from two sites, one of them located at waterway that discharges waste water from irrigation canal. The reproductive stages of D. semistriatus and D. trunculus were classified into: inactive, early active, late active, ripe, partially spent and spent stages. Males of D. semistriatus were higher than females at both sites (male: female ratio was 1.47:1 in site 1 and 1.54:1 in site 2). Meanwhile, male  D. trunculus outnumbered females in site 1 (1.38:1), and females made up a slightly higher proportion than males (1:1.13) in site 2. The sexual cycle of both species showed inactive gonad in the winter while the sexual activity was mainly detectable during spring and summer. Both species showed no signs of hermaphroditism. Temperature is found to be the factor which possibly triggers reproduction.en_US
dc.language.isoen_USen_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJMS Vol.44(03) [March 2015]en_US
dc.subjectDonax semistriatusen_US
dc.subjectDonax trunculusen_US
dc.subjectDonacidaeen_US
dc.subjectReproductionen_US
dc.subjectEgypten_US
dc.titleAspects on the reproductive cycle of Donax semistriatus and Donax trunculus (Mollusca: Bivalvia) in Idku, Egypten_US
dc.typeArticleen_US
Appears in Collections: IJMS Vol.44(03) [March 2015]

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