Record Details

Reproductive Traits of Sandbird Octopus, Amphioctopus aegina (Gray, 1849) from Mandapam Coastal Waters (Palk Bay), Southeast Coast of India

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Reproductive Traits of Sandbird Octopus, Amphioctopus aegina (Gray, 1849)
from Mandapam Coastal Waters (Palk Bay), Southeast Coast of India
Not Available
 
Creator Ignatius,Boby
Srinivasan,M
Balakrishnan,S
 
Subject Amphioctopus aegina
maturation
spawning
fecundity
size at maturity
 
Description Not Available
The sandbird octopus Amphioctopus aegina (Gray,
1849) is one of the important octopod species in trawl catches
in Mandapam waters (Palk Bay). The reproductive biology of
this species from these waters was studied from October 2001
to September 2002. In the majority of months(Jan-June), the
sex ratio was biased towards males. The ratios of males to
females increased consistently with respect to weight Total
weight at first maturity were 78.78g for females and 40.8 g for
males. Four maturity stags were recognized for females and two
for males. Maturation and spawning occur all year round, with a
peak during October and another peak during January-
February. In males, no definite seasonal changes were observed
in gonadosomatic index (GSI) values. In females there were
two peaks in GSI values during October and January-February.
For individuals of a DML range of 67-85 mm fecundity varied
between 2,962-8,820 oocytes. The average relative fecundity
was estimated at 68 to 83 and the average number oocytes per
gram of ovary were 488 to 539.
Not Available
 
Date 2021-09-16T06:28:18Z
2021-09-16T06:28:18Z
2011
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62899
 
Language English
 
Relation Not Available