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Morphometrics and Length-Weight Relationship in the Blue Swimmer Crab, Portunus pelagicus (Linnaeus, 1758) (Decapoda, Brachyura) from the Mandapam Coast, India

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Title Morphometrics and Length-Weight Relationship in the Blue Swimmer Crab, Portunus pelagicus (Linnaeus, 1758)
(Decapoda, Brachyura) from the Mandapam Coast, India
Not Available
 
Creator Josileen,Jose
 
Subject Morphometrics
Length-Weight Relationship
Blue Swimmer Crab
Portunus pelagicus
(Decapoda, Brachyura) from the Mandapam Coast, India
 
Description Not Available
In this study, the interrelationships between various morphometric characters, viz., carapace
width and length and chelar propodus length and height in males, as well as carapace width and
length and abdominal width and length in females, were estimated using a total of 980 crabs,
Portunus pelagicus. The carapace width/length — weight relationship was studied in both sexes
on a total of 1188 crabs using the allometric growth equation of Von Bertalanffy. The allometric
relationships between the characters of this set suggest that most relationships are positive and
highly significant. The ‘b’ values for carapace width-weight in males and females were 3.607 and
3.293, respectively, and for carapace length-weight they were 3.049 and 2.774, respectively. The
results show a significant deviation from an isometric growth pattern. An analysis of covariance
indicates that there is a significant difference between sexes with respect to the carapace widthweight
relationship
Not Available
 
Date 2021-09-16T06:09:56Z
2021-09-16T06:09:56Z
2011
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62856
 
Language English
 
Relation Not Available
 
Publisher Kluwer