Carapace Width -Weight Relationship Of Mud Crab Scylla Serrata (Forskal, 1775) Collected From Pulicat Lake, Tamilnadu, India

Gayathre, V. Lakshme; Felix, S.; Durairaja, R

doi:10.21013/jas.v5.n1.p5

Cited by 1 publication

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“…The study of carapace width-weight relationships assumes an important prerequisite in biology, physiology and ecology (Froese 2006;Mohapatra et al 2010;Thirunavukkarasu and Shanmugam 2011). The estimation is useful to determine the variations in expected weight from the known length groups which are one after another the indication of size, reproduction and nourishing states (Gayathre et al 2016). Application of this study for aquatic animals has done in delineating the growth patterns during their developmental pathways (Bagenal 1978).…”

Section: Introductionmentioning

confidence: 99%

Carapace length-weight and width-weight relationships of Scylla serrata in Bulungan District, North Kalimantan, Indonesia

et al. 2017

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Widigdo B, Rukisah, Laga A, Hakim AA, Wardiatno Y. 2017. Carapace length-weight and width-weight relationships of Scylla serrata in Bulungan District, North Kalimantan, Indonesia. Biodiversitas 18: 1316-1323. The mud crab, Scylla serrata lives associated with mangrove ecosystems and is widely distributed in the Indo West-Pacific. The present work was aimed to reveal the carapace length/width-weight relationships of Scylla serrata in two mangrove ecosystem area of Bulungan District, North Kalimantan- Indonesia, i.e. Kahayan Delta and Tibi Island. The crabs were collected by using ambau pancang (trap) for two months from November to December 2016. A total of 522 individuals were collected and their carapace length, carapace width, and weight were measured. The sex ratio of total collected samples (male to female) was 1:0.79. Carapace length and width of S. serrata caught in these two study area ranged from 40 to 89 mm for male; 32 to 91 mm for female and 59 to 128 mm for male; 53 to 122 mm for female, respectively. The carapace length-weight relationships of total samples showed logarithmic equations as follow: W = -3.2194 + 2.9725 Log CL for male and Log W = -2.2010 + 2.3750 Log CL for female. While the carapace width-weight relationships are as follow: W = -3.9162 + 3.1012 Log CW for male and Log W = -2.6001 + 2.3968 Log CW for female. The b values of carapace width-weight relationship indicated that the growth pattern of male was positive allometric and female was negative allometric. Size frequency of crab population is also presented.

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Section: Introductionmentioning

confidence: 99%