Length-weight relationship and condition factor in Holothuria arenicola (Holothuroidea : Echinodermata) found on two rocky coasts of Karachi, Pakistan
The length-weight relationship and condition factor is determined forHolothuria arenicola collected between April 2011 to November 2012 from rocky shoresof Manora and Buleji. The maximum total length recorded for this species was 416.0 mmat Manora and 376.0 mm at Buleji. Sex-wise and season wise LWR and slope (b) valuesrevealed the negative allometric growth (b not equal to 3, P < 0.001) at both sites. Thelength-weight relationship in H. arenicola during different seasons showed the b value torange between 1.850 to 2.384 at Manora and 2.124 to 2.401 at Buleji. Correlation coefficientwere noticed highly significant for sex and season wise with a good correlationbetween length and weight. The condition factor (Kn) for H. arenicola rangedbetween1.04 to 1.96 at Manora and 0.87 to 1.8 at Buleji. Analysis of variance showedthat there is statistically significant difference between the means of the Kn values in 19months at Manora (ANOVA, F = 10.96; P < 0.05) and Buleji (ANOVA, F = 13.42; P <0.05) and in various seasons at Manora (ANOVA, F = 86.529; P < 0.05) and Buleji (F =56.285; P < 0.05).
| Main Authors: | , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2014
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| Subjects: | Biology, Holothuria arenicola, length-weight relationship, condition factor, Karachi coast, Pakistan, |
| Online Access: | http://hdl.handle.net/1834/40788 |
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| Summary: | The length-weight relationship and condition factor is determined forHolothuria arenicola collected between April 2011 to November 2012 from rocky shoresof Manora and Buleji. The maximum total length recorded for this species was 416.0 mmat Manora and 376.0 mm at Buleji. Sex-wise and season wise LWR and slope (b) valuesrevealed the negative allometric growth (b not equal to 3, P < 0.001) at both sites. Thelength-weight relationship in H. arenicola during different seasons showed the b value torange between 1.850 to 2.384 at Manora and 2.124 to 2.401 at Buleji. Correlation coefficientwere noticed highly significant for sex and season wise with a good correlationbetween length and weight. The condition factor (Kn) for H. arenicola rangedbetween1.04 to 1.96 at Manora and 0.87 to 1.8 at Buleji. Analysis of variance showedthat there is statistically significant difference between the means of the Kn values in 19months at Manora (ANOVA, F = 10.96; P < 0.05) and Buleji (ANOVA, F = 13.42; P <0.05) and in various seasons at Manora (ANOVA, F = 86.529; P < 0.05) and Buleji (F =56.285; P < 0.05). |
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