Seasonal population patterns of Holothuria Arenicola Semper, 1868 from Karachi coast, Northern Arabian Sea

Year 2020, Volume: 9 Issue: 2, 188 - 194, 31.12.2020

Quratulan Ahmed , Semra Benzer , Qadeer Mohammad Ali

https://doi.org/10.33714/masteb.754341

Abstract

The present study was carried out to assess the reproduction weight-length based growth and condition factor of Holothuria arenicola Semper, 1868, from January to December 2018, in Karachi coast, Northern Arabian Sea. The sex percentage was determined as 33.3% females and 66.7% males. Length of specimens ranged from 14 and 38 cm and weight of specimens ranged from 21 and 82 g. The relationship was W = 2.408 L^0.9482 (R² = 0.999) for females, W = 0.989 L^0.9482 (R² = 0.998) for males and W = 1.234 L^1.1565 (R² = 0.999) for all individual. The condition factor ranged between 0.84 and 2.62 (mean: 1.52±0.70) in females and between 0.83 and 2.67 (mean: 1.43±0.71) in males. The gonadosomatic index of specimens ranged between 5.50 and 10.66 (mean: 7.95±1.24). The gutted weight of specimens ranged between 2.10 and 11.44 g (mean: 4.91±1.77). Studies about environmental variables and characteristics are necessary in order to complement the understanding of reproduction, the length-weight relationships and condition of sea cucumber in Karachi coast.

Keywords

Arabian Sea, Sand cucumber, Karachi coast, Holothuria arenicola, Population

Thanks

This study was written while at home quarantine during the COVID-19 pandemic.

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