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The aim of this work is to study the biometric and reproductive characteristics of a population of  Holothuria poli  from the west Algerian coast. The study was carried out on 256 individuals (33.25 ± 12.38 g wet weight and 196.44 ± 37.81 mm relaxed length) collected from Oran Bay between October 2016 and September 2017. All individuals showed negative allometric growth (b = 1.586) and the population had a sex ratio of 1: 1 (male: female). Sexual maturity occurred at a relaxed length of 137 mm and at gutted body weight of 18 g. Macroscopic examination of the gonadal tubules revealed four sexual maturity stages (growth, maturity, spawning and post-spawning) and a reproductive pattern characterized by a single summer spawning period and autumnal sexual rest. The obtained data may constitute a database for the management of natural stocks of this sea cucumber species in Algerian waters.

invertebrate reproduction and development

Biometry, size structure and reproductive cycle of the sanded sea cucumbers  Holothuria poli  (Echinodermata, Holothuriidae) from the west Algerian coast