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

IF 0.7 4区生物学 Q4 REPRODUCTIVE BIOLOGY

Invertebrate Reproduction & Development Pub Date : 2022-01-02 DOI:10.1080/07924259.2022.2033331

K. Mezali, Zineb Lebouazda, Farah Slimane-Tamacha, Dina Lila Soualili

引用次数: 2

Abstract

ABSTRACT 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.

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阿尔及利亚西海岸沙参Holothuria poli(棘皮目，海参科)的生物学特征、大小结构和繁殖周期

摘要本工作的目的是研究阿尔及利亚西海岸Holothuria poli种群的生物特征和繁殖特征。该研究对2016年10月至2017年9月期间从奥兰湾采集的256名个体（湿重33.25±12.38 g，松弛长度196.44±37.81 mm）进行了研究。所有个体均表现出负的异速生长（b=1.586），群体的性别比为1:1（男性：女性）。性成熟发生在137毫米的松弛长度和18克的内脏体重。性腺小管的宏观检查显示，有四个性成熟阶段（生长、成熟、产卵和产卵后），繁殖模式的特点是夏季产卵期和秋季性休息。所获得的数据可以构成一个数据库，用于管理阿尔及利亚水域中这种海参的自然种群。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Invertebrate Reproduction & Development 生物-动物学

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Reproduction & Development ( IRD) presents original research on the reproductive and developmental biology of the Invertebrata, both embryonic and postembryonic. IRD welcomes papers reporting significant results obtained using new techniques. Encouraged topic areas include: aquaculture, physiology, biochemistry, functional morphology, phylogeny, behavioural and regulatory mechanisms, including genetic, endocrine and molecular studies. Papers containing qualitative descriptions of reproductive cycles and gametogenesis will not be considered. IRD is published in association with the International Society of Invertebrate Reproduction and Development.