阿尔及利亚西海岸红海星的繁殖生物学

IF 0.7 4区生物学 Q4 REPRODUCTIVE BIOLOGY

Invertebrate Reproduction & Development Pub Date : 2022-06-26 DOI:10.1080/07924259.2022.2090865

K. Mezali, Zineb Lebouazda, Hocine Benzait, D. Soualili

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引用次数: 0

摘要

摘要本工作旨在首次描述阿尔及利亚西部地区红海星Echinaster sepositus的繁殖生物学。sepositus种群的性别比为1:2（雌性：雄性）。臂长和湿体重之间的关系表明负异速生长。组织学研究揭示了雌性性成熟的六个阶段（I：发育；II：早熟；III：成熟；IV：部分繁殖；V：产卵后；VI：恢复）和雄性性成熟的五个阶段（Ⅰ：发育；Ⅱ：早熟；III：成熟；V：繁殖后；Ⅵ：恢复）。性腺体指数显示，每年只有一个产卵期，发生在7月至11月。sepositus的性腺成熟和配子发生与温度和光周期等环境因素有关。

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Reproductive biology of the red starfish Echinaster sepositus (Echinodermata, Asteroidea) from the Algerian west coast

ABSTRACT This work aims to describe for the first time the reproductive biology of the red starfish Echinaster sepositus at the western region of Algeria (Mostaganem). The population of E. sepositus is characterized by a sex ratio of 1:2 (female: male). The relation between arm length and wet body weight indicate a negative allometric growth. Histological study reveals six stages of sexual maturity in females (I: development; II: pre-mature; III: mature; IV: partly spawned; V: post – spawning; VI: recovery) and five stages in males (I: development; II: pre-mature; III: mature; V: post-spawning; VI: recovery). The gonadosomatic index shows that there is only one spawning period per year, which happens from July to November. The gonadal maturity and gametogenesis of E. sepositus are correlated with the environmental factors namely temperature and photoperiod.

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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.