摩洛哥大西洋沿岸中部地区Engraulis encrasicolus (Linnaeus, 1758)的成熟、繁殖期和产卵期的大小

IF 1.4 Q3 MARINE & FRESHWATER BIOLOGY

International Aquatic Research Pub Date : 2020-09-01 DOI:10.22034/IAR.2020.1896027.1027

Mouna El Qendouci, K. Amenzoui, A. Yahyaoui

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引用次数: 1

摘要

2016年1月至12月，为了调查摩洛哥大西洋沿岸中部地区Engraulis encrasicolus (Linnaeus, 1758)的生殖参数，本研究进行了。对捕获的1633尾鱼进行数据分析，雌鱼850尾，雄鱼783尾，平均雄鱼性别比为46.51% (χ2= 2.74;P < 0.05)。性腺-体指数(GSI)表明，产卵活动发生在4 - 11月，6 - 8月最高。两性初次性成熟时的大小大致相同，为10.5 cm。估计的繁殖力在7323 ~ 21230之间变化，与鱼长和体重呈正相关。本研究为该地区被调查物种的管理和保护提供了必要的信息。

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Size at maturity, fecundity and spawning period of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast

This study was conducted in order to investigate reproductive parameters of anchovy Engraulis encrasicolus (Linnaeus, 1758) in the central area of the Moroccan Atlantic coast, from January to December 2016. The data analysis based on a total of 1633 collected fish suggest that 850 and 783 were females and males respectively with an average male sex-ratio of 46.51% (χ2= 2.74; P > 0.05). The Gonado-somatic index (GSI) indicated that spawning activity occurred from April to November exhibiting the highest value between June and August. The size at first sexual maturity was approximately the same for both sexes and corresponds to 10.5 cm. The fecundity estimated varied from 7323 to 21230 and was positively correlated to the fish length and weight. This study was necessary to fill the knowledge gap and provide information for the management and conservation of the investigated species in this area.

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来源期刊

International Aquatic Research MARINE & FRESHWATER BIOLOGY-

CiteScore

2.40

自引率

7.70%

发文量

审稿时长

12 weeks

期刊介绍： The journal (IAR) is an international journal that publishes original research articles, short communications, and review articles in a broad range of areas relevant to all aspects of aquatic sciences (freshwater and marine). The Journal specifically strives to increase the knowledge of most aspects of applied researches in both cultivated and wild aquatic animals in the world. The journal is fully sponsored, which means it is free of charge for authors. The journal operates a single-blind peer review process. The main research areas in aquatic sciences include: -Aquaculture- Ecology- Food science and technology- Molecular biology- Nutrition- Physiology- Water quality- Climate Change