阿尔及利亚三个种群青蒿包囊质量评价

IF 1.1 4区环境科学与生态学 Q3 MARINE & FRESHWATER BIOLOGY

African Journal of Aquatic Science Pub Date : 2021-04-28 DOI:10.2989/16085914.2021.1895052

C. Chabet Dis, W. Refes, I. Varó, F. Hontoria, F. Amat, J. Navarro

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引用次数: 1

摘要

本研究的目的是通过评估包囊和无节幼体的生物学特性、孵化参数和脂肪酸谱，确定三个卤虫种群的营养价值，其中一个来自Bethioua Sebkha（Oran），另一个来自El Melah（Bechar）和Timimoune（Adrar）的两个新生物位。这些信息与水产养殖倡议相关，填补了阿尔及利亚以往研究的知识空白。无节幼体的大小在453.26±0.3µm和478.73±0.2µm之间。绒毛膜厚度在13.28µm到10.50µm之间。白蜡虫包囊去壳后孵化率和孵化效率最高。Bethioua囊肿的孵化同步时间也最短。本研究中分析的Bethioua群体的所有囊肿样本均显示出富含亚麻酸的淡水型脂肪酸特征（LNA，18:3n.3），而富含二十碳五烯酸的海洋型脂肪酸（EPA，20:5n-3）。Bethioua种群表现出最佳的孵化性能，非常适合用于水产养殖。

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Quality evaluation of Artemia cysts from three Algerian populations

The aim of this study was to determine the nutritional value of three populations of Artemia, one from the Bethioua Sebkha (Oran) and two new biotopes at El Melah (Bechar) and Timimoune (Adrar), by evaluating the cyst and nauplius biometry, hatching parameters and fatty acid profiles. This information is of relevance to aquaculture initiatives, and fills in knowledge gaps from previous research at Algerian sites. The size of nauplii varied from 453.26 ± 0.3 µm and 478.73 ± 0.2 µm. The chorion thickness was between 13.28 µm and 10.50 µm. The highest hatching percentage and hatching efficiency were obtained after decapsulation of Bethioua cysts. The shortest hatching synchrony time was also found for the Bethioua cysts. All cyst samples from the the Bethioua population analysed in this study showed a freshwater-type fatty acid profile, rich in linolenic acid (LNA, 18:3n.3), opposed to a marine-type fatty acid profile rich in presence of eicosapentaenoic acid (EPA, 20:5n-3). The Bethioua population exhibited the best hatching performance and are ideally suited for use in aquaculture.

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来源期刊

African Journal of Aquatic Science MARINE & FRESHWATER BIOLOGY-

CiteScore

3.90

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： The African Journal of Aquatic Science is an international journal devoted to the study of the aquatic sciences, covering all African inland and estuarine waters. The Journal publishes peer-reviewed original scientific papers and short articles in all the aquatic science fields including limnology, hydrobiology, ecology, conservation, biomonitoring, management, water quality, ecotoxicology, biological interactions, physical properties and human impacts on African aquatic systems.