Khames Ghollame Ellah Yacine, Kherchouche Aldjia, Alioua Zakia, Hafferssas Aziz
University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences- Laboratory of Biological Oceanography and the Marine Environment-Pelagic Ecosystem Team. BP 32, El Alia, Bab-Ezzouar, Algiers, Algeria University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences- Laboratory of Biological Oceanography and the Marine Environment-Pelagic Ecosystem Team. BP 32, El Alia, Bab-Ezzouar Algiers Algeria.
University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences- Laboratory of Biological Oceanography and the Marine Environment-Fisheries Team. BP 32, El Alia, Bab-Ezzouar, Algiers, Algeria University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences- Laboratory of Biological Oceanography and the Marine Environment-Fisheries Team. BP 32, El Alia, Bab-Ezzouar Algiers Algeria.
Biodivers Data J. 2023 May 16;11:e101790. doi: 10.3897/BDJ.11.e101790. eCollection 2023.
This study aims to investigate the distribution of gelatinous zooplankton in relation to environmental parameters along the coastal regions of Algeria in the south-western Mediterranean Sea. A total of 48 species were recorded from nine sampling stations located in the central (Sidi Fredj) and western (Habibas Islands) sectors of the Algerian coast. The results showed that the seasonal distribution of gelatinous species exhibits significant variations. Amongst cnidarians, , and are the most abundant species. Chaetognaths are primarily represented by and . Tunicates display high diversity, with , and as the most abundant species. Lastly, in molluscs, and are the most abundant species. The nMDS and ANOSIM analysis reveal significant differences in the ecological community structures between the Habibas Islands and Sidi Fredj. Redundancy analysis results show relationships between different marine species and environmental variables, such as temperature, chlorophyll a and salinity. The studied species exhibit positive or negative correlations with these variables, suggesting an influence of these factors on their abundance and distribution. This study enhances our understanding of the factors that govern the distribution and dispersal of gelatinous zooplankton in the Mediterranean Sea and has significant implications for predicting changes in the distribution of these species under future environmental scenarios.
本研究旨在调查地中海西南部阿尔及利亚沿海地区与环境参数相关的凝胶状浮游生物的分布情况。在阿尔及利亚海岸中部（西迪弗雷吉）和西部（哈比巴斯群岛）的9个采样站共记录到48个物种。结果表明，凝胶状物种的季节分布呈现出显著差异。在刺胞动物中， 、 和 是最丰富的物种。毛颚动物主要由 和 代表。被囊动物表现出高度的多样性， 、 和 是最丰富的物种。最后，在软体动物中， 和 是最丰富的物种。非度量多维标度分析（nMDS）和相似性分析（ANOSIM）揭示了哈比巴斯群岛和西迪弗雷吉之间生态群落结构的显著差异。冗余分析结果显示了不同海洋物种与环境变量之间的关系，如温度、叶绿素a和盐度。所研究的物种与这些变量呈现正相关或负相关，表明这些因素对它们的丰度和分布有影响。本研究增进了我们对控制地中海凝胶状浮游生物分布和扩散因素的理解，并对预测这些物种在未来环境情景下分布的变化具有重要意义。
