Nehemia Alex, Mwakalesi Alinanuswe J
Department of Biosciences, College of Natural and Applied Sciences, Sokoine University of Agriculture, P. O. Box 3038, Morogoro, Tanzania.
Department of Chemistry and Physics, College of Natural and Applied Sciences, Sokoine University of Agriculture, P. O. Box 3038, Morogoro, Tanzania.
Heliyon. 2024 Oct 9;10(20):e39051. doi: 10.1016/j.heliyon.2024.e39051. eCollection 2024 Oct 30.
The Lake Salmon, is an economically important fish along the Lake Nyasa. However, the species is under threat of extinction due to anthropogenic activities such as agriculture, mining, urbanization, and deforestation. Consequently, the fish species is currently regarded as a threatened species, and the International Union for Conservation of Nature (IUCN) has red-listed the species due to an apparent decline in abundance. The current study assesses the potential impact of human activities on the genetic diversity of . using partial mitochondrial cytochrome oxidase subunit I (COI) sequences and microsatellite loci. The results indicate that genetic diversity is lower in the areas affected by human activities compared to relatively pristine areas. The results from this study may suggest that human activities taking place in the catchments are likely to contribute to the alteration of the genetic diversity of . species. Thus, immediate measure is required to control anthropogenic activities in the areas to protect the species and other aquatic organisms from possible threats of extinction.
湖鲑是马拉维湖沿岸具有重要经济价值的鱼类。然而,由于农业、采矿、城市化和森林砍伐等人为活动,该物种正面临灭绝威胁。因此,这种鱼类目前被视为受威胁物种,由于其数量明显减少,国际自然保护联盟(IUCN)已将该物种列入红色名录。本研究利用部分线粒体细胞色素氧化酶亚基I(COI)序列和微卫星位点,评估人类活动对湖鲑遗传多样性的潜在影响。结果表明,与相对原始的地区相比,受人类活动影响地区的遗传多样性较低。本研究结果可能表明,集水区内发生的人类活动可能导致湖鲑物种遗传多样性的改变。因此,需要立即采取措施控制这些地区的人为活动,以保护该物种和其他水生生物免受可能的灭绝威胁。