Sahreen Anam, Saifullah Mohammad Khalid
Section of Parasitology, Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh 202002 India.
J Parasit Dis. 2024 Sep;48(3):642-653. doi: 10.1007/s12639-024-01702-1. Epub 2024 Jul 6.
Fisheries and aquaculture are crucial for ensuring food security and are significant sources of income and social advancement in developing nations. Parasitic infections among fish in natural and artificial culture systems are detrimental to their health and growth. Epidemiological studies are a prerequisite to understanding the dynamics of the disease in a fish population. In the present study, we have evaluated the prevalence and seasonal variation of the digenetic trematode parasite infecting the catfish from the Aligarh region of Uttar Pradesh. To perform epidemiological studies, regular sampling of fish was carried out from March 2018 to February 2023. A total of 1110 fish were examined, of which 293 were infected with The total number of parasites recovered from the fish host was 1297 and the prevalence and mean intensity were 26.39% and 4.42, respectively. The highest prevalence of infection, with a value of 34.94%, was observed during the winter season, while the summer season exhibited the lowest prevalence of 12.78%. The findings suggest that the prevalence of the parasite is highest during the late monsoon to early winter months and lowest during the summer to early monsoon months. This variation in prevalence may be attributed to environmental conditions, particularly temperature fluctuations. The necessity to assess parasite infection arises because parasitic infection or sickness in fish causes significant damage to the fishing industry, and as a consequence, livelihoods in poor or developing countries are affected.
渔业和水产养殖对于确保粮食安全至关重要，并且是发展中国家重要的收入来源和社会进步的源泉。自然和人工养殖系统中的鱼类寄生虫感染对其健康和生长有害。流行病学研究是了解鱼类种群中疾病动态的先决条件。在本研究中，我们评估了感染北方邦阿里格尔地区鲶鱼的复殖吸虫寄生虫的流行情况和季节变化。为了进行流行病学研究，于2018年3月至2023年2月对鱼类进行定期采样。共检查了1110条鱼，其中293条感染了 从鱼宿主中回收的寄生虫总数为1297条，流行率和平均强度分别为26.39%和4.42。在冬季观察到最高感染率，为34.94%，而夏季感染率最低，为12.78%。研究结果表明，寄生虫的流行率在季风后期至初冬月份最高，在夏季至季风早期月份最低。这种流行率的变化可能归因于环境条件，特别是温度波动。评估寄生虫感染的必要性在于，鱼类的寄生虫感染或疾病会对渔业造成重大损害，因此，贫穷或发展中国家的生计会受到影响。
