巴西半干旱地区流域间调水前后间歇性河流鱼类寄生虫丰富度和丰度的驱动因素

IF 1.8 3区 医学 Q2 PARASITOLOGY Parasitology Research Pub Date : 2024-09-19 DOI:10.1007/s00436-024-08332-9
Julia Martini Falkenberg, Vitória Maria Moreira de Lima, Telton Pedro Anselmo Ramos, Ana Carolina Figueiredo Lacerda
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引用次数: 0

摘要

本研究考察了塞阿拉州贾瓜里贝河流域的鱼类在接受巴西东北部圣弗朗西斯科河水前后的大型寄生虫群落指标。这项研究评估了环境因素(水体参数)和 30 种鱼类的特征与寄生虫丰富度和丰度在空间(河道)和时间(季节、转移前后)上的关联。广义线性模型揭示了寄生虫指标与宿主特征、水体参数和河流子流域之间的关系。宿主的大小和身体状况与寄生虫的丰富度和丰度呈正相关,而繁殖期则呈负相关。水质对外寄生虫和内寄生虫的影响各不相同,存在季节和流域差异以及流域之间的差异。一般模型还表明,时期是一个重要变量,在过渡后时期,寄生虫的丰富度降低,而数量增加。这项研究强调了在了解河流生态系统中寄生虫动态时考虑各种环境和宿主变量的重要性。这些发现可为生态系统管理和保护提供有价值的见解,阐明环境变化对寄生虫-宿主相互作用和生态系统健康的潜在影响。
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Drivers of richness and abundance of parasites of fishes from an intermittent river before and after an interbasin water transfer in the Brazilian semi-arid region

This study examined the metrics of the macroparasite community in fishes from the Jaguaribe River basin, state of Ceará, before and after receiving water from the São Francisco River in Northeastern Brazil. This research assessed the association of environmental factors (water parameters) and the traits of 30 fish species on the parasite richness and abundance across space (river course) and time (seasons, pre- and post-transposition periods). Generalized linear models reveal associations between parasite metrics and host traits, water parameters, and river sub-basin. Host size and body condition positively correlated with parasite richness and abundance, while reproductive phase was negatively related. Water quality impacted ecto- and endoparasites differently, with seasonal and sub-basins variations and differences among sub-basins. The general models also indicate that the period is a significant variable, where parasite richness decreases while abundance increases in the post-transposition period. This study underscores the importance of considering diverse environmental and host variables for understanding parasite dynamics in river ecosystems. These findings could lead to valuable insights for ecosystem management and conservation, elucidating the potential consequences of environmental alterations on parasite-host interactions and ecosystem health.

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来源期刊
Parasitology Research
Parasitology Research 医学-寄生虫学
CiteScore
4.10
自引率
5.00%
发文量
346
审稿时长
6 months
期刊介绍: The journal Parasitology Research covers the latest developments in parasitology across a variety of disciplines, including biology, medicine and veterinary medicine. Among many topics discussed are chemotherapy and control of parasitic disease, and the relationship of host and parasite. Other coverage includes: Protozoology, Helminthology, Entomology; Morphology (incl. Pathomorphology, Ultrastructure); Biochemistry, Physiology including Pathophysiology; Parasite-Host-Relationships including Immunology and Host Specificity; life history, ecology and epidemiology; and Diagnosis, Chemotherapy and Control of Parasitic Diseases.
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