Life-history studies on infrapopulations of Mazocraes alosae (Monogenea) parasitising Alosa immaculata (Actinopterygii) in the northern Black and Azov Seas.

IF 1.5 4区 医学 Q3 PARASITOLOGY
Mariana P Plaksina, David I Gibson, Evgenija V Dmitrieva
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引用次数: 0

Abstract

The life-history of Mazocraes alosae Hermann, 1782 on one of its hosts, the Pontic shad Alosa immaculata Bennett, is described for the first time. This anadromous fish, which occurs off the coast of the Crimea and migrates from the Black Sea to the Sea of Azov and into the River Don for spawning, was studied throughout its migration and during all seasons. It is demonstrated that the period of reproduction of this monogenean is significantly longer than that reported for the population in the Caspian Sea, lasting from April to November with a peak in April-May, and continues both in the sea and the river. Experiments showed that water salinity does not limit the development of the eggs or the hatching of the oncomiracidia. Our data reveal that the abundance of M. alosae is not determined by the size or sex of mature fish and that shad of less than two years old can also be infected with this monogenean, although less frequently than older fish. The direction of the migration of A. immaculata, either from the Black Sea to the Sea of Azov and into the rivers or in the opposite direction, does not influence the number of monogeneans present on the host. The main factor affecting the dynamics of the abundance of this monogenean is season, and, as has been indicated previously in the Caspian Sea basin, there is a synchronisation between the parasite's life-history and both the host's spawning behaviour and the duration of its migration.

黑海北部和亚速海地区寄生无斑阿洛萨(Actinopterygii)的单属阿洛萨(Mazocraes)生活史研究。
1782年,在它的宿主之一蓬蒂沙鱼(Pontic shahad Alosa immaculata Bennett)上,首次描述了Mazocraes alosae Hermann的生活史。这种溯河鱼类出现在克里米亚海岸附近,从黑海迁徙到亚速海,然后进入顿河产卵,研究人员在整个迁徙过程中以及所有季节都对其进行了研究。结果表明,这种单系物种的繁殖周期明显长于里海种群的繁殖周期,从4月持续到11月,4 - 5月达到高峰,并且在海中和河中都持续存在。实验表明,水的盐度不限制卵的发育或卵的孵化。我们的数据显示,M. alosae的丰度不是由成熟鱼的大小或性别决定的,不到两岁的鱼也可以感染这种单基因,尽管比老鱼少。A. immaculata的迁徙方向,无论是从黑海到亚速海并进入河流,还是相反的方向,都不会影响宿主上存在的单系菌的数量。影响这种单基因生物丰度动态的主要因素是季节,而且,正如先前在里海盆地所表明的那样,寄生虫的生活史与宿主的产卵行为和迁徙时间之间存在同步。
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来源期刊
Folia Parasitologica
Folia Parasitologica 医学-寄生虫学
CiteScore
2.70
自引率
0.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: FOLIA PARASITOLOGICA, issued in online versions, is an international journal that covers the whole field of general, systematic, ecological and experimental parasitology. It publishes original research papers, research notes and review articles. Contributions from all branches of animal parasitology, such as morphology, taxonomy, biology, biochemistry, physiology, immunology, molecular biology and evolution of parasites, and host-parasite relationships, are eligible. Novelty and importance in the international (not local or regional) context are required. New geographical records of parasites, records of new hosts, regional parasite and/or host surveys (if they constitute the principal substance of manuscript), local/regional prevalence surveys of diseases, local/regional studies on epidemiology of well known diseases and of parasite impact on human/animal health, case reports, routine clinical studies and testing of established diagnostic or treatment procedures, will not be considered. One species description will also not be considered unless they include more general information, such as new diagnostic characters, host-parasite associations, phylogenetic implications, etc. Manuscripts found suitable on submission will be reviewed by at least two reviewers.
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