首页> 外文OA文献 >Survey on parasites of Rutilus frisii Kutum in South west of Caspian Sea with the emphasis of pathology of Dactylogyrus frisii and morphological identification of Paradiplozoon sp and Anisakis sp
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Survey on parasites of Rutilus frisii Kutum in South west of Caspian Sea with the emphasis of pathology of Dactylogyrus frisii and morphological identification of Paradiplozoon sp and Anisakis sp

机译:以里氏乳杆菌的病理学为重点,对伞形双孢菌和Anisakis sp的形态鉴定调查里海西南部的Rutilus frisii Kutum寄生虫

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摘要

Rutilus frisii Kutum is one of the most precious fish in the Caspian Sea. Investigation of the various aspects of its biocharactristics. Including its parasite fauna and ecological aspects are of prime importance. In this study the farmed kutum fry were on the focus of investigation in various seasons of the year and prior to their being released in the sea. This included also the study on the kutum spawners caught both from liver and the sea. The results were that 17 external and internal parasite species were distinct within different organs which were further identified down to genus and species. The single celled parasites identified included Ichthyophthirius multifilils, Chilodonella hexastica, Chilodonella pisicola, Trichodina sp Along with the monogene parasites that included Paradiplozoon chazaricum, D. rarissimus, D. turaliensis, D. nybelini, Dactylogyrus frisii. Meanwhile Diplostomum spathaceum constituted the single eyed parasites and the intestinal termatode were Aspidogaster limacoides, Asymphyoldora kubanicum as well as Bothriocephalus gowkongeniss as the sestads. The nematodes defrentiated were Raphidascaris acus, Dioctophyma renale, and Eustrongylides excisus followed by Lernaea cyprinacea as a crustacean. In this study, infestations by single celled parasites, crustaceans and sestod were found to be present only among the farmed kutum fry which varied in terms of percentage and intensity of infection as well as the parasite species and season of the year. The highest percentage of infection among kutum fry and spawners in both fresh water and in the sea during all seasons belonged to monogene parasites (33%). This was up to 100% among spawners. Infection caused by nematodes was exclusively detected among riverine spawners (7.5-5%) and the infection by Asymphyoldora kubanicum and Aspidogaster limacoides among Spawners caught at Sea and rivers varied within different seasons of the year. The infestation of Metacercer diplostomum spathaceum among kutum fry was 12% which compared to spawners was in slightly higher level. The study could identify Dioctophyma renale for the first time in the country and Eustrongylidis excisu was also detected among Rutilus frisii kutum.
机译:Rutilus frisii Kutum是里海最珍贵的鱼类之一。研究其生物特征的各个方面。包括其寄生虫的动物区系和生态方面至关重要。在这项研究中,养殖的库图姆鱼苗是一年中各个季节以及在被释放到海中之前的调查重点。这还包括对从肝脏和海洋中捕获的库图姆产卵器的研究。结果是,在不同器官中有17种外部和内部寄生虫物种是不同的,这些器官进一步被鉴定为属和物种。鉴定出的单细胞寄生虫包括鱼鳞衣藻,六齿奇多氏菌,皮氏奇异菌,Trichodina sp,以及包括paradiplozoon chazaricum,D。rarissimus,D。turaliensis,D。nybelini,Dactylogyrus frisii的单基因寄生虫。同时,双节肢动物构成了单眼寄生虫,肠上的十二足类动物为小蜘蛛蚜虫(Aspidoster limacoides),白喉Asymphyoldora kubanicum以及雌雄蛾Berriocephalus gowkongeniss。无线虫的线虫是Raphidascaris acus,Dioctophyma肾和Eustrongylides exisus,其次是作为甲壳纲的鲤鱼Lernaea cyprinacea。在这项研究中,发现单细胞寄生虫,甲壳类动物和种马的侵染仅存在于养殖的库图姆鱼苗中,其感染率和强度以及寄生虫种类和一年中的季节有所不同。在所有季节中,淡水和海中在库图姆鱼苗和产卵者中感染率最高的是单基因寄生虫(33%)。在产卵者中这一比例高达100%。仅在河流产卵者中检出了由线虫引起的感染(7.5-5%),在海上和河流中捕捞的虾笼中的枯萎病菌(Asymphyoldora kubanicum)和纤毛虫(Aspidogaster limacoides)感染在一年中的不同季节有所不同。昆腾鱼中介角虫的侵染率为12%,与产卵者相比略高。该研究可首次在该国鉴定出肾脏双歧杆菌,并且在Rutilus frisii kutum中也发现了Eustrongylidis excisu。

著录项

  • 作者

    Rahanandeh Mohammad;

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  • 年度 2010
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  • 原文格式 PDF
  • 正文语种 fa
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