نتایج جستجو برای: acanthocephala
تعداد نتایج: 497 فیلتر نتایج به سال:
The present work described helminth parasites of curimbatá, Prochilodus lineatus Valenciennes, 1836 from Volta Grande Reservoir, MG, Brazil. Eighteen fishes with average 46.7 +/- 1.1 cm length and 1,674.8 +/- 75.6 g weight were collected. Of the analysed fishes, 15 were parasitized with acanthocephalans in the intestine, showing a prevalence of 83.3%. The helminth was identified as Neoechinorhy...
The paper presents the results of works on preparation of a proper museum collection of parasitic helminths gathered by the Polish scientists and dispersed in various scientific institutions. The collection composed of 11 author's collections and a special collection of available typical series of species described by the Polish authors has been deposited in the Museum of Natural History of Wro...
Acanthocephala is a minor phylum of dioecious worms (Helminths) which is often overlooked in beginning biology and parasitology courses [1]. Hooks are a major characteristic of all known species, thus they have been referred to as thorny headed or spiny headed worms. An evertable (protrudible) proboscis is armed with the hooks which provide permanent attachment to the host intestine. Over 1150 ...
In an aquatic environment, there is a profound and inverse relationship between environment quality and disease status of fish. Parasites are one of the most serious limiting factors in aquaculture. Therefore, the present investigation has been undertaken to sort out the population dynamics of Pallisentis (Acanthocephala), in relation to host sex from freshwater fishes, Channa of Rohilkhand reg...
The family Coreidae is composed of some the larger terrestrial Heteroptera, with showy colors and expansions on legs, antenna or pronotum. Among Neotropical fauna, tribe Acanthocephalini Stål, including 18 genera, recognized by strongly deflexed juga, conspicuously projecting tylus. In same work in which Stål established tribe, he described two new subgenera to genus Acanthocephala Laporte (cur...
Four major areas of the urogenital system of Echinopardalis atrata are examined: (1) capsular protonephridial system, (2) uterine bell complex, (3) uterus, (4) vagina. Photomicrographs of cross sections from wax preparations depict morphological changes along the length of this system. Diagrammatic illustrations show relationships between excretory ducts and oviducts in the uterine bell complex...
The aim of this study was to investigate the post-cyclic transmission of Acanthocephalus tumescens (von Linstow, 1896) from Galaxias maculatus Jenyns to Oncorhynchus mykiss (Walbaum). Wild G. maculatus naturally infected with A. tumescens were fed to cultured rainbow trout, which were sacrificed at the second, third and fourth weeks post infection. Normally attached male and female acanthocepha...
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