Cercariae of the genus Trichobilharzia can penetrate not only the skin of definitive hosts (ducks), but they are also able to penetrate the skin of accidental hosts (mammals). As a result of the penetration, the inflammatory response known as cercarial dermatitis appears. The goal of our thesis is to detect parasite DNA in the serum and cerebrospinal fluid of infected ducks, and also in the serum of infected mice. By using PCR with primers designed for a tandem repeated sequence, we were able to detect 1 femtograms of parasite DNA isolated from sera of infected ducks. We were able to amplify parasite DNA only from 16 samples of sera and cerebrospinal fluid of the infected ducks, but we were not able to do so with the serum of mice. Sera of infected mice were also tested by ELISA and Western blot. The homogenates of T. regenti (TRhc), T. szidati (TShc) and S. mansoni (SMhc) cercariae were selected as an antigen. The results showed progressive increase in the level of IgM antibody from 10 days after 1st infection and also increase of the level of IgG from the 2nd infection. 10 days after the 4th infection, the level of IgM and IgG gradually declined, but the level of antibodies 100 days after the 4th infection was still higher if compared to uninfected mice. Results from Western blot analysis...

Four new species of Hurleytrematoides Y amaguti, 1954 are described: H. fl}iensis from Heniochus acuminatus pnd Chaetodon citrinellus, H. prevoti from Chaetodon melannotus; H bartolii from Heniochus acuminatus and H monoceros, and H. zebrasomae from Zebrasoma scopas. The hurleytrematine genera Hurleytrema, Hurleytrematoides, Pseudohurleytrema and Parahurleytrema are briefly discussed and their validity accepted based chiefly on the structure of the male and female terminal structures. Hurleytrema pyriforme Overstreet, 1969 and H. catarinensis Amato, 1982 are transferred to Pseudohur/eytrema as new combinations. The generic diagnosis of Hurleytrematoides is emended to include cirrus with large and extensive spines or small ones with limited distribution, and a spiny or aspinose unipartite terminal organ. A key to the hurleytrematine genera with single testis and their species is given. A parasite-host list of all monorchiid species reported to date is included.

To date there has been only on major study concerned with parasites of freshwater fishes of California. E. C. Haderlie (1953) summarized investigations up to that year and conducted a general survey of the monogenetic and digenetic trematodes, cestodes, nematodes, acanthocephalans, copepods, and hirudinians of fishes of Northern California. From 2010 fishes representing 36 species of 11 families examined over a three-year period, he obtained a total of 59 species of helminth parasites, copepods, and hirudinians, which include 20 species of digenea and 16 species of cestodes. In addition to the taxonomic study, Haderlie attempted to correlate the relative occurrence of the parasites with various ecological habitats. These data are incomplete, except for a general ecological discussion of the parasites taken from Clear Lake and its contributing streams. In the Sacramento-San Joaquin area the monogenetic trematodes are the only group that has been extensively studied. This work has been done by Dr. J. D. Mizelle of Sacramento State College. The primary purpose of the current investigation is to gain some knowledge of the species of endoparasites of fishes of the San Joaquin Delta. Two hundred and thirty sic fish were examined, including diadromous, potamodramous, anandromous, and territorial species of San Joaquin Delta. This has resulted in the recovery of two previously described and one new adult digenea, three metacercariae, two adult and three larval cestodes,and two cestodarians. Not included in this study are the Acanthocephala and Nematoda. A few cestodes are also not included because of their poor condition. The Host-Parasite List (p. 49) of this paper gives a summary of the fishes examined by Haderlie (H) and the present author (E) with the number of each species examined and the species of trematodes and cestodes recovered.

The primary purpose of this compilation is to facilitate for pertinent literature in the searches involving digenetic trematodes from fines. The index may be used by the investigator to determine what, Af any, 14torature has appeared concerning the animal or group of animals with which he is working; and the literature is cross-indexed in such a way that it may be approached from the various angles commonly used in trematodes investigations. There are included, for example, an index to hosts, an index to larval stages of development and a partial geographic index to adult trematodes of fishes.

This report summarizes the results of a study on the life cycle of a member of the trematode family Acanthooolpidae, genus Stephanostomum Looss, 1899, which was carried on during the summers of 1948, 1949, 1951, and the winter of 1948-49 at the Marine Station of the College or the Pacific at Dillon Beach, California. Only one previous experimental work has been done on the life cycle of any member of this family. Martin (1939) reported the life cycle of Stephanostomum tenue (Linton) which he had obtained at Woods Hole, Massachusetts. Modifications of his technical procedures have been used in this study. It is hoped that this endeavor will further facilitate investigations in life cycle studies. The results obtained may be of economic value because the adult members of the family are parasitic in marine fishes, many of which are of commercial importance.

Very little is known of the development, life history, economic importance, of biological relationships of larval trematodes, especially in their molluscan and arthropod hosts on the Pacfic Coast. The comparatively few contributions to our knowledge have been from scattered and fragmentary observations. The purpose of this study was to expand our knowledge and to lay a foundation for further work on trematode life cycles in marine organisms. The area selected for special investigation was Nick's Cove, Tomales Bay, California.

A survey of the trematode parasites of marine fishes of Tomales and Bodega Bays, California, was instituted In the Spring of 1948. Many adult forms were obtained, but the search progressively narrowed Itself to a study of the larval trematodss of an area of Tomales Bay, known, as Nick's Cove. Here an interesting cystophorous cercaria was discovered in the littoral snail, Thais emarglnata.

The present paper deals solely with parasites of marine fishes of the family Enbiotocidae represented in the American Pacific according to Special Publications no. 2, American Fisheries Society, 1960, by 20 species, all of which are marine except the Tule perch, Hysterocarpus traski (Gibbons) from fresh water. In Tomales and Bodega Bays 174 fishes representing 9 embiotocid species were examined and found to harbor 6 species of digenetic trem todes, including one here in described as new.

<p>Analizirana je helmintofauna 127 primeraka slepih mi&scaron;eva na teritoriji Srbije.<br />Sakupljene jedinke su pripadnici 12 vrsta slepih mi&scaron;eva: veliki potkovičar (<em>Rhinolophusferrumequinum </em>Schreber, 1774); tamnoliki brkati večernjak <em>(Myotis mystacinus </em>Kuhl, 1817); mali brkati večernjak (<em>M. alcathoe </em>Helversen &amp; Heller, 2001); &scaron;umski brkati večernjak (<em>M. brandtii&nbsp; </em>Eversmann, 1845); južni veliki večernjak <em>(M</em>. <em>oxygnathus </em>Monticelli, 1885); evropski veliki večernjak (<em>M. myotis </em>Borkhausen, 1797); dugodlaki slepi mi&scaron;ić(<em>Hypsugo savii </em>Bonaparte, 1837); obični slepi mi&scaron;ić(<em>Pipistrellus pipistrellus</em> Schreber, 1774); &scaron;umski slepi mi&scaron;ić (<em>P. nathusii </em>Keyserling &amp; Blasius, 1839); evropski smeđi dugou&scaron;an (<em>Plecotus auritus </em>Linnaeus, 1758); evropski sivi dugou&scaron;an <em>(P.</em> <em>austriacus </em>Fischer, 1829) i obični noćnik (<em>Nyctalus noctula</em> Schreber, 1774). Jedinke slepih mi&scaron;eva su sakupljane sa 15 lokaliteta na teritoriji Srbije: Deliblatska pe&scaron;čara, Zasavica, Valjevo, Beograd, Paraćin, Đerdap, Bor, Beljanica, Kučevo, Boljevac, Zaječar, Zlot, Medveđa, planina Tara i Ivanjica u periodu od 2001. do 2009 godine.Izolovano je ukupno 1642 jedinki parazita (787 jedinki metilja, 4 pantljičara i 851 nematoda), razvrstanih u 2 razdela, 1 podrazdel, 3 klase, 3 podklase, 1 nadred, 6 reda, 1 podred, 7 nadfamilija, 11 familija, 9 podfamilija, 12 rodova i 14 vrsta. Identifikovane vrste parazita su:&nbsp;<em> Plagiorchis koreanus</em>(Ogata, 1937),&nbsp;<em>Mesotretes peregrinus </em>(Braun, 1900),&nbsp;<em>Lecithodendrium linstowi </em>(Dollfus, 1931),&nbsp;<em>Prosthodendrium longiforme</em> (Bhalerao, 1926),&nbsp;<em>P. chilostomum </em>(Mehlis, 1831),&nbsp;<em> P. parvouterus </em>(Bhalerao, 1926), <em>Milina grisea</em>(van Beneden, 1873),&nbsp;<em>Capillaria neopulchra </em>(Babos, 1954), <em>Molinostrongylus alatus</em>(Ortlepp, 1932),&nbsp;<em>Strongylacantha glycirrhiza&nbsp; </em>(van Beneden, 1873),&nbsp;<em>Physalopterasp</em>.,&nbsp;<em>Litomosa ottavianii&nbsp;</em>(Lagrange &amp; Bettini, 1948),&nbsp;<em>Rictularia bovieri&nbsp;</em>(Blanchard, 1886) i&nbsp;<em>Seuratum mucronatum </em>(Rudolphi, 1809). Kvalitativna i kvantitativna analiza helmintofaune slepih mi&scaron;eva je prvi put rađena na području Srbije, te se date vrste domaćina mogu smatrati novim za sve konstatovane vrste parazita na teritoriji na&scaron;e zemlje. U ukupnom uzorku 93 (73.23%) jedinki domaćina bilo je invadirano parazitima. Najbrojnije u ukupnom uzorkusu bile vrste&nbsp; P. koreanus,<em>&nbsp;L. linstowii&nbsp; M. alatus</em>, sa dominacijom poslednje. Konstatovano je da pol&nbsp; ne utiče na sastav helmintofaune domaćina. Međutim, konstatovane su promene u kvalitetu i kvantitetu helmintocenoze u pojedinim sezonama.</p> / <p>The helminth fauna of 127 individuals of bats on the territory of Serbia was analyzed. The host samples consisted of 12 bat species: Greater Horseshoe Bat(Rhinolophus &nbsp; ferrumequinumSchreber, 1774); Whiskered Bat (Myotis&nbsp; mystacinusKuhl, 1817); Alcathoe Whiskered Bat (M. alcathoeHelversen &amp; Heller, 2001); Brandt &rsquo;s Bat (M. brandtiiEversmann, 1845); Lesser Mouse-eared Bat (M. oxygnathusMonticelli, 1885); Greater Mouse-eared Bat (M. myotisBorkhausen, 1797); Savi &rsquo; s Pipistrelle Bat (Hypsugo saviiBonaparte, 1837); Common Pipistrelle Bat (Pipistrellus pipistrellus Schreber, 1774); Nathusius &rsquo; Pipistrelle Bat (P.&nbsp; BathusiiKeyserling &amp; Blasius, 1839); Brown Long-eared Bat (Plecotus auritusLinnaeus, 1758); Grey Long-eared Bat (P. austriacusFischer, 1829) and Noctule Bat (Nyctalus noctulaSchreber, 1774). Host semples were collected from fifteen localities throughout Serbia: Deliblato sands, Zasavica, Valjevo, Belgrade, Paraćin,&nbsp; Đerdap, Bor, Beljanica, Kučevo, Boljevac, Zaječar, Zlot, Medveđa, Tara mountain and Ivanjica in the period between2001 and 2009. A total of 1642 helminth individuals (787 individuals of digeneans, 4 cestodes and 851 nematodes) were collected from the hosts, classified into 2 phylas, 1 subphyla, 3 classes, 3 subclasses, 1 superorder, 6 orders, 1 suborder, 7 superfamilies, 11 families, 9 subfamilies, 12 generas and 14 species. Fourteen parasite species were identified: Plagiorchis koreanus(Ogata, 1937),&nbsp; Mesotretes peregrinus(Braun, 1900), Lecithodendrium linstowi(Dollfus, 1931),&nbsp; Prosthodendrium&nbsp; longiforme(Bhalerao, 1926), P. chilostomum(Mehlis, 1831),&nbsp; P. parvouterus(Bhalerao, 1926),&nbsp; Milina grisea (van Beneden, 1873),&nbsp; Capillaria neopulchra(Babos, 1954),&nbsp; Molinostrongylus alatus (Ortlepp, 1932),&nbsp; Strongylacantha glycirrhiza(van Beneden, 1873),&nbsp; Physalopterasp., Litomosa ottavianii(Lagrange &amp; Bettini, 1948),&nbsp; Rictularia bovieri(Blanchard, 1886)&nbsp; and&nbsp; Seuratum mucronatum(Rudolphi, 1809). The qualitative and&nbsp; quantitativeanalysis of the helminth fauna of bats were conducted in Serbia for the first time. Therefore all bat species can be considered new hosts for all recorded helminth species on the area of the country. Ninety-three (73.23%)&nbsp; individuals werefound to be infected with helminth parasites. The most numerous helminth species in total sample were&nbsp; P. koreanus,&nbsp; L. linstowiand&nbsp; M. alatus, which is also the most dominant. There is no evidence that the composition of helminth&nbsp; fauna depends on the sex ofthe host. However, some seasonal changes in quality and quantity of helminth community of the host are obvious.&nbsp;</p>

Thesis (M.Sc.) - University of the North, 1977 / Refer to document