Abstract：
:Seven species of fishes, Catostomus commersonii (Lacépède), Etheostoma nigrum Rafinesque, Micropterus dolomieu Lacépède, Notemigonus crysoleucas (Mitchill), Notropis hudsonius (Clinton), Perca flavescens (Mitchill), and Percina caprodes (Rafinesque) from the St. Lawrence River, Quebec, Canada, were found infected with progenetic specimens of Neochasmus spp. in the orbits and/or the body musculature. Worms displayed varying degrees of maturation. Eggs occupied the entirety of the worm in late stages of development and persisted as distinct clusters in situ after worm death. Populations of parasites were studied monthly in E. nigrum from one site between May and October in order to follow parasite recruitment, development and maturation. Recruitment of parasites was observed in young-of-the-year fish primarily in July and continued through October. Worms matured rapidly, displaying egg production within a month. Later developmental stages, in which eggs occupied most of the worm, and clusters of eggs became abundant by September. Infections in overwintered fish collected in May consisted mainly of worms in early stages of egg production and of clusters of eggs. When hatched artificially, eggs from the clusters released viable miracidia, indicating that they survive beyond the lifespan of the adult worm. It is suggested that progenesis is a fixed characteristic of the life cycle of these species, that egg dispersal requires the death of the host and that it is facilitated by predation. All prior records of Neochasmus spp. are examined, leading us to conclude that the role of the putative definitive host (primarily basses) has been reduced to that of a dispersal agent. Current hypotheses concerning the evolution and maintenance of progenesis are considered, but it is concluded that they do not apply to this host-parasite system.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
McLaughlin JD,Marcogliese DJ,Kelly Jdoi
10.14411/fp.2006.003subject
Has Abstractpub_date
2006-03-01 00:00:00pages
44-52issue
1eissn
0015-5683issn
1803-6465journal_volume
53pub_type
杂志文章abstract：:Malate dehydrogenase (EC 1.1.1.37.) (MDH) was purified to apparent homogeneity from the cytosolic fraction of the protozoan Trichomonas vaginalis Donné. The four step purification included ion-exchange chromatography (DEAE-Sephacel and Q-Sepharose, elution with NaCl) and affinity chromatography (Reactive Red Agarose, ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Three foxes about 18 weeks old were each subcutaneously inoculated with approximately 200 LD50 dose of extraneurally passaged strain of the Tahyna virus "236". Viremia was demonstrated in all animals during the 48-96 hours interval after infection. The maximum value was 1.31 dex LD50/0.02 ml. Three weeks after infecti...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:Ascaridoid nematodes referable to Brevimulticaecum heterotis (Petter, Vassiliadès et Marchand, 1979) Khalil, 1984 were recorded from the intestine of the African bonytongue, Heterotis niloticus (Cuvier) (Arapaimidae, Osteoglossiformes), from the Mare Simenti in the Niokolo Koba National Park, East Senegal and from Kos...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：2010-11-01 00:00:00
abstract：:An epidemiological analysis was carried out of more than 11 thousand cases of scabies reported in 1961-1979 in the district of Karviná, Czechoslovakia. The paper presents analyses of the incidence of scabies in different age groups of patients divided according to sex and occupation and the results of the epidemiologi...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1982-01-01 00:00:00
abstract：:A new nematode species (Neoascarophis mariae n. sp.) is described based on specimens collected from the Argentine goatfish Mullus argentinae (Hubbs et Marini) from coastal waters off the state of Rio de Janeiro, Brazil. In the genus, the new species belongs to the group of species with females that have the vulva near...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2012.010
更新日期：2012-02-01 00:00:00
abstract：:A new nematode species, Paraphilometroides nemipteri sp. n. is described from the female specimens collected from the dorsal fin and operculum of the marine perciforme fish, Nemipterus peronii off Kuala Terengganu coastal waters in Malaysia. It considerably differs from all other species in Philometridae in the struct...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:A new species of amphizoic amoeba, Nuclearia pattersoni sp. n., isolated from gills of Rutilus rutilus L. is described. It is characterised by elongate flattened trophozoites of irregular shape. The longer dimension of their bodies is 13.2 (11.0-15.7) microm. Filopodia radiating mostly from the poles are 2 to 2.5 time...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
abstract：:Parasitological examinations of 102 specimens of the lesser great cormorant Phalacrocorax carbo sinensis (Blumenbach) from two nesting regions in the Czech Republic (South Bohemia and South Moravia) were carried out at the Institute of Parasitology, Czech Academy of Sciences (previously the Czechoslovak Academy of Sci...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2016.022
更新日期：2016-06-13 00:00:00
abstract：:Results are presented of a serological examination of 1,547 domestic animals (cattle, pig, sheep, horse, goat, dog, cat) from 9 Tyrolian districts (Austria), performed in order to disclose the incidence of leptospirosis. Completely significant titres were domonstrated by means of the MAL test in the serotypes icteroha...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1976-01-01 00:00:00
abstract：:It has been verified under laboratory conditions that constant and changing water temperature markedly affects the micropopulation growth in Gyrodactylus gobiensis parasite on the body surface of gudgeons (Gobio gobio L.). At a water temperature of 12 degrees C, the number of gyrodactylids gradually increased up to th...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:The effects of condensed tannins (CTs) extracted from five species of plants on egg hatching and larval development of Teladorsagia circumcincta (Stadelmann, 1894) (syn. Ostertagia circumcincta) were evaluated using in vitro bioassays. The extracts of CTs were obtained from Lotus pedunculatus (LP), Lotus corniculatus ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2010.008
更新日期：2010-03-01 00:00:00
abstract：:The dynamics of egg production of the tapeworm D. dendriticum has been estimated experimentally in nestlings of the herring gull Larus argentatus per day and per reproductive period. Numbers of eggs in strobilae have been estimated for the maturation period. Mean egg production, of one tapeworm per day (10.42 +/- 2.72...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:A comparison of the behavioural peculiarities of Ixodes persulcatus Schulze, 1930 (north-western population, Russia) and Ixodes ricinus (L., 1758) from western Russia and Denmark was determined by using two methods. Method 1 involved a sojourn of ticks on vertical plastic sticks and showed that the questing behaviour ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2000.029
更新日期：2000-01-01 00:00:00
abstract：:Two species of Coccomyxa Léger et Hesse, 1907, one of the least studied myxosporean genera, are reported from shallow coastal waters in the Gulf of Eilat, Red Sea, Israel. A new species, Coccomyxajirilomi sp. n. is described from the spotted frillgoby Bathygobius cyclopterus (Valenciennes) (Gobiidae). It forms polyspo...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2007.016
更新日期：2007-06-01 00:00:00
abstract：:Experimental infection of rainbow trout Oncorhynchus mykiss (Walbaum) with the monogenean Discocotyle sagittata (Leuckart, 1842) allowed comparison between trickle and single exposure, two infection modes demonstrated to occur in the wild. Both types of infection resulted in mean larval attachment success around 50%, ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2002.051
更新日期：2002-01-01 00:00:00
abstract：:In the course of the study "Toxoplasmosis and Prematurity" 330 blood samples from twins were examined. Our findings in a series of 21 premature twins (maternal sera were also examined) are reported in this paper. Toxoplasma antibodies were detected by the Sabin-Feldman test and specific IgM antibodies by the Remington...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:During October 2003, a specimen of Amblyrhynchotes honckenii (Bloch, 1795) was captured at low tide, with a hand net, in a rock pool at Koppie Alleen, De Hoop Nature Reserve, South Africa. This fish was heavily parasitized by unidentified gnathiid praniza larvae, caligid copepods identified as Caligus tetrodontis Barn...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2005.037
更新日期：2005-09-01 00:00:00
abstract：:A microsporidium isolated in vitro from urine of an AIDS patient was identified as a species of Encephalitozoon. Investigation of the isolate by electron microscopy, amplification of DNA by RAPD PCR, protein analysis by SDS-PAGE and Western blotting and infectivity to athymic mice revealed that it differs from establi...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:In field and laboratory conditions new data were obtained concerning the life cycle of the nidicolous tick Ixodes laguri. The development of this tick was studied in experimental nests of the European suslik and a two-year cycle of I. laguri was demonstrated. However, the materials obtained indicate that a longer cycl...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：:Ultrastructural characters of spermiogenesis and mature spermatozoon of Triaenorhina rectangula (Fuhrmann, 1908) are examined by transmission electron microscopy. Spermiogenesis follows the Bâ and Marchand's Type III spermiogenesis of cestodes. The process begins with the formation of a differentiation zone containing...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2009.032
更新日期：2009-12-01 00:00:00
abstract：:Arostrilepis beringiensis (Kontrimavichus et Smirnova, 1991) is redescribed on the basis of its type specimens from Lemmus trimucronatus (Richardson) and material from the collections of the Institute of Systematics and Ecology of Animals, Novosibirsk from the lemmings Myopus schisticolor (Lilljeborg) and Lemmus sibir...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2011.029
更新日期：2011-11-01 00:00:00
abstract：:From January 1992 to December 1993, a total of 2158 fish, namely Oreochromis leucostictus (Trewavas, 1983), Micropterus salmoides (Lacépède, 1802), Tilapia zillii (Gervais, 1848) and Barbus amphigrama (Boulenger, 1902) were sampled from thirteen stations on Lake Naivasha, Kenya, using a fleet of gill nets and examined...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:In Senegal, several areas provide great potential for agriculture and animal production, but African animal trypanosomosis (AAT) is one of the major constraints to the development of more effective livestock production systems. A study was conducted to assess the current situation of AAT in this country. Surveys were ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2015.044
更新日期：2015-08-18 00:00:00
abstract：:Previous studies have demonstrated that both tick saliva and Borrelia burgdorferi sensu lato antigens modulate the cytokine response of the host. In this paper, the effect of salivary gland extract (SGE) from Ixodes ricinus (L., 1758) ticks on cytokine production by primary cultures of mouse epidermal cells stimulated...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：2004-12-01 00:00:00
abstract：:Based on the study of type material, two new genera of cestodes (Cyclophyllidea: Anoplocephalidae) are proposed for Paranoplocephala Lüihe, 1910 sensu lato species from African rodents. Afrojoyeuxia gen. n., proposed for A. gundii (Joyeux, 1923) comb. n. from Ctenodactylus gundi (Rothmann) (Hystricomorpha: Ctenodactyl...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2013.051
更新日期：2013-11-01 00:00:00
abstract：:Cucolepis gen. n. is erected as monotypic for Cucolepis cincta sp. n., a new species of cyclophyllidean cestode of the family Paruterinidae. The new species is described from the squirrel cuckoo, Piaya cayana Lesson (Aves: Cuculiformes), taken from two localities in Paraguay in 1984 and 1985. This new genus is most si...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2012.040
更新日期：2012-12-01 00:00:00
abstract：:Synbranchiella gen. n. is proposed to accommodate Synbranchiella mabelae sp. n. (Proteocephalidae: Monticelliinae) from the intestine of the marbled swamp eel Synbranchus marmoratus Bloch, in the River Colastiné, a tributary of the middle River Paraná in Argentina. The new genus is placed in the Monticelliinae because...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2017.015
更新日期：2017-05-05 00:00:00
abstract：:Life cycle of Eimeria coecicola was studied in experimentally infected rabbits by light microscopy and by transmission and scanning electron microscopy. First and second generation meronts developed in the vermiform appendix; third and fourth generation meronts were located in the epithelium of the ileum. Gametogony d...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:Numerous specimens of Calydiscoides spp. from Lethrinus nebulosus and L. harak, and fewer specimens from L. lentjan, L. ravus and L. obsoletus, collected off New Caledonia, South Pacific, were examined. Three species of Calydiscoides were recognized. Calydiscoides difficilis (Yamaguti, 1953) Young, 1969 was generally ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2007.026
更新日期：2007-09-01 00:00:00
abstract：:Ophidascaris wangi sp. n. collected from the king rat snake Elaphe carinata (Günther) (Serpentes: Colubridae) in China is described using both light and scanning electron microscopy. The new species differs from its congeners in the presence of narrow lateral alae originating a short distance posterior to the base of ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：2014-12-01 00:00:00
