Results 41 to 50 of about 200 (118)

Chaetotaxy of members of the Gyrodactylidae (Monogenea), with comments upon their systematic relationships with the Monopisthocotylea and Polyopisthocotylea

open access: yesSystematic Parasitology, 1998
This study investigates intra- and inter-generic variation in the chaetotaxy pattern of members of the Gyrodactylidae and compares these data with those from other monogenean groups elucidated by other workers. The staining of surface sensillary structures has revealed areas of homology between the two genera Gyrodactylus and Ooegyrodactylus, which ...
Shinn, Andrew   +2 more
openaire   +2 more sources

Stimuli de l'environnement, organes des sens et comportement des Monogènes juvéniles et adultes

open access: yesKnowledge and Management of Aquatic Ecosystems, 1993
Lorsque les larves de Monogènes (oncomiracidiums) établissent leur premier contact avec l'hôte, cela correspond à un changement fondamental dans leur mode de vie.
KEARN G. C.
doaj   +1 more source

Distribution of the gill parasite Discocotyle sagittata (Monogenea: Polyopisthocotylea) in parr of Atlantic salmon Salmo salar and sea trout S. trutta in Norwegian rivers

open access: yesFauna Norvegica, 2023
The monogenean gill parasite Discocotyle sagittata is reported from parr of Atlantic salmon Salmo salar and sea trout S. trutta in the anadromous part of 86 out of 223 Norwegian rivers. The prevalence in each river varied from 1.5% to 88.9%.
Tor Atle Mo
doaj  

Trickle and single infection with Discocotyle sagittata (Monogenea: Polyopisthocotylea): effect of exposure mode on parasite abundance and development [PDF]

open access: yesFolia Parasitologica, 2002
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%, which was significantly dependent ...
Rubio-Godoy, M, Tinsley, RC
openaire   +2 more sources

The Ultrastructure of the Gastrodermis and the Nutrition of the Gill Parasitic Atriaster heterodus Lebedev and Paruchin, 1969 (Platyhelminthes: Monogenea)

open access: yesMemorias do Instituto Oswaldo Cruz, 1998
The gastrodermis of Atriaster heterodus Lebedev & Paruchin, 1969 (Polyopisthocotylea), a gill parasite from Diplodus argenteus (Valenciennes, 1830), is composed of "U"-shape hematin cells and a connecting syncytium, both having cytoplasmic lamellae ...
Santos Cláudia P   +2 more
doaj  

Diversity and host specificity of monogeneans in Antarctic fishes: a review

open access: yesУкраїнський антарктичний журнал
We compiled and harmonised published records of monogeneans from Antarctic and sub-Antarctic fishes, standardising host names, georeferencing localities, deduplicating records, and excluding ambiguous entries (genuslevel hosts or “not specified” hosts ...
Ivanna Dudliv, Yuriy Kvach
doaj   +1 more source

A New Species of Anthocotyle (Polyopisthocotyla: Discocotylidae) from the Gills of the European Hake Merluccius merluccius (Teleostei, Merlucciidae) with a Revision of the Composition of the Genus

open access: yesParasitologia
This study revisits the taxonomy of Anthocotyle merluccii, originally described from the European hake Merluccius merluccius in the northeast Atlantic, addressing discrepancies in clamp morphology across populations. The original description from Belgium
Chahinez Bouguerche
doaj   +1 more source

Light and electron microscopy of Paranella diplodae N. SP. (Polyopisthocotylea;Microcotylidae; Monogenea ) from some Red Sea Teleost fishes in Egypt

open access: yesJournal of Veterinary Medical Research, 2007
The present study deals with a monogenean parasite infecting, some marine fish through light and scan electron microscopy. It revealed that the percentage of infection was 48% (14 out of 50 fish), 28% (14 out of 50 fish), 22% (11 out of 50 fish) and 16% (
E. M. Bayoumy   +2 more
doaj  

ULTRASTRUCTURAL STUDIES ON THE FORM AND FUNCTION OF THE GASTRODERMIS OF PROTOPOLYSTOMA XENOPI (MONOGENOIDEA: POLYOPISTHOCOTYLEA)

open access: yesThe Biological Bulletin, 1973
1. Ultrastructural studies reveal that the cecal epithelium of the monogenean Protopolystoma xenopi is composed of two cell types. Hematin-containing cells are discontinuously arranged and alternate with a thin cytoplasmic layer, the connecting syncytium.2.
openaire   +2 more sources

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