Results 21 to 30 of about 329 (139)

Parasitofauna of commercial fish species of the Northern (Small) Aral Sea [PDF]

International Journal for Parasitology: Parasites and Wildlife
The catastrophic desiccation of the Aral Sea and subsequent hydrological changes have profoundly altered the region's ecosystem, leading to the restructuring of both fish communities and their associated parasite assemblages.
Salika Berdiakhmetkyzy, Аigerim А. Abdibayeva, Ainur А. Zhaksylykova, Bekzhan I. Barbol, Еrzhan Zh Kidiraliyev, Eleonora A. Aryssova, Saltanat A. Kenessary, Alexandr B. Shevtsov, Dinara K. Kamalova, Tynysbek T. Barakbayev, Nurlan S. Sambayev, Aida M. Abdybekova   +11 more
doaj   +2 more sources

The complete mitochondrial genome of Sindiplozoon coreius: genome structure description, comparative analysis, and phylogenetic implications [PDF]

BMC Genomics
Background Diplozoids are common gill-parasitic monogenean ectoparasites of cyprinid fishes and can adversely affect host respiration. Despite their ecological and pathological significance, genomic information on diplozoids remains limited ...
Lu Shen, Li-Xian Fan, Fei-Yan Meng
doaj   +2 more sources

First record of Amphipolycotyle chloroscombrus Hargis, 1957 (Monogenea, Polyopisthocotylea, Gastrocotylidae) in the South Atlantic Ocean [PDF]

Brazilian Journal of Oceanography, 2016
Monogeneans are a group of largely ectoparasitic members of the phylum Platyhelminthes. These worms are considered to be among the most host-specific parasites in fish, commonly found on fins, body skin, gills, gill chambers, buccal cavity, cornea and nostrils of their host (BUCHMANN et al., 2004).
Sathyabama Chellappa, Eudriano Costa
exaly   +5 more sources

Morphological and genetic identification of the gill monogenean parasite (Diclidophora merlangi) that infects Twobar Seabream Fish (Acanthopagrus bifasciatus) in the Arabian Gulf, Saudi Arabia [PDF]

Helminthologia
Ectoparasites, particularly monogeneans, negatively affect fish health and growth. This study identified monogenean parasites in the twobar seabream, Acanthopagrus bifasciatus (Sparidae), inhabited the Arabian Gulf (Saudi Arabia). Following that, forty A.
Alojayri G., Al-Quraishy S., Al-Shaebi E., Mohammed O. B., Abdel-Gaber R.   +4 more
doaj   +2 more sources

Phylogeny of the monopisthocotylea and Polyopisthocotylea (Platyhelminthes) inferred from 28S rDNA sequences.

International journal for parasitology, 2000
This study focuses on the phylogenetic relationships within the Polyopisthocotylea and Monopisthocotylea, two groups that are often grouped within the monogeneans, a group of disputed paraphyly. Phylogenetic analyses were conducted with multiple outgroups chosen according to two hypotheses, a paraphyletic Monogenea or a monophyletic Monogenea, and with
Mollaret, Isabelle, Jamieson, Barrie G. M., Justine, Jean-Lou   +2 more
openaire   +6 more sources

Ultrastructural patterns of the excretory ducts of basal neodermatan groups (Platyhelminthes) and new protonephridial characters of basal cestodes [PDF]

Parasites & Vectors, 2020
Background The flatworms (Lophotrochozoa: Platyhelminthes) are one of the major phyla of invertebrates but their interrelationships are still not well understood including unravelling the most closely related taxon of the Neodermata, which includes ...
Larisa G. Poddubnaya, Roman Kuchta, Tomáš Scholz   +2 more
doaj   +2 more sources

Phylogénie des monogènes basée sur une analyse de parcimonie des caractères de l'ultrastructure de la spermiogenèse et des spermatozoïdes incluant les résultats récents

Knowledge and Management of Aquatic Ecosystems, 1993
Les caractères de la spermiogenèse et du spermatozoïde ont été utilisés pour une analyse de parcimonie des Monogènes avec le programme PAUP. Les données utilisées comprennent la matrice proposée dans une analyse précédente (JUSTINE, 1991, Int.
JUSTINE J-L.
doaj   +3 more sources

The Buccal Organ of Some Monogenea Polyopisthocotylea

Zoologica Scripta, 1979
Light and electron microscopic studies of the ‘buccal suckers’ of Gotocotyla secunda showed that they are complex structures with muscular, glandular, (resorptive?), and probably sensory components. The name ‘buccal organ’ is therefore proposed for them.
KLAUS ROHDE
openaire   +2 more sources

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

Systematic 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, Gibson, David, Sommerville, Christina   +2 more
openaire   +3 more sources

Bivagina pagrosomi Murray (1931) (Monogenea: Polyopisthocotylea), a microcotylid infecting the gills of the gilt-head sea bream Sparus aurata (Sparidae) from the Red Sea: morphology and phylogeny [PDF]

Journal of Veterinary Research, 2019
Monogenea is a class of ectoparasitic flatworms on the skin, gills, or fins of fish. Microcotylidae is a family of polyopisthocotylean monogeneans parasitising only marine fishes.
Dajem Saad Bin, Morsy Kareem, Shati Ali, Ezzat Ahmed, El-Said Fahmy, Abdel-Gaber Rewaida   +5 more
doaj   +2 more sources