A new species of Ceratomyxa (Ceratomyxidae, Myxosporea) was found infecting the gall bladder Argentine croaker Umbrina canosai Berg 1895 (Sciaenidae, Perciformes) from sea. Using an integrative taxonomic approach that combines morphological, bioecological, and molecular analyses, we provide evidence clearly differentiates this known taxa formally describe fialai as a species. This study is first to apply landmark-based geometric morphometrics (GM) in myxozoan research, providing detailed...

An abstract is not available for this content so a preview has been provided. As you have access to content, full PDF via the 'Save PDF' action button.

While reviewing museum collections of Pseudobenedenia Johnston, 1931, we found five deposited slides marked by Dr. Lothar Carlos Guillermo Szidat as lauriei Szidat, 1965 from Notothenia neglecta Nybelin, 1951. We have removed the synonymization a junior synonym nototheniae 1931 and restored its identity valid species that redescribe herein. added never-published data on ovary, testes, bursa, haptor diameter, egg P. lauriei. As well, body size, measurements sclerotized structures (accessory...

This study reports a new Trichodinidae, Trichodina bellottii n. sp., parasitizing the pearly fish Austrolebias from Buenos Aires, Argentina. Its small subunit ribosomal ribonucleic acid (SSU rDNA) was sequenced for first time. Based on results morphological identification, SSU rDNA sequencing, and Elliptical Fourier analysis, species identified compared with similar species. Phylogenetic analysis revealed that genetic distances among reached interspecific levels, furthermore, phylogenetic...

AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 15:153-157 (2012) - DOI: https://doi.org/10.3354/ab00415 New locations and parasitological findings for invasive shrimp Palaemon macrodactylus in temperate southwestern Atlantic coastal waters Sergio R. Martorelli*, Pilar Alda, Paula Marcotegui, Martín M. Montes, Luciano F. La Sala Centro de Estudios Parasitológicos y Vectores...

Five species of digeneans (4 Microphallidae, 1 Echinostomatidae) were recovered from a total 85 Olrog's gulls, Larus atlanticus (dead chicks). Birds collected breeding colony in the Bahía Blanca estuary, Argentina, during seasons 2003 (n = 6), 2005 66), and 2006 13). Digeneans identified as Maritrema bonaerensis, orensensis, Odhneria odhneri, Levinseniella cruzi, Himasthla escamosa. Except for M. all other helminth represent new host records, reported constitute locality records. Likely...

Epibionts and parasites were recovered from the grapsid crabs Cyrtograpsus angulatus Neohelice granulata in Bahía Blanca estuary, Argentina. Among epibionts, we identified a filamentous bacterium, protozoan Epistylis sp., copepod Neocancrincola platensis on gills; barnacles Balanus amphitrite glandula as well bryozoan Conopeum reticulum caparace. endoparasites, acanthocephalan Profilicollis chasmagnathi hindgut, nematodes of subfamily Acuariinae Ascarophis sp. haemocoel, an encysted...

During surveys of parasites the whitemouth croaker Micropogonias furnieri (Desmarest) and mullet Mugil platanus Günther from Samborombón Bay, Argentina, Trichodina puytoraci, T. lepsii, jadranica, murmanica, Diparitella simplex scalensis sp.n. were morphologically studied.Taxonomic morphometric data for these trichodinids based on dry silver nitrate-impregnated specimens are presented.This study is first formal report southwest Atlantic Ocean, description a new species M. platanus.

Myxosporean Myxobolus saladensis sp. nov. in the gills of Mugil liza Valenciennes, 1836 from Samborombón Bay was described by light and electron microscopy studies. Spores were pyriform binucleated, measuring 10.63±0.36 µm (n=20) long, 9.24±0.50 wide 4.13±0.36 thick, included polysporic cyst-like plasmodia. Elongated polar capsules equal size (3.84±0.27 long 2.30±0.12 wide). The sporoplasm contained some sporoplasmosomes. Each PC a filament with 4-5 coils obliquely arranged relation to axis....

Abstract Demidospermus annulus sp. nov. (Platyhelminthes, Monogenea, Ancyrocephalidae) is described from the gills of catfish Parapimelodus valenciennis Lütken collected in Samborombón Bay, Argentina. The new species differs all congeneric mainly by structure accessory piece male copulatory organ, sclerotized ring-shaped vaginal aperture and dorsal bar articulation.

During surveys of parasites the pepper cory Corydoras paleatus Jenyns, 1842 and sided-livebearer Jenynsia multidentata from Samborombón River, Argentina, Trichodina corydori n. sp., cribbi Dove O’Donoghue, 2005 T. jenynsii sp. were morphologically studied. Taxonomic morphometric data for these trichodinids based on dry silver nitrate-impregnated specimens are presented. is characterized by a prominent blade apophysis, section connecting central part short, adoral ciliary spiral makes turn...

In this paper, we describe two new species of Syndesmis living in Pseudechinus magellanicus the Southwest Atlantic Ocean. The have a long stylet male reproductive system, which is different from that known genus. Specimens selknami n. sp. ∼220-μm-long (∼1/3 body length, 0.69 mm). This ratio unique because only four (Syndesmis echinorum, rubida, inconspicua and echiniacuti) similar lengths but are larger sizes (3-5 aonikenki ∼148-μm-long (∼1/10 1.11 pallida has uterus located posteriorly,...

Trichodina centrostrigeata Basson, Van As et Paperna, 1983 from Oreochromis mossambicus (Peters) and O. niloticus (Linnaeus) different host populations Argentina, Mexico South Africa was reviewed. Although T. has a distinct denticle structure that makes morphological taxonomic inferences uncomplicated, variation of the denticles within among individuals were still observed. While traditional taxonomy mobilines is heavily reliant on morphometrics, recently even more so molecular analysis,...

In total 374 specimens corresponding to four species of shrimp: Artemesia longinaris, Pleoticus muelleri, Peisos petrunkevitchii, Palaemon macrodactylus, and two crabs: Neohelice granulata Cyrtograpsus angulatus were studied in the search white spot syndrome virus (WSSV).The crustaceans collected estuary Bahia Blanca, port Mar del Plata Samborombón Bay, Argentina, between 2010 2014.A polymerase chain reaction (PCR) analysis all them has not detected any presence.These new results suggest...

Acta Protozoologica » 2018 Volume 57, Issue 2 Morphology and Sequence Data of Mexican Populations the Ciliate Parasite Marine Fishes Trichodina rectuncinata (Ciliophora: Trichodinidae) A

Tilapia is the common name for a wide spectrum of cichlid fishes usually selected aquaculture activities. However, some aspects natural history these fishes, such as diversity certain ectoparasitic protistan groups remain understudied. In order to understand ciliates family Trichodinidae parasitizing tilapia around world, database with all available accounts was assembled. This information, along records derived from our own recent research, allowed us generate checklist containing...