Results 1 to 10 of about 263 (135)

Cryptobia iubilans in Cichlids

open access: yesEDIS, 2014
After many years of diagnostics at the University of Florida and at other laboratories around the country, it appears that Cryptobia iubilans is not uncommon among cichlids, and that environmental and other factors determine the extent of disease.
Ruth Francis-Floyd, Roy Yanong
doaj   +9 more sources

Parasite Diversity in a Freshwater Ecosystem [PDF]

open access: yesMicroorganisms, 2023
Parasites are a significant component of biodiversity. They negatively affect fish appearance, growth, and reproduction. In this study, the prevalence of infection, diversity, and mean intensity of parasites were examined in 9 freshwater fish species (45
Amana Shafiq   +13 more
doaj   +2 more sources

Taxonomic revision of Edebessa Walker, 1856 and Langucys Butler, 1878 with descriptions of eight new species (Lepidoptera: Megalopygidae, Trosiinae)

open access: yesSHILAP, 2023
Taxonomic revisions of two genera of the family Megalopygidae - Edebessa Walker, 1856 and Langucys Butler, 1878 are given. Two new species are described in the genus Edebessa (E. cryptobia Volkova, sp. nov. and E. vespera Volkova, sp. nov.), and six new
Julia S. Volkova
doaj   +1 more source

Hiện trạng nhiễm ký sinh trùng ở cá tra (Pangasianodon hypophthalmus) giai đoạn ương giống

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2020
Nghiên cứu được thực hiện nhằm xác định hiện trạng nhiễm ký sinh trùng ở ba giai đoạn ương (cá bột, cá hương và cá giống) cá tra (Pangasianodon hypophthalmus).
Nguyễn Thị Thu Hằng   +4 more
doaj   +3 more sources

Redescription of the genus Allocryptobia Viette, 1951 (Lepidoptera: Cossidae)

open access: yesSHILAP, 2019
Based on the study of male and female genitalia and the external features of Cryptobia musae Herrich-Schäffer, [1854], the type species of the genus Allocryptobia Viette, 1951, this genus is redescribed.
E. V. Yakovlev   +3 more
doaj   +1 more source

Análise parasitológica e hematológica em tilápia do Nilo, Oreochromis niloticus Linnaeus, 1757, da represa de Guarapiranga, Estado de São Paulo, Brasil - DOI: 10.4025/actascibiolsci.v27i3.1334

open access: yesActa Scientiarum: Biological Sciences, 2008
Foram coletadas na represa de Guarapiranga, São Paulo, entre agosto de 1996 e abril de1998, 206 tilápias, Oreochromis niloticus, com o objetivo de relacionar a condição de saúde desses animais à ocorrência de parasitos.
Maria José Tavares Ranzani-Paiva   +2 more
doaj   +1 more source

The parasitofauna of the Siberian sterlet Acipenser ruthenus marsiglii of the Lower Irtysh

open access: yesRegulatory Mechanisms in Biosystems, 2018
In the Ob-Irtysh basin, studies on the parasitofauna of the Siberian sterlet are very limited and confined to the middle of the twentieth century.
E. L. Liberman, E. L. Voropaeva
doaj   +1 more source

Prevalência, distribuição geográfica e sazonal de protozoários e mixozoários parasitos de jaú (Zungaro jahu) no Pantanal Matogrossense

open access: yesPesquisa Veterinária Brasileira, 2012
Estudo realizado no Pantanal Matogrossense, avaliou a prevalência, a distribuição geográfica e sazonal de protozoários e mixozoários parasitos de jaú (Zungaro jahu).
Edson A. Adriano   +3 more
doaj   +1 more source

Phylogeny of the kinetoplastida: taxonomic problems and insights into the evolution of parasitism

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
To further investigate phylogeny of kinetoplastid protozoa, the sequences of small subunit (18S) ribosomal RNA of nine bodonid isolates and ten isolates of insect trypanosomatids have been determined.
Dmitri A Maslov   +2 more
doaj   +1 more source

Isopod fauna, excluding Epicaridea, from the Strait of Gibraltar and nearby areas (Southern Iberian Peninsula)

open access: yesScientia Marina, 2001
A total of 42 isopod species from the Strait of Gibraltar and nearby areas were found, including the first record of Munna fabricii, Monodanthura maroccana, Campecopea hirsute, and Natatolana gallica from the Mediterranean; Synisoma nadejda and Uromunna ...
José Castelló, José Luis Carballo
doaj   +1 more source

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