Results 41 to 50 of about 908 (173)

Proteomic Analysis of the Parasitic Cnidarian Ceratonova shasta (Cnidaria: Myxozoa) Reveals Diverse Roles of Actin in Motility and Spore Formation

open access: yesFrontiers in Marine Science, 2021
Myxozoans are widely distributed aquatic obligate endoparasites that were recently recognized as belonging within the phylum Cnidaria. They have complex life cycles with waterborne transmission stages: resistant, infectious spores that are unique to ...
Vera Brekhman   +8 more
doaj   +1 more source

Global Warming Affects the Pathogenesis of Important Fish Diseases in European Aquaculture

open access: yesReviews in Aquaculture, Volume 18, Issue 1, January 2026.
The effect of global warming on pathogens and their fish hosts that could exacerbate the negative outcomes for aquaculture. Changes in farming practices and the development of innovative mitigation tools may prove essential to cope with the effects and impacts of rising water temperatures on fish diseases in Europe.
George Rigos   +7 more
wiley   +1 more source

Evolutionary diversification and immunoprofiling of cathepsin L toolkit in common carp

open access: yesFrontiers in Cellular and Infection Microbiology
Cysteine cathepsins are central regulators of lysosomal proteolysis, immune and metabolic homeostasis, yet the evolutionary forces shaping their diversification in vertebrates remain incompletely understood.
Sagar Nayak   +11 more
doaj   +1 more source

Dietary Differentiation Between Sympatric Ecotypes of Astatotilapia calliptera From Lake Masoko (Kisiba), Tanzania Revealed by Metabarcoding

open access: yesEnvironmental DNA, Volume 7, Issue 4, July–August 2025.
Differentiation between sympatric Astatotilapia calliptera ecotypes using dietary metabarcoding reveal presence of resource partitioning. ABSTRACT Sympatric speciation is defined as the formation of new species in the absence of geographic barriers, but the genomic and life history strategy mechanisms underpinning sympatric speciation are still far ...
Kirthana Pillay   +10 more
wiley   +1 more source

Transmission Biology of the Myxozoa

open access: yes, 2012
Myxozoans are spore-forming parasites of both freshwater and marine fishes (Lom & Dykova, 1992, Kent et al., 2001; Feist & Longshaw, 2006). The Myxozoa were previously classified as protozoans, although the multicellular state and functional specialization of the cells composing spores were considered to exceed protozoan level (Lom & Dykova, 1992 ...
Hiroshi Yokoyama   +2 more
openaire   +2 more sources

Understanding Dynamic Molecular Responses Is Key to Designing Environmental Stress Experiments: A Review of Gene and Protein Expression in Cnidaria Under Stress

open access: yesMolecular Ecology, Volume 34, Issue 9, May 2025.
ABSTRACT Gene and protein expression analyses are powerful tools to investigate the responses of cnidarians to stress, providing information on both genetic and functional variation and capturing dynamic shifts in organismal physiology. As the use of high throughput sequencing to understand responses of cnidarians to stressors is still relatively new ...
Clarissa G. Molinari   +2 more
wiley   +1 more source

Kudoa sciaenae (Myxozoa: Multivalvulidae) cysts distribution in the somatic muscles of Stellifer minor (Tschudi, 1844) (Pisces: Sciaenidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1992
The distribution of Kudoa sciaenae cysts (Myxozoa), in terms of intensity and prevalence, in the somatic muscles of the sciaenid Stellifer minor, shows an apparent preference for the anterior body region, including the head. The observed preference seems
Marcelo Oliva   +3 more
doaj   +1 more source

Unclear host taxonomy hinders parasite studies: An up‐to‐date checklist of the protozoan and metazoan parasites of Phoxinus minnows (Teleostei: Leuciscidae)

open access: yesJournal of Fish Biology, Volume 105, Issue 6, Page 1501-1539, December 2024.
Abstract Phoxinus minnows are small freshwater fish found throughout Eurasia. The taxonomy of this genus is still under investigation, and new species are regularly described. They are frequently introduced outside their native range due to their use as live bait for angling, and such fish introductions can have diverse impacts on the recipient areas ...
Anaïs Esposito   +3 more
wiley   +1 more source

Fish Gut Metabarcoding Detects Diets and Parasites Simultaneously

open access: yesEnvironmental DNA, Volume 6, Issue 6, November–December 2024.
Understanding dietary habits and trophic niches of species is crucial for the conservation and management of species and ecosystems. We applied a multimarker metabarcoding approach to assess the diet and parasites of commercially exploited beaked redfish (Sebastes mentella).
Dilli Prasad Rijal   +7 more
wiley   +1 more source

Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

open access: yesPesquisa Agropecuária Brasileira, 2013
O objetivo deste trabalho foi descrever a fauna parasitária de cachara (Pseudoplatystoma reticulatum) cultivado em tanque-rede, no rio Paraguai. Dez peixes com peso médio de 598,0±81,3 g e comprimento total médio de 38,6±1,6 cm foram examinados. Todos os
Gabriela Tomas Jeronimo   +5 more
doaj   +1 more source

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