Protozoan Co-Infection Drives Fish Mortality Event in Crete's Karteros River. [PDF]
ABSTRACT In August 2024, a significant fish kill involving hundreds of flathead grey mullet (Mugil cephalus) was reported in the delta region of the Karteros River, Crete, Greece. The investigation identified the primary cause of mortality as severe parasitic infections, specifically from the protozoan parasites Amyloodinium ocellatum and Trichodina sp.
Katharios P, Karageorgou E.
europepmc +2 more sources
The First Report of Cod Gill Poxvirus in Gills of Atlantic Cod (Gadus morhua L.) Suffering From Cardiorespiratory Disease. [PDF]
ABSTRACT Atlantic cod farming experiences renewed growth in Norway, and increased awareness is essential to address emerging diseases in this species. There are few reports on gill diseases in cod, and to date, no viral gill infections of cod have been documented. In this study, we collected samples from three sequential time points in summer 2023 from
Gjessing MC +4 more
europepmc +2 more sources
Clinical Presentation and Pathological Effects of a Hydrozoan Bloom on Farmed Atlantic Salmon. [PDF]
ABSTRACT Largely unpredictable, gelatinous plankton blooms are a growing concern for the ever‐expanding mariculture industry. Recently, a bloom of a colonial hydrozoan known as Apolemia sp. was detected via a citizen‐science initiative, Nye.dugnadforhavet.no, in mid‐Norway in July 2023.
Madaro A +5 more
europepmc +2 more sources
Exploring the Parasite Biodiversity in Climbing Perch (<i>Anabas testudineus</i>) in Buriram, Thailand: Morphological-Based Characterization. [PDF]
Anabas testudineus is an amphibious freshwater fish species native to Thailand, which is afflicted by protozoan and metazoan infections. This study was aimed at identifying the presence of parasites in A. testudineus from Thung Lam Natural Reservoir in Buriram Province, Thailand, between November 2022 and January 2023.
Sriwongpuk S, Techaoei S.
europepmc +2 more sources
The Effect of Parasitization by Trichodinid Ciliates on the Mortality of Cultured Pacific Fat Sleeper larvae (Dormitator latifrons) [PDF]
Trichodinidae, a prevalent group of protozoan ectoparasites in aquaculture, cause rapid mortality in fish hatcheries. Despite their significance, knowledge about these parasites in farmed fish in South America, especially in native species that are ...
Byron Manuel Reyes-Mero +4 more
doaj +2 more sources
Development of a Real-Time PCR Assay for Noninvasive Detection of Miamiensis avidus in Olive Flounder Aquaculture. [PDF]
ABSTRACT Miamiensis avidus (syn. Philasterides dicentrarchi) leads to high mortality and economic losses in olive flounder (Paralichthys olivaceus) aquaculture. In this study, we developed a real‐time PCR assay targeting the cytochrome c oxidase subunit I (cox1) gene of M. avidus to sensitively detect and quantify the parasite in seawater.
Kim JY, Shin SM, Kwon SR, Jung SJ.
europepmc +2 more sources
From Mud to Meat: Comparative Metabarcoding Reveals Two Different Evolutionary Paths to Carnivory in a Group of Meiofaunal Annelids. [PDF]
ABSTRACT Evolutionary transitions to carnivory represent profound shifts in feeding mode that are often accompanied by widespread changes in organismal function, behaviour and ecology. Such transitions have evolved numerous times among animals, and predator–prey interactions have been major drivers of animal evolution.
Mack JM, Bely AE.
europepmc +2 more sources
Morphology and Molecular Phylogeny of Endosymbiotic Ciliates (Peritrichia, Mobilida) of Marine Invertebrates with Descriptions of Two Novel Species Urceolaria clepsydra n. sp. and Urceolaria bratalia n. sp. [PDF]
ABSTRACT Mobilid ciliates are a morphologically distinct group of protists that form a wide range of symbiotic relationships with aquatic animals and includes three subgroups: Trichodinidae, Urceolariidae, and Polycyclidae. Trichodinids are best known for infecting fishes, whereas urceolariids infect diverse marine invertebrates.
Martinez G, Leander BS, Park E.
europepmc +2 more sources
Unclear host taxonomy hinders parasite studies: An up-to-date checklist of the protozoan and metazoan parasites of Phoxinus minnows (Teleostei: Leuciscidae). [PDF]
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 ...
Esposito A +3 more
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Bacterial Communities From Two Freshwater Aquaculture Systems in Northern Germany. [PDF]
Freshwater aquaculture in open systems utilises water from a natural source, which limits the control of water conditions. Water microbiome description could indicate water quality changes and be used for improving the farm management. Water microbiome composition did not change significantly between inflow and outflow water, although heterotrophic ...
Clols-Fuentes J +4 more
europepmc +2 more sources

