Aquaculture disease management and microbiota

Geographic distribution of Adult Salmon Enteritis (ASE), Enterocytozoon schreckii, and Ceratonova shasta in Chinook Salmon Oncorhynchus tshawytscha (Walbaum, 1792) in Oregon and Washington state and expanded histopathologic description of ASE

The paper examines the geographic distribution of Adult Salmon Enteritis (ASE) and its association with parasites in Chinook Salmon, finding ASE is prevalent in Columbia Basin but absent in Puget Sound.

Divergent coronaviruses discovered in the virome of lamprey with reddening syndrome

The paper identifies two divergent coronaviruses in lamprey with reddening syndrome, showing higher viral abundance in diseased individuals.

Transcriptional regulation of the rainbow trout spleen corticotropin-releasing factor system in response to inflammatory challenges: roles of NF-kB and cortisol

This study investigates how the CRF system in rainbow trout spleen responds to inflammation, showing differential regulation of CRFR1 and CRFR2 by cortisol and NF-κB.

Massilia varians P2-4, A Potential Biocontrol Agent against Pathogenic Pseudomonas aeruginosa in Eriocheir sinensis

This study isolates and characterizes Massilia varians P2-4, showing it effectively lyses Pseudomonas aeruginosa and is safe for use in aquaculture.

Vaccination reduces shedding of salmonid alphavirus subtype 3, but bacterial co-infection influences the effect

This study evaluates two vaccines for reducing SAV3 shedding in Atlantic salmon, showing vaccine efficacy is influenced by bacterial co-infection.

Whole genome sequencing reveals a novel Renibacterium salmoninarum lineage and suggests geographic endemism combined with anthropogenic spread in the North-East Atlantic area

Ecological dynamics of the Atlantic salmon gut microbiota across developmental phases and geographic regions

This study examines how the gut microbiota of Atlantic salmon changes with development and environment, finding reduced diversity and altered community structure in farmed salmon.

Hemocyte Viability Assay as an Alternative Method for Testing Bacterial Pathogenicity in Bivalves

The paper develops a hemocyte viability assay to test bacterial pathogenicity in bivalves, showing it correlates with larval mortality and enables year-round research.

Aquaculture facility-specific microbiota shape the zebrafish gut microbiome

This study compares zebrafish gut and tank water microbiomes across five aquaculture facilities, showing facility-specific microbial profiles and their impact on host microbiome composition.

Transcriptomic study of WSSV infection in Litopenaeus vannamei lymphoid organ via single nuclei RNA sequencing

The paper uses single nuclei RNA sequencing to study WSSV infection in shrimp lymphoid organ and identifies potential CRISPR targets for disease resistance.

Comparative transcriptomics of immune response to viral and bacterial stimuli in three acanthopterygian bony fish

The paper compares immune responses to viral and bacterial stimuli in three bony fish species using transcriptomic analysis, identifying conserved gene expression patterns and pathways.

Genomic analysis of Megalocytivirus genomes reveals widespread recombination

This study analyzes 63 Megalocytivirus genomes, revealing widespread recombination and identifying genes from outside the Iridoviridae family, leading to the designation of two new species.

Single-cell analysis of a salmonid immune system (brown trout Salmo trutta) reveals evolutionary divergence and hatchery-induced transcriptional reprogramming

This study uses single-cell analysis of brown trout immune cells to show evolutionary divergence and transcriptional changes due to hatchery rearing.

Experimental Bacterial Co-infection in Nile Tilapia Shows High Pathogenicity from Lake Kariba Isolates

This study evaluates the pathogenicity of four bacterial isolates in Nile tilapia, finding that co-infection leads to 100% mortality, while Aeromonas and Lactococcus cause significant symptoms.

Reducing the impact of HaHV-1 in Australian abalone: the role of age and immune priming

This study examines how age and immune priming affect susceptibility to HaHV-1 in Australian abalone, finding younger abalone are less susceptible and immune priming with poly(I:C) provides protection.

Molecular characterization and pathogenicity assessment of bacteria causing infectious diseases in cage-farmed fish in the Lake Victoria

This study identifies and characterizes three pathogenic bacteria causing infectious diseases in cage-farmed fish in Lake Victoria, Tanzania, and assesses their pathogenicity.

Characterisation of the Tilapia Lake Virus proteome and identification of an 11th protein, S9-F3

This study identifies an 11th protein, S9-F3, in Tilapia Lake Virus through alternative reading frame translation and characterizes its nuclear export mechanism.

Flatfish intestinal microbiota depend on various host traits, and vary with sediment type and bottom trawling effort

This study examines how host traits and environmental factors, including bottom trawling, influence the intestinal microbiota of flatfish species in the North Sea.

Skin microbiome mirrors habitat divergence in amphibious combtooth blenny fish (Teleostei, Blenniidae)

This study examines how skin microbiomes of amphibious fish change across intertidal habitats, finding distinct microbial communities linked to habitat-specific selective pressures.

A Chryseobacterium massiliae pore-forming MACPF domain protein mediates intra and interspecies competition against Bacteroides

This study identifies CSAP-1, a MACPF domain protein from Chryseobacterium massiliae, as a broad-spectrum antimicrobial that inhibits Flavobacteriales species and contributes to zebrafish larval protection against Flavobacterium covae.

Novel Adomaviruses Associated with Blotchy Bass Syndrome in Black Basses (Micropterus spp.)

This study identifies novel adomaviruses linked to hyperpigmented lesions in black basses and provides evidence supporting their role in the disease.

Macroevolutionary changes in gene expression response to an immune stimulus across the diversity of fishes

The paper tests macroevolutionary stability of transcriptomic responses to an immune challenge across 15 jawed fish species, finding inconsistent gene expression patterns despite conserved phenotypic responses.

Heat stress impacts the gut microbiome of Atlantic salmon by promoting growth of Vibrionaceae and is associated with extensive cast production

This study shows heat stress in Atlantic salmon increases Vibrionaceae abundance and cast production, suggesting a dysbiosis effect linked to inappetence.

Amoebic gill disease (AGD) in Atlantic Salmon investigated through a holo-omic lens

This study investigates Amoebic Gill Disease (AGD) in Atlantic salmon using a holo-omic approach, linking host genetics, microbiota, and disease resistance traits.

Gene gain and loss drive the diversification of gig immune genes in teleosts: structural and regulatory insights from Atlantic salmon

This study examines the evolution of gig immune genes in teleosts, focusing on Atlantic salmon, revealing distinct evolutionary trajectories and regulatory mechanisms.

Antimicrobial-producing Bacteria from Fish Epidermal Mucus Alter the Fish Epidermal Bacterial Flora and Host Resistance to Infection

This study identifies an antimicrobial-producing bacterium from fish epidermal mucus that alters the skin microbiota and enhances host resistance to infection.

Weak influence of light and time of day on transcriptional response to SAV3 infection in Atlantic salmon (Salmo salar) smolts

This study investigates how light conditions and time of day affect the immune response to SAV3 infection in Atlantic salmon smolts, finding minimal impact on transcriptional responses.

Novel midgut smooth muscle necrosis (MSMN) in translucent or glass post-larvae of whiteleg shrimp

The paper describes a novel histopathological finding of midgut smooth muscle necrosis (MSMN) in whiteleg shrimp postlarvae associated with TPD/GPD, highlighting its distinct features and potential diagnostic significance.

Virus-inclusive single-nucleus RNA sequencing reveals two distinct endothelial response patterns in infectious salmon anaemia.

This study uses single-nucleus RNA sequencing to identify two distinct endothelial response patterns to ISAV infection in Atlantic salmon.

Wild gut microbiome suppresses the opportunistic pathogen Aeromonas in medaka under domesticated rearing conditions

This study shows that wild gut microbiomes suppress Aeromonas in medaka under domesticated conditions, preventing pathogen colonization through habitat-derived microbial interactions.