Diversity of sea bass pathogen strains highlights challenge in Mediterranean aquaculture

A new study analyzing three strains of the bacterium Vibrio harveyi found among farmed sea bass in the Mediterranean has underlined the diversity of the pathogen, which poses a severe threat to the region’s aquaculture.

Vibrio Harvey strains

Diversity of sea bass pathogen strains highlights challenge in Mediterranean aquaculture

Sound Science

Low-light conditions affect tilapia survival and disease resistance

Light can affect the survival, growth and immune response of fish. New research shows that persistent exposure to low-intensity light decreases the survival rate of Nile tilapia but stimulates their disease resistance.

Tilapia strain resistant to damaging virus could help reduce losses

The discovery of a strain of Nile tilapia resistant to tilapia lake virus (TiLV) may prove useful in the fight to reduce the impact of the pathogen, which has emerged in the last decade and can cause extremely high mortalities among farmed fish.

Atlantic sea cage

Submerged cages with air domes improve sea lice infestation but reduce welfare

Submerging Atlantic salmon sea cages with air domes can greatly reduce sea lice infestation levels, but this appears to come at a high cost.

Sea bass immunity to parasitic disease

Sea bass immunity to parasitic disease could lead to new treatments

No effective licensed therapies exist against amyloodiniosis, a disease of fish species caused by Amyloodinium ocellatum (AO) ectoparasites. However, new research has shown that European sea bass (ESB) can develop specific immunity to the disease, which could in turn lead to the development of vaccines.

RAS tilapia

RAS water exchange rates could affect Nile tilapia welfare

Recirculating aquaculture systems (RAS) are often viewed as viable options…

Antimicrobial resistance in Asia

Levels of antimicrobial resistance in Asian aquaculture ‘concerning,’ say scientists

Twenty years’ worth of data “raise urgent concerns” about antimicrobial resistance in Asian aquaculture, say the authors of a new review.

Impact of climate on aquaculture

Urgent action needed to address climate impact on aquaculture, study says

Urgent action is needed to understand and counter the effects of anthropogenic climate change on farmed fish, according to a new review of knowledge to date.

New research on deltamethrin resistance could pave way for optimized sea lice treatment

New research on deltamethrin resistance in sea lice could help improve the effectiveness and reduce the costs of treating the global salmon industry’s “billion-dollar problem.”