Global warming remains a neglected environmental challenge for the sustainability of primary production, particularly aquaculture, which is highly susceptible to the spread of established pathogens and the induction of emerging infectious diseases under warming conditions. Over the past decade, Europe has experienced dramatically high temperatures that may impact both farmed fish and their pathogens in a largely unpredictable...

In aquaculture, the interactions and balance—or imbalance—between the fish, the rearing environment, pathogens, and farm management determine the occurrence and impact of clinical diseases. The global assessment of the factors related to disease impact is commonly referred to as disease burden. This assessment goes beyond the economic consequences of mortality and morbidity, encompassing additional economic factors related to...

The round sardinella (Sardinella aurita Valenciennes, 1847) is a common pelagic species in the NW Mediterranean, with a low economic value. To evaluate its potential as a resource, a comprehensive study including the nutritional status (proximate and fatty acid composition), zoonotic parasites and heavy metals of fish captured off the coast of Barcelona (NW Mediterranean) was carried out. Thus, 200 specimens were seasonally ca...

The gross pathology and the histopathological alterations identified in juvenile specimens of the European hake ( Merluccius merluccius ), one of the most important target species of commercial fisheries in the northwest Mediterranean, are described. A qualitative and semi‐quantitative histological approach was performed in specimens from 2007 and 2019. Prevalence and mean intensity of parasites and histopathological changes w...

The use of bioacoustic methods to address sea lice infestation in salmonid farming is a promising innovative method but implies an exposure to sound that could affect the fish. An assessment of the effects of these techniques related to the salmon’s welfare is presented here. The fish were repeatedly exposed to 350 Hz and 500 Hz tones in three- to four-hour exposure sessions, reaching received sound pressure levels of 140 to 1...

Senegalese sole was one of the earliest identified candidate species with high potential for aquaculture diversification in the south of Europe. Its culture has been possible, and commercially attempted, for several decades, but intensive production has been slow to take off. This has been explained mostly by serious disease problems, high mortality at weaning, variable growth and poor juvenile quality. However, a strong and s...