One of the main strategies to implement the sustainability of aquaculture is by reducing its dependence on feed raw materials derived from wild marine resources, unsustainable land and freshwater use. To totally replace wild-caught fishmeal (FM), fish oil (FO) and soy protein (SP) in European sea...

The development of pathophysiological cardiac alterations in farmed salmonids is a recurrent and widespread welfare issue. Although the aetiology of such cardiac alterations is still unclear, several factors, including rearing temperature, selective breeding programs, and feeding strategies, could...

Fish tagging is an important tool for individual or group identification and is commonly used for biological, ecological and fisheries management studies. The key for ensuring the quality of these studies lies primarily in the tag design, which should be economically affordable, easy to handle and...

Infectious disease causes significant mortality in wild and farmed systems, threatening biodiversity, conservation and animal welfare, as well as food security. To mitigate impacts and inform policy, tools such as mathematical models and computer simulations are valuable for predicting the...

Mercury belongs among the highly hazardous substances present in the environment and represents a great health risk for many animals including predatory and piscivorous birds. The aim of this study was to assess the total mercury content in the main detoxifying organs (liver and kidney) and in the...

Visitors are a prominent feature in the lives of zoo animals, and their presence can cause a range of impacts on zoo animals (typically classed as positive, negative or neutral impacts), commonly referred to as the 'visitor effect'. This paper quantitatively collates the literature on the visitor...

Gene editing and gene silencing techniques have the potential to revolutionize our knowledge of biology and diseases of fish and other aquatic animals. By using such techniques, it is feasible to change the phenotype and modify cells, tissues and organs of animals in order to cure abnormalities and ...

This study evaluated the effects of live prey concentration (nauplii of Artemia sp.), water salinity, and weaning age on survival, growth, and stress resistance rate (Rs) of Piaractus brachypomus under larviculture in a recirculating aquaculture system (RAS). Larvae aged 6 days post-hatching (1.64...

After incidents of yersiniosis-induced mortality and reduced fish welfare shortly after sea transfer of Atlantic salmon at two Sinkaberg-Hansen locations, the bacteriophage product Custus®YRS was included in an extensive plan for disease control. Custus®YRS was used to control the infection...

Intestinal steatosis, called lipid malabsorption syndrome (LMS) in severe cases, is a common condition in farmed Atlantic salmon, associated with choline deficiency causing low lipid transport in enterocytes, excessive lipid accumulation, and increased mucosal weight. A previous dose-response study ...