Lake Victoria is the largest freshwater lake in Africa with significant social, ecological, and economic importance. In the face of declining fisheries, Tilapia cage culture was sought to bridge the demand gap and create employment opportunities. However, in a eutrophic lake with a large population dependent on it, fish farming should be supported by evidence-based decision-making. While used in systems elsewhere, existing tools will need adaption to address freshwater, context-specific chall...
Atlantic salmon (Salmo salar) farming has traditionally relied upon the inclusion of omega-3 long-chain polyunsaturated fatty acid (n-3 LC-PUFA), especially eicosapentaenoic (EPA; 20:5n-3) and docosahexaenoic (DHA; 22:6n-3) acids, supplied from the finite marine ingredients, fish oil and fish meal. However, sustainable aquafeeds, primarily comprised from terrestrial origin sources as alternatives, lack n-3 LC-PUFA, which can potentially result in some adverse effects such as growth or health ...
Fish farming is the fastest growing food production sector worldwide and now accounts for most human fish consumption. Expansion of finfish aquaculture to exposed offshore marine environments is appealing where additional sheltered areas are unavailable. While more energetic environments may reduce waste accumulation and parasite exposure, effects on fish health and wellbeing are largely speculative. The multiple stressors faced by fish on offshore farms may interact synergistically and incre...
Animal welfare assessments have struggled to investigate the emotional states of animals while focusing solely on available empirical evidence. Qualitative Behavioural Assessment (QBA) may provide insights into an animal's subjective experiences without compromising scientific rigor. Rather than assessing explicit, physical behaviours (i.e., what animals are doing, such as swimming or feeding), QBA describes and quantifies the overall expressive manner in which animals execute those behaviour...
Cleaner fish species have gained great importance in the control of sea lice, among them, lumpfish (Cyclopterus lumpus) has become one of the most popular. Lumpfish life cycle has been closed, and hatchery reproduction is now possible, however, current production is reliant on wild caught broodstock to meet the increasing demand. Selective breeding practices are called to play an important role in the successful breeding of most aquaculture species, including lumpfish. In this study, we anal...
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