Microbial interactions as a key factor in marine fish larvae viability: A review of larval rearing challenges
This article reviews the hypothesis that detrimental interactions between marine fish larvae and microbes are a primary cause of low larval viability in aquaculture. It examines problems in larval rearing such as poor appetite, delayed feeding, diarrhea, suboptimal growth, stress sensitivity, and high mortality, along with poor reproducibility between replicated rearing tanks. The paper provides a comprehensive literature review on microbial management in larval rearing and offers recommendations for future research based on multiple approaches.
Key quotes
The problems in larval rearing are reflected in a large range of biological variables.
The appetite of larvae may be poor and the onset of feeding delayed, diarrhea may be present, growth may be suboptimal or stop at a sensitive developmental stage, animals can be sensitive to stress, and mortality can be high and rapid.
Another very important observation is the poor reproducibility between replicated rearing tanks, even when one egg batch is used.
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