Interactions between reproduction and immune systems in cultured fish: a novel research line at the ICM
Aquaculture provides ~53% of fish consumption compared to fisheries and it is estimated that by 2050 there will not be enough fish to supply world demand (Food and Agriculture Organization of the United Nations, FAO, 2018). One major problem for fish farmers is fish diseases because they can cause serious economic losses due to mortality. The principal cause of such outbreaks is usually the high rearing densities commonly used in intensive finfish aquaculture, which facilitate the transfer and spread of pathogens. Other aquaculture-related problems are based on the sex control due to the appearance of skewed sex ratios towards males, which are responsible to decrease the final productivity. The underlying process of this masculinization due to high temperature has been explained by epigenetic mechanisms occurred in the gonads. However, the relationship between epigenetics and the influence of other environmental factors such as density or infections have still not been documented. Here, it is presented the work performed in the last years at the Institute of Marine Sciences (ICM, CSIC) to better understand the interactions between the reproduction and the immune systems, a research field barely explored in fish. To perform this novel research line, modern genomic strategies have been performed (transcriptomics, epigenomics and metabolomics) which have allowed to identify markers that can help to improve breeding programs (e.g., selection of the more heat-resistant fish populations or high quality broodstocks)
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| Format: | trabajo de divulgación biblioteca |
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CSIC - Instituto de Ciencias del Mar (ICM)
2020-02-07
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| Online Access: | http://hdl.handle.net/10261/203843 |
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