Which fish are expected to meet the nutritional needs of mankind in the future?

Journal:
Bapu Vaitla, David Collar, Matthew R. Smith, Samuel S. Myers, Benjamin L. Rice, D. Golden
Published: 2018/09/25
Digital Identification Number: 10.1038/s41467-018-06199-w
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Nature-Communication Paper
describes an approach to under-
fish. To date, only a small proportion of marine fish are known to have nutrients. The study found that spoke finfish may be expected to meet future nutritional needs.fish can provide essential dietary compounds such as protein, fat and various vitamins, but the content of these compounds varies greatly from fish to fish and the potential edible value of humans. However, the researchers tested only a small number of fish for nutrient levels, in part because of the high cost of testing.
Bapu Vaitla of Harvard University and colleagues looked at
's well-documented spoke finfish and found that the
authors used evolutionary historical data and fish-to-fish relationships, as well as other variables such as habitat preferences, geographic distribution, to predict the nutritional content of about
other under-studied spoke finfish.
predicts that
may be higher, although the researchers tested the protein content of only one fish in these subjects., however, the authors caution that the findings should not be used to encourage commercial use of newly discovered fish, but to tell people which fish needs further research on its nutritional value. These projections may be important or significant for developing countries that are already suffering from malnutrition and have limited capacity for large-scale testing.
summary: Human food and nutrition security is dependent on marine ecosystems by overfishing, climate change, and other processes. The consequences on human nutritional status are uncertain, in part because current methods of analyzing fish nutrient content are expensive. Here, we evaluate the possibility of predicting nutrient content of ray-finned fishes using existing phylogenetic and life history information. We focus on nutrients for which fish are important sources: protein, total fat, omega-3 and omega-6 fatty acids, iron, zinc, vitamin A, vitamin B12, and vitamin D. Our results show that life history traits are weak predictors of species nutrient content, but phylogenetic relatedness is associated with similar nutrient profiles. Further, we develop a method for predicting the nutrient content of 7500+ species based on phylogenetic relationships to species with known nutrient content. Our approach is a cost-effective means for estimating potential changes in human nutrient intake associated with altered access to ray-finned fishes.
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