Table 1 Summary of evaluations conducted under relevant physical and nutritional attributes of the commercial and human welfare in mussels affected by ocean acidification.
From: Linking social preferences and ocean acidification impacts in mussel aquaculture
Category | Attributes Measured | Impact on market and/or wellbeing | OA experimental results. | Attributes’ social valuation (%)* | Attributes’ WTP** | WTP for 250 g of mussels quality loss*** | Previous study | Previous study approach |
---|---|---|---|---|---|---|---|---|
Appearance | SHELL SIZE | impact on marketability, consumer election and buyer rejections | not tested | shell size: valued by 53,42% of respondents. | Shell size US$ 0.25 | From Baseline product to shell size loss product: US$10.04 ->US$9.81 | Adams et al., 201176 | Growers perception (Slightly Economic) Consumer attitude (Social) Variability on appearance (Biological) |
MEAT COLOR | impact on marketability, consumer election and buyer rejections | not tested | meat color: valued by 57,90% of respondents. | Color of the meat US$ 1.22 | From shell size loss product to color meat loss product: US$ 9.81 -> US$8.73 | |||
SHELL COLOR | impact on marketability, consumer election and buyer rejections | negative | not decolotated shell color: valued by 73,43% of respondents. | Color of the shell US$ 3.78 | From color meat loss product to color shell loss product US$ 8.73 -> US$5.75 | |||
Nutritional Characteristics | OMEGA-3 | impact on marketability, consumer election and buyer rejections/ Vascular benefits, lower triglyerides, cardiac filling and myocardial efficiency, inflammation, thrombosis, and arrhythmia | negative | nutritional characteristics: valued by 61.65% of respondents. | nutritional characteristics US$ 1.39 | From color shell loss product to nutritional characteristics loss product: US$ 5.75 -> US$4.79 | Benefits on human health (Biological) Effect on human health (Biological) | |
EPA & DHA | impact on marketability, consumer election and buyer rejections/ reduced risk of cardiovascular events, diabetes mellitus, inhibiting growth of tumor cells, antiinflammatory activity, essential for fetal development | neutral | Benefits on human health (Biological) Benefits on human health (Biological) | |||||
VIT B12 | impact on marketability, consumer election and buyer rejections/ Essential for metabolism of fats and carbohydrates and the synthesis of proteins | negative | Importance in metabolism (Biological) Benefits in human health (Biological) | |||||
PROTEIN | impact on marketability, consumer election and buyer rejection/ proteins are highly digestible and have a high biological value | negative | Tacon and Metian, 201380 | Human nutrition (Biological) |