Global warming and significant economic impacts on bivalve farming-Emerging need for mitigating the impacts
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Global warming and significant economic impacts on bivalve farming-Emerging need for mitigating the impacts

Global warming and significant economic impacts on bivalve farming-Emerging need for mitigating the impacts

Climate change is expected to heavily affect the Mediterranean marine ecosystems, resulting in significant declines in the resources and services they provide. Researchers highlight the need for mitigating the synergistic effects of several drivers of climate change including intensity of hot periods, pathogens, acidification, eutrophication, and pollution (Anestis et al., 2007; Feidantsis et al., 2020; Lattos et al. 2020). In addition, evolutionary processes might cause an emergence of new strains of pathogen species with unpredictable consequences to bivalve farming and economy. Theodorou et al. (2020) estimated that continuous closures of harvesting sites due to HABs, lasting more than 4 to 6 weeks during spring and summer could be catastrophic for the local economy. In this prism a recent investigation reported that the distribution and effects of harmful algal blooms are becoming more common, leading  to more frequent and prolonged disruptions of product supply, which can easily result in a loss of market share for the affected production area. Seed mortalities are another indirect effect of climate change, more common in Southern European production areas, but also Northern Europe has recently has been affected. Climate change is perceived as a major threat in Spain, Italy, France, Greece, Germany, Slovenia and Portugal (Avdelas et al., 2021).

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