Using an exploratory mobile app intervention, we investigated the effectiveness of messages focusing on environmental awareness and/or environmental skills to promote sustainable seafood choices. In this study, 348 volunteers participated in a 10-week intervention. Depending on the experimental condition, participants read messages for 36 days: a) environmental awareness messages (i.e., information about the environmental impact of seafood production); b) environmental skills messages (i.e., information focusing on how to recognise and prepare sustainable seafood); c) combined messages (i.e., information that combined the previous two messages); d) no messages. We compared the effects of the conditions on attitudes towards purchasing sustainable seafood, perceived behavioural control over purchasing sustainable seafood, seafood choice, and self-reported purchase. After the intervention, participants who received the environmental awareness messages reported more positive attitudes and higher perceived behavioural control. These improvements remained stable during the follow-up period (1 month after the end of the intervention). The environmental skills messages led to an increase in positive attitudes, perceived behavioural control, and purchasing behaviour, although the purchase of sustainable seafood started to decrease at follow-up. The combined messages improved attitudes and perceived behavioural control. In addition, participants in this condition purchased more sustainable seafood at follow-up. These results contribute to our understanding of how messages can be designed to promote sustainable seafood choices.

中文翻译：

---

促进可持续海鲜选择的环境信息：探索性移动应用程序干预

通过探索性移动应用程序干预，我们调查了注重环境意识和/或环境技能的信息对于促进可持续海鲜选择的有效性。在这项研究中，348 名志愿者参与了为期 10 周的干预。根据实验条件，参与者阅读 36 天的信息： a) 环境意识信息（即有关海鲜生产对环境影响的信息）；b) 环境技能信息（即重点关注如何识别和准备可持续海鲜的信息）；c) 组合消息（即组合前两个消息的信息）；d) 没有消息。我们比较了这些条件对购买可持续海鲜的态度、对购买可持续海鲜的感知行为控制、海鲜选择和自我报告购买的影响。干预后，收到环境意识信息的参与者表现出更积极的态度和更高的行为控制能力。这些改善在随访期间（干预结束后 1 个月）保持稳定。环境技能信息导致积极态度、感知行为控制和购买行为的增加，尽管后续对可持续海鲜的购买开始减少。综合信息改善了态度和感知行为控制。此外，这种情况下的参与者在后续购买了更可持续的海鲜。这些结果有助于我们了解如何设计信息来促进可持续的海鲜选择。