Globally, shellfish reefs have experienced unprecedented declines from historical levels, imperiling the surrounding ecosystems and the services they provide. Shellfish conservation and restoration projects have emerged to combat and reverse this decline but are hindered by a scattered knowledge base and a lack of evidence-based best practice. To address this concern, we conducted a systematic review of English-language peer-reviewed articles studying the impacts of conservation-based actions on reef-building bivalves. A comprehensive search identified 281 relevant articles for the review. Articles were then categorized to establish the temporal and geographic extent of shellfish reef conservation research, quantify collaboration within the field, and develop a systematic map of the distribution of evidence across intervention and outcome categories. The results confirm a substantial increase in shellfish reef research with 72% of articles published since 2010. However, this evidence base is uneven, with 80% of research occurring in the United States and Northern Europe, 71% on only oysters, and 58% by only academia-affiliated authors. The systematic map of linkages and gaps also reveals disparities in the evidence base, as ecological interventions and outcomes are undertaken and measured at a far greater rate than social interventions and outcomes, despite evidence that social aspects are critical components of conservation work. To ensure future conservation practitioners have evidence that is relevant to the circumstances of their projects, this evidence base needs to be diversified and we offer recommendations on reprioritizations for future research as well as a comprehensive database of existing shellfish conservation papers.

中文翻译：

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保护贝类珊瑚礁——一项系统回顾揭示了扩大研究工作的必要性

在全球范围内，贝类珊瑚礁经历了史无前例的衰退，危及周围的生态系统及其提供的服务。贝类保护和恢复项目已经出现以对抗和扭转这种下降趋势，但由于知识库分散和缺乏循证最佳实践而受到阻碍。为了解决这个问题，我们对研究基于保护的行动对造礁双壳类动物的影响的英语同行评审文章进行了系统审查。全面搜索确定了 281 篇相关文章进行审查。然后对文章进行分类，以确定贝类礁体保护研究的时间和地理范围，量化该领域内的合作，并开发跨干预和结果类别的证据分布的系统地图。结果证实贝类礁体研究大幅增加，自 2010 年以来发表的文章占 72%。 然而，这一证据基础不均衡，80% 的研究发生在美国和北欧，71% 仅针对牡蛎，58%仅由学术界附属作者撰写。尽管有证据表明社会方面是保护工作的关键组成部分，但联系和差距的系统地图还揭示了证据基础上的差异，因为生态干预和结果的实施和衡量速度远远高于社会干预和结果。为确保未来的保护从业者拥有与其项目环境相关的证据，