The Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
Environment, Ecology, and Energy Program, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
PLoS One. 2020 Mar 12;15(3):e0229512. doi: 10.1371/journal.pone.0229512. eCollection 2020.
Seafood mislabeling occurs in a wide range of seafood products worldwide, resulting in public distrust, economic fraud, and health risks for consumers. We quantified the extent of shrimp mislabeling in coastal and inland North Carolina. We used standard DNA barcoding procedures to determine the species identity of 106 shrimp sold as "local" by 60 vendors across North Carolina. Thirty-four percent of the purchased shrimp was mislabeled, and surprisingly the percentage did not differ significantly between coastal and inland counties. One third of product incorrectly marketed as "local" was in fact whiteleg shrimp: an imported and globally farmed species native to the eastern Pacific, not found in North Carolina waters. In addition to the negative ecosystem consequences of shrimp farming (e.g., the loss of mangrove forests and the coastal buffering they provide), North Carolina fishers-as with local fishers elsewhere-are negatively impacted when vendors label farmed, frozen, and imported shrimp as local, fresh, and wild-caught.
海鲜产品在全球范围内存在广泛的标签混淆问题，这导致了公众的不信任、经济欺诈以及消费者的健康风险。我们定量评估了北卡罗来纳州沿海和内陆地区虾类的标签混淆程度。我们使用标准的 DNA 条码程序，对北卡罗来纳州 60 家供应商销售的 106 种被标记为“本地”的虾进行了物种鉴定。购买的虾中有 34%被错误标记，令人惊讶的是，沿海和内陆县之间的百分比没有显著差异。三分之一被错误标记为“本地”的产品实际上是白对虾：一种原产于东太平洋的进口和全球养殖的物种，在北卡罗来纳州水域中并不存在。除了虾养殖的负面生态后果（例如红树林的丧失以及它们提供的沿海缓冲作用）之外，当供应商将养殖、冷冻和进口虾标记为本地、新鲜和野生捕捞时，北卡罗来纳州的渔民——与其他地方的当地渔民一样——也会受到负面影响。
