Calcium concentrations in the lower Columbia River, USA , are generally sufficient to support invasive bivalve spread
Calcium concentrations in the lower Columbia River, USA , are generally sufficient to support invasive bivalve spread
复制标题
美国哥伦比亚河下游的钙浓度通常足以支持入侵双壳类的传播
DOI：
10.1002/rra.3804
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发表时间：
2021
影响因子：
2.2
通讯作者：
Nolan, Sean T.
中科院分区：
文献类型：
--
作者：
Bollens, Stephen M.;Harrison, John A.;Kramer, Marc G.;Rollwagen‐Bollens, Gretchen;Counihan, Timothy D.;Robb‐Chavez, Salvador B.;Nolan, Sean T.
溶解钙浓度 [Ca2+] 被认为是限制斑马 (Dreissena polymorpha) 和斑驴 (Dreissena bugensis) 贻贝等侵入性双壳类动物繁殖和传播的主要因素。我们在 2018 年 6 月至 2020 年 3 月期间测量了美国哥伦比亚河下游约 100 公里沿线采集的 168 个水样中的 [Ca2+]。我们发现，夏季/秋季期间，[Ca2+] 的范围为 13 至 18 mg L−1，冬季/春季期间为 5 至 22 mg L−1。先前的研究表明[Ca2+] < 12 mg L−1可能会限制侵入性双壳类动物的建立和传播。因此，我们的结果表明，哥伦比亚河下游的大部分地区都有足够的 Ca2+ 来支持入侵性德莱森贻贝的建立，这些贻贝可能会与已经广泛分布和丰富的亚洲蛤（河蚬）一起成为已经受到严重入侵的哥伦比亚河生态系统的最新入侵者。这些新数据提供了哥伦比亚河迄今为止采样不足的地区的重要测量结果，对入侵双壳类的传播以及本地物种和生态系统的保护和管理具有重要意义。
Dissolved calcium concentration [Ca2+] is thought to be a major factor limiting the establishment and thus the spread of invasive bivalves such as zebra (Dreissena polymorpha) and quagga (Dreissena bugensis) mussels. We measured [Ca2+] in 168 water samples collected along ~100 river‐km of the lower Columbia River, USA, between June 2018 and March 2020. We found [Ca2+] to range from 13 to 18 mg L−1during summer/fall and 5 to 22 mg L−1during the winter/spring. Previous research indicates that [Ca2+] < 12 mg L−1are likely to limit the establishment and spread of invasive bivalves. Thus, our results indicate that there is sufficient Ca2+in most locations in the lower Columbia River to support the establishment of invasive dreissenid mussels, which could join the already widespread and abundant Asian clam (Corbicula fluminea) as the newest invader to an already heavily invaded Columbia River ecosystem. These new data provide important measurements from a heretofore undersampled region of the Columbia River and have important implications for the spread of invasive bivalves and, by extension, the conservation and management of native species and ecosystems.