Nekhoroshkov Pavel, Zinicovscaia Inga, Nikolayev Dmitry, Lychagina Tatiana, Pakhnevich Alexey, Yushin Nikita, Bezuidenhout Jacques
Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia.
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Bucharest, Romania.
Biology (Basel). 2021 Oct 25;10(11):1093. doi: 10.3390/biology10111093.
A both wild and farmed mussels in natural conditions, anthropogenic inputs are usually reflected in the increase of the content of specific elements. To determine the possible effect of the elemental patterns of farmed and wild mussels () collected in the Saldanha Bay area (South Africa) on the crystallographic texture of the shells, the content of 20 elements in shells and 24 in the soft tissue of mussels was determined by neutron activation analysis. The crystallographic texture of mussel shells was analyzed using time-of-flight neutron diffraction. The wild mussels from open ocean site live in stressful natural conditions and contain higher amounts of the majority of determined elements in comparison with mussels farmed in closed water areas with anthropogenic loadings. The changes between the maximums of the same pole figures of the three samples are in the range of variability identified for the genus . The content of Cl, Sr, and I was the highest in mussels from the open ocean site, which is reflected by the lowest mass/length ratio. The determined crystallographic textures of mussels are relatively stable as shown in the analyzed pole figures despite the concentrations of Na, Mg, Cl, Br, Sr, and I in shells, which significantly differ for wild and farmed mussels. The stability of the crystallographic texture that we observed suggests that it can be used as a reference model, where if a very different texture is determined, increased attention to the ecological situation should be paid.
在自然条件下，无论是野生贻贝还是养殖贻贝，人为输入通常会反映在特定元素含量的增加上。为了确定在南非萨尔达尼亚湾地区采集的养殖和野生贻贝（）的元素模式对贝壳晶体结构的可能影响，通过中子活化分析测定了贻贝贝壳中20种元素和软组织中24种元素的含量。使用飞行时间中子衍射分析贻贝贝壳的晶体结构。与在有人为负荷的封闭水域养殖的贻贝相比，来自公海区域的野生贻贝生活在压力较大的自然条件下，所含大多数已测定元素的含量更高。三个样品相同极图最大值之间的变化在该属确定的变异性范围内。公海区域贻贝中氯、锶和碘的含量最高，这反映在最低的质量/长度比上。尽管野生和养殖贻贝贝壳中钠（Na）、镁（Mg）、氯（Cl）、溴（Br）、锶（Sr）和碘（I）的浓度存在显著差异，但在所分析的极图中显示，所测定的贻贝晶体结构相对稳定。我们观察到的晶体结构稳定性表明，它可以用作参考模型，如果确定了非常不同的结构，则应更加关注生态状况。
