• 1. The freshwater pearl mussel, Margaritifera margaritifera, is a threatened species. One of the threats faced by this species is direct extermination by poachers, and therefore some researchers conceal information on the locations of pearl mussel habitats. For example, some researchers do not publish the names of the rivers where pearl mussels occur, whereas other researchers do.
• 2. Concealing the names of rivers containing pearl mussels makes them unknown not only to potential offenders but also to administrators, nature conservation practitioners, and ordinary citizens. As a result, no protection measures are undertaken, which is all the more regrettable as damage to pearl mussel habitats can occur accidentally.
• 3. Concealing details of the location of pearl mussel habitats in publications has an adverse impact on the work of specialists, as they do not have access to enough information to study and analyse the biology and distribution of these molluscs.
• 4. One river with pearl mussels in the Gulf of Finland was initially described anonymously (as ‘River B’). Unfortunately, the river was subject to severe human impact, and the largest aggregation of pearl mussels was almost exterminated in the process of constructing a new electric supply line.
• 5. Concealing information on pearl mussel habitats in the Russian section of the Baltic Sea basin was also shown to have been a poor decision. Although the threat from potential poachers was insignificant because of the low commercial value of pearl mussels, the authorities remained uninformed about the existence of valuable habitats.
• 6. The question of whether the locations of pearl mussel habitats should be concealed or revealed in scientific publications does not have an unambiguous answer and should be considered on a case‐to‐case basis; however, the cases for which disclosure is reasonable seem to be more numerous.

中文翻译：

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出版物对淡水珍珠贻贝保护的影响：隐藏还是揭示受威胁生境的位置？

• 1.淡水珍珠贻贝，玛格丽塔玛格丽塔（Margaritifera）是一种受威胁物种。该物种面临的威胁之一是偷猎者的直接灭绝，因此一些研究人员隐瞒了珍珠贻贝栖息地的位置信息。例如，一些研究人员没有公布珍珠贻贝发生的河流的名称，而其他研究人员则公布了。
• 2.隐藏含有贻贝的河流的名称使它们不仅对潜在的犯罪者而且对管理人员，自然保护从业人员和普通公民都是未知的。结果，没有采取任何保护措施，更令人遗憾的是，珍珠贻贝栖息地可能会意外遭到破坏。
• 3.隐藏出版物中珍珠贻贝栖息地位置的详细信息会对专家的工作产生不利影响，因为他们无法获得足够的信息来研究和分析这些软体动物的生物学和分布。
• 4.最初匿名地描述了芬兰湾的一条装有贻贝的河流（称为“ B河”）。不幸的是，这条河受到了严重的人类影响，在建造一条新的供电线路的过程中，珍珠贻贝的最大聚集几乎被消灭了。
• 5.隐藏波罗的海盆地俄罗斯部分珍珠贻贝栖息地的信息也被证明是一个错误的决定。尽管由于贻贝的商业价值低，潜在偷猎者的威胁微不足道，但当局仍不了解有价值的栖息地的存在。
• 6.关于是否应在科学出版物中隐藏或揭示珍珠贻贝栖息地的位置的问题没有明确的答案，应根据具体情况加以考虑；但是，合理披露的案件似乎更多。