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Marine hitchhikers: a preliminary study on invertebrates unintentionally transported via the international pet trade
NeoBiota ( IF 5.1 ) Pub Date : 2020-10-08 , DOI: 10.3897/neobiota.61.57682
Jiří Patoka , Romanus E. Prabowo , Miloslav Petrtýl , Julian D. Reynolds , Pavlína Kuříková , Brigitta P. D. Zámečníková-Wanma , Lukáš Kalous

The pet trade in aquatic organisms is a significant source of non-indigenous species introductions. In comparison with ornamental animals, unintentionally transported invertebrate assemblages are easily overlooked by traders and keepers. Moreover, hitchhiking species detection and identification is difficult even for experts. The densities of “hitchhikers” in aquaria may be relatively higher than those in the wild. These phenomena are known in freshwater aquaria but poorly studied in marine ones. We found 17 species of non-ornamental marine invertebrates in one of the leading importers of aquarium species in the Czech Republic in November 2017. The set comprised six gastropods, two bivalves, three cnidarians, two echinoderms, two crustaceans, and two polychaete worms. In one case, a symbiont was also detected, associated with the host “hitchhiker”. No “live rocks” are traded by the surveyed wholesaler. Thus, the found animals were not imported together with this item as larvae or eggs. Contrary to the transport of targeted ornamental species, it is clear that transport of “hitchhikers” is occurring despite standard legislative regulations and should be brought to the attention of conservationists, wildlife managers, policymakers and other stakeholders.

中文翻译:

海洋旅行者:对通过国际宠物贸易无意间运输的无脊椎动物的初步研究

水生生物的宠物贸易是非本地物种引进的重要来源。与观赏动物相比,商人和饲养者很容易忽视无意识运输的无脊椎动物组合。此外,即使对于专家来说,搭便车物种的检测和识别也很困难。水族箱中“旅行者”的密度可能比野外的密度高。这些现象在淡水水族馆中是已知的,但在海洋水族馆中却很少研究。我们于2017年11月在捷克一家领先的水族馆物种进口国中发现了17种非装饰性海洋无脊椎动物。该物种包括6个腹足动物,2个双壳类,3个刺胞动物,2个棘皮动物,2个甲壳动物和2个多poly科蠕虫。在一种情况下,还检测到与宿主“搭便车者”相关的共生体。被调查的批发商没有买卖“活石”。因此,发现的动物没有作为幼虫或卵与该物品一起被进口。与目标观赏物种的运输相反,很明显,尽管有标准的法律法规,“旅行者”的运输仍在发生,应提请保护主义者,野生动植物管理者,政策制定者和其他利益相关者注意。
更新日期:2020-10-08
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