J. L. Carballo, J. A. Cruz-Barraza, C. Domínguez-Monge, C. Cano, P. J. López-González
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引用次数: 0
摘要
淡水入侵者威胁着自然生态系统和人类活动。在欧洲大陆水域(西班牙)首次发现了入侵淡水海绵 Heterorotula multidentata(Weltner,1895 年)。该物种原产于澳大利亚和新西兰,后从澳大利亚和新西兰传播到日本,被认为是入侵物种。在瓜达尔基维尔河和塔霍河流域的灌溉和饮用水系统的取水格栅中发现了该物种,影响了其水文功能。在瓜达尔基维尔河,还发现该物种生长在入侵贻贝 Dreissena polymorpha 上。要评估外来入侵生物的相关风险,就必须详细了解其分类状况和分布情况。形态学和分子评估证实,在西班牙发现的标本属于日本类型。此外,还提供了完整的形态描述以及该物种造成的污损问题。目前尚不清楚 H. multidentata 是如何到达西班牙的,但也不能排除由其他入侵淡水物种间接传播的可能性,因为 H. multidentata 已被发现污染入侵物种斑马贻贝。
First report of the invasive freshwater sponge Heterorotula multidentata (Weltner, 1895) in Europa: a latent threat for aquatic ecosystems?
Freshwater invaders threaten both natural ecosystems and human activities. An invasive freshwater sponge Heterorotula multidentata (Weltner, 1895) has been found for the first time in continental waters of Europe (Spain). It is a species native to Australia and New Zealand, from which it spread to Japan, being considered invasive. The species has been found in water intake grids of irrigation and drinking water systems in the basins of the Guadalquivir and Tajo rivers, affecting their hydrological functions. It has also been found growing on the invasive mussel Dreissena polymorpha in the Guadalquivir River. To assess the risks associated with invasive alien organisms, a detailed knowledge of their taxonomic status and distribution is necessary. A morphological and molecular evaluation confirmed that the specimens found in Spain belong to the Japanese type. A full morphological description and the fouling problems caused by the species are also provided. It is not yet clear how H. multidentata arrived at Spain, but indirect transport by other invasive freshwater species cannot be ruled out either, as H. multidentata has been found fouling the invasive species zebra mussel.
期刊介绍:
Limnology is a scientific journal published three times a year, in January, April, and August, by Springer in association with the Japanese Society of Limnology. The editors welcome original scientific contributions on physical, chemical, biological, or related research, including environmental issues, on any aspect of basic, theoretical, or applied limnology that present significant findings for the community of scholars. The journal publishes Rapid communications, Research papers, Review articles, Asia/Oceania reports, and Comments.
The aims and scope of Limnology are to publish scientific and/or technical papers in limnological sciences, to serve as a platform for information dissemination among scientists and practitioners, to enhance international links, and to contribute to the development of limnology.