L'Imposex: el seu estudi i evolució en Bolinus brandaris Authors Maria José Amor Montserrat Ramón Herrero Alexandra Richter Mercè Durfort i Coll Abstract The present work represent a case study of the evolution of the imposex phenomena in the Mediterranean sea. The presence of males secondary sexual characters in females caused by the TBT pollution of the sea water has been monitored during the last 11 years in the gastropod Bolinus brandaris, a commercially exploited neogastropod species with a distribution area extending along the whole Mediterranean sea and nearby Eastern Atlantic coast. The provenience of the monitored animals were from St. Carles de la Ràpita (Tarragona, Northeast coast of Spain). During the first seven years, females with imposex made up more than 90% of the population, in spite of the application of restrictive laws prohibiting the extensive usage of antifouling paints with TBT. The results of the study reveal the existence of some differences among functional males and imposex affected females in the histology and ultrastructural organization of the penis and vas deferent. The results also show a trend in the decrease of the percentage of females exhibiting imposex in the last three years. Besides, available data from the present year point to its almost complete disappearance in St. Carles de la Ràpita. Downloads Download data is not yet available. Downloads Text complet (Català) Published 2009-04-24 Issue 59, 2008 : Biologia de la reproducció / Mercè Durfort i Francesca Vidal, editores Section Articles License The intellectual property of the articles belongs to the respective authors. At the time of submitting the articles to Treballs de la Societat Catalana de Biologia, authors accept the following terms: — Authors assign to the SCB (a subsidiary of the Institut d’Estudis Catalans) the rights of reproduction, public communication (including communication through social networks) and distribution of the articles submitted for publication to Treballs de la Societat Catalana de Biologia, in any form and medium, including digital platforms. The Publications Committee reserves the right to accept or refuse submitted articles and the right to make any editorial changes it deems appropriate. If the suggested changes are accepted by authors, they should re-submit the article with such changes. — Authors answer to the SCB for the authorship and originality of submitted articles. In other words, authors assure that submitted articles do not contain fragments of works by other authors or fragments of their own previously published works; that the content of articles is original, and that the copyright of third parties is not infringed upon. Authors accept this responsibility and undertake to hold harmless the SCB for any loss or damage resulting from non-compliance with this obligation. Furthermore, they should include a statement in articles submitted to the journal regarding their responsibility for the content of the articles. — Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles, and they should moreover ensure that images, videos, etc., have been created with the consent of the individuals appearing in them, and that material belonging to third parties is clearly identified and acknowledged as such within the text. Likewise, authors should provide the respective consents and authorisations to the SCB when submitting articles. — The SCB is exempt from any liability arising from the possible infringement of intellectual property rights by authors. In all cases, it undertakes to publish corrections, clarifications, retractions and apologies, if necessary. — Unless otherwise stated in the text or in the graphic material, the contents published in the journal are subject to an Attribution - NonCommercial - NoDerivs 3.0 Spain (by-nc-nd) license from Creative Commons, the full text of which may be consulted at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Therefore, the general public is authorised to reproduce, distribute and communicate articles as long as their authorship and publishing entity are acknowledged, and no commercial use is made of them nor derivative work produced from them. — The journal is not responsible for the ideas and opinions expressed by the authors of published articles.