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Title: Spatial distribution and temporal trends of soft-bottom marine benthic alien species collected during the period 1989-2008 in the Nervion estuary (southeastern Bay of Biscay)
Authors: Zorita, Izaskun; Solaun, Oihana; Borja, Angel; Franco, Javier.; Pascual, Marta; Muxika, Iñigo
Citation: JOURNAL OF SEA RESEARCH, 2013, 83, 104-110
Abstract: As the introduction of alien species represents one of the most important causes of biodiversity loss, it is crucial to study the distribution of alien species in order to control or eradicate their introduction and spread. Thus, the present study aimed to analyse the spatial distribution and temporal trends of soft-bottom marine benthic alien species collected during 20 years in the Nervion estuary, southeastern Bay of Biscay. Results indicated that, from a total of 6688 species records, 117 corresponded to alien species. Likewise, from a total of 742 different species identified, 23 species were classified as alien species. The two most frequently recorded alien species, Pseudopolydora paucibranchiata and Monocorophium acherusicum, appeared mainly at the intermediate part of the estuary that suffered historically an intense pollution. The presence and abundance of soft-bottom alien species became more evident since the mid-nineties, when the widening of the Bilbao Harbour occurred, together with a water quality improvement and the industry decline. Finally, although the identified alien species are considered as not invasive, the spread of alien species in the estuary might be considered as a threat. (C) 2013 Elsevier B.V. All rights reserved.
Keywords: Non-indigenous Species; Soft-bottom; Benthic Community; Spatial Distribution; Temporal Trend; Southeastern Biscay Bay; BIOLOGICAL INVASIONS; NORTHERN SPAIN; BIODIVERSITY; COMMUNITIES; SEDIMENTS; RECOVERY; BILBAO; INTRODUCTIONS; DIVERSITY; INCREASES
Issue Date: 2013
Type: Article
Language: English
DOI: 10.1016/j.seares.2013.04.009
ISSN: 1385-1101
E-ISSN: 1873-1414
Funder: Directorate of Biodiversity of the Basque Government
Water Consortium Bilbao Bizkaia
Basque Water Agency (URA)
programme Torres Quevedo (Ministry of Education and Science and European Social Fund)
Appears in Publication types:Artículos científicos

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