Rapid assessment of marine non-native species in Irish marinas

Marine Non-Indigenous Species Dynamics in Time and Space within the Coastal Waters of the Republic of Ireland

“…These records are at present being incorporated in the database of the NBDC (https://biodiversityireland.ie/, accessed on 21 August 2023). Records of A. humilis, G. turuturu and B. simplex in Ireland have already been published based on individuals collected from surveys of Irish marinas in 2021 [19]. However, as records of these three species from surveys conducted in 2019, 2015 and 2019, respectively, are being first published here, the authors [19] were unaware that they were already recorded in previous years.…”

“…Records of A. humilis, G. turuturu and B. simplex in Ireland have already been published based on individuals collected from surveys of Irish marinas in 2021 [19]. However, as records of these three species from surveys conducted in 2019, 2015 and 2019, respectively, are being first published here, the authors [19] were unaware that they were already recorded in previous years. This 'publication time lag', from the point of discovery of new NIS to the time of publication of their records, can cause confusion in understanding temporal trends in NIS introduction.…”

“…First records of eight NIS in the Republic of Ireland, as reported in the present publication, indicating the year and locality where they were first recorded. * Species of which the presence in Ireland was already published on the basis of specimens found in Irish marinas in 2021 [19] but were not included in this review as they occurred post 2020. Further remarks are provided summarizing additional records of these species in alien species focused surveys for BIM.…”

“…As already referred to, recent discoveries of new Bryozoan NIS are likely partly due to the recruitment of additional bryozoan expertise to the monitoring community. Also, the dramatic increase from three new NIS discovered from 1991-2000, to twelve from 2011-2020 likely results from increased NIS-focused monitoring effort since 2000 (e.g., [18,19,[27][28][29][30]). Also, since 2010, Dutch import requirements for shellfish have necessitated additional and systematic NIS focused monitoring at Irish shellfish production sites and marinas by BIM thus enabling the development of further NIS management options for aquaculture.…”