b236114f-0dbd-4163-a2a5-9e8d29d854f9 English series series 2026-03-10T15:00:32 MEDIN 3.1.2 biota Bird behaviour SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Bird reproduction SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Pre-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Agreement for Lease Area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Species distribution GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision unknown 2022-03-16T00:00:00 2025-07-29T23:00:00 -4.7155 -4.7155 53.2942 53.2942 TCE-3928 Marine Data Exchange 2022-2025, RSPB, Marine Characterisation Research Project, Colony counts (WP6) Colony counts (WP6) 2024-12-15T00:00:00 creation 2025-01-16T16:11:40 publication 2023-12-18T00:00:00 revision English This data series was collected for the Marine Characterisation project (MCRP) which forms part of the Morlais tidal energy project, managed by Menter Môn and funded by the European Regional Development Fund and The Crown Estate. These data focus on Guillemot and Razorbill which hunt fish by diving. We estimate current colony size and levels of breeding productivity, along with describing historical patterns of abundance change at South Stack and nearby colonies. The inshore waters around South Stack breeding seabird colony are the site of a tidal stream power development. Impacts on biodiversity are possible and baseline monitoring has taken place against which to compare data in the future. Access to the MCRP data is strictly subject to the MCRP Data Terms of Use. Please ensure that you read and understand the Terms of Use prior to using any of the data as you will be bound to comply with the same. The MCRP Terms of Use are the prevailing Terms of Use and supersede that of Marine Data Exchange Terms of Use in relation to MCRP data. There will be no limitations when published on the Marine Data Exchange https://www.marinedataexchange.co.uk/content/info/terms-of-use otherRestrictions Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use Once published, there will be no constraints on access and use. Data must be used in accordance with the Marine Data Exchanges Terms of Use which can be found on the website. otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian Researcher Researcher Royal Society for the Protection of Birds (HQ) dassh.enquiries@mba.ac.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Menter Môn enquiries@mentermon.com owner notPlanned Image https://www.marinedataexchange.co.uk/details/TCE-3928/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08T00:00:00 publication Conformity with the Commission Regulation (EU) No 1089/2010 was either not relevant to this dataset or not a requirement of the Marine Data Exchange for the creation and submission of this dataset ; therefore, conformity has not been assessed and cannot be declared False Image 2025-11-27 revision This series has been Quality Assured so that it is compliant with the aforementioned MEDIN Guidelines and thus contains the mandatory components. In some instances, this compliance will not be feasible. True series In addition to standard June colony counts, counts of individuals in the same sectors were also carried out bimonthly from 01 April until 15 July each year from the same viewpoints and during suitable weather. This period covers all breeding activity and provide information on attendance during successive breeding stages. Monthly counts of individuals from the same viewpoints of colony sectors also took place to inform attendance outside the breeding season (August-March). Productivity estimates were based on the interpretation of repeated photographic surveys of selected ledges and nests across multiple colony sectors. Photographs were taken using a digital single lens reflex (DSLR) camera with 25 mega pixel resolution and 500 mm zoom lens. Our method for estimating breeding productivity differed between species. ABP Marine Environmental Research Ltd enquiries@abpmer.co.uk pointOfContact EPSG Geodetic Parameter Registry 2021-03-18 revision OSGB36 / British National Grid