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    "identifier": "83604ae9-6582-45ee-8936-1357881842f8",
    "url": "http://portal.medin.org.uk/?details&tpc=83604ae9-6582-45ee-8936-1357881842f8",
    "name": "2013-2014, Caloo Ecological Services, NRP, Hywind Offshore Wind Farm, ESAS Seabird and Marine Mammal Surveys",
    "description": "The Technical Report within this series is concerned with the environmental studies undertaken to inform the EIA and HRA of seabirds and marine mammals for the proposed Hywind Scotland Pilot Park Project, a demonstration floating offshore windfarm being progressed by Hywind Scotland Limited (HSL). The report presents\r\n results for the one-year programme of boat-based baseline European Seabirds at Sea (ESAS) surveys together with relevant context information on regularly occurring species.\r\n? The Survey Area covers 170.5 km2 and comprises the original Exclusivity Area buffered to 3 km. This area is covered by 23 parallel transects spaced 0.75 km apart and with a total length of 228 km. Surveys of all 23 transects took two days to complete, with alternate transects surveyed on one day and the other set of alternates on the other day. This regime meant that on each survey day the whole Survey Area was\r\ncovered.\r\n? The surveys were conducted following the ESAS method. This involves a team of two accredited surveyors on board a survey vessel collecting data on all birds and marine mammals seen in a 300 m wider survey corridor in a format that is suitable for distance sampling analysis.\r\n? Two survey days of effort (i.e. surveying each transect once) were scheduled at monthly intervals from June 2013 to May 2014. A total of 20 surveys (days) were undertaken over the year. Eight additional surveys were undertaken between July and September 2014 using the same survey design and methods.\r\n\r\nThese surveys are reported separately (Caloo 2014c (Annex 3 to Technical Report) however the results are used as additional evidence to characterise the ornithology of the Survey Area. Statistical analyses of the seabird data were undertaken by Caloo Ecological Services. These analyses are provided as Annexes to this Technical Report:\r\n? Annex 1 - Caloo 2014a. Distance sampling analyses of year 1 ESAS survey results for the Hywind Scotland Pilot Park;\r\n? Annex 2 - Caloo 2014b. Collision risk modelling with respect to seabirds for the Hywind Scotland Pilot Park;\r\n? Annex 3 - Caloo 2014c. Distance sampling analyses of additional (July \u2013 September 2014) ESAS survey results for the Hywind Scotland Pilot Park. In addition to the analyses presented in the above reports, Marine Scotland, SNH and JNCC requested some alternative analyses of the survey data based on the breeding seasons specified by SNH / JNCC. These analyses have been reported in the following standalone report:\r\n? Caloo 2014d. Alternative density, abundance and collision risk mortality estimates based upon breeding seasons as specified by SNH/JNCC for seabirds using the waters of the Buchan Deep off the Aberdeenshire coast for the period June 2013 to May 2014 in support of the Hywind Scotland Pilot Park project.\r\n\r\nSubstantial detail on data analysis and results is provided in these four reports, the essence of which is presented throughout the EIA. Where relevant, cross-references to tables have been used to aid the reader\u2019s interpretation of the assessment and underlying analytical output.",
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        "access: There will be no limitations when published on the Marine Data Exchange",
        "use: 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"
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    "temporalCoverage": "2013-06-08/2014-09-11",
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        "description": "The MEDIN portal contains information about 19551 marine datasets from over 600 UK organisations. Metadata are an enduring resource and contact details are publicly available for a long time. \r\n\t\tPlease contact us (enquiries@medin.org.uk) if you find your contact details on the MEDIN portal and do not consent to this. \r\n\t\tYou can now use our GitHub repository to report issues or access related documents. Metadata records are updated daily and were last updated 2026-05-07. Record deletion takes place weekly and the latest occurred 2026-05-03."
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