4e592500-0213-46b3-84b9-0d32190fd3f0 eng series Ed Rollings Meygen Environment and Consents Manager Ed.Rollings@meygen.com pointOfContact 2015-05-07 MEDIN Discovery Profile 2.3.8 urn:ogc:def:crs:EPSG::32631 2012, Xodus, Inner Sound, Encounter Rate for Atlantic Salmon for the MeyGen Tidal Energy Project 2012-05-01 creation A-30596-S00-TECH-013 Final This document provides an initial assessment of the potential impacts of collision with turbines for migrating Atlantic salmon associated with the MeyGen Project and the turbines deployed during Phase 1 of the Project. The study investigates the encounter rate for 20 and 86 turbines. Crown Estate Scotland Quartermile Two, 2nd Floor, 2 Lister Square Edinburgh EH3 9GL enquiries@crownestatescotland.com custodian Xodus Group Xodus Environment 8 Garson Place Stromness Orkney KW16 3EE UK info@xodusgroup.com www.xodusgroup.com originator notPlanned Agreement for Lease Area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision 1 Consenting The Crown Estate Renewable Energy Development Phases 2012-05-15 revision 1 Marine Environmental Data and Information Network Marine Environmental Data and Information Network Fishery characterisation SeaDataNet Parameter Discovery Vocabulary 2014-10-09 revision 86 Commercial fishing Activity purpose categories 2011-08-27 revision 4 atlantic salmon Marisaurus Thesaurus 2010-09-22 revision 28 Pentland Firth SeaVoX salt and fresh water body gazetteer 2013-04-23 revision 14 Orkney BODC administrative region names 2014-10-01 revision 39 http://www.marinedataexchange.com/pages/terms-of-use.aspx restricted restricted http://www.marinedataexchange.com/pages/terms-of-use.aspx eng biota oceans -3.1641 -3.0882 58.6549 58.6737 2012-03-23 2012-05-01 Documents inapplicable https://www.marinedataexchange.co.uk/details/CES-117/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. series Due to a lack of data in relation to salmon ecology a number of assumptions have been made in undertaking this study. In most instances a precautionary assumption has been made in order to provide a reasonable estimate of the probability of an encounter taking place. The overriding assumptions made in undertaking this exercise were:  Salmon smolts from the east coast of Scotland migrate along the east coast and then through the Pentland Firth. A small proportion migrate through the Orkney Islands and the Fair Isle Channel. The major migratory routes taken by smolts is shown in Figure 2.3a;  Adults returning to spawn in east coast rivers also travel through the Pentland Firth and a small proportion migrate through the Orkney Islands and the Fair Isle Channel to reach their home rivers. The major migration routes taken by returning adults is shown in Figure 2.3b; and  There is some movement by adults east and west along the north coast (see Figure 2.2) and so some adult salmon returning to the north coast may also pass through the Pentland Firth. A number of other assumptions are made in relation to individual parameters and these are provided in more detail in relevant sections