Valuable observational data were collected, from remote sea areas in the northeast Atlantic where cetacean observations are not routinely conducted. Marine mammal observations were carried out daily, over a 28 day period in July and August 2005, as part of a geophysical survey on MV Kommandor Jack for the Department of Trade and Industry's (now Department of Energy and Climate Change) Strategic Environmental Assessment SEA7 west of Scotland. This report describes exactly how and where the marine mammal observations were made. It also presents and summarises the 40 sightings that were made during the course of the survey.

A seabird and cetacean survey was conducted onboard RV Kommandor Jack in July 2002 as part of the Department of Trade and Industry's (now Department of Energy and Climate Change) Strategic Environmental Assessment (SEA4) of the Faroe Shetland Channel.

As part of the Department of Trade and Industry's (now Department of Energy and Climate Change) Strategic Environmental Assessment SEA7, a seabird and cetacean survey was undertaken. The track passed through the Firth of Clyde, the North Channel and the adjacent continental shelf before covering the Rockall Trough as far as the eastern margin of the Rockall Bank and the southern margins of Anton Dohrn Seamount. For much of the survey the weather was unseasonably poor and data was frequently collected in marginal conditions. At total of 7578 birds of 37 species were recorded. Of these 26 species were seabirds and the remainder were migrant passerines, hirundines and geese. Fulmars were the most abundant birds seen during the survey, followed by gannets and great shearwaters, which were recorded in unusually high numbers. The latter species may have been more abundant because of atypically strong westerly winds. Five species of cetacean were seen, with short-beaked common dolphins being the most abundant, followed by long-finned pilot whales and sperm whales. Other sightings included one blue shark and one sunfish. Seabird and cetacean densities were low in much of the study area but were elevated on the continental shelf, especially near the Stanton Bank, at the southern margins of the Anton Dohrn seamount and along the eastern margin of the Rockall Bank.

This report is a contribution to the Department of Trade and Industry's (now Department of Energy and Climate Change) Strategic Environmental Assessment SEA2. Eight marine mammal species occur regularly over large parts the North Sea: harbour seal, grey seal, harbour porpoise, bottlenose dolphin, white-beaked dolphin, Atlantic white-sided dolphin, killer whale and minke whale. A further 15 cetacean species and five pinniped species are reported less frequently in the region. This report describes the distribution and abundance of these mammals and their ecological importance. The harbour porpoise is the most numerous marine mammal in the North Sea, with a population estimated at 268,000 in summer 1994. The northern and central SEA2 areas are particularly important areas for the harbour porpoise. Marine mammals make use of sound for a variety of purposes: finding prey, detecting predators, communication and probably navigation. The offshore oil and gas industry generates underwater noise at every stage of the process: during exploration seismic surveys, drilling, production and decommissioning. The effects of these different sources of underwater noise on marine mammals are discussed. The use of explosives for underwater cutting and demolition during the decommissioning of platforms and installations may pose a serious threat to some marine mammals. The effects of pollution on seals and cetaceans are discussed, including the effects of oil spills. Large whales can be killed by being struck by ships; increased shipping traffic in an area would increase this threat.

This report is a contribution to the Strategic Environmental Assessment (SEA4) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). The report identifies coastal and near-shore conservation sites within the SEA4 area which are protected by international, national and local conservation designations as well as describing the sites and reasons for their protected status. At the northern extremity of Britain, the SEA4 area combines very productive waters with spectacular and distinctive coastal scenery. The combination of rich food sources and relative lack of disturbance make it host to abundant bird populations, including rare species not found elsewhere in the United Kingdom. Among the conservation sites are sea inlets, mud and sand flats, lagoons, salt marshes, sand dunes, shingle, sea cliffs, fresh water bogs and marshes, heath, scrub and grassland.

This report is a contribution to the Strategic Environmental Assessment (SEA7) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). The coastal and marine areas within the SEA 7 boundary are very extensive, longer and more varied than any other SEA area. Stretching westwards into the Atlantic Ocean, the region includes a very large area of relatively shallow continental shelf. There are also a few uninhabited islands to the west of the Outer Hebrides, including St. Kilda with its multiple conservation designations. The Outer Hebrides form one of the oldest geological provinces in Europe and is mainly based on Lewisian Gneiss. A major geological fault runs parallel to the east coast (The Minch coast), whereas the western side is normally a continuation of the continental shelf. These features are prominent in the southern islands, notably the Uists. Harris and Lewis present different topographies which include the high massif with Clisham at its centre and the low peat-covered plateaux of most of Lewis to the north. The east Minch coastline is generally steeper and falls to deeper inshore waters. It is also characterised by several transverse sea lochs which resemble similar fjords on the west mainland coast. Although the legacy of glacial processes are complex, the main effect has been to over-deepen sea lochs and inter-island straits (e.g. Sound of Harris) and deposit great masses of glacial debris, especially sands, on the shallow continental shelf to the west where, with the prevalence of strong onshore Atlantic waves and winds, vast beaches were formed in this post glacial period. Large quantities of organic sand (crushed shells) were added to this volume; as a consequence some of the larger beach and sand dune systems in Britain are found along the west coast. These extensive blown sand systems are called machairs, and provide a unique series of environmental and ecological systems with very high conservational status at European and international levels. The west coast of the Outer Hebrides contains many sites of archaeological interest and retains a distinctive cultural landscape as one of the last strongholds of a historical system of land tenure and working found nowhere else in Europe. This way of life is considered to be one of the prime reasons for the creation and maintenance of many of the significant conservational attributes of the Outer Hebrides.

This report is a contribution to the Strategic Environmental Assessment (SEA5) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). Eight marine mammal species are known to occur regularly in this area: grey seal, harbour seal, harbour porpoise, white-beaked dolphin, bottlenose dolphin, Atlantic white-sided dolphin, killer whale, and minke whale. Long-finned pilot whales and Risso's dolphins are regularly seen in waters around Shetland. There are occasional at-sea records of at least a further five cetacean species (humpback whale, fin whale, sperm whale, striped dolphin and short-beaked common dolphin) and four pinniped species (hooded seal, bearded seal, ringed seal and walrus).

This report is a contribution to the Strategic Environmental Assessment (SEA6) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). An integral element of any environmental assessment for offshore oil and gas development, and for possible nearshore renewable energy proposals, is a review of potential sites of conservational importance within the region of interest. For the purpose of SEA 6, this is especially important given the scale of the area (over 400 km from the tip of SW Wales to the Mull of Kintyre); its division into five separate states/provinces, each with their own nature conservation authorities and some differences in nature conservation legislation; the fact that it includes a very considerable length of coastal zone and that a very large proportion of those coasts are designated as nature conservation sites. The report identifies and locates coastal and nearshore sites within the SEA 6 area which are protected by international, national and local conservation designations. The sites are briefly described and the reasons for their protected status are given. For internationally important sites, summary information describing the main features of the site is provided and there is also an assessment of the vulnerability of the site and any relevant management issues. The ordering of the national sites does not imply any formal ranking, but is a relative judgement of their conservation importance.

This report is a contribution to the Strategic Environmental Assessment (SEA7) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). Twenty-one cetacean species have been recorded in the SEA7 region. Of these, ten species are known to occur regularly: harbour porpoise, bottlenose dolphin, short-beaked common dolphin, Risso's dolphin, white-beaked dolphin, Atlantic white-sided dolphin, long-finned pilot whale, killer whale, sperm whale and minke whale. Five further species, though not very often recorded, and primarily associated with deep water, probably also occur regularly: striped dolphins, fin whales, northern bottlenose whales, Cuvier's beaked whale and Sowerby's beaked whale. There are occasional at-sea records of a further 6 species: Sei whale, humpback whale, blue whale, northern right whale and false killer whale. Pygmy sperm whales and at least three further species of beaked whale might also be expected in the general area on occasion. In this report, each of the more abundant species is briefly described with particular reference to its distribution and abundance in the SEA-7 area.