unknown
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Long-finned pilot whales are very large and robust dolphins with an average body length of 6.7 m for males and 5.7 m for females. A low bushy blow is often visible and quite audible when in close proximity to the animals.The head is bulbous, with a very short and poorly defined beak.The bulbous melon is quite prominent in males and may overhang the beak. The dorsal fin is located slightly before the half-way point along the animal’s back and is large, with a very broad base and rounded at the tip. The pectoral fins are long,sickle-shaped and pointed at the tip. Long-finned pilot whales are black in colour with a white anchor-shaped throat patch and white belly patch. Some animals display a paler grey saddle patch behind the dorsal fin. Calves are lighter in colour and often appear to have a brown tinge. Long-finned pilot whales can be very active at the surface and commonly breach, tail slap and spy-hop. The data collected includes observations, relative abundance, search for and range of Pilot Whale (Globicephala melas) recorded from marine mammals observations on board ships of opportunity between 2005 and 2011.
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Data indicating the level of noise according to the strategic noise mapping of major road sources within areas with a population of at least 250,000 people (agglomerations) and along major traffic routes with more than 6,000,000 vehicle passages per year. Lden indicates a 24 hour annual average noise level with separate weightings for the evening and night periods. This data is a product of the strategic noise mapping analysis undertaken to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC).
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Undersea feature names - Portugal mainland and Azores archipelago.
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Data indicating the level of noise according to the strategic noise mapping of all rail sources within areas with a population of at least 250,000 people (agglomerations). Lnight indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700. This data is a product of the strategic noise mapping analysis undertaken to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC).
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Data indicating the level of noise according to the strategic noise mapping of all road sources within areas with a population of at least 100,000 people (agglomerations). Lden indicates a 24 hour annual average noise level with separate weightings for the evening and night periods. This data is a product of the strategic noise mapping analysis undertaken to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC).
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Department of Communications, Climate Action & Environment commissioned Offshore Renewable Energy Development Plan Strategic Environmental Assessment measurement of the tidal resource potential up to 5km from the shoreline.
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Rissos dolphins are very robust with an average adult body length of 3.2 m. At birth calves are grey (overall colour ranging from light to dark grey) with a paler underside.As they age, adult Risso’s become paler due to increasing levels of white scarring resulting from tooth rake marks gained during social interactions. Adult Rissos appear pale grey or largely white (depending on levels of scarring), particularly around the head. There is a white anchor-shaped patch on the chest and the underside of the belly is also typically white. The head is blunt and bulbous, with no evident beak.A distinct vertical cleft is evident on the front of the melon. A tall, dark and very prominent dorsal fin is located mid-way along the back. The tip may be rounded or pointed with a concave trailing edge. The pectoral fins are long, dark and sickle shaped. A small but noticeable blow may be seen at close range. Rissos dolphins can be very acrobatic at the surface with repetitive breaching and tail slapping. The data collected includes observations, relative abundance, search for and range of Rissos Dolphin (Grampus griseus) recorded from marine mammals observations on board ships of opportunity between 2005 and 2011.