afsluitdijk aldeburgh algae amber amber road american association of port authorities amphidromic point amsterdam angles anglo-dutch wars anglo-japanese alliance antwerp archipelago arendal artificial dwelling hill atlantic ocean atlantic jackknife clam auk avalonia bbc baltic sea baltica batoidea battle of heligoland bight battle of jutland battle of trafalgar bedrock belgium birdwatching black-legged kittiwake blue mussel brackish water bremen bremerhaven brent crude british empire broad fourteens bruce gittings cambridge university press central powers clam cod colony common fisheries policy common dolphin continental shelf convention for the protection of the marine environment of the north-east atlantic convention on the continental shelf copepod coriolis effect cormorant cretaceous crimean war cromer crustacean delta works den helder denmark digital object identifier distilled beverage dogger bank dogger bank incident doggerland drainage basin dredging dundee dune dutch golden age earthquake east anglia east frisian islands eday eelgrass ekofisk oil field elbe england english channel english language epeiric sea erosion esbjerg estuary european marine energy centre eutrophication exclusive economic zone farne islands fathom felixstowe fertilizer first schleswig war firth firth of tay fishing in the north sea fjord flamingo flood control in the netherlands food chain four days battle fowlsheugh france franco-prussian war freshwater frisia frisian islands gannet gazetteer for scotland geestland geirangerfjord geographic coordinate system german bight germany glacier glomma graben grand fleet gravel great auk great yarmouth grote mandrenke gulf stream gull haddock hamburg hanseatic league hanstholm heligoland herring high middle ages high seas fleet history of the north sea horns rev humber ijsselmeer ice sheet impact crater international council for the exploration of the sea international court of justice invertebrate irish sea jadebusen joint nature conservation committee jurassic jutes jutland peninsula kaiserliche marine kattegat kelp kiel canal kilometre land reclamation landslide laurentia league of armed neutrality lindesnes lindisfarne list of north sea ports list of busiest container ports list of languages of the north sea list of oil and gas fields of the north sea lobster london long forties longships loon lost city mackerel maerl marginal sea maritime and coastguard agency mebibyte mesozoic metre meuse river middelzee middle ages migration period mile moraine moray firth mudflat mudflat hiking mussel nato national academy of sciences national underwater and marine agency natural gas nature reserve nautical chart nautical mile netherlands norfolk north frisian islands north sea canal north sea commission north sea oil norway norway lobster norwegian current norwegian sea norwegian trench ocean current oceanic trench oosterscheldekering orkney oslofjord overfishing oyster pacific oyster paleozoic parts-per notation pax britannica pelican perfume petrel phillips petroleum company pipeline transport piper alpha plaice pollution port of bruges-zeebrugge port of felixstowe portable document format ports of the baltic sea pouting prawn principality of sealand rabbitfish razorbill recreational diving renewable energy in scotland rhine ridge rift valley right whale river earn river forth river ness river spey river tay river tees river tweed river tyne river wear rogaland roman empire roman conquest of britain roman departure from britain rotterdam royal society of edinburgh rungholt russo-japanese war salinity salmon salt sand sandstone saxons scandinavia scheldt scotland scottish government scottish natural heritage scroby sands wind farm sea ice seabed second battle of heligoland bight second schleswig war sedimentary basin shad shetland shrimp silver pit silverpit crater skagerrak skate skerry slochteren sogn og fjordane sole southwold spain square kilometre statfjord oil field stavanger storegga slide storm tides of the north sea strait of dover stromness sturgeon subduction suffolk switzerland sylt talisman energy teesside tern territorial waters thalassotherapy thames barrier the new york times the wash tidal range tide tobacco tombolo tonne torpedo boat trawling triassic triple junction troll a platform tsunami united kingdom viking viking age vlieland wadden sea wadden sea national parks walrus walton-on-the-naze wave dragon wave power weir west frisian islands whiting wikimedia commons wiktionary william iii of england wind farm wind turbine wreck diving yorkshire ythan estuary zooplankton zuiderzee works