Crabs of the British Isles (29,193 t), various swimming crabs (3,180 t), the spider crab "Maja squinado" (1,565 t), the shore crab or green crab "Carcinus maenas" (553 t) and the velvet crab "Necora puber" (193 t). Around 77% of the catch is landed in the United Kingdom, 19% in Ireland, 4% in the Channel Islands, and 1% in the Isle of Man. 62 species have been directly observed in the waters of the British Isles: Three deep-water species have also been recorded near the British Isles, and are likely to occur in the area. These are: Crabs of the British Isles Around 65 species
Politics in the British Isles Crown dependencies have been treated as part of the United Kingdom for British nationality law purposes. However, each dependency maintains local controls over housing and employment, with special rules applying to British citizens without specified connections to that dependency (as well as to non-British citizens). An important political movement in several countries in the Isles is British unionism, an ideology favouring the continued union of the United Kingdom. It is most prevalent in Scotland, England, and Northern Ireland. British unionism has close ties to British nationalism. Another movement is Loyalism, which manifests itself as loyalism to the British Crown. The