EHIC is a free card which gives access to state-provided healthcare during a temporary stay in any of the 28 EU countries as well as in Iceland, Liechtenstein, Norway and Switzerland. The card entitles holders to state-provided healthcare under the same conditions and at the same cost as citizens of that country. In some cases, but not all, treatment will be free.
Be aware though the EHIC is not an alternative to travel insurance as it does not cover private healthcare or return flights if you have to come home early for health reasons
The implications of Brexit for the fishing industry are highly uncertain. Prior to the introduction of a new Fisheries Bill, the House of Commons Library has produced a briefing paper entitled “Brexit: What next for UK fisheries?” on how negotiations with the EU and future UK Government policy may affect fishing in the UK. It is available here.
An earlier briefing paper by the Scottish Parliament Information Centre (SPICe) called Implications of leaving the EU: Fisheries examines issues for the Scottish sea fishing sector. It is available here.
As of today, (15th June 2017) data roaming charges for all travellers in the European Union have been abolished, as part of the wider project to create a Digital Single Market. The European Commission has produced a couple of useful factsheets (see links at bottom of article) on what this entails. However, as this BBC article explains, customers are still liable for extra charges if they exceed their contractually agreed data usage limits.
As the BBC article also points out, once article 50 has been fully implemented, it will be the up to a future UK Government to decide as to whether the UK adopts these pricing restrictions or not.
Travelling in Europe, a leaflet published by the EU, has now been updated for 2017-18. It contains lots of useful, practical information about travelling in the EU and includes a fold-out map of the continent.