Rule no. 3
Danish inshore fishing
By Martin Joergensen
Now the rules might seem to start contradicting each other a bit, but still there's a logic behind it all.
Rule number three is a bit more complex
(but actually quite simple):Fish are where they feel good
That is where one or several factors are present:
food, shelter, optimum water conditions, other fish ...and more.
A sea trout is an eating machine
Food and shelter - what more can a fish want?
Take sea trout (which this is mainly about). Sea trout in the ocean are opportunistic eating machines. They're hungry and will eat all kinds of stuff: fry, small fish, shrimps, worms, small crustaceans and much else. Big fish will eat small things and small trout eat big things. So the fish will want to find plenty of food. The more stuffed the fish is (late season) the smaller things it eats.
A sea trout wants shelter
Also the fish will want shelter. Trout is not a pelagic fish (of the free water masses). It's primarily a shallow water fish, that wants weed, rocks and variation. Also the shallows will offer something else: dirt in the water and in dirt there are two important things: food and shelter.
The bigger trout will roam the free water masses and eat pelagic fish such as herring, but smaller fish (up to 10 lb. even more) will stay in shallow water.
A sea trout wants good water
And the fish wants good water, meaning good temperature and water movement. The optimum temperature for trout is about 8-12 deg Centigrade (45-55 F). The fish will slow down in colder water and seek fresh water like in fjords, estuaries and streams when it's really cold. Opposite it will seek deeper and colder water when it's really warm.
Sea trout will often school
Smaller fish (1-1.5 kg or 2-3 lb) will often go in schools. These small schools of a dozen fish or so will constantly be on the move. Often you'll find that fishing can be slow, but suddenly get going. You'll probably have hit a small school of trout. Keep fishing., stay in the water, and have 30 mins. or so of fun. After that the fish will often disappear. You might even be able to determin where the fish are going and follow them. Schooling is rarer in the summer, but will often occur in the spring and autumn.