Inflammatory bowel disease (IBD): Inflammatory bowel diseases (IBDs) like ulcerative colitis and Crohn's disease, are often controlled by a combination of medications that are used in a step-wise approach.
Habitats. Salmon live in different habitats: freshwater and ocean habitats. Freshwater habitats: When in freshwater, salmon fry and parr like to live in areas of gravel, cobbles and boulders and where the water is clean and unpolluted. Smolts migrate from our rivers to the sea.After a year or more at sea, adult salmon return from their feeding grounds back to their river.cean habitats: We know where salmon go to feed in the sea-grilse swim to near the Faroe Islands, and multi sea winter salmon swim to sub arctic seas near Greenland. But, we are not sure exactly which habitats salmon prefer and what happens to them whilst they are at sea.
However, population numbers in the Atlantic Ocean and in parts of the Pacific, as well as the Colorado River, have dropped drastically from what they were historically. In the Colorado River, for instance, salmon numbers are down to 3% of what they were during the time of Lewis and Clark.ehavior. Most salmon are anadromous fish, meaning they are born in freshwater (rivers or streams), travel to and live much of their lives in salt water and return to freshwater to spawn. After spawning, all Pacific salmon and up to 50% of other species die within a few weeks.