Most authorities recognize three species within the perch genus: 1  The European perch (Perca fluviatilis) is found in Europe and Asia. 2  The Balkhash perch (Perca schrenkii) is found in Kazakhstan, (in Lake Balkhash and Lake Alakol), Uzbekistan, and China.
Foods to avoid with diverticulitis. In the past, doctors had recommended that people with diverticular disease (diverticulosis or diverticulitis) avoid hard-to-digest foods such as nuts, corn, popcorn or seeds, because of the risk that these foods may get stuck in the diverticula and lead to inflammation.
What to Eat During a Diverticulitis Flare. While high-fiber foods should be a part of your diet, one exception is to avoid them during a diverticulitis flare. If you begin to experience symptoms like abdominal pain, fever, nausea, vomiting, diarrhea or constipation, and chills, you are likely experiencing a diverticulitis flare.