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.
Avoid fiber when diverticulitis is acting up. Invest in a good probiotic. Everyone reacts a bit different to different foods, if a food reacts badly, avoid it. Over cooked meaâ¦t is also very hard to digest and can sit in a colon too long creating bacteria.