The Great Barrier Reef Marine Park is a multiple-use area. Zoning helps to manage and protect the values of the Marine Park that users enjoy. Zoning Plans define what activities can occur in which locations both to protect the marine environment and to separate potentially conflicting activities.
Symptoms occur later, when the cancer may be harder to treat. The most common symptoms include: 1  Pain in the belly. 2  Blood in your stool or very dark stools. 3  A change in your bowel habits. ( 4 You may have more frequent stools or a feeling that your bowels aren't emptying completely). 5  Constant tiredness (fatigue).
When tumours have grown to a large size they may cause a change in the frequency or the diameter of the stool. Common symptoms of colorectal cancer include: 1  A change in bowel habits (persistent constipation or diarrhoea lasting more than 3 weeks).2  Blood on or in the stool that is either bright or dark. 3  Unusual abdominal or stomach pains. 4  Unexplained weight loss. 5  Anaemia.hen tumours have grown to a large size they may cause a change in the frequency or the diameter of the stool. Common symptoms of colorectal cancer include: 1  A change in bowel habits (persistent constipation or diarrhoea lasting more than 3 weeks).