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.
Some symptoms and signs of colon cancer are blood in the stool, dark-colored stool, change in bowel habits, constipation, diarrhea, or narrow stools. Abdominal pain, cramping, or bloating may occur. Nonspecific symptoms of colon cancer can include weight loss, fatigue, weakness, and shortness of breath.
Also, younger-onset colon cancer appears to affect African-Americans more often than other groups. The most common symptoms of colon cancer are rectal bleeding and lower abdominal cramping. Other telltale symptoms may include a change in stool consistency, constipation, diarrhea or weight loss. Blood tests that reveal new-onset anemia can often signal the presence of a colon tumor. Unfortunately, colon cancer often is not considered as a cause of such symptoms in people who are younger than 50. As a consequence, colon cancer diagnosis can be delayed. Statistics show that colon cancer tends to be diagnosed at later stages in young people.