Values for protecting the Great Barrier Reef: A review and synthesis of studies over the past 35 years.

Assessing the economic value of improved protection of the Great Barrier Reef (GBR) is important to demonstrate the consequences of loss and to evaluate the public benefits of programs to reduce pressures and address degradation. However, those values are not easy to measure, in part because of the diversity and complexity of the GBR, and because there are very different types of benefits involved. Since 1985, there have been over 40 major studies that have assessed values for these components at the whole GBR level, and many more for components at smaller scales.

Linking water quality impacts and benefits of ecosystem services in the Great Barrier Reef.

Water quality degradation in the Great Barrier Reef, associated with increased loads of nutrients, sediments and pesticides from agriculture, has become a major concern. Improved management practices and water quality targets were set in the Reef Plan 2013, but with limited success. The causality between water quality degradation, ecosystem health and benefits to society remains poorly understood, questioning the relevance of current water quality targets.

Asymptomatic autoimmune chronic active hepatitis in a male adolescent.

We report a 12-year-old boy presenting with smooth muscle antibody-positive auto-immune chronic active hepatitis. Suspicion of the diagnosis arose after a routine blood test which revealed abnormal liver function tests. In spite of the presence of cirrhosis and patchy necrosis on liver biopsy, our patient never showed any clinical feature of impaired liver function.