Reefs at Risk Revisited is a high-resolution update of the original global analysis, Reefs at Risk: A Map-Based Indicator of Threats to the World’s Coral Reefs. Reefs at Risk Revisited uses a global map of coral reefs at 500-m resolution, which is 64 times more detailed than the 4-km resolution map used in the 1998 analysis, and benefits from improvements in many global data sets used to evaluate threats to reefs (most threat data are at 1 km resolution, which is 16 times more detailed than those used in the 1998 analysis).
This island nation contains many marine eco-systems, from globally significant coral reefs to mangroves, seagrass areas, seamounts and deep-sea trenches supporting at least 769 fish species, including sharks and rays, as well as whales, dolphins and sea turtles.
Available online
Call Number: [EL]
ISBN/ISSN: 978 82 7701 173 8
Physical Description: 84 p
Tongas marine ecosystems are worth at least TOP 47 million per year, exceeding the countrys total export value. We are strongly committed to sustaining these values to build an equitable and prosperous blue economy.
Available online
Call Number: [EL],363.94 MAR
ISBN/ISSN: 978 82 7701 174 5
Physical Description: 84 p
Interface habitats, areas where aquatic and terrestrial habitats intersect, play important functional roles. Interface habitats mediate the exchange of resources (e.g.. energy,
nutrients, water), alter abiotic gradients (e.g.. temperature, salinity, pH. sedimentation, nutrients), insulate abutting habitats from disturbances, and serve as critical habitat in