Healthy marine and coastal ecosystems provide valuable services - from food security, resources for economic growth and recreation alongside tourism and coastline protection. Published by the United Nations Environment Programme (UNEP), this guide on Marine and Coastal Ecosystem-Based Management (EBM), seeks to assist countries and communities to take steps towards making marine and coastal ecosystem-based management operational - from strategic planning to on-site implementation.

The National Park Services' World War II Valor in the Pacific National Monument features the USS Arizona Memorial in Pearl Harbor, Oahu, Hawaii. This poster, intended for visitor and school audiences alike, presents a side of the historic Memorial often overlooked: the artificial reef that the submerged wreck has become. Five aspects of this natural ecosystem are described.

Conceptual diagrams are an excellent means of providing synthesis, visualization, and appropriate context to science communication, an essential component of environmental problem solving. The creation of conceptual diagrams provides an interface for engagement of various stakeholders, including scientists, managers, and wider public partners.

The environmental challenges now facing humanity are particularly acute in the coastal zone. Research in this region and in other aquatic ecosystems is complicated by interactions that occur over broad scales of time, space, and ecological complexity. Enclosed experimental ecosystems have become critical research tools because they provide a degree of control not achievable through field experiments.

This is a practical handbook on how to communicate science effectively. The first part is an introduction to the principles of science communication – what effective science communication is, why it is important, and how to do it. The principles in these chapters include how effective science communication can change societal paradigms and make one a better scientist.

This is a practical handbook on how to communicate science effectively. The first part is an introduction to the principles of science communication-what effective science communication is, why it is important, and how effective science communication can change societal paradigms and make one a better scientist.

Southwest Australia has warm temperate water with a mixture of tropical influences from the Leeuwin Current and cool southern waters. This mixing of tropical and temperate water results in diverse seagrass communities occurring in a wide variety of coastal habitats. Almost half of the world's ~60 seagrass species can be found along this 1,500 km of coast. Seagrasses are important to the marine environment as they stabilise sediments and trap nutrients, helping to maintain water quality.

Estuaries are transition zones where rivers meet the ocean, creating an environment with large seasonal fl uctuations in temperature, salinity, and light. These difficult growing conditions provide some unique challenges for seagrasses. In southwest Australia, estuaries are usually closed by a sand bar at the mouth, cutting them off from the ebb and fl ow of the tide for long periods. Winter rains flow down-river into the estuaries, raising the water level until it breaks through the sand bar.

On the south coast, a diverse range of seagrasses grow in habitats protected from the full force of waves by islands and headlands. South coast seagrasses grow on silica sand to a depth of about 30 m and on carbonate sand beyond 30 m depth. Many seagrasses grow in these sheltered zones, including most of the species found on the west coast. Beyond the shelter of the headlands, waves roll in from the open ocean and seagrasses are subjected to very high wave action.

Along some 600 km of the west coast, a line of offshore islands and submerged reefs provides protection from the full force of ocean swell and zones of sand deposition. The longitudinal reef and islands remain from former coastlines drowned by rising sea levels - the most recent rise was about 6,000 - 12,000 years ago.