The coast, also known as the coastline, shoreline or seashore, is defined as the area where land meets the ocean, or as a line that forms the boundary between the land and the coastline. Shores are influenced by the topography of the surrounding landscape, as well as by water induced erosion, such as waves. The geological composition of rock and soil dictates the type of shore which is created. The Earth has around 620,000 kilometres (390,000 mi) of coastline. Coasts are important zones in natural ecosystems, often home to a wide range of biodiversity. On land, they harbor important ecosystems such as freshwater or estuarine wetlands, which are important for bird populations and other terrestrial animals. In wave-protected areas they harbor saltmarshes, mangroves or seagrasses, all of which can provide nursery habitat for finfish, shellfish, and other aquatic species. Rocky shores are usually found along exposed coasts and provide habitat for a wide range of sessile animals and various kinds of seaweeds. In physical oceanography, a shore is the wider fringe that is geologically modified by the action of the body of water past and present, while the beach is at the edge of the shore, representing the intertidal zone where there is one. Along tropical coasts with clear, nutrient-poor water, coral reefs can often be found between depths of 1–50 meters.
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world.
The National Estuarine Research Reserve System is a network of 30 protected areas established by partnerships between the National Oceanic and Atmospheric Administration (NOAA) and coastal states. The reserves represent different biogeographic regions of the United States. The National Estuarine Research Reserve System protects more than 1.3 million acres of coastal and estuarine habitats for long-term research, water-quality monitoring, education, and coastal stewardship.
Ecosystem services are the many and varied benefits to humans provided by the natural environment and healthy ecosystems. Such ecosystems include, for example, agroecosystems, forest ecosystem, grassland ecosystems, and aquatic ecosystems. These ecosystems, functioning in healthy relationships, offer such things as natural pollination of crops, clean air, extreme weather mitigation, and human mental and physical well-being. Collectively, these benefits are becoming known as ecosystem services, and are often integral to the provision of food, the provisioning of clean drinking water, the decomposition of wastes, and the resilience and productivity of food ecosystems.
The Atlantic Oceanographic and Meteorological Laboratory (AOML), a federal research laboratory, is part of the National Oceanic and Atmospheric Administration's (NOAA) Office of Oceanic and Atmospheric Research (OAR), located in Miami in the United States. AOML's research spans tropical cyclone and hurricanes, coastal ecosystems, oceans and human health, climate studies, global carbon systems, and ocean observations. It is one of seven NOAA Research Laboratories (RLs).
The Long Term Ecological Research (LTER) Network consists of a group of over 1800 scientists and students studying ecological processes over extended temporal and spatial scales. Twenty-eight LTER sites cover a diverse set of ecosystems. It is part of the International Long Term Ecological Research Network (ILTER). The LTER Program was established in 1980 and is funded by the U.S. National Science Foundation. Data from LTER sites is publicly available in the Environmental Data Initiative repository and findable through DataONE search.
The University of Georgia Marine Institute (UGAMI) is a nearshore ecological and geological research station located on Sapelo Island off the coast of Georgia in the United States. This island lies between the Atlantic Ocean and a pristine salt marsh. A ferry takes passengers from Meridian to Sapelo Island. The Island has fewer than 100 full-time residents. The Institute was created in 1953 and is currently a unit of the University of Georgia's Office of Research. The Institute is 280 miles southeast of the University of Georgia's main campus in Athens. UGAMI is world-renowned for its research on coastal marine and estuarine ecosystems.
The University of Georgia Skidaway Institute of Oceanography (SkIO) is a marine science research and education institute located on Skidaway Island near Savannah, Georgia, USA. UGA Skidaway Institute faculty conduct oceanographic research across all the major marine science disciplines, and from the waters and marshes adjoining the campus to around the world. They teach, advise and mentor both undergraduate and graduate students on the UGA Skidaway Marine Science Campus and on the university’s main campus in Athens. Institute resources include state-of-the-art research laboratories and instrumentation, and the 92-foot research vessel Savannah.
The Harte Research Institute for Gulf of Mexico Studies (HRI) at Texas A&M University-Corpus Christi is the only marine research institute dedicated solely to advancing the long-term sustainable use and conservation of the world's ninth-largest body of water. Established in 2001, HRI integrates outstanding scientific research with public policy to provide international leadership in generating and disseminating knowledge about the Gulf of Mexico ecosystem and its critical role in the economies of the North American region.
The Coastal and Estuarine Research Federation (CERF) is a private, nonprofit organization created in 1971. At that time, the members of two regionally based organizations, the Atlantic Estuarine Research Society (AERS) and the New England Estuarine Research Society (NEERS) recognized the need for a third estuarine organization that would address national estuarine and coastal issues. Today, CERF is a multidisciplinary federation of members and seven regionally-based Affiliate Societies dedicated to the understanding and wise stewardship of estuaries and coasts worldwide.
The Mission-Aransas National Estuarine Research Reserve, currently directed by Jace Tunnell, is a large contiguous complex of wetland, terrestrial, and marine environments on the Texas Coastal Bend in the United States. Named for the two major rivers that flow into the area, the reserve contains public and private lands and waters. The land is primarily coastal prairie with unique oak motte habitats. The wetlands include riparian habitat, freshwater marshes, and saltwater marshes. Within the water areas, the bays are large, open, and include extensive tidal flats, seagrass meadows, mangroves, and oyster reefs. These unique and diverse estuarine habitats in the western Gulf of Mexico support a host of endangered and threatened species including the endangered whooping crane.
Mangrove ecosystems represent natural capital capable of producing a wide range of goods and services for coastal environments and communities and society as a whole. Some of these outputs, such as timber, are freely exchanged in formal markets. Value is determined in these markets through exchange and quantified in terms of price. Mangroves are important for aquatic life and home for many species of fish.
Donald F. Boesch is a professor of marine science and, from 1990 to 2017, president of the University of Maryland Center for Environmental Science. From 2006-2017, he concurrently served as Vice Chancellor for Environmental Sustainability for the University System of Maryland. In 2010, he was appointed by President Barack Obama as a member of the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling to investigate the root causes of the blowout at the Macondo Prospect in the Gulf of Mexico.
Michael J. Kennish is an American marine scientist and a research professor in the Institute of Marine and Coastal Sciences at Rutgers University in New Brunswick, New Jersey. He is best known for his work on the effects of human activities on estuarine and marine environments.
Nancy Nash Rabalais is an American marine ecologist. She researches dead zones in the marine environment and is an expert in eutrophication and nutrient pollution.
Deborah K. Steinberg is an American Antarctic biological oceanographer who works on interdisciplinary oceanographic research programs. Steinberg's research focuses on the role that zooplankton play in marine food webs and the global carbon cycle, and how these small drifting animals are affected by changes in climate.
Aureoumbra lagunensis is a unicellular planktonic marine microalga that belongs in the genus Aureoumbra under the class Pelagophyceae. It is similar in morphology and pigments to Aureococcus anophagefferens and Pelagococcus subviridis. The cell shape is spherical to subspherical and is 2.5 to 5.0 μm in diameter. It is golden-coloured and is encapsulated with extracellular polysaccharide layers and has a single chloroplast structure with pigments.
Anne E. Giblin is a marine biologist who researches the cycling of elements nitrogen, sulfur, iron and phosphorus. She is a Senior Scientist and Acting Director of the Ecosystem Center at the Marine Biological Lab.
Skeletonema costatum is a cosmopolitan centric diatom that belongs to the genus Skeletonema. It was first described by R. K. Greville, who originally named it Melosira costata, in 1866. It was later renamed by Cleve in 1873 and was more narrowly defined by Zingone et al. and Sarno et al. Skeletonemacostatum is the most well known species of the genus Skeletonema and is often one of the dominant species responsible for red tide events.
Scott W. Nixon was an ecosystem ecologist whose research primarily focused on nitrogen and eutrophication in coastal and estuarine ecosystems. He was the first to clearly define coastal eutrophication. Nixon was a faculty member of the University of Rhode Island’s Graduate School of Oceanography from 1969 until his death. Throughout his life, he also served important roles in many organizations and committees, including as the director of Rhode Island Sea Grant, editor-in-chief of Estuaries, and a member of the National Research Council's Ocean Studies Board.
