This site-wide search returns results for all documents, events, metadata, and stories in Tethys, prioritizing the best matches. Partial word matches are returned (e.g. "environment" finds "environmental"), but every entered term must be found. If you don't find any results, try reducing the number of words entered or removing special characters. Filters to the right can help narrow your search. Tethys now features an integrated search with other marine renewable energy databases in PRIMRE - click the buttons below "Showing Results for" to search other integrated databases.
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- The Knowledge Base provides access to documents and information about the environmental effects of wind and marine renewable energy, supporting the OES-Environmental and WREN initiatives. Relevant documents from around the world are compiled into a user-friendly table that displays…
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- The Knowledge Base provides access to documents and information about the environmental effects of marine renewable energy, supporting the OES-Environmental initiative. Relevant documents from around the world are compiled into a user-friendly table that displays all content available in Tethys. Results can be narrowed…
- The Knowledge Base provides access to documents and information about the environmental effects of wind energy, supporting the WREN initiative. Relevant documents from around the world are compiled into a user-friendly table that displays all content available in Tethys. Results can be narrowed using the keyword filters on the right, or…
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The Tethys team has partnered with IEA Wind’s WREN Initiative to collect information, or metadata, on environmental monitoring conducted at offshore wind energy projects around the world. By making this information widely available, Tethys and WREN aim to advance global understanding of these effects and progress the industry in an…
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OES-Environmental
Most marine renewable energy (MRE) devices must be attached to the seafloor in some way, either by gravity foundations, pilings, anchors, or mooring lines; many will also have transmission cables on the seabed, as well as the devices themselves in the water column. Physical changes in benthic and pelagic habitats have the potential to alter where species live and how common…
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OES-Environmental
Over the past two decades, researchers, in collaboration with the marine renewable energy (MRE) industry and regulatory agencies, have examined the potential effects of MRE, focusing on the stressor-receptor approach to categorize the most significant potential risks for tidal, riverine, ocean currents, wave, and thermal gradients. Using information collected under OES-Environmental, 86…
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OES-Environmental
To date, the focus on evaluating environmental effects has been on interactions of small numbers of marine renewable energy (MRE) devices (1-6) with the environment, including collision of animals with turbine blades, underwater sound and electromagnetic field emissions, habitat alteration, and changes in oceanographic processes. As the industry moves toward deployments of…
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OES-Environmental
Physical processes such as tides, waves, and ocean currents shape the marine ecosystem through the mixing of water masses and exchange of dissolved gases and nutrients, providing support for marine organisms and habitats. Marine renewable energy (MRE) devices that harness energy from tides, waves, and ocean currents may affect these oceanographic systems. Potential changes include altered…
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OES-Environmental
The social and economic effects of marine renewable energy (MRE) must be considered in consenting/permitting and strategic planning processes. MRE may accrue benefits or cause adverse effects on economies, communities, jobs, revenues, supply chains, social services, existing industries, local infrastructure, and community well-being. Social and economic effects of MRE are…
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OES-Environmental
The presence of marine renewable energy (MRE) devices—particularly the rotating blades of tidal and river turbines—is thought to pose a risk to marine animals. Animals might come into close contact with turbine blades in the course of their natural movements, because they are attracted to the device for purposes of feeding, shelter, or out of curiosity, or because they are not strong enough to…
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OES-Environmental
Technologies that harvest energy from seawater and large rivers are under development around the world. Marine renewable energy (MRE) devices are designed to take advantage of tidal currents, fast flowing rivers, and waves, as well as persistent ocean currents and natural gradients of temperature and salinity in ocean waters. The potential benefits that MRE can bring to nations and…
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OES-Environmental
Electromagnetic fields (EMFs) occur naturally in the environment and consist of electric fields (E-fields) and magnetic fields (B-fields). Natural E- and B-fields provide important cues to electro-receptive and magneto-receptive species, including some species of bony fish (e.g., salmon), crustaceans (e.g., crabs), and elasmobranchs (e.g., sharks,…
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OES-Environmental
Animals use sound in the marine environment like humans and animals use light (sight) on land. Underwater sound allows animals to communicate, navigate, interact, forage, and avoid predation. The extent to which marine animals detect and produce sound varies by species, covering a wide range of sound frequencies. Marine mammals and some fish…
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OES-Environmental
Numerous strategies have been implemented globally for consenting/permitting marine renewable energy (MRE) projects, such as risk retirement, adaptive management, and marine spatial planning. Risk retirement allows for potential risks that are unlikely to cause harm to be retired and for available data and information to be applied to investigate potential environmental…
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OES-Environmental
As the marine renewable energy (MRE) industry expands and more devices are deployed in the water, animals may be displaced from their preferred or critical habitats due to the physical presence of the devices or other aspects of the projects. Displacement is triggered by an animal’s response to one or more stressors acting as a disturbance, with various consequences ranging…
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OES-Environmental
Many marine renewable energy (MRE) devices are attached to the seabed with mooring lines, which allow them to maintain their position within the water column or on the sea surface. In an array, underwater cables are also used to carry power from multiple devices to a single power export cable installed on the seabed. The potential for these lines…
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OES-Environmental
OES-Environmental continues to collect, organize, and disseminate information on environmental effects of marine renewable energy (MRE), as well as pursuing processes for applying data and information to support consenting at new projects through risk retirement and data transferability processes. These efforts will continue in collaboration with experts from the other participating countries…
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