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.
Showing Results for
- Journal Article:
Elmer
… Underwater noise is a severe annoyance and danger to marine life. The innovative HSD (hydro sound damper) leads to an effective general method to … noise. HSD was developed and patented between 2007 and 2010 by the author to reduce general marine noise and especially offshore piling noise. The theory and the acoustical background of … The resonance frequency of the HSD-elements, the optimum damping rate for impact noise, the distribution and the effective frequency range can be fully controlled. Offshore tests and serial …
- Journal Article:
Zhang et al.
… farm datasets are commercially available via energy industries, records of the exact spatial distribution of individual wind turbines and their construction trajectories are rather … threshold algorithm in the Google Earth Engine platform to identify the spatiotemporal distribution of global OWTs. By 2019, 6,924 wind turbines were constructed in 14 coastal nations. … could further our understanding of the environmental impact of OWTs and support effective marine spatial planning for sustainable development. … 2021-07-27 …
- Report:
Evans et al.
… context of providing appropriate advice to regulators on potential interactions between these marine animals and renewable devices. Main Findings Nineteen cetacean species have been recorded … patterns. Although areas can be identified where sightings have been concentrated, the uneven distribution of effort limits clear interpretation of distribution patterns. Notwithstanding potential effort biases, some areas (e.g. Scapa Flow and …
- Thesis:
Evert
… The human presence in the worlds’ oceans is increasing, in response to the growing demand for marine resources. This expansion of human activities will increase pressure on marine ecosystems and demands a responsible ocean management, to ensure the sustainable use of … We found that areas of high impact were strongly influenced by seasonal variations in the distribution of cetaceans. In this case study, we identified an area of high impact in the …
- Journal Article:
Suberg et al.
… economic, technological and policy drivers is behind a recent upsurge in the use of marine autonomous systems (and accompanying miniaturized sensors) for environmental mapping and … equipped with a single-frequency echosounder to collect information on zooplankton and fish distribution. The other glider carried a Passive Acoustic Monitoring system to detect and record … fish/cetacean detections within the water column. The broader implications of this study for marine ecosystem monitoring with submarine gliders are discussed. … 2014-09-01 …
- Journal Article:
Skov and Thomsen
… Phocoena phocoena has become a focal species in relation to management of human activities and marine habitat conservation efforts. In this study, acoustic and visual time series of harbour … as the survey data. Spatial modelling based on selected key predictor variables showed the distribution of harbour porpoises to alternate between 2 upwelling cells depending on the …
- Report:
Piet et al.
… of offshore wind energy. The objectives of this study are to evaluate for the North Sea marine ecosystem the knowledge base to assess the cumulative impacts of all the main human … we discuss the possibilities to apply CIA in the context of an ecosystem-based approach to marine spatial planning aimed at achieving existing environmental marine policy goals. This report provides an overview of the state-of-the-art knowledge to assess …
- Journal Article:
Van Parijs et al.
… With a diverse suite of endangered large whale species and a multitude of other protected marine species frequenting these same waters, understanding the potential consequences of …
- Report:
Wang et al.
… highest risk of severe or lethal injury due to a ship strikes. On the waterway network the distribution of ton-force of ship traffic is rather uniform, and thus, the distribution of whales rather than ton-force determines the distribution of risk of potential severity of injury to whales. We use impact physics from known …
- Report:
Harris et al.
… Marine mammal abundance and distribution data form an important part of assessments to estimate the potential effects of … sources of information that can contribute to estimating the abundance and distribution of marine mammals. Digital aerial surveys ( DAS ) and static passive acoustic monitoring ( PAM ) are …
- Journal Article:
Skov et al.
… Data on the distribution of cetaceans and seabirds in the Northeast Atlantic sampled in late summer of 1987 and 1989 were analysed. The distribution of ten species of cataceans and eleven species of seabirds could be summarized into … as reflections of habitat entities, but rather as a first insight into common features to the distribution of cetaceans and birds in the study area. A clearer distribution overlap between …
- Journal Article:
Lagerquist et al.
… indigenous harvesting, fishing gear entanglements, ship strikes, naval exercises, siting of marine renewable energy facilities). We applied satellite tags to 35 gray whales in the eastern … potential responses to climate change, and exposure to anthropogenic activities in the marine environment. … 2019-05-01 …
- Report:
Perrow and Skeate
… undertaken during the pupping period in order to improve the accuracy of the pup counts. The distribution of haul out sites also changed between years, although both in 2002 and 2003 the … have reported a large sandbar appearing parallel to Scroby, which would indicate that sand distribution has changed. The seals may have chosen different haul out sites in 2003 because, as … is that the seals prefer hauling out on some substrate types more than others, and that the distribution of these substrates changed between years. This example highlights an important …
- Report:
Exponent Inc.
… found to be below reported threshold levels for effects on the behavior of magnetosensitive marine organisms. Electric fields induced in seawater and in local electrosensitive marine organisms were assessed in the same areas, and were similarly found to be below reported …
- Report:
Brasseur et al.
… This study describes the abundance and distribution of harbour seals, Phoca vitulina , in the Netherlands in relation to environmental … but information on the seals’ habitat use (preference) and on which factors influence their distribution (both natural and anthropogenic) is lacking. In the current study, we utilise data … of the large shipping routes. Pile driving activities could have influenced the seals distribution: Pile driving for OWEZ and then Prinses Amalia Wind Park took up almost a year. The …
- Journal Article:
Gilles et al.
… species in the North Sea. There is a growing demand for predictive models of porpoise distribution to assess the extent of potential conflicts and to support conservation and … models to predict harbour porpoise density and to investigate seasonal shifts in porpoise distribution in relation to several static and dynamic predictors. Sightings were collected …
- Report:
Turner and Weig
The studies described here were to quantify abundance and distributions of near-surface zooplankton in the windfarm area south of Martha’s Vineyard during May and June of 2021. This was being done because endangered right whales (Eubalaena glacialis) (Kraus et al. 2005; MeyerGutbrod & Greene, 2018) have historically been known to forage on zooplankton, in and around waters off southeastern…
- Report:
Brodie et al.
… offshore wind structures on ocean circulation and stratification and their relationship to the distribution and density of copepods and the suitability of foraging habitat for the critically … here from the results of published research on the oceanographic conditions, copepod distribution, and NARW distribution and habitat use in the Western North Atlantic. The topic of climate change and …
- Journal Article:
Serpetti et al.
… Aquaculture and marine renewable energy are two expanding sectors of the Blue Economy in Europe. Assessing the … of eutrophication and noise is a priority for both the EU Water Framework Directive and the Marine Strategy Framework Directive, and cumulative impacts will be important for the Maritime … evaluated the following specific ecosystem responses: (i) top-down control pathways due to distribution changes among top-predators (harbor porpoise, gadoids and seabirds) driven by …
- Journal Article:
Rice et al.
Differing physical characteristics and levels of biological, environmental, and anthropogenic sounds contribute in varying levels of noise in different ocean environments. As a result, animals migrating over large ranges or widely distributed species are now exposed to a myriad of different acoustic environments, within which they must navigate, forage and reproduce. Given current increases in…
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