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:
Wright et al.
… than during other activities. Maximum foraging dive depths reflected the deeper vertical distribution of Chinook (compared to other salmonids) and the tendency of Pacific salmon to …
- Journal Article:
Olesiuk et al.
… of the sound generated by an acoustic harassment device (AHD) on the relative abundance and distribution of harbor porpoises (Phocoena phocoena) in Retreat Passage, British Columbia. During …
- Journal Article:
Thomson et al.
… Offshore wind farm developments may impact protected marine mammal populations, requiring appropriate assessment under the EU Habitats Directive. We describe … in the vicinity of proposed wind farm developments in NE Scotland. Spatial patterns of seal distribution and received noise levels are integrated with available data on the potential …
- Journal Article:
Nowacek et al.
… information for wildlife management and conservation. Studying the detailed behaviour of marine mammals involves challenges not faced by most animal behaviour researchers due to the … and lack of continuous visibility of these animals. We describe several methods developed by marine mammal scientists to study behaviour, primarily of cetaceans, focusing on technological advances: …
- Journal Article:
Wilson et al.
… acoustic detectors (e.g. C-PODs) are widely used to study harbour porpoise Phocoena phocoena distribution and relative abundance, but their use in tidal-stream habitats is complicated by the … the use of a new method aimed at tidal-stream habitats, which are of increasing interest for marine renewable energy generation. Porpoise detectors (C-PODs) were attached to multiple … behaviour in tidal-stream habitats, and should be considered as part of a comprehensive marine mammal monitoring approach of these energetic environments in the context of marine renewable …
- Journal Article:
Graham et al.
… Mitigation measures to disperse marine mammals prior to pile-driving include acoustic deterrent devices and piling soft starts, …
- Journal Article:
Moses and Finn
… an innovative and powerful tool to define relationships between species and habitat in large marine ecosystems. The objectives of this study were: 1) to gather bathymetry, SST(sea-surface … based logistic regression model to predict North Atlantic right whale ( Eubalaena glacialis ) distribution as a function of SST and bathymetry. Part of the Scotian Shelf, 45°00'N to 42°00'N … into the Recovery Plan for this species. GIS offers an inexpensive method to examine marine mammals in relation to environmental and oceanographic features which affect their life …
- Journal Article:
Dahl et al.
… part by basic questions concerning the relation between anthropogenic noise and the ecology of marine mammals. For example, there is concern about the degree to which marine mammals are possibly habituating to, or otherwise being affected by increasing … allude to the noise field’s variation in time, space and angle of arrival (angular intensity distribution). The major anthropogenic and natural constituents of the spectrum are itemized, and …
- Journal Article:
Mahmud et al.
… Passive acoustic monitoring (PAM) is a more efficient method of monitoring the distribution and abundance of deep-diving cetaceans than conventional visual surveys. Many … vehicle towed array and bottom-moored buoys were compared for their efficiency in detecting marine mammals. Detection events were obtained using independent detectors for each platform and …
- Journal Article:
Tyack and Thomas
… by a stressor typically involves combining a dose–response function with information about the distribution of animals and of the stressor. Regulators often prefer a single threshold to a full … calculate the number of animals impacted must draw from the dose–response function, the actual distribution of the animals, and a model mapping how the stressor intensity declines with … of the area and numbers of animals affected. This paper focuses on behavioural responses of marine mammals to anthropogenic sound and demonstrates that a common approach of selecting the …
- Journal Article:
Nabe-Nielsen et al.
… Ships and wind turbines generate noise, which can have a negative impact on marine mammal populations by scaring animals away. Effective modelling of how this affects the … using established principles of physiological ecology. Data are lacking on the spatial distribution of food which is instead inferred from knowledge of time-varying porpoise …
- Journal Article:
Slingsby et al.
… seconds). There is now global recognition of the importance of tidal stream environments for marine megafauna. Such areas are also key to the development of marine renewable energy due to the reliable and predictable nature of tidally driven flows. … collected within the Pentland Firth, UK. Resulting imagery was used to quantify the density distribution of pursuit-diving seabirds, called auks (of the family Alcidae), distribution in …
- Journal Article:
Lieber et al.
… Whilst the development of the tidal stream industry will help meet marine renewable energy (MRE) targets, the potential impacts on mobile marine predators using … of marine predators. Therefore, understanding how fine-scale hydrodynamics influence animal distribution patterns could inform the placing of devices to reduce collision and displacement … vessel-mounted ADCP (Acoustic Doppler current profiler) transects in combination with marine mammal surveys to collect high-resolution and concurrent hydrodynamic data in relation to …
- Journal Article:
Brown and Simmonds
… There is currently an unprecedented expansion of marine renewable-energy developments, particularly in UK waters. Marine renewable-energy plants are also being developed in many other countries across Europe and … information, including inferences drawn from the impact of other human activities in the marine environment, indicates a significant risk of negative consequences, with the noise from …
- Journal Article:
Camphuysen and Garthe
… European waters, collected using standard methods. The emphasis has always been on mapping distribution patterns and variations in relative abundance, from which seabird abundance … surface pollutants. Later studies put more emphasis on ecological aspects underlying seabird distribution and from this work a growing need for more adequate, but still standardised, coding … manual, a coding system is introduced that allows specific coding of associations of birds and marine mammals with certain surface phenomena (including land), coding of multi-species feeding …
- Journal Article:
Götz and Janik
… emitting band‐limited noise pulses with sharp onset times. Seal predation was monitored at a marine salmon farm (test site) over a full production cycle (19 month) with a multi‐transducer … in the number of fish lost due to seal damage at a short‐term test site. Visual monitoring of marine mammals around the long‐term test site showed that the number of seal surfacings within … the loudspeakers was only slightly lower during sound exposure. Harbour porpoise and otter distribution around the farm was not affected by sound exposure. By adjusting the frequency …
- Journal Article:
Mclean et al.
… before permission for development can be granted by any Determining Authority. The effects on marine top predators from displacement from important habitat are key concerns during offshore … operational phases of the development. Changes in guillemot and harbor porpoise abundance and distribution in response to offshore wind farm construction and operation were estimated using … regarding the magnitude of effect is needed. The empirical data presented here for two marine top predators provide a valuable addition to the evidence base, allowing future decision …
- Journal Article:
Russell et al.
… The installation and operation of these devices can result in conflicts with wildlife. In the marine environment, mammals may avoid wind farms that are under construction or operating. Such … spent travelling or displacement from key habitats. A paucity of data on at-sea movements of marine mammals around wind farms limits our understanding of the nature of their potential …
- Journal Article:
Piet et al.
… and effect components that can be quantified using known ecological information, e.g. spatial distribution of pressures or species, pressure-state relationships and population dynamics models … and how they impact the ecosystem and its components, i.e. seabirds, seabed habitats and marine mammals through various pressures. The results provide a “proof of concept” for this …
- Journal Article:
Berg et al.
… as intensive fishing and exploitation of offshore wind farms, may impact negatively on the marine mega fauna. As an attempt to control such impacts, surveying, and tracking of marine animals are often performed on the sites where those activities take place. Nowadays, … on the weakly supervised detection of marine animals. We propose a modification of the patch distribution modeling method (PaDiM), which is currently one of the state-of-the-art approaches …
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