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Showing Results for
- Report:
Geo-Marine Inc
… coastal boat and offshore ship surveys are to determine diurnal avian species occurrence, distribution, abundance, and altitude distribution. Species occurrence data are needed to … volume. Volume 1: Overview, Summary, and Application Volume 2: Avian Studies Volume 3: Marine Mammal and Sea Turtle Studies Volume 4: Fish and Fisheries Studies … 2010-07-01 …
- 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 …
- Book Chapter:
Skov et al.
… project aims to synthesise the data by long-term analysis and modelling of harbour porpoise distribution in the German Bight, i.e. the alpha ventus area and adjacent waters. This study uses predictive distribution models – a recent development in habitat modelling – to estimate harbour porpoise …
- 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 …
- Tethys Story:
… and increase participation by scientists and engineers examining environmental effects of marine renewable energy devices. This strategy resulted in a EWTEC high of 25 papers in 6 … et al. presented hydroacoustic results to better understand fish abundance and their vertical distribution near a tidal device in the US, and Viehman demonstrated the use of temporal analysis … al.; Roberts et al.); numerical modeling and tissue analysis to predict the risk to a marine mammal from tidal blade strike (Grear and Motley); the impact of electromagnetic field emissions …
- Report:
Trowse and Zedel
… The tidal energy industry requires effective marine life monitoring systems for characterising pre-deployment conditions and evaluating the … with improved knowledge of the avoidance and evasion behaviours, strike detection, and species distribution of marine animals. Significant work focused on imaging sonars (active acoustics) and hydrophones …
- Report:
Macaulay et al.
… seek to reduce their reliance on energy from fossil fuels, developers are turning to the marine environment as a potential source of low carbon energy. This is leading to new types of … collision risk. These include: the density of animals in the area of interest, their depth distribution and underwater movements and the extent to which they can detect and avoid the … cetaceans in tidal rapid habitats. Harbour porpoises are the most commonly encountered marine mammal species in Northern European shelf waters (Hammond et al. 2013). They are listed under …
- Report:
Haulsee et al.
… Delaware (DE) WEA starts approximately 11 km off the coast, but little information about the distribution and occurrence of marine species in this area is known. Between 2017-2019, an extensive acoustic telemetry project … Acoustic detections from all receivers in the array documented the presence of 26 different marine fish and mammals, which creates a baseline to inform future monitoring efforts. Atlantic …
- 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 …
- Website:
Northeast Fisheries Science Center
… We conduct surveys and develop abundance and distribution models to better understand how protected species such as whales, dolphins, and sea …
- Report:
Arundale et al.
… tern (Sterna dougallii). The aims and objectives of the work are to assess the abundance and distribution of birds, marine mammals, turtles, sharks, and rays present in the Lease Area OCS-A 0520 over the course of … impact assessments and are consistent with the survey guidelines for providing avian, marine mammal, and sea turtle information for renewable energy development on the OCS (BOEM 2017 and …
- 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 …
- Tethys Story:
… environmental and wildlife data to aid offshore wind development. As part of that effort, the Marine Mammal Institute (MMI) at Oregon State University (OSU) began the MOSAIC (Marine Offshore Species … the last two years of the project. The goals of MOSAIC are to quantify cetacean and seabird distribution and density throughout the study area at a fine spatial and temporal (seasonally …
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… and Secondary Entanglement Risk Associated with OSW Development Assess entanglement risks to marine mammals and sea turtles listed under the ESA and/or protected under the MMPA during activities to support OSW.... Read more Entanglement Marine Mammals, Sea Turtles Operations & Maintenance Pacific Coast Maxwell et al. (2022) Collect … humpback, fin, gray, minke, North Pacific Right Whales) and sea turtles.... Read more N/A Marine Mammals, Sea Turtles Pre-construction, Construction, Operations & Maintenance Pacific …
- Report:
BOEM Office of Renewable Energy Programs
… US Wind applied to the National Oceanic and Atmospheric Administration’s (NOAA’s) National Marine Fisheries Service (NMFS) for an incidental take authorization in the form of a Letter of Authorization (LOA) for Incidental Take Regulations under the Marine Mammal Protection Act (MMPA) of 1972, as amended (16 U.S.C. 1361 et seq.), for incidental take of … Cited Appendix L: Glossary Appendix M: List of Preparers and Reviewers Appendix N: Distribution List … 2023-09-29 …
- Report:
Geelhoed et al.
… Wind programme. The aim of these aerial surveys was to assess the seasonal abundance and distribution of harbour porpoises Phocoena phocoena on the Dutch Continental Shelf (DCS), and how their distribution varies in space and by season. Such information is vital if we are to understand, … and early spring (March 2011). The surveys covered 16013 km on effort (in search modus for marine mammals, Figure 3). In total 1085 sightings (1236 animals) of harbour porpoises were …
- Journal Article:
Hastie et al.
… have found that predators utilise habitat corridors to ambush prey moving through them. In the marine environment, coastal channels effectively act as habitat corridors for prey movements, and … terrestrial systems where the underlying habitat structure is generally static, corridors in marine systems are in episodic flux due to water movements created by tidal processes. Although … vitulina ) tagged with high-resolution GPS telemetry to investigate the spatial and temporal distribution patterns of seals in a narrow tidal channel. These seals showed a striking pattern …
- Website:
National Marine Sanctuaries
… of detritus and small planktonic organisms. Eaten by: Octopus, seals, sea otters and other marine mammals Feeds: Claws are used for catching and tearing food. Moves: Three pair of walking …
- Report:
APEM Ltd
… control zone (‘zone 2’) was surveyed with the same frequency over the same period, to satisfy Marine Licence conditions. An additional four control zones (zone 3, 5, 6 & 7) were also surveyed … January 2013 and peaked in February 2013 with 5,004 (3,940 – 6,359) estimated divers present. Distribution of divers appeared to reflect shallow water areas. Approximately 97% of all divers … auks and puffins). Gulls were the most abundant species group after divers. The majority of marine mammals recorded across all zones during the 2012 / 13 aerial survey were cetaceans (77% …
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