Understanding the effects of electromagnetic field emissions from Marine Renewable Energy Devices (MREDs) on the commercially important edible crab, Cancer pagurus (L.)

2018 ◽  
Vol 131 ◽  
pp. 580-588 ◽  
Author(s):  
Kevin Scott ◽  
Petra Harsanyi ◽  
Alastair R. Lyndon
Keyword(s):  
Electromagnetic Field ◽  
Renewable Energy ◽  
Energy Devices ◽  
Marine Renewable Energy ◽  
Field Emissions ◽  
Cancer Pagurus ◽  
Commercially Important

scholarly journals Exposure to Electromagnetic Fields (EMF) from Submarine Power Cables Can Trigger Strength-Dependent Behavioural and Physiological Responses in Edible Crab, Cancer pagurus (L.)

2021 ◽  
Vol 9 (7) ◽  
pp. 776
Author(s):  
Kevin Scott ◽  
Petra Harsanyi ◽  
Blair A. A. Easton ◽  
Althea J. R. Piper ◽  
Corentine M. V. Rochas ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Policy Making ◽  
Physiological Responses ◽  
Dependent Manner ◽  
Power Cables ◽  
Environmental Assessments ◽  
Cancer Pagurus ◽  
Commercially Important ◽  
Total Haemocyte Count

The current study investigated the effects of different strength Electromagnetic Field (EMF) exposure (250 µT, 500 µT, 1000 µT) on the commercially important decapod, edible crab (Cancer pagurus, Linnaeus, 1758). Stress related parameters were measured (l-Lactate, d-Glucose, Total Haemocyte Count (THC)) in addition to behavioural and response parameters (shelter preference and time spent resting/roaming) over 24 h periods. EMF strengths of 250 µT were found to have limited physiological and behavioural impacts. Exposure to 500 µT and 1000 µT were found to disrupt the l-Lactate and d-Glucose circadian rhythm and alter THC. Crabs showed a clear attraction to EMF exposed (500 µT and 1000 µT) shelters with a significant reduction in time spent roaming. Consequently, EMF emitted from MREDs will likely affect crabs in a strength-dependent manner thus highlighting the need for reliable in-situ measurements. This information is essential for policy making, environmental assessments, and in understanding the impacts of increased anthropogenic EMF on marine organisms.

Strategic priorities for assessing ecological impacts of marine renewable energy devices in the Pentland Firth (Scotland, UK)

Marine Policy ◽  
2009 ◽  
Vol 33 (4) ◽  
pp. 635-642 ◽  
Author(s):  
Mark A. Shields ◽  
Lora Jane Dillon ◽  
David K. Woolf ◽  
Alex T. Ford
Keyword(s):  
Renewable Energy ◽  
Ecological Impacts ◽  
Energy Devices ◽  
Marine Renewable Energy

scholarly journals Offshore marine renewable energy devices as stepping stones across biogeographical boundaries

2014 ◽  
Vol 51 (2) ◽  
pp. 330-338 ◽  
Author(s):  
Thomas P. Adams ◽  
Raeanne G. Miller ◽  
Dmitry Aleynik ◽  
Michael T. Burrows
Keyword(s):  
Renewable Energy ◽  
Stepping Stones ◽  
Energy Devices ◽  
Marine Renewable Energy

Combined Optical and Acoustic Monitoring of Fishes in the Demonstration Site of Marine Renewable Energy Development

2016 ◽  
Author(s):  
Daisuke Kitazawa ◽  
Yoichi Mizukami
Keyword(s):  
Renewable Energy ◽  
Acoustic Wave ◽  
Fish Species ◽  
Video Camera ◽  
Water Tank ◽  
Fishing Vessel ◽  
Energy Devices ◽  
Marine Renewable Energy ◽  
Demonstration Site ◽  
Fish Eye

Before the installation of marine renewable energy devices, fish species and abundance should be examined for selecting the proper site where the effects of the devices on the environment and fish will be as small as possible. Fish species and abundance can be examined in a variety of methods such as a fish finder using an acoustic wave and fishing gears such as a gill net. However, the fish finder cannot specify the species of fish that is sometimes estimated from the experience of fishermen or scientific researchers. Some amounts of fish must be removed from the target sea area in case of using the fishing gear, while the species of fish can be specified. In the present study, an underwater optical video camera is combined with the fish finder using an acoustic wave to specify the species of fish. A circular fish-eye digital video camera is inserted into a waterproof container. A part of the container is made of glass in a dome shape for the circular fish-eye lens. The container is attached to polyethylene ropes and is towed by a fishing vessel. First, the hydrodynamic characteristics of the container was examined by a towing test with the three kinds of towing speed in a water tank. Then the container was towed in the real sea, which is the demonstration site of offshore wind and wave energy developments off Kamaishi of Iwate Prefecture. The depth of the video camera with the container was not constant since the moving speed of the fishing vessel was slow and fluctuating. The image of video camera could be captured successfully together with that of the acoustic video camera, while fish could not be found in both the optical and acoustic measurements in the present investigation. The investigation will be continued, and the effects of transparency of water should be discussed as future works. Also the actual or model fish should be captured by the underwater video camera to evaluate if it can specify the species of fish.

Active acoustic monitoring in extreme turbulence around marine renewable energy devices

2016 ◽  
Vol 139 (4) ◽  
pp. 2174-2174
Author(s):  
Shaun Fraser ◽  
Benjamin Williamson ◽  
Beth E. Scott ◽  
Vladimir Nikora
Keyword(s):  
Renewable Energy ◽  
Acoustic Monitoring ◽  
Energy Devices ◽  
Marine Renewable Energy

scholarly journals A tool for simulating collision probabilities of animals with marine renewable energy devices

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0188780 ◽  
Author(s):  
Pál Schmitt ◽  
Ross Culloch ◽  
Lilian Lieber ◽  
Sverker Molander ◽  
Linus Hammar ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Devices ◽  
Marine Renewable Energy

scholarly journals Advanced Energy Harvesting Control Schemes for Marine Renewable Energy Devices

2016 ◽  
Author(s):  
Jarlath McEntee ◽  
Brian Polagye ◽  
Brian Fabien ◽  
Jim Thomson ◽  
Levi Kilcher ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Harvesting ◽  
Energy Devices ◽  
Marine Renewable Energy ◽  
Control Schemes

scholarly journals Epibenthic Assessment of a Renewable Tidal Energy Site

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Emma V. Sheehan ◽  
Sarah C. Gall ◽  
Sophie L. Cousens ◽  
Martin J. Attrill
Keyword(s):  
Renewable Energy ◽  
Global Climate ◽  
Benthic Communities ◽  
Local Environment ◽  
Tidal Energy ◽  
Baseline Survey ◽  
Ecological Data ◽  
Energy Devices ◽  
Potential Control ◽  
Marine Renewable Energy

Concern over global climate change as a result of fossil fuel use has resulted in energy production from renewable sources. Marine renewable energy devices provide clean electricity but can also cause physical disturbance to the local environment. There is a considerable paucity of ecological data at potential marine renewable energy sites that is needed to assess potential future impacts and allow optimal siting of devices. Here, we provide a baseline benthic survey for the Big Russel in Guernsey, UK, a potential site for tidal energy development. To assess the suitability of proposed sites for marine renewable energy in the Big Russel and to identify potential control sites, we compared species assemblages and habitat types. This baseline survey can be used to select control habitats to compare and monitor the benthic communities after installation of the device and contribute towards the optimal siting of any future installation.

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