marine energy
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2022 ◽  
Vol 176 ◽  
pp. 106525
Author(s):  
Kapilkumar Nivrutti Ingle ◽  
Mark Polikovsky ◽  
Mulugeta Chanie Fenta ◽  
Akash Sopan Ingle ◽  
Alexander Golberg

2022 ◽  
Vol 10 (1) ◽  
pp. 92
Author(s):  
Lenaïg G. Hemery ◽  
Kailan F. Mackereth ◽  
Levy G. Tugade

Marine energy devices are installed in highly dynamic environments and have the potential to affect the benthic and pelagic habitats around them. Regulatory bodies often require baseline characterization and/or post-installation monitoring to determine whether changes in these habitats are being observed. However, a great diversity of technologies is available for surveying and sampling marine habitats, and selecting the most suitable instrument to identify and measure changes in habitats at marine energy sites can become a daunting task. We conducted a thorough review of journal articles, survey reports, and grey literature to extract information about the technologies used, the data collection and processing methods, and the performance and effectiveness of these instruments. We examined documents related to marine energy development, offshore wind farms, oil and gas offshore sites, and other marine industries around the world over the last 20 years. A total of 120 different technologies were identified across six main habitat categories: seafloor, sediment, infauna, epifauna, pelagic, and biofouling. The technologies were organized into 12 broad technology classes: acoustic, corer, dredge, grab, hook and line, net and trawl, plate, remote sensing, scrape samples, trap, visual, and others. Visual was the most common and the most diverse technology class, with applications across all six habitat categories. Technologies and sampling methods that are designed for working efficiently in energetic environments have greater success at marine energy sites. In addition, sampling designs and statistical analyses should be carefully thought through to identify differences in faunal assemblages and spatiotemporal changes in habitats.


Author(s):  
Marwane Rouway ◽  
Mostapha Tarfaoui ◽  
Nabil Chakhchaoui ◽  
Lhaj El Hachemi Omari ◽  
Fouzia Fraija ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8460
Author(s):  
Lenaïg G. Hemery ◽  
Andrea E. Copping ◽  
Dorian M. Overhus

Marine energy devices harness power from attributes of ocean water to form a sustainable energy source. Knowledge gaps remain about whether marine energy systems can affect the environment, adding another threat to animal populations and habitats already under pressure from climate change and anthropogenic activities. To date, potential environmental effects have been studied under the scope of stressor–receptor interactions, where moving parts of, or emissions from, a system could harm the animals, habitats, and natural processes. While crucial for understanding effects and identifying knowledge gaps, this approach misses a holistic view of what animals may experience in the presence of marine energy systems. We look at six biological consequences and forces that drive the health of an animal population and the effects expected from marine energy development: success of early life stages; changes in competitive capabilities; growth and survival based on food availability; susceptibility to predators; injury or death; and reproductive success. We use case studies to develop this approach, focusing on a variety of marine animals. An approximate level of risk is assigned for each interaction based on the biological consequences. This work highlights the need to examine the effects of marine energy development on animal populations within their natural habitats.


2021 ◽  
Author(s):  
Dhruv Bhatnagar ◽  
Saptarshi Bhattacharya ◽  
Danielle Preziuso ◽  
Sarmad Hanif ◽  
Rebecca O'Neil ◽  
...  

2021 ◽  
Author(s):  
L.A. Sanchez-Conde ◽  
J.R. Rodriguez-Rodriguez ◽  
N.M. Salgado-Herrera ◽  
J.C. Dominguez-Lozoya ◽  
E.G. Mendoza-Baldwin

2021 ◽  
Vol 926 (1) ◽  
pp. 012073
Author(s):  
Y A Rahman ◽  
Setiyawan

Abstract With seas area of 70% larger than land, Indonesia encourages the potential for marine energy as an alternative to renewable energy. One of the technologies developed to utilize ocean energy is the Oscillating Water Column (OWC). The OWC method can convert ocean wave energy by using an oscillation column directing wave energy through the OWC door opening to generate electricity. This study aims to determine the magnitude of the waves utilized in West Central Sulawesi’s seas region include Alindau beach, Marana beach, and Kaliburu beach. Based on wave forecasting using wind data for five years, the maximum wave height for five years is 0.20 m. Estimated power from the calculation results obtained a rate significant with an efficiency level of 11.97%. Alindau is a potential location to develop wave energy.


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