Results 51 to 60 of about 23,689 (244)

Angular dependence of 12-kHz seafloor acoustic backscatter [PDF]

, 1991
The angular dependence of seafloor acoustic backscatter,measured with a 12‐kHz multi narrow‐beam echo‐sounder at two sites in the central North Pacific with water depths of 1500 and 3100 m, respectively, has been determined for incidence angles between 0°
Alexandrou, Dimitri, de Moustier, Christian   +1 more
core   +2 more sources

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

Seafloor Habitat Mapping by Combining Multiple Features From Optic and Acoustic Data: A Case Study From Ganquan Island, South China Sea

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Seafloor habitat mapping plays an important role in marine environment monitoring and marine geological research. Optic and acoustic remote sensing are becoming common survey tools in seafloor habitat mapping.
Jiaxin Wan, Zhiliang Qin, Xiaodong Cui, Muhammad Yasir, Benjun Ma   +4 more
doaj   +1 more source

UVSD: Software for Detection of Color Underwater Features [PDF]

, 2005
Underwater Video Spot Detector (UVSD) is a software package designed to analyze underwater video for continuous spatial measurements (path traveled, distance to the bottom, roughness of the surface etc.) Laser beams of known geometry are often used in ...
Mamaenko, Anton, Rzhanov, Yuri, Yoklavich, M   +2 more
core   +1 more source

Deep refuges: the distribution of marine fish in warming subtropics

Ecography, EarlyView.
In light of global climate change, identifying critical marine habitats and conserving them is essential. Marine conservation planning recommends designating cooler habitats as marine protected areas. The ‘deep‐reef refugia' hypothesis suggests that deeper, suitable habitats may allow species to undergo the evolutionary changes necessary to adapt to ...
Anat Tsemel, Stephane Martinez, Shai Einbinder, Hagai Nativ, Avery Deveto, Ole J. Sorensen, Ido Izhaki, Dan Tchernov   +7 more
wiley   +1 more source

The vertical distribution and biological transport of marine microplastics across the epipelagic and mesopelagic water column. [PDF]

, 2019
Plastic waste has been documented in nearly all types of marine environments and has been found in species spanning all levels of marine food webs. Within these marine environments, deep pelagic waters encompass the largest ecosystems on Earth. We lack a
Choy, C Anela, Erwin, Benjamin, Firl, Evan, Gagne, Tyler O, Halden, Rolf U, Hamilton, J Andrew, Katija, Kakani, Lisin, Susan E, Robison, Bruce H, Rolsky, Charles, S Van Houtan, Kyle   +10 more
core   +2 more sources

Flexible ionic pressure sensors: From migration‐electronic mechanisms to emerging iontronic paradigms

InfoMat, EarlyView.
Mechanisms, materials, structures, and applications of the FIPSs. Abstract Flexible ionic pressure sensors (FIPS) have emerged as promising candidates for bridging the gap between electronics and biologically compatible interfaces. Unlike previous reviews, which focused primarily on materials or devices, this review presents a classification of FIPS ...
Mengjie Wang, Yanan Ma, Jia Liu, Li Xu, Li Wen, Ranyun Wu, Yongfa Cheng, Liang Li, Siliang Wang, Yang Yue, Zhixiang Huang   +10 more
wiley   +1 more source

Linking Sidescan Sonar Backscatter Intensity to Seafloor Sediment Grain Size Fractions: Insight from Dongluo Island

Journal of Marine Science and Engineering
Accurate characterization of seafloor sediment properties is critical for marine engineering design, resource assessment, and environmental management. Sidescan sonar offers efficient wide-area mapping capabilities, yet establishing robust quantitative ...
Songyang Ma, Bin Li, Peng Wan, Chengfu Wei, Zhijian Chen, Ruikeng Li, Zhenqiang Zhao, Chi Chen, Jiangping Yang, Jun Tu, Mingming Wen   +10 more
doaj   +1 more source

Quantifying the Physical Impact of Bottom Trawling Based on High-Resolution Bathymetric Data

Remote Sensing, 2022
Bottom trawling is one of the most significant anthropogenic pressures on physical seafloor integrity. The objective classification of physical impact is important to monitor ongoing fishing activities and to assess the regeneration of seafloor integrity
Mischa Schönke, David Clemens, Peter Feldens   +2 more
doaj   +1 more source

Near bottom sediment characterization offshore SW San Clemente Island [PDF]

, 2002
Normal incidence, 23.5 kHz seafloor acoustic backscatter data and bottom video were measured with the Deep Tow instrument package of the Scripps Institution of Oceanography in 100 meter water depth south of San Clemente Island, CA.
de Moustier, Christian, Sternlicht, Daniel D   +1 more
core   +1 more source