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Journal articles on the topic 'Towed Camera'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Cresswell, Anna K., Nicole M. Ryan, Andrew J. Heyward, et al. "A quantitative comparison of towed-camera and diver-camera transects for monitoring coral reefs." PeerJ 9 (April 14, 2021): e11090. http://dx.doi.org/10.7717/peerj.11090.

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Novel tools and methods for monitoring marine environments can improve efficiency but must not compromise long-term data records. Quantitative comparisons between new and existing methods are therefore required to assess their compatibility for monitoring. Monitoring of shallow water coral reefs is typically conducted using diver-based collection of benthic images along transects. Diverless systems for obtaining underwater images (e.g. towed-cameras, remotely operated vehicles, autonomous underwater vehicles) are increasingly used for mapping coral reefs. Of these imaging platforms, towed-came

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Hatcher, Gerald A., Jonathan A. Warrick, Christine J. Kranenburg, and Andrew C. Ritchie. "Accurate Maps of Reef-Scale Bathymetry with Synchronized Underwater Cameras and GNSS." Remote Sensing 15, no. 15 (2023): 3727. http://dx.doi.org/10.3390/rs15153727.

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We investigate the utility of towed underwater camera systems with tightly coupled Global Navigation Satellite System (GNSS) positions to provide reef-scale bathymetric models with millimeter to centimeter resolutions and accuracies with Structure-from-Motion (SfM) photogrammetry. Successful development of these techniques would allow for detailed assessments of benthic conditions, including the accretion and erosion of reefs and adjacent sediment deposits, without the need for ground control points. We use a multi-camera system towed by a small vessel to map over 70,000 m2 of complex shallow

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Jones, DOB, BJ Bett, RB Wynn, and DG Masson. "The use of towed camera platforms in deep-water science." Underwater Technology 28, no. 2 (2009): 41–50. http://dx.doi.org/10.3723/ut.28.041.

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Rudd, Jessica L., Tiago Bartolomeu, Haley R. Dolton, et al. "Basking shark sub-surface behaviour revealed by animal-towed cameras." PLOS ONE 16, no. 7 (2021): e0253388. http://dx.doi.org/10.1371/journal.pone.0253388.

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While biologging tags have answered a wealth of ecological questions, the drivers and consequences of movement and activity often remain difficult to ascertain, particularly marine vertebrates which are difficult to observe directly. Basking sharks, the second largest shark species in the world, aggregate in the summer in key foraging sites but despite advances in biologging technologies, little is known about their breeding ecology and sub-surface behaviour. Advances in camera technologies holds potential for filling in these knowledge gaps by providing environmental context and validating be

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Shortis, M. R., J. W. Seager, A. Williams, B. A. Barker, and M. Sherlock. "Using Stereo-Video for Deep Water Benthic Habitat Surveys." Marine Technology Society Journal 42, no. 4 (2008): 28–37. http://dx.doi.org/10.4031/002533208787157624.

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Towed body systems of various configurations have been used for many years to map the seabed. Prior to the last several years, single video camera systems were widely used to gather qualitative data, or collect often low-accuracy quantitative data using laser dot patterns projected into the field of view. The introduction of stereo-video systems has enabled the capture of accurate and reliable spatial information with estimates of accuracy and precision. CSIRO has recently adopted stereo-video on a towed body system used for habitat mapping and biodiversity survey work in the deep ocean (100 t

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Fornari, Daniel J. "A new deep-sea towed digital camera and multi-rock coring system." Eos, Transactions American Geophysical Union 84, no. 8 (2003): 69. http://dx.doi.org/10.1029/2003eo080001.

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Politikos, Dimitris V., Elias Fakiris, Athanasios Davvetas, Iraklis A. Klampanos, and George Papatheodorou. "Automatic detection of seafloor marine litter using towed camera images and deep learning." Marine Pollution Bulletin 164 (March 2021): 111974. http://dx.doi.org/10.1016/j.marpolbul.2021.111974.

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Barker, Bruce A. J., Ian Helmond, Nicholas J. Bax, Alan Williams, Stephanie Davenport, and Victoria A. Wadley. "A vessel-towed camera platform for surveying seafloor habitats of the continental shelf." Continental Shelf Research 19, no. 9 (1999): 1161–70. http://dx.doi.org/10.1016/s0278-4343(99)00017-5.

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Lauth, R. R., W. W. Wakefield, and K. Smith. "Estimating the density of thornyheads, Sebastolobus spp., using a towed video camera sled." Fisheries Research 70, no. 1 (2004): 39–48. http://dx.doi.org/10.1016/j.fishres.2004.06.009.

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10

Lindsay, Dhugal, Francesc Pagès, Jordi Corbera, et al. "The anthomedusan fauna of the Japan Trench: preliminary results fromin situsurveys with manned and unmanned vehicles." Journal of the Marine Biological Association of the United Kingdom 88, no. 8 (2008): 1519–39. http://dx.doi.org/10.1017/s0025315408002051.

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Modernin situsurvey technologies such as crewed submersibles, remotely-operated vehicles (ROVs), towed camera arrays, and visual/video plankton recorders (VPRs) were used to characterize the dominant anthomedusan species off the eastern seaboard of Japan. Notes on the taxonomy, distribution, behaviour and interspecies interactions are presented for the four observed species:Euphysa japonica, E. flammea, Calycopsis nematophoraandPandea rubra. A new generic definition for the genusCalycopsisis proposed. The possibility of run-on, cascading detrimental effects of oceanic acidification on midwater

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Broadbent, HA, SE Grasty, RF Hardy, et al. "West Florida Shelf pipeline serves as sea turtle benthic habitat based on in situ towed camera observations." Aquatic Biology 29 (January 30, 2019): 17–31. http://dx.doi.org/10.3354/ab00722.

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The use of marine offshore benthic habitats by sea turtles is poorly characterized due to the difficulty of obtaining in situ data. Understanding benthic habitat use that is important to the species’ reproduction, foraging, and migrations is critical for guiding management decisions. A towed camera-based assessment survey system (C-BASS) equipped with environmental sensors was used to characterize and assess benthic habitats on the West Florida Shelf (WFS) from 2014 to 2018. During these cruises, sea turtles were opportunistically observed during the surveys, and critical in situ data such as

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Polanco F., Andrea, Luisa F. Dueñas, Jorge Leon, and Vladimir Puentes. "New records and update on the geographic distribution of the Bonyeared Assfish, Acanthonus armatus Günther, 1878 (Ophidiidae, Neobythitinae), in the Caribbean region." Check List 15, no. 5 (2019): 767–72. http://dx.doi.org/10.15560/15.5.767.

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Acanthonus armatus Günther, 1878 is reported for the first time in the southwestern Caribbean region, off Colombia. Remote Operate Vehicle videos and towed camera still photographs captured 13 images of A. armatus between 2215 and 2564 m. These are the first records of the species in the Caribbean continental coast of Colombia, representing a range extension to the southwestern Caribbean region, since previous records are from the northeastern Caribbean. Some photos of the specimens and the current distribution of the species in the Caribbean region are provided and reviewed.

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Polanco, F. Andrea, Luisa F. Dueñas, Jorge Leon, and Vladimir Puentes. "New records and update on the geographic distribution of the Bonyeared Assfish, Acanthonus armatus Günther, 1878 (Ophidiidae, Neobythitinae), in the Caribbean region." Check List 15, no. (5) (2019): 767–72. https://doi.org/10.15560/15.5.767.

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<em>Acanthonus armatus </em>Günther, 1878 is reported for the first time in the southwestern Caribbean region, off Colombia. Remote Operate Vehicle videos and towed camera still photographs captured 13 images of <em>A. armatus </em>between 2215 and 2564 m. These are the first records of the species in the Caribbean continental coast of Colombia, representing a range extension to the southwestern Caribbean region, since previous records are from the northeastern Caribbean. Some photos of the specimens and the current distribution of the species in the Caribbean region are provided and revi

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Williams, Alan, Franziska Althaus, and Thomas A. Schlacher. "Towed camera imagery and benthic sled catches provide different views of seamount benthic diversity." Limnology and Oceanography: Methods 13, no. 2 (2015): e10007. http://dx.doi.org/10.1002/lom3.10007.

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Cruz-Marrero, Wilmelie, Chelsea A. Harms-Tuohy, Richard S. Appeldoorn, and Bradley G. Stevens. "Comparison of video camera sled with diver surveys for queen conch Lobatus gigas density estimates in the west coast of Puerto Rico." Bulletin of Marine Science 96, no. 4 (2020): 641–54. http://dx.doi.org/10.5343/bms.2019.0087.

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Queen conch Lobatus gigas is one the most important fishery species in the Caribbean. Currently, queen conch harvest is prohibited in the Exclusive Economic Zone (EEZ) in Puerto Rico. Since 1996, abundance estimates in Puerto Rico have been conducted by scuba divers at intervals of 5 yrs. Yet diver surveys are limited by depth and time. In contrast, underwater video or camera surveys are not constrained by these factors and also provide a permanent photo record of observations. We conducted a survey of queen conch density on the western shelf of Puerto Rico in 2016 using two different methods:

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Knight, Ashley, James Lindholm, Andrew DeVogelaere, and Fred Watson. "An Approach to the Collection, Processing, and Analysis of Towed Camera Video Imagery for Marine Resource Management." Marine Technology Society Journal 48, no. 4 (2014): 86–95. http://dx.doi.org/10.4031/mtsj.48.4.1.

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AbstractA variety of video and photographic imaging platforms are used to survey seafloor habitats and organisms beyond the effective depth of most SCUBA diving (>30 m). Each platform has benefits and shortcomings, with the most frequently limiting factors being (a) access to the most advanced instruments, (b) response of organisms, and (c) resolution of organism identification. Here, we describe the approaches used to collect, process, and analyze video imagery collected with a simple towed camera sled in the Monterey Bay National Marine Sanctuary as part of a larger, ongoing characterizat

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Leybourne, Maatthew I., and Nancy A. Van Wagoner. "Volcanism, age, and hydrothermal deposits of the West Valley Segment, Juan de Fuca Ridge." Canadian Journal of Earth Sciences 29, no. 11 (1992): 2346–52. http://dx.doi.org/10.1139/e92-183.

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West Valley is a rift valley that forms part of the northernmost segment of Juan de Fuca Ridge. The valley is about 8 km wide, has a relief of 400–800 m along the valley walls, and has been interpreted to have formed recently by tectonic collapse. As part of a comprehensive study of West Valley, photographic images were obtained using a deeply towed camera sled containing a black and white video camera and a colour 35 mm camera. Photos were analyzed for volcanic form and type, tectonic features, and the relative age of the sea floor. Pillow and lobate lavas were the most common flow types obse

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Waller, Rhian G., Kathryn M. Scanlon, and Laura F. Robinson. "Cold-Water Coral Distributions in the Drake Passage Area from Towed Camera Observations – Initial Interpretations." PLoS ONE 6, no. 1 (2011): e16153. http://dx.doi.org/10.1371/journal.pone.0016153.

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Mohamed, Hassan, Kazuo Nadaoka, and Takashi Nakamura. "Towards Benthic Habitat 3D Mapping Using Machine Learning Algorithms and Structures from Motion Photogrammetry." Remote Sensing 12, no. 1 (2020): 127. http://dx.doi.org/10.3390/rs12010127.

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The accurate classification and 3D mapping of benthic habitats in coastal ecosystems are vital for developing management strategies for these valuable shallow water environments. However, both automatic and semiautomatic approaches for deriving ecologically significant information from a towed video camera system are quite limited. In the current study, we demonstrate a semiautomated framework for high-resolution benthic habitat classification and 3D mapping using Structure from Motion and Multi View Stereo (SfM-MVS) algorithms and automated machine learning classifiers. The semiautomatic clas

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Schoening, Timm, Autun Purser, Daniel Langenkämper, et al. "Megafauna community assessment of polymetallic-nodule fields with cameras: platform and methodology comparison." Biogeosciences 17, no. 12 (2020): 3115–33. http://dx.doi.org/10.5194/bg-17-3115-2020.

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Abstract. With the mining of polymetallic nodules from the deep-sea seafloor once more evoking commercial interest, decisions must be taken on how to most efficiently regulate and monitor physical and community disturbance in these remote ecosystems. Image-based approaches allow non-destructive assessment of the abundance of larger fauna to be derived from survey data, with repeat surveys of areas possible to allow time series data collection. At the time of writing, key underwater imaging platforms commonly used to map seafloor fauna abundances are autonomous underwater vehicles (AUVs), remot

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Borrero-Pérez, Giomar H., Luisa F. Dueñas, Jorge León, and Vladimir Puentes. "Deep-sea holothurians (Echinodermata, Holothuroidea) from the Colombian Southern Caribbean Sea." Check List 16, no. 3 (2020): 535–51. http://dx.doi.org/10.15560/16.3.535.

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Fifteen morphotypes of deep-sea holothurians were documented by photography or videography at depths of 596&ndash;2,566 m, using Remote Operated Vehicles (ROV) video surveys and towed camera transects, during hydrocarbon exploratory activities in the Colombian Southern Caribbean. Most of the morphotypes were identified to the species level based on the images. The species belong to four orders, Apodida (1 species), Persiculida (3 species), Elasipodida (8 species), and Synallactida (3 species). Four species, three genera, and three families are reported for the first time in the Colombian C

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Borrero-Pérez, Giomar H., Luisa F. Dueñas, Jorge León, and Vladimir Puentes. "Deep-sea holothurians (Echinodermata, Holothuroidea) from the Colombian Southern Caribbean Sea." Check List 16, no. (3) (2020): 535–51. https://doi.org/10.15560/16.3.535.

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Fifteen morphotypes of deep-sea holothurians were documented by photography or videography at depths of 596–2,566 m, using Remote Operated Vehicles (ROV) video surveys and towed camera transects, during hydrocarbon exploratory activities in the Colombian Southern Caribbean. Most of the morphotypes were identified to the species level based on the images. The species belong to four orders, Apodida (1 species), Persiculida (3 species), Elasipodida (8 species), and Synallactida (3 species). Four species, three genera, and three families are reported for the first time in the Colombian Carib

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Moh, Taejun, Namdo Jang, Seok Jang, and Jin Hyung Cho. "Application of a Winch-type Towed Acoustic Sensor to a Wave-powered Unmanned Surface Vehicle." Defence Science Journal 67, no. 1 (2016): 125. http://dx.doi.org/10.14429/dsj.67.10577.

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Although many countries have focused on anti-submarine warfare for several decades, underwater submarines can hardly be detected by current assets such as patrol aircraft, surface ships and fixed underwater surveillance systems. Due to the difficult conditions of the oceanic environment and the relative quietness of submarines, existing acoustic surveillance platforms are not able to fully cover their mission areas. To fill in the gaps, a winch-type towed acoustic sensor system was developed and integrated into a wave-powered unmanned surface vehicle by the Korea Institute of Ocean Science and

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Miyao, Yasuyuki, and Atsuhiko Isobe. "A Combined Balloon Photography and Buoy-Tracking Experiment for Mapping Surface Currents in Coastal Waters." Journal of Atmospheric and Oceanic Technology 33, no. 6 (2016): 1237–50. http://dx.doi.org/10.1175/jtech-d-15-0113.1.

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AbstractA novel observational technique to map surface ocean currents at high spatial resolution in narrow regions is developed. Low-altitude remote sensing using a digital camera suspended from a vessel-towed balloon is used to track trajectories of floating buoys deployed on the ocean. Surface-current velocities are thereafter computed by sequentially moving buoy locations on photo images converted into ground (Cartesian) coordinates. Field experiments were conducted in July and August 2013 using a balloon towed by a research vessel on the Seto Inland Sea. The image-derived currents were com

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Chiu, Linus, Chau-Chang Wang, Hsin-Hung Chen, Andrea Y. Chang, and Chung-Ray Chu. "Near bottom self-calibrated measurement of normal reflection coefficients by an integrated deep-towed camera/acoustical system." Journal of the Acoustical Society of America 136, no. 4 (2014): 2179. http://dx.doi.org/10.1121/1.4899898.

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Wright, I. C., P. Stoffers, M. Hannington, et al. "Towed-camera investigations of shallow–intermediate water-depth submarine stratovolcanoes of the southern Kermadec arc, New Zealand." Marine Geology 185, no. 3-4 (2002): 207–18. http://dx.doi.org/10.1016/s0025-3227(01)00285-7.

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Romoth, Katharina Romoth, Mayya Gogina, Kolja Beisiegel, Alexander Darr, and Michael Lothar Zettler. "First record of the common sun star Crossaster papposus (L., 1767) in the Baltic Sea in over 100 years." Oceanological and Hydrobiological Studies 51, no. 2 (2022): 143–48. http://dx.doi.org/10.26881/oandhs-2022.2.02.

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The rare in the German North and Baltic Sea waters and strictly protected sea star Crossaster papposus was found in 2019 and 2021 during monitoring activities in a marine protected area. This unique observation was achieved by using towed camera platform imagery along a transect in the Fehmarn Belt, which allows monitoring of a much larger area of the seafloor compared to traditional invasive grab and dredge sampling. The last time C. papposus was documented in this area was in 1871, indicating the rarity of this species in the Baltic Sea. Possible explanations for such rare records of the occ

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Purser, Autun, Simon Dreutter, Huw Griffiths, et al. "Seabed video and still images from the northern Weddell Sea and the western flanks of the Powell Basin." Earth System Science Data 13, no. 2 (2021): 609–15. http://dx.doi.org/10.5194/essd-13-609-2021.

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Abstract. Research vessels equipped with fibre optic and copper-cored coaxial cables support the live onboard inspection of high-bandwidth marine data in real time. This allows for towed still-image and video sleds to be equipped with latest-generation higher-resolution digital camera systems and additional sensors. During RV Polarstern expedition PS118 in February–April 2019, the recently developed Ocean Floor Observation and Bathymetry System (OFOBS) of the Alfred Wegener Institute was used to collect still-image and video data from the seafloor at a total of 11 predominantly ice-covered loc

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Flores, Claudia H., and Uri S. ten Brink. "Photogrammetry of the Deep Seafloor from Archived Unmanned Submersible Exploration Dives." Journal of Marine Science and Engineering 12, no. 8 (2024): 1250. http://dx.doi.org/10.3390/jmse12081250.

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Large amounts of video images have been collected for decades by scientific and governmental organizations in deep (>1000 m) water using manned and unmanned submersibles and towed cameras. The collected images were analyzed individually or were mosaiced in small areas with great effort. Here, we provide a workflow for utilizing modern photogrammetry to construct virtual geological outcrops hundreds or thousands of meters in length from these archived video images. The photogrammetry further allows quantitative measurements of these outcrops, which were previously unavailable. Although photo

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Lembke, Chad, Sarah Grasty, Alex Silverman, Heather Broadbent, Steven Butcher, and Steven Murawski. "The Camera-Based Assessment Survey System (C-BASS): A towed camera platform for reef fish abundance surveys and benthic habitat characterization in the Gulf of Mexico." Continental Shelf Research 151 (December 2017): 62–71. http://dx.doi.org/10.1016/j.csr.2017.10.010.

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Mohamed, Hassan, Kazuo Nadaoka, and Takashi Nakamura. "Automatic Semantic Segmentation of Benthic Habitats Using Images from Towed Underwater Camera in a Complex Shallow Water Environment." Remote Sensing 14, no. 8 (2022): 1818. http://dx.doi.org/10.3390/rs14081818.

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Underwater image segmentation is useful for benthic habitat mapping and monitoring; however, manual annotation is time-consuming and tedious. We propose automated segmentation of benthic habitats using unsupervised semantic algorithms. Four such algorithms––Fast and Robust Fuzzy C-Means (FR), Superpixel-Based Fast Fuzzy C-Means (FF), Otsu clustering (OS), and K-means segmentation (KM)––were tested for accuracy for segmentation. Further, YCbCr and the Commission Internationale de l’Éclairage (CIE) LAB color spaces were evaluated to correct variations in image illumination and shadow effects. Be

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Walcott, J., S. Eckert, HA Oxenford, and JA Horrocks. "Use of a towed camera system to investigate benthic habitat use by inter-nesting female hawksbill sea turtles." Endangered Species Research 24, no. 2 (2014): 159–70. http://dx.doi.org/10.3354/esr00597.

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Purser, Autun, Yann Marcon, Simon Dreutter, et al. "Ocean Floor Observation and Bathymetry System (OFOBS): A New Towed Camera/Sonar System for Deep-Sea Habitat Surveys." IEEE Journal of Oceanic Engineering 44, no. 1 (2019): 87–99. http://dx.doi.org/10.1109/joe.2018.2794095.

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Beisiegel, Kolja, Alexander Darr, Michael L. Zettler, René Friedland, Ulf Gräwe, and Mayya Gogina. "Understanding the spatial distribution of subtidal reef assemblages in the southern Baltic Sea using towed camera platform imagery." Estuarine, Coastal and Shelf Science 207 (July 2018): 82–92. http://dx.doi.org/10.1016/j.ecss.2018.04.006.

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Hoving, Henk-Jan, Svenja Christiansen, Eduard Fabrizius, et al. "The Pelagic In situ Observation System (PELAGIOS) to reveal biodiversity, behavior, and ecology of elusive oceanic fauna." Ocean Science 15, no. 5 (2019): 1327–40. http://dx.doi.org/10.5194/os-15-1327-2019.

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Abstract. There is a need for cost-efficient tools to explore deep-ocean ecosystems to collect baseline biological observations on pelagic fauna (zooplankton and nekton) and establish the vertical ecological zonation in the deep sea. The Pelagic In situ Observation System (PELAGIOS) is a 3000 m rated slowly (0.5 m s−1) towed camera system with LED illumination, an integrated oceanographic sensor set (CTD-O2) and telemetry allowing for online data acquisition and video inspection (low definition). The high-definition video is stored on the camera and later annotated using software and related t

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Spencer, Mara L., Allan W. Stoner, Clifford H. Ryer, and J. Eric Munk. "A towed camera sled for estimating abundance of juvenile flatfishes and habitat characteristics: Comparison with beam trawls and divers." Estuarine, Coastal and Shelf Science 64, no. 2-3 (2005): 497–503. http://dx.doi.org/10.1016/j.ecss.2005.03.012.

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Dueñas, Luisa, Cristina Cedeño-Posso, Alejandro Grajales, et al. "First visual occurrence data for deep-sea cnidarians in the South-western Colombian Caribbean." Biodiversity Data Journal 7 (May 7, 2019): e33091. https://doi.org/10.3897/BDJ.7.e33091.

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Attention to the deep-sea environment has increased dramatically in the last decade due to the rising interest in natural resource exploitation. Although Colombia holds a large submerged territory, knowledge of the seabed and its biodiversity beyond 1,000 m depth is very limited. During 2015–2017, Anadarko Colombia Company (ACC) carried out hydrocarbon exploratory activities in the South-western Colombian Caribbean, at depths between 375 m and 2,565 m. Capitalising on available data resources from these activities, several cnidarian species were observed in ROV and towed camera surveys. We ana

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Neat, Francis C., Alan J. Jamieson, Heather A. Stewart, et al. "Visual evidence of reduced seafloor conditions and indications of a cold-seep ecosystem from the Hatton–Rockall basin (NE Atlantic)." Journal of the Marine Biological Association of the United Kingdom 99, no. 2 (2018): 271–77. http://dx.doi.org/10.1017/s0025315418000115.

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High definition video from a towed camera system was used to describe the deep-sea benthic habitats within an elongate depression located at the western margin of Rockall Bank in the Hatton–Rockall Basin. At depths greater than 1190 m, an extensive area (10 km long by 1.5 km wide) of what appeared to be reduced sediments, bacterial mats and flocculent matter indicated possible cold-seep habitat. Plumes of sediment-rich fluid were observed alongside raised elongate features that gave topographic relief to the otherwise flat seafloor. In the deepest section of the depression (1215 m) dense flocc

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Clayton, Lena, and Glen Dennison. "Inexpensive Video Drop-camera for Surveying Sensitive Benthic Habitats: Applications from Glass Sponge (Hexactinellida) Reefs in Howe Sound, British Columbia." Canadian Field-Naturalist 131, no. 1 (2017): 46–54. http://dx.doi.org/10.22621/cfn.v131i1.1783.

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Where marine waters are shallow and bathymetric features are steep, the typically employed multi-beam side scan sonar is not always reliable for identifying complex biological structures. Here, we present a cost-efficient method used in Howe Sound, British Columbia, for bathymetric mapping, exploration, and ground-truthing of glass sponge bioherms. A simple depth sounder and software package was used to produce bathymetric maps. From these maps, prospective sites were selected and surveyed to investigate bioherm presence with a simple drop-camera towed off the bow of a small drifting vessel du

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HONDA, NAOTO. "Development of a system for counting populations and measuring the size of giant jellyfish using a towed upward-looking camera." NIPPON SUISAN GAKKAISHI 81, no. 6 (2015): 946–57. http://dx.doi.org/10.2331/suisan.81.946.

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Lefebvre, A., C. E. L. Thompson, K. J. Collins, and C. L. Amos. "Use of a high-resolution profiling sonar and a towed video camera to map a Zostera marina bed, Solent, UK." Estuarine, Coastal and Shelf Science 82, no. 2 (2009): 323–34. http://dx.doi.org/10.1016/j.ecss.2009.01.027.

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Macaulay, Gavin J., Rudy J. Kloser, and Tim E. Ryan. "In situ target strength estimates of visually verified orange roughy." ICES Journal of Marine Science 70, no. 1 (2012): 215–22. http://dx.doi.org/10.1093/icesjms/fss154.

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Abstract Macaulay, G. J., Kloser, R. J., and Ryan, T. E. 2013. In situ target strength estimates of visually verified orange roughy. – ICES Journal of Marine Science, 70:215–222. The first estimates of orange roughy (Hoplostethus atlanticus) target strength at 38 and 120 kHz with visual verification were obtained from a self-contained echosounder and video camera system affixed to a demersal trawl towed through dense aggregations of spawning orange roughy. Mean target strength estimates were obtained from 24 tracks of orange roughy containing 83 echoes. The mean target strength at 38 kHz was –

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Doray, Mathieu, Laurent Berger, Naig Le Bouffant, et al. "A method for controlled target strength measurements of pelagic fish, with application to European anchovy (Engraulis encrasicolus)." ICES Journal of Marine Science 73, no. 8 (2016): 1987–97. http://dx.doi.org/10.1093/icesjms/fsw084.

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Abstract Measuring fish target strength (TS) in the wild is challenging because: (i) TS varies versus physical (orientation relative to the incident sound wave, size, and depth) and physiological fish attributes (maturity and condition), (ii) the target species and its aforementioned attributes are difficult to assess in near real time, and (iii) in the case of packed fish schools, accepted echoes may originate from multiple unresolved targets. We propose a method for controlled TS measurements of densely packed small pelagic fish during daytime, based on the joint use of a Remotely Operated T

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Mohamed, Hassan, Kazuo Nadaoka, and Takashi Nakamura. "Assessment of Machine Learning Algorithms for Automatic Benthic Cover Monitoring and Mapping Using Towed Underwater Video Camera and High-Resolution Satellite Images." Remote Sensing 10, no. 5 (2018): 773. http://dx.doi.org/10.3390/rs10050773.

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Lauth, R. R., J. Ianelli, and W. W. Wakefield. "Estimating the size selectivity and catching efficiency of a survey bottom trawl for thornyheads, Sebastolobus spp. using a towed video camera sled." Fisheries Research 70, no. 1 (2004): 27–37. http://dx.doi.org/10.1016/j.fishres.2004.06.010.

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Puzenat, Valentine, Nathalie Feuillet, Jean-Christophe Komorowski, et al. "Volcano-tectonic structures of Mayotte’s upper submarine slope: insights from high-resolution bathymetry and in-situ imagery from a deep-towed camera." Comptes Rendus. Géoscience 354, S2 (2022): 1–24. http://dx.doi.org/10.5802/crgeos.175.

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Joo, Jongmin, Seung-Sep Kim, Jee Woong Choi, et al. "Seabed Mapping Using Shipboard Multibeam Acoustic Data for Assessing the Spatial Distribution of Ferromanganese Crusts on Seamounts in the Western Pacific." Minerals 10, no. 2 (2020): 155. http://dx.doi.org/10.3390/min10020155.

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Cobalt-rich ferromanganese crusts (Fe–Mn crusts), potential economic resources for cobalt, nickel, platinum, and other rare metals, are distributed on the surface of seamounts, ridges, and plateaus. Distribution of Fe–Mn crust deposits and their geomorphological characteristics are prerequisites to selecting possible mining sites and to predicting the environmental impact of deep-sea mining activity. Here, we map the spatial distribution of Fe–Mn crust deposits on seamount summits and flanks in the Western Pacific using shipboard multibeam echo sounder (MBES) data and seafloor images from a de

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Yu, Gordon, and John Parianos. "Empirical Application of Generalized Rayleigh Distribution for Mineral Resource Estimation of Seabed Polymetallic Nodules." Minerals 11, no. 5 (2021): 449. http://dx.doi.org/10.3390/min11050449.

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An efficient empirical statistical method is developed to improve the process of mineral resource estimation of seabed polymetallic nodules and is applied to analyze the abundance of seabed polymetallic nodules in the Clarion Clipperton Zone (CCZ). The newly proposed method is based on three hypotheses as the foundation for a model of “idealized nodules”, which was validated by analyzing nodule samples collected from the seabed within the Tonga Offshore Mining Limited (TOML) exploration contract. Once validated, the “idealized nodule” model was used to deduce a set of empirical formulae for pr

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Tunnicliffe, Verena, and R. Gordon Jensen. "Distribution and behaviour of the spider crab Macroregonia macrochira Sakai (Brachyura) around the hydrothermal vents of the northeast Pacific." Canadian Journal of Zoology 65, no. 10 (1987): 2443–49. http://dx.doi.org/10.1139/z87-369.

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Over 200 individuals of the majid crab Macroregonia macrochira Sakai, 1978 were examined on submersible and towed camera photographs from the Juan de Fuca and Explorer ridges. The crab is found at bathyal depths and shows a preference for hard substrata. Its attraction to the food source at hydrothermal vents is reflected in the high population concentrations around vent sites of the northeast Pacific. Mature males, distinguished by their large chelipeds, tend to be widely dispersed while the female–juvenile group clusters in and around vents. Stomachs of captured specimens contain remains of

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Baumgartner, Henry. "The Sub that Vanished." Mechanical Engineering 121, no. 08 (1999): 56–58. http://dx.doi.org/10.1115/1.1999-aug-3.

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This article discusses how sonar and an undersea rover helped Israel discover the vanished INS Dakar, an Israeli submarine that was purchased from the British Royal Navy. In February 1999, the Israelis invited bids on a contract, which was won by Nauticos, and the operation got started again shortly thereafter. The idea was to continue to search the “box,” the area of ocean where the committee had concluded the sub was most likely to be found. This would require a search of the area with deep-towed sonar, with likely spots more closely investigated by a camera-carrying robot craft. Navigation

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