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Simulation Study of Fish Counting by Multiple Scanning Sonars in a Fish Farm

Yoshiaki Taniguchi, Faculty of Science and Engineering, Kindai University, Japan, Kansei Oki
2020 Journal of Communications  
In this study, we evaluated the use of multiple scanning sonars to estimate the number of fish in a cage.  ...  The fundamental performance of our fish counting system was evaluated using a simulation approach by changing the number of fish, number of sonars, and size of fish.  ...  Oki implemented the simulation code. K. Oki obtained the results and analyzed the simulation data. All authors had approved the final version.  ... 
doi:10.12720/jcm.15.2.164-170 fatcat:m4dj2rcssffqrhil2ryrvt5osy

Nonintrusive methods for biomass estimation in aquaculture with emphasis on fish: a review

Daoliang Li, Yinfeng Hao, Yanqing Duan
2019 Reviews in Aquaculture  
Fish biomass estimation is one of the most common and important practices in aquaculture.  ...  Machine vision, acoustics, environmental DNA and resistivity counter provide the possibility of developing nonintrusive, faster and cheaper methods for in situ estimation of fish biomass.  ...  Acknowledgements This work was supported by China-UK Programme 'Next generation precision aquaculture: R&D on intelligent measurement, control and equipment technologies'  ... 
doi:10.1111/raq.12388 fatcat:34zvjmhftzfpzflurzhx6uix6e

Counting Fish and Dolphins in Sonar Images Using Deep Learning [article]

Stefan Schneider, Alex Zhuang
2020 arXiv   pre-print
We propose a novel approach to calculating fish abundance using deep learning for fish and dolphin estimates from sonar images taken from the back of a trolling boat.  ...  We consider a data set of 143 images ranging from 0-34 fish, and 0-3 dolphins provided by the Fund Amazonia research group.  ...  The images are constructed in real time by a side-scan sonar that is able to scan a sweeping angle of 60 degrees within the water.  ... 
arXiv:2007.12808v1 fatcat:prvdywdp5vcr7dcy6bgs3v64mq

Overview of the application of computer vision technology in fish farming

Alexey Petrov, Anton Popov, D. Rudoy, S. Ignateva
2020 E3S Web of Conferences  
The main issues that need to be addressed in development of modern digital technologies in the fish farming industry using natural and artificial reservoirs are highlighted.  ...  The main directions in the area of commercial fish farming that need active adaptation of computer vision to deal with applied problems, are identified.  ...  ., (2016) conducted a study aimed at developing the tracking of multiple fish in three-dimensional space using sensors.  ... 
doi:10.1051/e3sconf/202017502015 fatcat:tibsocqmgbbuha52q4blkkgawq

Survey of Fish Behavior Analysis by Computer Vision

Bingshan Niu, Guangyao Li, Fang Peng, Jing Wu, Long Zhang, Zhenbo Li
2018 Journal of Aquaculture Research & Development  
Acknowledgments This research is financially supported by the National Science and Technology Support (2012BAD35B07).  ...  Gerlotto observed clupeid schooling behavior by vertical scanning multi-beam sonar, which builds 3D morphology of internal structures [86] , to evaluate fish schools' shapes and dimensions in such a way  ...  such as AUV, vertical scan multi-beam sonar and laser line scan system to estimate the size of the fish and quantity, above all is the development of the fish schooling behavior for so many years.  ... 
doi:10.4172/2155-9546.1000534 fatcat:sovnx7r6gzhzja5abn2mdlyz5m

Information fusion in aquaculture: a state-of the art review

Shahbaz Gul HASSAN, Murtaza HASAN, Daoliang LI
2016 Frontiers of Agricultural Science and Engineering  
Efficient fish feeding is currently one of biggest challenges in aquaculture to enhance the production of fish quality and quantity.  ...  Information fusion in aquaculture is a growing field of research that is used to enhance the performance of an "industrialized" ecosystem.  ...  This article is a review and does not contain any studies with human or animal subjects performed by any of the authors.  ... 
doi:10.15302/j-fase-2016111 fatcat:uyh3lnukmfb3bhofgxv66uhkwq

SIMNORAT - Bay of Biscay case study - Mapping exposure risk of marine megafauna to concomitant pressures (D16)

F. Bliard, C. Dalleau, F. Quemmerais-Amice, A. Gimard, N. Alloncle., M. Campillos-Llanos, C. Cervera-Núñez, M. Gómez-Ballesteros, JM. Grassa, A. Lloret, C. Murciano, A. Punzón
2019 Zenodo  
These species are common in this area, have a high mobility and face multiple cross-border anthropogenic pressures.  ...  Establishing case studies on approaches to MSP implementation Sub-component: CS#1 Assessment of concomitant pressures in the Bay of Biscay The SIMNORAT case study "Bay of Biscay" aims to demonstrate the  ...  The joint consideration of multiple snapshots allows for the statistical assessment of maritime traffic in the study area for a defined time period.  ... 
doi:10.5281/zenodo.2598149 fatcat:ucwlh4l3fnf6ngbawbi5zr5pgi

A new method to generate a high-resolution global distribution map of lake chlorophyll

Michael J. Sayers, Amanda G. Grimm, Robert A. Shuchman, Andrew M. Deines, David B. Bunnell, Zachary B. Raymer, Mark W. Rogers, Whitney Woelmer, David H. Bennion, Colin N. Brooks, Matthew A. Whitley, David M. Warner (+1 others)
2015 International Journal of Remote Sensing  
A new method to generate a high-resolution global distribution map of lake chlorophyll.  ...  The purpose of this work was to develop a semi continuous ship-board Autonomous Plankton Metabolic Monitor (APMM) to measure primary productivity (P) and respiration (R), and evaluate this system in two  ...  a Walz®PhytoPAM.  ... 
doi:10.1080/01431161.2015.1029099 fatcat:5uugnnzklrgtlam6gfq7gwlxsy

Using Multitemporal Imagery to Improve Mapping and Inventory of Forested Roads in Michigan's Upper Peninsula

David M. Banach, Colin N. Brooks, Mark A. Fedora
2016 Transportation Research Record  
The purpose of this work was to develop a semi continuous ship-board Autonomous Plankton Metabolic Monitor (APMM) to measure primary productivity (P) and respiration (R), and evaluate this system in two  ...  a Walz®PhytoPAM.  ...  These findings are augmented by side-scan sonar records collected annually over the same period.  ... 
doi:10.3141/2580-07 fatcat:hvnrxsqcwzgbjiogbyo6ltfcry

Real-time super-resolved 3D in turbid water using a fast range-gated CMOS camera

Petter Risholm, Jostein Thorstensen, Jens T. Thielemann, Kristin Kaspersen, Jon Tschudi, Chris Yates, Chris Softley, Igor Abrosimov, Jonathan Alexander, Karl Henrik Haugholt
2018 Applied Optics  
We show depth estimation results when scanning a range of 8 m (typically 1-9 m) at 10 Hz. The results are dependent on the water quality.  ...  A depth estimation algorithm has been carefully designed to handle the effects of light scattering in water, i.e., forward and backward scattering.  ...  We show here some qualitative results from imaging fish in a fish farm. The fish were salmon, approximately 50 cm long and with a mass of ∼2 kg.  ... 
doi:10.1364/ao.57.003927 pmid:29791362 fatcat:m6vssgyihvhn5dolpt543htv7m

Remote Sensing Systems for Ocean: A Review (Part 2: Active Systems)

Meisam Amani, Farzaneh Mohseni, Nasir Farsad Layegh, Mohsen Eslami Nazari, Farzam Fatolazadeh, Abbas Salehitangrizi, Seyed Ali Ahmadi, Hamid Ebrahimy, Arsalan Ghorbanian, Shuanggen Jin, Sahel Mahdavi, Armin Moghimi
2022 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
As discussed in the previous part of this review paper, Remote Sensing (RS) creates unprecedented opportunities by providing a variety of systems with different characteristics to study and monitor oceans  ...  Part 1 of this review paper was dedicated to reviewing passive RS systems and their main applications in the ocean.  ...  In this study, a mean SSH was constructed by employing ten years of altimetry data collected by ERS-1 and -2.  ... 
doi:10.1109/jstars.2022.3141980 fatcat:kc55frb76nbtfkkfabvhbtflem

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

Tim P. Bean, Naomi Greenwood, Rachel Beckett, Lauren Biermann, John P. Bignell, Jan L. Brant, Gordon H. Copp, Michelle J. Devlin, Stephen Dye, Stephen W. Feist, Liam Fernand, Dean Foden (+22 others)
2017 Frontiers in Marine Science  
Side-scan sonar (SSS) typically uses a towed torpedo-shaped device that emits a conical/ fan shaped beam into the water column providing greater detail of objects and formations protruding from the seabed  ...  Biota samples (including fish, shellfish, crustaceans and seaweed) are collected by a variety of methods and the edible fraction is isolated and counted by high resolution gamma-ray spectrometry to determine  ... 
doi:10.3389/fmars.2017.00263 fatcat:mrwub5rtlvhxngses23wkn2ndi

Mapping invasive Phragmites australis in the coastal Great Lakes with ALOS PALSAR satellite imagery for decision support

Laura L. Bourgeau-Chavez, Kurt P. Kowalski, Martha L. Carlson Mazur, Kirk A. Scarbrough, Richard B. Powell, Colin N. Brooks, Brian Huberty, Liza K. Jenkins, Elizabeth C. Banda, David M. Galbraith, Zachary M. Laubach, Kevin Riordan
2013 Journal of Great Lakes research  
The goal of the present study is to focus on the short-term variability in DO depletion and its link to the rate of vertical mixing.  ...  The use of a vertical oxygen budget enabled us to quantify how much of the DO variability is controlled by physical processes, relative to biological processes and the sediment oxygen demand (SOD).  ...  This study is a numerical investigation of an oscillating free-stream flow with a sinusoidal velocity variation by means of Direct Numerical Simulation and Large Eddy Simulation.  ... 
doi:10.1016/j.jglr.2012.11.001 fatcat:nkzrhb6i4fdp7eje2qd5qsahwu

Neural representation of bat predation risk and evasive flight in moths: a modelling approach [article]

Holger R. Goerlitz, Hannah M. ter Hofstede, Marc W. Holderied
2019 bioRxiv   pre-print
This study shows that even a very simple sensory system can adapt to deliver information suitable for triggering appropriate defensive reactions to each predator in a multiple predator community.  ...  Most animals are at risk from multiple predators and can vary anti-predator behaviour based on the level of threat posed by each predator.  ...  Most studies that report 501 flight speeds for moths focus on a few species of economic importance and measure this 502 variable in the context of flight in a pheromone plume.  ... 
doi:10.1101/818609 fatcat:iuihqk2j5vhbnfvomm5aew37cy

SIMWESTMED - Initial Assessment MSP oriented (R1)

P. Campostrini, E. Manea, N. Bassan, F. Fabbri, G. Farella, D. Di Blasi, M. Morelli, O. Montanaro, M. Gomez-Ballesteros, M. Borg, O. Giret, D. Maragno (+19 others)
2019 Zenodo  
The assessment uses existing information by organizing them in a comparable way in order to carry out a previous analysis on the main driver and issues that need to be considered for future MSP processes  ...  of all the Member States involved in the SIMWESTMED project that have been invited to complete the Country Fiche, a document that has led to the development of shared knowledge regarding the marine area  ...  In Spain, there are a total of 21 companies producing salt not counting small ones.  ... 
doi:10.5281/zenodo.2590100 fatcat:6tduphbenbhfzlbmzptjo3ygge
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