#Echosounders
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ordofibonacci.bsky.social
Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders
Frontiers
www.frontiersin.org/journals/rem...
Frontiers | Multispectral backscatter-based characterization of seafloor sediments using calibrated multibeam and tilted single-beam echosounders
This study presents a detailed analysis of Angular Response Curves (ARC) extracted from a multi-spectral seabed backscatter dataset utilizing both calibrated...
www.frontiersin.org
July 9, 2025 at 3:45 AM
lilianlieber.bsky.social
Interested in combining any of the following?
👉 Remote sensing, autonomous underwater vehicles, plankton imaging, echosounders, ADCPs, physical #oceanography... to investigate tidal mixing fronts, biophysical processes, and lower trophic dynamics? Tailor to your interests!
November 18, 2024 at 9:14 AM
sedialex.bsky.social
How is marine geoscience conducted at the Geological Survey of Canada? Here are some of the tools we use to characterize the seafloor and monitor seabed processes, in collaboration with our partners from academia and other government departments.
Illustration showcasing the various tools deployed from a scientific vessel, including multibeam echosounders, piston coring, autonomous underwater vehicles, remotely operated vehicles and moorings.
October 2, 2024 at 4:29 PM
biorxiv-ecology.bsky.social
Echosounders for fish detection disturb harbour porpoises https://www.biorxiv.org/content/10.1101/2025.11.03.686290v1
November 4, 2025 at 9:31 PM
erikolsen.bsky.social
The trawl we use has a 20m vertical opening and is equipped with depth sensors and echosounders that lets us know how deep it is and what it catches

🧵4/n
October 31, 2023 at 3:49 PM
pizzapatch.bsky.social
This limited time offer has ended.
#collage
Collage set on an image of sunset on a misty waterway. Pasted text reads: "HOT AUGUST SPECIALS! For a limited time, you can get convenient access to medication, Crunchy Clusters, tangy grapefruit, ultra-compact dual frequency echosounders, Coleman Dog Flotation Vest (Assorted sizes & colors). $5 off justice for asbestos victims, modeling, volumetrics, graphics, and videos of virtually any type of subsurface data, adult beverages. Get up, bring a friend, Go Wild!" Image of dog in flotation vest (orange and black) included.
September 2, 2024 at 10:45 PM
echoview.com
𝗦𝗲𝗲 𝘁𝗵𝗲 𝗹𝗮𝘁𝗲𝘀𝘁 𝗽𝘂𝗯𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗳𝗿𝗼𝗺 𝗘𝗰𝗵𝗼𝘃𝗶𝗲𝘄 𝘂𝘀𝗲𝗿𝘀 𝗴𝗹𝗼𝗯𝗮𝗹𝗹𝘆 including:
• Demersal spawning of capelin (Mallotus villosus) in northern Labrador, Canada
And much more!🔗

Check out: echoview.com/news-and-eve...

#Hydroacoustics #Echosounders #Echoview
October 6, 2025 at 3:30 AM
javierolivares.bsky.social
Student training on Polarstern’s transit to the Antarctic.
This weekend, the research vessel #Polarstern is scheduled to depart from her homeport in Bremerhaven. @www.helmholtz.de blogs.helmholtz.de/en/
Polarstern leaves Bremerhaven (Photo: Folke Mehrtens) In addition to the crew, 33 scientific expedition participants will be on board – primarily young researchers whose job it will be to familiarise themselves with using echosounders to survey the ocean floor. When the Polarstern casts off this Sunday evening, there will be plenty of first-time expedition participants on board: the transit route to the Antarctic is frequently used for student training. At sea, the students and doctoral candidates will learn how to use echosounders, which are part of the research icebreaker’s standard equipment. Polarstern leaves Bremerhaven (Photo: Folke Mehrtens) The devices survey the ocean floor, providing an important basis for selecting sample-gathering sites and helping those at the helm navigate in unfamiliar waters. But during the transit, the focus will be on another aspect: the route is a familiar one, which means the students can compare their own datasets with those from past years. Departing from Bremerhaven at roughly 8 pm, the journey will take them past Rotterdam, through the English Channel and the Bay of Biscay to Las Palmas. Though the trainees’ journey will end in the Canary Islands, the Polarstern will continue on toward Walvis Bay (Namibia), where she is expected to arrive shortly before Christmas. After a crew transfer and bunkering fuel and provisions, the ship is scheduled to depart on a two-and-a-half-month expedition to the Antarctic Weddell Sea, starting on Christmas Eve. In mid-January, the Polarstern will travel to Atka Bay to resupply the German Antarctic research basis Neumayer Station III. The scientific focus of the expedition is on continuing the long-term time series of the Hybrid Antarctic Float Observation System (HAFOS). In this regard, the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research has been gathering data on the hydrography, nutrients, oxygen and carbon system in the Weddell Sea region since the 1980s to analyse developments in connection with climate change. In mid-March 2025, the Antarctic expedition will draw to a close in Port Stanley, where, after another crew transfer, the Polarstern will begin her return voyage to Bremerhaven. Polarstern leaves Bremerhaven (Photo: Folke Mehrtens) The Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) conducts research in the Arctic, Antarctic and oceans of the high and mid-latitudes. It coordinates polar research in Germany and provides major infrastructure to the international scientific community, such as the research icebreaker Polarstern and stations in the Arctic and Antarctica. The Alfred Wegener Institute is one of the 18 research centres of the Helmholtz Association, the largest scientific organisation in Germany.
November 22, 2024 at 11:23 AM
echoview.com
We participated in a hydroacoustic training seminar in Suzhou, China, hosted by Suzhou Neptune Sense Technology Co Ltd and TIGRO (Dalian) Technology, focused on Kongsberg EK80 echosounders and processing active acoustic data in #Echoview.
🔗https://echoview.com/news-and-events/seminar-china/
December 18, 2025 at 12:18 AM
harivn.bsky.social
This computer‑vision approach complements our broader polar sensing:active echosounders to map terminus morphology+mixing;passive #acoustics to monitor melt noise & calving; & #robotics. Together, these advance climate‑change research while keeping fieldwork practical in polar environments.
(3/3)
November 24, 2025 at 4:16 PM
javierolivares.bsky.social
The new ship
Frigid temperatures, dense sea ice and beneath you, oceans thousands of metres deep and teeming with life and lower still, a seafloor that holds information on the geological history of our planet: that’s where the new icebreaker will be underway
@www.helmholtz.de
polarstern.awi.de/en/
Flexible research platform The ship is home to all marine sciences: from geology and geophysics to biology, oceanography, sea-ice and atmospheric research. Here, up to 90 scientific expedition participants and 50 crewmembers can find accommodation. The new Polarstern will offer them a safe haven for investigating Earth’s fascinating polar regions and will be equipped with a range of laboratories and fixed systems, from multibeam echosounders to sensors for meteorological observations, to digital infrastructure. Armed with this equipment and resources, the new Polarstern, just as her predecessor, will be able to operate year-round in the Arctic and Antarctic and gather data on those regions of our planet hardest-hit by climate change. After all, what happens in the polar regions affects us all: global ocean currents are changing,along with atmospheric circulation patterns, which affect the weather around the globe. The oceans offer a vital food source and carbon dioxide sink, room for rest and recreation, valuable minerals and natural resources, and open global transport routes. These services are now in jeopardy. The new Polarstern will give researchers from around the world the opportunity to gain critical insights into the progressing climate change our planet is experiencing, especially in the polar regions. Society urgently needs this type of knowledge so as to make the right choices regarding climate protection, environmental protection and nature conservation – for the future of the polar regions, for biodiversity on land and at sea, and for the generations to follow. As one of the world’s foremost research platforms and the flagship of German climate research, the Polarstern is the gateway to the Arctic and Antarctic. Polarstern will give researchers the opportunity to gain insights into the research on biodiversity and the progressing climate change.Polarstern will give researchers the opportunity to gain insights into the research on biodiversity and the progressing climate change. About thyssenkrupp Marine Systems thyssenkrupp Marine Systems is one of the world’s leading companies in the marine industry with around 8,000 employees at three shipyards in Kiel, Wismar and Itajaí (Brazil) as well as at locations worldwide. The company is a system supplier for submarines and naval surface vessels as well as for maritime electronics and safety technology. Around 3,300 employees work in Kiel, the largest shipyard location in Germany. 185 years of history and constant striving for improvement mean that the company is constantly setting new standards. thyssenkrupp Marine Systems offers its customers worldwide customised solutions for highly complex challenges in a changing world. The driving forces behind this are the company’s employees, who shape the future of thyssenkrupp Marine Systems with passion and commitment every day. The decision to build the new Polarstern will help to further strengthen Germany as a shipyard location in the civil sector. For the shipyard in Wismar, the decision is an important signal for the future: Around 1,500 jobs could be created in the underwater and surface areas if the shipyard is fully utilised. Designed for use in heavy ice The new research icebreaker holds a “polar class 2” rating, making her suitable for year-round operations in the multiyear ice of the Arctic and Antarctic. This level of icebreaking performance (also by international standards) is needed in order to penetrate the “Last Ice Areas” like the southern Weddell Sea in the Antarctic and the region north of Greenland and the Canadian islands – areas for which observational data is urgently needed in order to gauge the impacts of climate change and detect critical changes early on. Today, climate change is already affecting ice and meteorological conditions, producing larger pressure ridges and heavier snow cover on the ice floes. Given these changes, the new ship has to be able to break through 1.8-metre-thick ice with 20 percent snow cover at a consistent speed of three knots. Moreover, the new ship’s dynamic positioning system makes her highly manoeuvrable, so that scientific fieldwork like collecting samples can be done at precisely the right site.
February 24, 2025 at 8:10 AM
jeromeollier.bsky.social
Actus Mer/Sea News: Antarctic Krill Biomass and Flux Measured Using Wideband Echosounders and Acoustic Doppler Current Profilers on Submerged Moorings - @FrontMarineSci http://dlvr.it/SMmYhN
January 25, 2025 at 1:58 PM
harivn.bsky.social
Active acoustics for #polar #glacier science — now in print! ❄️🔊
A new open‑access paper I collaborated on, shows how high‑frequency broadband echosounders illuminate key #climatechange processes at #tidewater #glaciers.
Read: doi.org/10.5194/tc-1...
(1/3)
High-frequency broadband active acoustic systems as a tool for high-latitude glacial fjord research
Abstract. High-frequency broadband scientific echosounders enable the monitoring of complex dynamics, via the rapid collection of high-resolution, near-synoptic observations of the water column and qu...
doi.org
October 24, 2025 at 2:31 PM
erikolsen.bsky.social
So what is a 'pelagic survey'?

Essentially we're going back and forth with our vessel over an ocean area using echosounders to 'see' what's below the vessel, interpreting the data and converting it to numbers and tons of fish.

🧵 1/n
October 31, 2023 at 3:39 PM
bluesky.awakari.com
eess updates on the arXiv.org e-print archive. eess.SP oai:arXiv.org:2111.00187v4 arXiv:2111.00187v4 Announce Type: replace Abstract: Echosounders are high-frequency sonar systems used to sense fish and zooplankton underwater. Their deployment on a vari...

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Origin
arxiv.org
May 12, 2025 at 9:02 AM
echoview.com
𝗦𝗶𝗴𝗻 𝘂𝗽 𝗳𝗼𝗿 𝗼𝘂𝗿 𝗼𝗻𝗹𝗶𝗻𝗲 𝟱-𝗱𝗮𝘆 𝗙𝘂𝗻𝗱𝗮𝗺𝗲𝗻𝘁𝗮𝗹𝘀 𝗖𝗼𝘂𝗿𝘀𝗲 𝗶𝗻 𝗲𝗮𝗿𝗹𝘆 𝟮𝟬𝟮𝟲!
Learn practical skills for processing & interpreting active acoustic data with Echoview.

📅 16–20 Feb (EU/AF/ASIA)
📅 2–6 Mar (Americas)

Details & registration: echoview.com/products-and...

#Echoview #Hydroacoustics #Echosounders
November 26, 2025 at 1:35 AM
jethroreading32.bsky.social
Boarfish are also a target for human fisheries as they form dense, acoustically-reflective schools that are easily spotted with echosounders. Tens of thousands of tonnes are caught and processed into fishmeal each year, in turn used to feed farmed livestock and fishes in aquaculture.
A ball of small red boarfish swim about in the open ocean. Credit: Luis Quinta
December 23, 2025 at 10:58 AM
antarctic.bsky.social
1️⃣ Within minutes, Antarctic krill swarm a light, on a seafloor lander at a depth of 387m in Prydz Bay, East #Antarctica.

🔃 The daily vertical migration of krill was monitored with a camera and an upward-looking echosounder. Krill data mostly come from ship echosounders that look down to about 250m.
January 24, 2025 at 1:52 AM
profchrisharrod.bsky.social
The folks at biobase (not on here yet) have developed a programme to estimate macroalgae/macrophyte cover from these echosounders. They are working on a fish counting algorithm...

If it works, it's going to completely change fish science!

The figure is from a small lake so I'm kind of cheating 😁
November 29, 2024 at 8:05 AM
dtobioflow.bsky.social
🪸 Did you know Calanus spp. are key players in #marine food webs❓ Real-time data guides fisheries, traffic & environmental monitoring.

#DTOBioFlow #DUC6 uses 🔊 echosounders, 🎦 #SilCam & 🤖 robots to feed the #DigitalTwinOcean for smarter #OceanGovernance.

👉 Learn more: tinyurl.com/DTO-BioFlow-...
December 23, 2025 at 10:04 AM
warren-lab.bsky.social
Come join ALES ! We are hiring a post-doc to work on projects involving long term monitoring w upward looking echosounders and ship-based net and acoustic sampling. Applications due Jan 18. stonybrooku.taleo.net/careersectio...
December 19, 2025 at 4:51 PM
kiwiincolorado.bsky.social
Towards Simpler #Assessment Of The #Environmental Impact - #Hydrographic #Echosounders
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tinyurl.com/4djscyeh
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#GIS #spatial #mapping #marinemammals #whales #cetaceans #survey #impacts #humanimpacts #sonar #remotesensing #marine #animals #risk #hazard #model #impactassessment #auditory#strandings
June 19, 2025 at 9:03 PM
biorxivpreprint.bsky.social
Echosounders for fish detection disturb harbour porpoises https://www.biorxiv.org/content/10.1101/2025.11.03.686290v1
November 4, 2025 at 9:31 PM
jimmywim.bsky.social
"Tankers" or "Tanker-like ships loaded with sensors, echosounders and whatnot".

"La-da-da, I'm just looking for your undersea cables and... oh shit. Oh shit shit shit shit. I'm off"
January 11, 2026 at 9:34 PM