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Aquaculture, with the water measured at every pen.

Fish and shellfish live in the water a farm cannot control. Sondes at the pens and lines, a buoy for wind and waves, cameras at feeding and samples for algae report to one record, so farm managers act before oxygen falls and buyers and authorities see how the stock was kept.

Industry

Agriculture

Measurements

5

Sources cited

3

1. Agriculture · Aquaculture

   The water decides

   A fish or shellfish farm can feed, treat and harvest, but it cannot choose its water. On a warm, still night oxygen falls; a bloom drifts in; a storm tests the moorings. Farms that measure the water at every pen act before the stock suffers, and can show buyers and authorities how it was kept.

2. What is measured

   Oxygen, temperature, algae and weather

   Sondes at several depths in each pen read dissolved oxygen, temperature, salinity and chlorophyll; water samples confirm harmful algae for the authority. A buoy measures wind, waves and currents at the farm, and cameras in the pens watch feeding and fish behaviour.

   Instruments

   Water-quality sondes · Met-ocean buoy · Pen cameras · Water samples

3. The base node

   A node on the pen ring

   A small node on each pen ring reads its sondes, signs every value and buffers it through any gap in the link. The farm node on the barge watches oxygen in every pen through the night and raises the alarm, and starts aeration, without waiting for the shore.

4. Radio and links

   Cellular from the barge, satellite in the storm

   Pens reach the feed barge over a local wireless link. The barge carries the farm’s traffic over cellular where the coast has coverage, and keeps a satellite terminal as the second path for remote farms and for storms that take the shore network down.

   Links

   Public cellular · Satellite · Wi-Fi

5. How it works

   From a falling oxygen reading to aeration

   A sonde in a pen reads oxygen falling at night. The pen node signs it and passes it to the barge node, which sees it approach the farm’s limit, starts aeration and calls the crew over cellular. The record keeps the readings, the alarm and the response.

6. From order to operation · Order

   Scope the farm and the water

   The scope reads the farm layout, species, licences, shellfish area classification and the risks seen in past seasons. Nexus Observatory Inc. returns the point plan by pen and depth, the buoy, the radio design, the integration with farm software and a price per pen and per service.

   Plan a deployment

7. From order to operation · Survey

   Survey from the water

   Crews survey from the farm’s boats with the site manager: pen positions, depths, currents and where the farm edge sits. They check cellular coverage from the barge, sky view for satellite, and find mounting points on pen rings and lines that divers and nets will not foul.

8. From order to operation · Permits

   Licences and the authority

   Moorings and buoys stay within the farm’s licence, and anything new on the water is marked as navigation rules require. Shellfish sampling follows the authority’s programme, and data sharing with the authority and researchers is agreed in writing. Every consent and agreement is kept with the farm’s record.

9. From order to operation · Build

   Build for salt water

   Sondes, cameras, nodes, the buoy and radios are built for salt water, tested together and enrolled with their identities. Antifouling is fitted, oxygen limits and alarm contacts come from the farm’s plan, and every part is labelled with its pen and depth.

   Open the Station Builder

10. From order to operation · Install

    Install from the boat

    Crews mount sondes at their depths, cameras inside pens and nodes on pen rings, and moor the met-ocean buoy at the farm. The barge node and links are installed and tested, and every point is located and photographed. Divers check underwater mounts.

11. From order to operation · Commission

    Test the oxygen alarm

    Each device proves its identity. Sondes are checked against reference solutions and a hand meter in the pen, the buoy against a shore reference. The oxygen alarm is triggered on purpose so the farm manager’s phone rings, and aeration starts where it is controlled.

12. From order to operation · Operate

    Act before oxygen falls

    Managers see oxygen, temperature and salinity at every pen and depth, with wind and waves from the buoy. Night alarms start aeration and call the crew, feeding follows the camera and the water, and bloom warnings move stock or stop harvest, all on one record.

13. From order to operation · Maintain

    Clean, calibrate, swap

    Sondes foul quickly in salt water, so they are cleaned and calibrated on a short schedule and swapped with spares from the bench. Moorings and the buoy are inspected after storms, and every change is recorded, so oxygen series stay comparable across seasons.

    Book field services

14. Data products

    For managers, crews and authorities

    Farm managers and crews receive oxygen and temperature by pen and depth with alarms; boat crews receive met-ocean conditions; feed managers receive feeding records; authorities and buyers receive water records that show how the stock was kept. Each product carries the calibration behind it.

    See the data products

15. Evidence

    Responsible practice on the record

    Every reading, calibration, alarm and response is signed and kept with its time and place. Practice follows the FAO code for responsible fisheries and aquaculture, shellfish areas follow the food hygiene rules for live bivalves, and records are exchanged through open standards that authorities can read.

    Drawn against

    FAO Code of Conduct for Responsible Fisheries · Regulation (EC) No 853/2004 · OGC SensorThings

16. What you get

    Ocean and coastal observing

    Moored buoys, profiling floats, tide and wave gauges, coastal radar and AIS reception with quality-controlled feeds. Delivered as managed service and data licence, for ports, coastal agencies, offshore energy, fisheries. Scale: Coastline to basin. Service levels are written as numbers you can measure on your own dashboard.

    Talk to sales

17. Next step

    Plan aquaculture with us

    Tell us the site, the measurements and the rules it answers to. We reply with a survey proposal, a design and a scope for aquaculture. An engineer replies with a survey proposal and a scope, and the plan grows from one site to the network you need, at your pace.

    Plan a deploymentOpen the Station BuilderOpen the Studio

01The place and its hazards

Where it runs, and what can go wrong.

Operating contextFish farms in pens and ponds and shellfish farms on lines and trestles depend on oxygen, temperature, salinity and food in the water. Low oxygen, harmful algal blooms and storms can kill stock in hours. Shellfish areas are classified by authorities for food safety, and responsible aquaculture practice expects farms to watch their effect on the water around them.

Hazards

• Low dissolved oxygen at night and in warm water
• Harmful algal blooms and jellyfish
• Storms damaging pens and moorings
• Disease spreading between pens
• Feed waste affecting the seabed and water

02What must be measured

What, where, how often, and under which rules.

Each measurement names where it is taken, how often, and the public standard or regulation behind it. Numbers in the sources column open the cited source below.

03The observation stack

From one base unit to a network.

The same blocks at every scale: instruments and a base node, a site with its radio, a fleet run as one, and a network federated on the open protocol.

1. 01

   Base unit

   A pen point: a water-quality sonde and a camera read by a small node on the pen ring that signs every value.

   Build a station →
2. 02

   Site

   A farm: every pen or line, a met-ocean buoy and a cellular link from the feed barge or shore, with satellite as the second path.

   Plan a site →
3. 03

   Fleet

   Every farm of a producer run as one fleet, with one oxygen alarm process and one record.

   Managed offers →
4. 04

   Network

   Producers, authorities and researchers exchange water records and bloom warnings through open standards.

   The open protocol →

• 01Water quality sonde
• 02Moored buoy
• 03Compact weather station
• 04Fixed camera
• 05Micro node (Nano)
• 06Cellular modem/router
• 073GPP NTN terminal
• 08Solar array

Radio and links

Public cellular

Most farms near the coast are in coverage; the feed barge or shore base carries the farm’s traffic.

Radio and links

Satellite

Offshore and remote farms, and every farm in a storm, keep a second path through a satellite terminal.

Radio and links

Wi-Fi

Between the pens and the feed barge, a local wireless link carries cameras and sondes.

Edge computeThe farm node watches oxygen in every pen through the night and raises the alarm at once when it falls toward the limit the farm set, starting aeration where it is installed; feeding cameras are analysed on the barge.

PowerPen points run on solar and batteries on the pen ring or buoy; the barge node runs on the barge’s own power with a battery for outages.

04How it works

From the instrument to the product.

One observation’s path, tier by tier, with the interface on every link and a bill of materials below; then how the one node grows to a site, a fleet and federated networks.

05From order to operation

Every step, from the first call to a running site.

The same crew and the same record carry the work from scope to maintenance.

1. 01 Order

   Scope the farm and the water

   The scope reads the farm layout, species, licences, shellfish area classification and the risks seen in past seasons. Nexus Observatory Inc. returns the point plan by pen and depth, the buoy, the radio design, the integration with farm software and a price per pen and per service. 13

2. 02 Survey

   Survey from the water

   Crews survey from the farm’s boats with the site manager: pen positions, depths, currents and where the farm edge sits. They check cellular coverage from the barge, sky view for satellite, and find mounting points on pen rings and lines that divers and nets will not foul.

3. 03 Permits

   Licences and the authority

   Moorings and buoys stay within the farm’s licence, and anything new on the water is marked as navigation rules require. Shellfish sampling follows the authority’s programme, and data sharing with the authority and researchers is agreed in writing. Every consent and agreement is kept with the farm’s record.

4. 04 Build

   Build for salt water

   Sondes, cameras, nodes, the buoy and radios are built for salt water, tested together and enrolled with their identities. Antifouling is fitted, oxygen limits and alarm contacts come from the farm’s plan, and every part is labelled with its pen and depth.

5. 05 Install

   Install from the boat

   Crews mount sondes at their depths, cameras inside pens and nodes on pen rings, and moor the met-ocean buoy at the farm. The barge node and links are installed and tested, and every point is located and photographed. Divers check underwater mounts.

6. 06 Commission

   Test the oxygen alarm

   Each device proves its identity. Sondes are checked against reference solutions and a hand meter in the pen, the buoy against a shore reference. The oxygen alarm is triggered on purpose so the farm manager’s phone rings, and aeration starts where it is controlled.

7. 07 Operate

   Act before oxygen falls

   Managers see oxygen, temperature and salinity at every pen and depth, with wind and waves from the buoy. Night alarms start aeration and call the crew, feeding follows the camera and the water, and bloom warnings move stock or stop harvest, all on one record. 13

8. 08 Maintain

   Clean, calibrate, swap

   Sondes foul quickly in salt water, so they are cleaned and calibrated on a short schedule and swapped with spares from the bench. Moorings and the buoy are inspected after storms, and every change is recorded, so oxygen series stay comparable across seasons.

06Data products and integration

What it delivers, to whom, and into which systems.

Data products

• Oxygen and temperature by pen and depthFarm managers and crews
• Low-oxygen and bloom alarmsFarm managers and aeration systems
• Met-ocean conditions at the farmBoat crews and managers
• Feeding recordsFeed managers
• Water records for the authorityAuthorities and buyers

Integration

• Farm management softwareWater and feeding data join the stock record through its own interfaces.
• Aeration and feeding systemsAlarms can start aeration and pause feeding through the controllers’ own interfaces.
• Authorities and researchersWater records are shared through OGC SensorThings where the farm agrees.

Exchanged through OGC SensorThings API, Common Alerting Protocol, ISO 19156.

07Questions buyers ask

Before you scope it.

Will the alarm reach us at night?

It is raised by the farm node and sent to the crew’s phones over cellular, or satellite if cellular fails.

How often must sondes be cleaned?

Often in warm, productive water; the schedule follows the fouling seen at the farm.

Can the system start our aerators?

Yes, where they accept a remote start; the rules are the farm’s.

Does it replace official shellfish sampling?

No. It warns early; the authority’s sampling decides classification and closures.

08Resources

The sources behind this page.

Public standards, regulations and guidance, cited where they apply. Each applies only where its jurisdiction or scope does.

1. 1Code of Conduct for Responsible FisheriesFood and Agriculture Organization of the United Nations · 1995
2. 2Guide to Instruments and Methods of Observation (WMO-No. 8)World Meteorological Organization
3. 3Regulation (EC) No 853/2004 laying down specific hygiene rules for food of animal origin (live bivalve molluscs)European Union · 2004

09Related

Use cases and solutions.

10Agriculture: specialized fields

Other fields of this industry.

Bring us the site.

Plan a deployment, configure a station, model it in the Studio or talk to sales. The form names who receives your details.