Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Improved monitoring of coral reefs with the HyperDiver

24.08.2017

Bremen scientists are founding a new company with the help from the EXIST program

Climate change poses a real threat to coral reefs. How this threat actually affects the reefs can be assessed only with considerable staff and technical effort. A team of marine researchers from the Max Planck Institute for Marine Microbiology in Bremen will found a new company with HyperSurvey going completely new ways. Support comes from the EXIST scholarship, an initiative of the Federal Ministry of Economics and Technology (BMWi).


The hyperdiver

Benjamin Mueller, Carmabi


The HyperDiver was used in the southern Caribbean, the Marianas in the Pacific, and Papua New Guinea. With the HyperDiver system, a diver can capture up to 40 square meters of reef every

Max Planck Institute for Marine Microbiology, Bremen

How does the HyperDiver system work?

Like the well-established satellite systems for environmental monitoring, the new HyperDiver system is based on an optical sensor that monitors a variety of wavelengths simultaneously. The aim is to measure environmental parameters on a large scale. This will be accomplished with the new HyperDiver system. This compact system can be operated by a single diver who maps large areas within a short time.

For several decades it was possible to monitor the state of rainforests with satellite systems. The principle is based on the optical properties of plant dyes, as dead trees show a different light spectrum than living ones. The researchers have applied this principle to the coral reef. Their new approach was based on the assumption that the conditions of the corals are reflected by their color spectra. An additional image recognition software should then also automatically assign and determine the coral species by software using the external form.

Computer programs learn to evaluate coral

The first HyperDiver system was developed by Dr. Arjun Chennu with the help of Paul Färber from the Max Planck Institute in Bremen, and was a complete success. The small platform is balanced with different cameras and buoys so that it floats in the water and is therefore easy to move. In order to map a coral reef, the diver has to meander his way along the area to be investigated.

"You can cover about 40 m2 of reef every minute. Our device is currently optimized for the use of coral reefs, but we are planning further areas of application such as lakes and the shallow coasts of the oceans", says Dr. Arjun Chennu.

But the HyperDiver system initially delivers only raw data. The marine biologist Dr. Joost den Haan from the HyperDiver team explains the analysis procedure:

"The basic principle is a self-learning algorithm that has been taught by us. We as biologists know the different life forms such as hard and soft corals, sponges, algae, starfish, sea cucumbers, anemones etc. We have transferred our knowledge to the computer system. The clear advantage of this automated approach is that you only need one person to dive and use the device for the actual data collection. Anyone who can dive can make monitoring with the device without great effort. And we also want to mount the unit on research vessels and remote-controlled dive robots. Our great advantage is that data input is automatic. The analysis happens later on land and the system automatically generates maps and reports. "

The new company HyperSurvey, which consists of Dr. Joost den Haan (marine biologist and managing director), Raja Kandukuri (hardware specialist), and Guy Rigot (software developer), has a dedicated website www.hypersurvey.com, which provides the essential information for future business partners.

"The new HyperDiver system is considerably more cost-effective and faster than conventional monitoring methods, where individual marine biologists assess the reefs along a tape measure. We offer universities, research institutes and authorities as well as the private sector and environmental organizations an effective tool for their work, "says Dr. Joost den Haan.

Support and initial funding

The mentors are Dr. Dirk de Beer and Dr. Arjun Chennu of the Max Planck Institute for Marine Microbiology (MPIMM). The HyperDiver concept was also immediately approved by the the EXIST program, an initiative of the Federal Ministry of Economics and Technology (BMWi), which now provides a scholarship. The MPIMM will provide further active and organizational support.

The Max Planck Institute for Marine Microbiology, for which Dr. Arjun Chennu and the electrical engineer Paul Färber developed the first HyperDiver, offers the researchers labs and office space for the next 10 months. Further help comes from the Bremen University Initiative for the Promotion of Entrepreneurship, Entrepreneurship and Entrepreneurship BRIDGE.

More information

Dr. Joost den Haan
Phone: +49 (0)421 2028 – 832, jhaan(at)mpi-bremen.de
or
j.denhaan(at)hypersurvey.com
Max-Planck-Institut für Marine Mikrobiologie

www.mpi-bremen.de

Dr. Arjun Chennu
Phone: +49 (0)421 2028 – 832, achennu(at)mpi-bremen.de

Or contact the press team
Dr. Manfred Schlösser
Phone: +49 (0)421 2028 – 704, mschloes(at)mpi-bremen.de

Dr. Fanni Aspetsberger
Phone: +49 (0)421 2028 – 947, faspetsb(at)mpi-bremen.

Dr. Manfred Schloesser | Max-Planck-Institut für marine Mikrobiologie

More articles from Earth Sciences:

nachricht Atmospheric scientists reveal the effect of sea-ice loss on Arctic warming
11.03.2019 | Institute of Atmospheric Physics, Chinese Academy of Sciences

nachricht Sensing shakes
11.03.2019 | University of Tokyo

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Self-healing coating made of corn starch makes small scratches disappear through heat

Due to the special arrangement of its molecules, a new coating made of corn starch is able to repair small scratches by itself through heat: The cross-linking via ring-shaped molecules makes the material mobile, so that it compensates for the scratches and these disappear again.

Superficial micro-scratches on the car body or on other high-gloss surfaces are harmless, but annoying. Especially in the luxury segment such surfaces are...

Im Focus: Stellar cartography

The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.

A special technique allows astronomers to resolve the surfaces of faraway stars. Those are otherwise only seen as point sources, even in the largest telescopes...

Im Focus: Heading towards a tsunami of light

Researchers at Chalmers University of Technology and the University of Gothenburg, Sweden, have proposed a way to create a completely new source of radiation. Ultra-intense light pulses consist of the motion of a single wave and can be described as a tsunami of light. The strong wave can be used to study interactions between matter and light in a unique way. Their research is now published in the scientific journal Physical Review Letters.

"This source of radiation lets us look at reality through a new angle - it is like twisting a mirror and discovering something completely different," says...

Im Focus: Revealing the secret of the vacuum for the first time

New research group at the University of Jena combines theory and experiment to demonstrate for the first time certain physical processes in a quantum vacuum

For most people, a vacuum is an empty space. Quantum physics, on the other hand, assumes that even in this lowest-energy state, particles and antiparticles...

Im Focus: Sussex scientists one step closer to a clock that could replace GPS and Galileo

Physicists in the EPic Lab at University of Sussex make crucial development in global race to develop a portable atomic clock

Scientists in the Emergent Photonics Lab (EPic Lab) at the University of Sussex have made a breakthrough to a crucial element of an atomic clock - devices...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

International Modelica Conference with 330 visitors from 21 countries at OTH Regensburg

11.03.2019 | Event News

Selection Completed: 580 Young Scientists from 88 Countries at the Lindau Nobel Laureate Meeting

01.03.2019 | Event News

LightMAT 2019 – 3rd International Conference on Light Materials – Science and Technology

28.02.2019 | Event News

 
Latest News

Molecular motors run in unison in a metal-organic framework

20.03.2019 | Life Sciences

Active substance from plant slows down aggressive eye cancer

20.03.2019 | Life Sciences

Novel sensor system improves reliability of high-temperature humidity measurements

20.03.2019 | Trade Fair News

VideoLinks
Science & Research
Overview of more VideoLinks >>>