Midwater Respirometer System

Midwater Respirometer

The midwater respirometer suspended on its mooring 440 meters (1,440 feet) below the surface of Monterey Bay. Image: © 2011 MBARI[/caption]

Mountain climbers know that changes in temperature and pressure can affect their energy level and their ability to breathe. Animals that live in the deep sea face similar challenges when scientists bring them to the surface for study. To address this problem, MBARI researchers have developed a new instrument that allows them to study the breathing of deep-sea animals without removing the animals from their environment.

By studying an animal’s respiration (how much oxygen it consumes), scientists can better understand how much energy (food) it needs to live. The rate at which an animal expends energy is called its “metabolic rate.” “If you want to understand how an organism is consuming and utilizing energy to live its life, its metabolic rate is a vital measurement to have,” said Bruce Robison, an MBARI marine biologist.

Robison studies animals like jellies, shrimp, and squid that live in the midwater—the vast watery space between the ocean surface and the seafloor. Learning about the respiration and metabolism of these animals will help Robison and other researchers expand their meager knowledge of midwater food webs.

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Midwater Ecology 2015 Expedition

August 7-14, 2015
On August 7, the R/V Western Flyer headed to sea for a seven-day expedition with the Midwater Ecology research group, led by Bruce Robison. During this expedition, they plan to deploy the Midwater Respirometry System, conduct midwater transects, collect specimens for lab studies and for exhibit at Monterey Bay Aquarium, make in situ observations, and jig or trawl for squid at night. They also plan to deploy a small remotely operated vehicle (MiniROV) for shallow transecting and in situ observations.

Team

Technology

Solving challenges
Taking the laboratory into the ocean
In Situ Ultraviolet Spectrophotometer
Midwater Respirometer System
Mobile flow cytometer
Enabling targeted sampling
Automated Video Event Detection
Gulper autonomous underwater vehicle
Advancing a persistent presence
Aerostat hotspot
Benthic event detectors
Benthic rover
Fault Prognostication
Long-range autonomous underwater vehicle Tethys
Marine “soundscape” for passive acoustic monitoring
Monterey Ocean-Bottom Broadband Seismometer
Shark Café camera
Vehicle Persistence
Wave Glider-based communications hotspot
Emerging and current tools
Communications
Aerostat hotspot
Wave Glider-based communications hotspot
Data management
Oceanographic Decision Support System
Spatial Temporal Oceanographic Query System (STOQS) Data
Video Annotation and Reference System
Instruments
Apex profiling floats
Benthic event detectors
Deep particle image velocimetry
Environmental Sample Processor
How the ESP Works
Genomic sensors
ESP Web Portal
The ESP in the news
Investigations of imaging for midwater autonomous platforms
Lagrangian sediment traps
Laser Raman Spectroscopy
Midwater Respirometer System
Mobile flow cytometer
Smart underwater connector
Power
Wave-Power Buoy
Vehicle technology
Benthic Rover
Gulper autonomous underwater vehicle
Imaging autonomous underwater vehicle
In Situ Ultraviolet Spectrophotometer
Seafloor mapping AUV
Long-range autonomous underwater vehicle Tethys
Mini remotely operated vehicle
ROV Doc Ricketts
ROV Ventana
Video
Automated Video Event Detection
Deep learning
SeeStar Imaging System
Shark Café camera
Video Annotation and Reference System
Technology publications
Technology transfer