MBARI Conducts Midwater Ecology Fall 2013

MBARI Conducts Midwater Ecology Fall 2013

In order to document the effects of declining oxygen concentrations on midwater communities, the midwater ecology research group has conducted approximately one remotely operated vehicle (ROV) dive per month, compiling a time series which measures the identity, abundance, and vertical distribution of the constituents of the midwater fauna at specific sites.

The results of the time series demonstrate that several species have already been displaced by the expanding oxygen minimum zone (OMZ). OMZs are depths, typically 300 to 1,000 meters below the surface, where oxygen concentrations are already quite low in many parts of the world’s oceans.

The midwater team will be examining the physiological characteristics of midwater animals relative to the expanding OMZ. This research utilizes the midwater respirometry system (MRS), an instrument which gathers oxygen consumption measurements in situ, to gauge the metabolism of animals without subjecting them to the stresses of decompression during transport to the surface. Data provided by the MRS helps to determine the oxygen level at which each species switches from “regulation” to “compensation.” Once these oxygen levels are known for a number of species, the future of how expansion of the OMZ will change the spatial composition of the midwater community can be predicted, as well as the ecological implications of such changes.

In addition, the MBARI research team will be joined by a group of husbandry staff from the Monterey Bay Aquarium. The Monterey Bay Aquarium is interested in the potential for creating an exhibit of deepwater organisms and will be working closely with MBARI on organisms such as jellies and cephalopods.

Source: MBARI, November 11, 2013

 

 

Share this article

Follow Subsea World News

Events>

<< May 2016 >>
MTWTFSS
25 26 27 28 29 30 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31 1 2 3 4 5

Seawork International 2016

This event showcases product from Railway, Shipping & Aviation industry.Seawork International is the largest and fastest growing international…

read more >

EEMUA subsea engineering course: materials selection and corrosion control

This two and a half day training course is recommended for both discipline and project focused engineers from a variety of backgrounds who want to gain an understanding of the fundamental principles for selecting and specifying materials of construction for subsea equipment, and for corrosion control during deployment, commission and operation. The course is based on the EEMUA User Guide to subsea materials selection and corrosion control, EEMUA Publication 194.

It is operated in association with the Society for Underwater Technology (SUT). Permanent employees of EEMUA and SUT member companies are entitled to a 20% discount off the standard course fee.

More info

read more >

5th International Conference Offshore Cabling 2016

At the upcoming event you will get the opportunity to learn from offshore cable installation case studies and gain insights into latest…

read more >

OPEX Global Subsea Power Cables Forum for the O&G and Energy Industry 2016

This year subsea power cable forum will bring together key experts from Oil and Gas and Energy Industry globally to discuss the current…

read more >