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>

<< Jul 2015 >>
MTWTFSS
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

SPE Offshore Europe

Offshore Europe 2015 (OE 2015) conference and exhibition from the Society of Petroleum Engineers attracts a global audience of engineers…

read more >

Africa International Petroleum Conference & Exhibition (AIPEC) 2015

The conference will cover areas like While the Window of Opportunities Continues to Widen for the Oil and Gas Industry, Creating Immense…

read more >

Deepwater Intervention Forum

The conference named as Deepwater Intervention Forum will cover areas like designing to reduce training time, developing competency in well…

read more >

Subsea UK’s Challenge Cup

Swing for victory as you compete with teams from around the sector in Subsea UK’s Challenge Cup. An opportunity for networking and fun. Includes 18 holes of golf with a shotgun start, starting with bacon rolls, refreshments at the half-way house and concluding with a late lunch and the prize-giving.

More info 

read more >