New technology reveals the role of giant larvaceans in oceanic carbon cycling

Science Advances
Kakani KatijaBruce H Robison

Abstract

To accurately assess the impacts of climate change on our planet, modeling of oceanic systems and understanding how atmospheric carbon is transported from surface waters to the deep benthos are required. The biological pump drives the transport of carbon through the ocean's depths, and the rates at which carbon is removed and sequestered are often dependent on the grazing abilities of surface and midwater organisms. Some of the most effective and abundant midwater grazers are filter-feeding invertebrates. Although the impact of smaller, near-surface filter feeders is generally known, efforts to quantify the impact of deeper filter feeders, such as giant larvaceans, have been unsuccessful. Giant larvaceans occupy the upper 400 m of the water column, where they build complex mucus filtering structures that reach diameters greater than 1 m. Because of the fragility of these structures, direct measurements of filtration rates require in situ methods. Hence, we developed DeepPIV, an instrument deployed from a remotely operated vehicle that enables the direct measurement of in situ filtration rates. The rates measured for giant larvaceans exceed those of any other zooplankton filter feeder. Given these filtration rates and abundance ...Continue Reading

References

Jun 11, 2005·Science·Bruce H RobisonRob E Sherlock
Aug 11, 2010·Proceedings of the National Academy of Sciences of the United States of America·Kelly R SutherlandRoman Stocker
Nov 9, 2011·Journal of Visualized Experiments : JoVE·Kakani KatijaJohn O Dabiri
May 23, 2015·Science·Jennifer R BrumMatthew B Sullivan

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Citations

Oct 5, 2018·Metallomics : Integrated Biometal Science·Sara CalatayudRicard Albalat
Aug 20, 2019·Proceedings of the National Academy of Sciences of the United States of America·Geerat J Vermeij
Jun 5, 2020·Nature·Kakani KatijaBruce H Robison
May 4, 2018·Proceedings. Biological Sciences·Keats R ConleyKelly R Sutherland
Jun 18, 2021·Science Robotics·Dana R YoergerStephen M Rock
May 7, 2021·Integrative and Comparative Biology·Joost DanielsKaren J Osborn
May 29, 2021·Integrative and Comparative Biology·Margaret L ByronArvind Santhanakrishnan
Nov 5, 2021·Nature·Matthew S SavocaJeremy A Goldbogen

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Software Mentioned

AJA
DeepPIV
MBARI
VARS
Video Annotation and Reference System ( VARS )

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