Inter-Calibration Cruise With ZOOPS

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Last month we had a successful inter-calibration cruise with our zooplankton imaging system ZOOPS. We configured the system to record simultaneous stereo images and broadband acoustic reflections from individual zooplankton. After two days of hard work we had over 40,000 image pairs and acoustic reflections. We are now sifting through the data to find records where the animal was in both camera images and the acoustic beam at the same time. We plan to use these to better understand the relationship between taxa, size, shape, and orientation of the animals and their acoustic scattering signatures.

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Tara Knight documented the entire cruise with video and still images including the image shown above.

Some examples of the of data we were looking for are shown below. Each image gives a roughly orthogonal view of the animal being insonified while the matched filtered acoustic envelope (the red curve below the left image) shows the scattering strength and range of the animal. We hope to estimate the size and orientation of the animals from the image data and then compare the measured acoustic data to well-established scattering models.

 

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Jaffe Lab Funded to Build 3D Underwater Video Microscope

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Dr. Jaffe along with Scripps professor of biological oceanography Peter Franks, and UC San Diego professor of computer science and engineering David Kriegman have recently been awarded a $1 Million grant from the W.M. Keck Foundation to build the first ever 3D, multi-resolution, video, underwater microscope.

Scripps Oceanography Article

Union Tribune Article

 

Market squid runs off La Jolla Shores beach

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Lately the market squid (Loligo opalescens) have been causing quite the stir in the local dive community here in San Diego. They can be found in large numbers all along La Jolla Canyon off of La Jolla Shores beach. The videos below were taken by a member of Dr. Jaffe’s lab, Justin Haag, using a GoPro camera.

Not only are they interesting to observe, but other animals have also taken an interest.

You can get more information about the squid and watch more videos over at the Southwest Fisheries website.

LUMIS2 returns from successful field work In Bocas del Toro

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Last week the CVCE team returned from a very productive trip to Bocas Del Toro in Panama. We worked out of the Smithsonian Tropical Research Institute in Bocas.The field work included a large array of different imaging systems including LUMIS2.

lumis2inbocas

The first few days were devoted to maintaining tags of over 250 corals. After completing the maintenance work, we set out to collect images from all tagged corals, setup new transects, and focus in on nearly 45 targeted corals with six different sample modalities including:

  • White light RGB imaging
  • Fluorescence and reflectance spectrometer data
  • LUMIS and 5D fluorescence imaging
  • PAM data
  • Tissues samples
  • Genetic samples

All told it was a great trip with many successful imaging studies happening in parallel. A big thanks to the whole CVCE team!

FIDO Cruise

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The members of Jaffe lab recently returned from a week-long cruise in the Santa Barbara Basin; instruments deployed included FIDO, ZOOPS, and ROSA.
August 17 – August 23, 2011.

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