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Macrocystis pyrifera; Giant Kelp   

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Macrocystis pyrifera
Macrocystis pyrifera
Giant Kelp
Photographer: Lovell and Libby Langstroth
Organization: California Academy of Sciences
Collection: CalAcademy

ID: 0000 0000 0405 0755 (2005-04-16)

Copyright © 2005 California Academy of Sciences

  • date of photo  Nov 1983
  • latitude 36.54630   longitude -121.93121   max error distance 2866 meters     View on Google Maps.
  • horizontal datum World Geodetic System 1984
  • georeferencing source GeoLocate
  • location   Carmel Bay (Monterey County, California, US)
  • family Lessoniaceae
  • order Laminariales
  • class Phaeophyceae
  • plant community   Subtidal
  • notes   The holdfast anchors giant kelp to the substratum. No, these are not roots but rather haptera--structures that must withstand the drag of ocean surge and the lift of the floats. The alga actually absorbs nutrients through its floating blades. In fact, giant kelp will not grow in quiet water--it requires ocean surge to sweep nutrients across the blades. This cluster of blades enveloping the holdfast constitutes the alga's reproductive structures--they meiotically release millions of spores.
  • camera   Nikon in Oceanic housing
  • photo category: Plant - algae

  • common names   Giant Kelp (photographer)
  • Look for Jepson Manual treatments, maps (University & Jepson Herbaria)
  • View Calflora record for Macrocystis pyrifera
  • View all photos in CalPhotos of Macrocystis pyrifera
  • Check Google Images for Macrocystis pyrifera

  • The photographer's identification Macrocystis pyrifera has not been reviewed. Click here to review or comment on the identification.

    Using this photo   The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the image is clearly credited with Lovell and Libby Langstroth © California Academy of Sciences.

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