Public coordinates shown as a random point within 10KM of the true coordinates. True coordinates are only visible to you and the curators of projects to which you add the observation.
private
Coordinates completely hidden from public maps, true coordinates only visible to you and the curators of projects to which you add the observation.
open
Everyone can see the coordinates unless the taxon is threatened.
Description
Geesh my tire is feeling a little spongy today.
Oct. 24, 2011
09:28 AM PDT
Comments & Identifications
Encrusting yellow sponges in SF Bay are generally either Halichondria "bowerbanki" or Haliclona spp. Given the lack of apparent oscules, this is what is called H. bowerbanki. Recent genetic work, however reveals that this entire genus is a mess and some of the more commonly used species names are meaningless.
The data quality assessment is a summary of an observation's accuracy. All
observations start as "casual" grade, and achieve
"research" grade when
the iNat community agrees with the observer's ID, where an "agreeing"
identification is one that matches exactly or is of a child taxon of the
observer's ID. For example, if Scott says it's a mammal and Ken-ichi
says it's Homo sapiens, then Ken-ichi agrees with Scott.
the observation has a date
the observation is georeferenced (i.e. has lat/lon coordinates)
the observation has a photo
Observations will revert to "casual" grade if the above conditions aren't met or
the community agrees the location doesn't looks accurate (e.g. monkeys in the middle of the ocean, hippos in office buildings, etc.)
the community agrees the organism isn't wild/naturalized (e.g. captive or cultivated by humans or intelligent space aliens)
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Comments & Identifications
Encrusting yellow sponges in SF Bay are generally either Halichondria "bowerbanki" or Haliclona spp. Given the lack of apparent oscules, this is what is called H. bowerbanki. Recent genetic work, however reveals that this entire genus is a mess and some of the more commonly used species names are meaningless.
Are they native to our bay?
Also do they change color? Because I have found very similar sponges in the same area, only a deeper orange-red color.
They are native to the US east coast.
The red sponge is probably Clathria prolifera, another east coast transplant.
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