It doesn't appear to be the typical filamentous algae that most pondowners have. From your description and since it looks like there is a good amount of gelatinous texture to it, it it could be one of the filamentous bluegreen algae such as Nostoc or Nodularia or possibly a species of Anabaena that forms gelatinous "globs". For a positive identification it needs to be examined with a microscope by someone familiar with algae. The gelatinous nature will likely make it difficult to kill with chemicals because the chemicals will have a difficult time penetrating the gelatinous coating.


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