Washington, DC's First Living Machine™

A close up picture of the marsh ecosystem.
A close up picture of the marsh ecosystem. Photo (c) M. Frautschi

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Species Observed in the DC Living Machine

These are very preliminary lists of the species we have observed so far.

Plants/Algae

  1. hydrodyctyon (geodesic tube algae)
  2. azolla (water fern algae)
  3. duckweed
  4. water pennywort
  5. bladderwort (yellow flower)
  6. frogbit/dogbit
  7. water lettuce
  8. water hyacinth
  9. filamentous algae
  10. algae spp.
  11. arum arum
  12. spikerush
  13. wood nettle
  14. rush sp. / sedge sp.
  15. iris spp.
  16. water willow (?)
  17. low chordate leaved vine
  18. millefoil
  19. elodea

Fish

  1. bluegill (6)
  2. pumpkinseed (4)
  3. gambusia (0)
  4. goldfish (4)
  5. plecostamus (0)
  6. blue (?) catfish (0)
  7. silver minnows / dace (sp. not yet identified) (14)

Snails

  1. Physa spp. (2 spp.) -- small, brown fragile shells
  2. Planorbis spp. (Ram's Horn)
  3. Melanoides granifera -- black, conical, hard shell

Insects and Other Invertebrates

  1. rust colored fleas/mites (springtails? [O. Collembola])
  2. bluegray jumping aphids (also springtails?)
  3. mosquito larvae
  4. damselflies and larvae ([O. Odonata])
  5. iridescent orange/green small flies (which may eat springtails; [O. Diptera])
  6. wasps (several species -- black and pale yellow stripes; reddish brown and yellow stripes; plain black; iridescent blue-black; [O. Hymenoptera])
  7. hornets (yellow and black stripes)
  8. water beetles ([O. Coleoptera])
  9. praying mantis
  10. amphipods
  11. cyclops

Birds

  1. catbirds
  2. sparrows
  3. mockingbirds

Worms

  1. water worm (bigger than nemotodes)
  2. flat water worm (possibly a leech)
  3. tube worms

Vertebrates

  1. Will Hughes (sp. neighborus inquistivis, age 4)
  2. Charlie Hughes (sp. neighborus inquistivis, age 2)



[duckweed] [striped bass]

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Copyright (c) 2000 Philip Bogdonoff
http://pbogdonoff.home.igc.org/LivingMachine/species.html
27 June 2001