Microlife: Confederation Park - Cladophora from stream

Aug 20, 2011
Previous sample

This was a quick look at some of the Cladophora from the stream here. This had been growing in small clumps on rocks during most of the spring and summer, with large numbers of black fly and midge larvae making their home among the filaments. Attached Rhoicosphenia were also common.

These were still abundant in this sample, but otherwise it was very sparse. Among the algae there were a few small ciliates and an oligochaete. Some sand was also taken, and here there were some scattered diatoms and ciliates, most notably a colony of Opercularia. The water was returned before it could lose too much oxygen.

Kingdom Bacteria
…Phylum Cyanobacteria – blue-green algae

Oscillatoriales
Oscillatoriales - about 9 µm wide

Kingdom Plantae
…Phylum Chlorophyta – green algae

Cladophora
Cladophora - nodes about 55-75 µm
Cladophora
Cladophora - nodes about 60-80 µm

Kingdom Chromista
…Phylum Ciliophora – ciliates

Spirotrich
Spirotrichea - about 80 µm
Ciliates
Ciliophora - about 40, 70 µm
Opercularia
Opercularia - bodies about 95 µm
Sessilid
Sessilida - about 65 µm

…Phylum Ochrophyta – heterokont algae

Diatom
Diatomeae - about 80 µm
Diatom
Diatomeae - about 20 µm
Diatom
Diatomeae - about 50 µm
Rhoicosphenia
Rhoicosphenia - about 25 µm
Rhoicosphenia
Rhoicosphenia - about 35 µm

Kingdom Protozoa
…Phylum Euglenozoa

Euglenid, chlorophyte
Euglenida, Chlorophyta - about 35, 8 µm

Kingdom Animalia
…Phylum Gnathifera – rotifers & allies

Bdelloid
Bdelloida - about 55 µm wide

…Phylum Annelida – segmented worms

Oligochaete
Clitellata - about 150 µm wide

…Phylum Nematoda – roundworms

Roundworm
Nematoda - about 14 µm wide

…Phylum Arthropoda – insects, crustaceans & allies

Black fly larva
Simuliidae, larva - about 1.8 mm
Black fly larva
Simuliidae, larva - about 5.7 mm
Midge larva
Chironomidae, larva - about 2.4 mm
Midge larva
Chironomidae, larva - about 4.7 mm
Midge pupa
Chironomidae, pupa - about 6.2 mm