Microlife: Confederation Park - Cladophora from stream

Jul 3-4, 2010
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This sample was taken from the shallow stream here, which at this point had occasional patches of filamentous green algae on some rocks. This looked tangled and relatively to the unaided eye, a little like some hanging lichens, and turned out to be Cladophora.

Two rocks with algae were taken, along with two mayfly larvae. The fronds were home to many fly larvae, mainly midges but also black flies varying a great deal in size. Unfortunately these generally did not survive the single night, except the largest; likely the water needed to be aerated for them to be kept even this short amount of time.

The filaments had numerous small attached diatoms, but otherwise microscopic life was not particularly abundant. Pleurostomes were the most common among the algae, along with other ciliates and some rotifers. There were also several sorts of euglenids, small amoebae, and Closterium in sediment from the bottom.

Kingdom Bacteria
…Phylum Cyanobacteria – blue-green algae

Oscillatoriales
Oscillatoriales - about 12 µm wide

Kingdom Plantae
…Phylum Chlorophyta – green algae

Cladophora
Cladophora - nodes about 45-55 µm
Closterium
Closterium - about 215 µm
Closterium
Closterium - about 500 µm

Kingdom Chromista
…Phylum Ciliophora – ciliates

Aspidisca
Aspidisca - about 30 µm
Holosticha
Holosticha - about 75 µm
Spirotrich
Spirotrichea - about 110 µm
Spirotrich
Spirotrichea - about 115 µm
Stylonychia
Stylonychia - body about 110 µm
Pleurostome
Pleurostomatida - about 75 µm
Pleurostome
Pleurostomatida - about 115 µm
Ciliate
Ciliophora - about 40 µm
Vorticellid
Vorticellidae - body about 90 µm

…Phylum Ochrophyta – heterokont algae

Diatoma
Diatoma - about 45 µm wide
Diatoms
Diatomeae - about 50 µm wide
Diatoms
Diatomeae - extending about 35-55 µm
Diatoms
Diatomeae - about 50 µm
Diatom
Diatomeae - about 75 µm
Rhoicosphenia
Rhoicosphenia - about 25-35 µm

Kingdom Protozoa
…Phylum Euglenozoa

Phacus
Phacus - about 35 µm
Euglenid
Euglenida - about 70 µm
Euglena
Euglena - about 190 µm

…Phylum Percolozoa

Heterolobosea
Heterolobosea - about 50 µm

…Phylum Amoebozoa

Thecamoeba
Thecamoeba - about 50 µm

Kingdom Animalia
…Phylum Gnathifera – rotifers & allies

Bdelloid
Bdelloida - about 40 µm wide
Bdelloid
Bdelloida - body about 180 µm
Colurella
Colurella - body about 125 µm
Lepadella
Lepadella - body about 100 µm

…Phylum Annelida – segmented worms

Annelid
Annelida - about 1.1 mm

…Phylum Arthropoda – insects, crustaceans & allies

Black fly larva
Simuliidae, larva - about 860 µm
Black fly larva
Simuliidae, larva - about 6.5 mm
Midge larva
Chironomidae, larva - about 500 µm
Midge larva
Chironomidae, larva - about 1.4 mm

Uncertain objects

Unknown
Heliozoan - body about 30 µm
Unknown
Heliozoan - body about 35 µm