Microlife: Fish Creek Park - Moss from shallow marsh

Sep 13-15, 2008

This was a clump of submerged moss taken from a shallow marsh running along the bottom of a hill. The water was very shallow with a soft muddy bottom. The surface was sprinkled with duckweed and after a while several pond snails emerged, as well as some water beetles and leeches. These left many droppings and after a day or two the surface started filming over.

Throughout there were plentiful green Paramecium, Lecane, ostracods, and cyclopoids along with their larvae. There were innumerable flagellates including several types of euglenids. Vorticellids were also abundant, especially on the moss, where they were mingled with Stentor and Rotaria.

Some other types occurred away from the moss, including several Pandorina, colepids, and Lepadella. When bacterial films started developing they were home to small ciliates. A number of other protozoa and rotifers were only noticed once or twice.

↬ Thanks to protistologist Dr. Ferry Siemensma, author of Microworld, for the identification of Netzelia.

Kingdom Bacteria
…Phylum Cyanobacteria – blue-green algae

Nostocaceae
Nostocaceae - about 5 µm wide

Kingdom Plantae
…Phylum Chlorophyta – green algae

Pandorina
Pandorina - colony about 50 µm
Closterium
Closterium - about 105 µm

Kingdom Chromista
…Phylum Ciliophora – ciliates

Stentor
Stentor - front 100 µm wide
Euplotes
Euplotes - body about 90 µm
Halteria
Halteria - about 30 µm
Spirotrich
Spirotrichea - about 85 µm
Spirotrich
Spirotrichea - about 50 µm
Spirotrich
Spirotrichea - about 70 µm
Pleurostomatid
Pleurostomatida - about 115 µm
Ciliate
Ciliophora - about 130 µm
Phyllopharyngea
Phyllopharyngea - about 50 µm
Ciliate
Ciliophora - about 125 µm
Prostomes
Prostomatea - about 35 µm
Colepid
Colepidae - about 55 µm
Paramecium
Paramecium - about 120, 105 µm
Platycola
Platycola - bodies about 15 µm wide
Vorticellid
Vorticellidae - body about 55 µm
Vorticellid
Vorticellidae - body about 95 µm

…Phylum Ochrophyta – heterokont algae

Diatom
Diatomeae - about 85 µm
Diatom
Diatomeae - about 85 µm
Diatoms
Diatomeae - about 55 µm

Kingdom Protozoa
…Phylum Euglenozoa

Peranema
Peranema - body about 55 µm
Anisonema
Anisonema - body about 30 µm
Lepocinclis, Peranema
Lepocinclis, Peranema - bodies about 95, 45 µm
Lepocinclis
Lepocinclis - about 115 µm
Euglenid
Euglenida - about 35 µm
Euglenid
Euglenida - about 60 µm
Euglena
Euglena - about 85 µm

…Phylum Amoebozoa

Netzelia
Netzelia - shell about 105 µm

Kingdom Animalia
…Phylum Gnathifera – rotifers & allies

Rotaria
Rotaria - about 425 µm
Bdelloid
Bdelloida - about 190 µm
Colurella
Colurella - body about 55 µm
Lepadella
Lepadella - about 120 µm
Ploima
Ploima - about 145 µm
Ploima
Ploima - about 175 µm
Ploima
Ploima - about 90 µm
Lecane
Lecane - body about 100 µm

…Phylum Gastrotricha

Chaetonotid
Chaetonotidae - body about 105 µm

…Phylum Arthropoda – insects, crustaceans & allies

Podocopid
Podocopida - body about 225 µm
Harpacticoid
Harpacticoida - body about 670 µm
Cyclopoid moulting
Cyclopoida, moulting - about 135 µm wide
Cyclopoid
Cyclopoida - body about 430 µm
Cyclopod with eggs
Cyclopoida with eggs - body about 760 µm [composite]
Copepod larva
Copepoda, larva - body about 140 µm
Midge larva
Chironomidae, larva - about 80-85 µm wide

Uncertain objects

Uknown
Non-motile - cells about 40 µm