Microlife: Fish Creek Park - Spirogyra from creek

Jun 3-6, 2009

This was taken from a shallow rocky part of the creek that was sheltered from the current. The surface was covered in fine mud and bubbly green mats, with more growing on the rocks below. These were mainly Spirogyra but also had smaller amounts of Zygnema, Mougeotia, and brown cyanobacterial filaments, the last sometimes gliding.

A wide variety of diatoms occurred throughout. Water taken off the algae was home to a great many ciliates, including small and possibly spineless prostomes in large groups, Aspidisca and other small oval kinds, and some larger Phyllopharyngea, Stylonychia, green Paramecium, and contractile pleurostomes.

Several other types of ciliates and rotifers were seen once or twice, as well as some roundworms and midge larvae. There were also a few amoebae including Actinophrys, Vampyrella feeding on the algae, and other heliozoan-like or discose sorts.

Kingdom Bacteria
…Phylum Cyanobacteria – blue-green algae

Oscillatoriales
Oscillatoriales - about 16 µm wide

Kingdom Plantae
…Phylum Chlorophyta – green algae

Hydrodictyaceae
Hydrodictyaceae - colony about 55 µm
Mougeotia
Mougeotia - about 25 µm wide
Mougeotia
Mougeotia - about 35 µm wide
Zygnema
Zygnema - about 35 µm wide
Spirogyra
Spirogyra - about 35 µm wide
Closterium
Closterium - about 145 µm
Cosmarium
Cosmarium - about 30 µm
Cosmarium
Cosmarium - about 50 µm

Kingdom Chromista
…Phylum Cercozoa

Vampyrella, Prostomatea
Vampyrella, Prostomatea - bodies about 30, 40 µm

…Phylum Ciliophora – ciliates

Stentor
Stentor - front about 95 µm wide
Aspidisca
Aspidisca - body about 40 µm
Euplotes
Euplotes, Aspidisca - about 50, 40 µm
Strobilidium
Strobilidium - about 50 µm
Spirotrich
Spirotrichea - body about 45 µm
Spirotrich
Spirotrichea - body about 55 µm
Spirotrich
Spirotrichea - body about 55 µm
Spirotrich
Spirotrichea - about 245 µm
Stichotricha
Stichotricha - about 120 µm
Spirotrich
Spirotrichea - body about 120 µm
Spirotrich
Spirotrichea - body about 170 µm
Stylonychia
Stylonychia - body about 180 µm
Litonotus
Litonotus - about 255 µm
Phyllopharyngea
Phyllopharyngea - about 130 µm
Ciliate
Ciliophora - about 45 µm
Ciliate
Ciliophora - about 45 µm
Ciliate
Ciliophora - about 50 µm
Prostomes
Prostomatea - about 35-40 µm
Colepid dividing
Colepidae, dividing - halves about 30-35 µm
Lembadion
Lembadion - about 65 µm
Frontonia
Frontonia - about 160 µm
Paramecium
Paramecium - about 120 µm
Pleuronema
Pleuronema - about 80 µm
Vorticellid
Vorticellidae - body about 95 µm

…Phylum Miozoa

Dinoflagellate
Peridinea - about 25 µm

…Phylum Ochrophyta – heterokont algae

Actinophrys
Actinophrys - body about 30 µm
Actinophrys
Actinophrys - body about 45 µm
Diatoms
Diatomeae - about 35, 25 µm wide
Diatoms
Diatomeae - about 55 µm wide
Diatoms
Diatomeae - up to 115 µm
Diatoms
Diatomeae - about 230-245 µm
Diatoms
Diatomeae - up to 115 µm
Diatoms
Diatomeae - about 250, 185, 80 µm
Nitzschia
Nitzschia - about 360 µm
Gyrosigma
Gyrosigma - about 100 µm
Diatom
Diatomeae - about 70 µm
Diatoms
Diatomeae - about 110, 75 µm
Gomphonema
Gomphonema - cells about 40-45 µm
Diatoms
Diatomeae - up to 60 µm
Diatom
Diatomeae - about 55 µm
Cymbella
Cymbella - about 90 µm
Cymbella
Cymbella - about 95 µm
Diatom
Diatomeae - about 135 µm
Diatom
Diatomeae - about 190 µm
Diatom
Diatomeae - about 115 µm

Kingdom Protozoa
…Phylum Euglenozoa

Anisonema
Anisonema - body about 25 µm

…Phylum Amoebozoa

Discosea?
Discosea? - about 45 µm wide
Discosea
Mayorella - about 55 µm wide

Kingdom Animalia
…Phylum Gnathifera – rotifers & allies

Colurella
Colurella - body about 90 µm
Lepadella
Lepadella - about 125 µm
Ploima
Ploima - body about 70 µm
Ploima
Ploima - about 100 µm
Euchlanis
Euchlanis - about 410 µm
Trichotria
Trichotria - body and foot about 315 µm
Scaridium
Scaridium - about 390 µm

…Phylum Nematoda – roundworms

Roundworm
Nematoda - about 540 µm

…Phylum Arthropoda – insects, crustaceans & allies

Midge larva
Chironomidae, larva - about 680 µm

Uncertain objects

Unknown
Bacterial filaments - about 3 µm wide
Unknown
Non-moving - body about 25 µm
Unknown
Heliozoan - body about 50 µm
Unknown
Non-moving heliozoan-like - body about 45 µm
Unknown
Flexible and worm-like with cilia - body about 185 µm