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Phytoplankton (Algae) and Zooplankton
Collected and Identified
in Little Fresh Pond and Black's Nook
by Squizzle Plekavich
 
 
PHOTOS of some Fresh Pond Algae taken by Squizzle
2023
____________________
Black's Nook: 2:10 p.m., 12/11/23.
Water temperature 46.7 degrees F.
Phytoplankton
Dinobryon 
Euglena 
Anabaena
Eudorina
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella, Synchaeta, Brachionus, Asplanchna)
_______________________
Little Fresh Pond: 2:00 p.m., 12/11/23.
Water temperature 46.9 degrees F.
Phytoplankton
Cosmarium (<1/ml)
unknown filamentous green
Zooplankton
Cladocerans
Copepods
Rotifers
____________________
Black's Nook: 3:40 p.m., 11/16/23.
Water temperature 45.5 degrees F.
Phytoplankton
Desmidium
Synura 
Docidium 
Scenedesmus
Zooplankton
Cladocerans
Copepods
Rotifers
 
_______________________ 
Little Fresh Pond: 3:20 p.m., 11/16/23.
Water temperature 48.5 degrees F.
Phytoplankton
Spinocosmarium (<1/ml) 
Closterium 
Fragilaria
Cosmarium
Staurastrum
Micrasterias
Zooplankton
Cladocerans
Copepods
Rotifers
____________________
Black's Nook: 12:50 p.m., 10/16/23.
Water temperature 57.3 degrees F.
Phytoplankton
Closterium 
Micrasterias 
Docidium
Sphaerozosma
Navicula
 
Oscillatoria
 
Spinocosmarium
Zooplankton
Cladocerans
Copepods
Rotifers
_______________________
Little Fresh Pond: 12:35 p.m., 10/16/23.
Water temperature 59.7 degrees F.
Phytoplankton
Volvox (<1/ml) 
Fragilaria
Cosmarium
Micrasterias
 
Spinocosmarium
Oedogonium
 
Staurastrum
Zooplankton
Cladocerans
Copepods
Rotifers
____________________
Black's Nook: 10:40 a.m., 9/13/23.
Water temperature 73.4 degrees F. 
Phytoplankton
Sphaerozosma
Docidium
Desmidium
Spinocosmarium
Trachelomonas
Oscillatoria
unknown green filamentous
Zooplankton
Cladocerans
Copepods
Rotifers
_______________________
Little Fresh Pond: 10:25 a.m., 9/13/23.
Water temperature 76.7 degrees F. 
Phytoplankton
Spinocosmarium (1/ml)
Cosmarium (1/ml)
Trachelomonas
Volvox 
Zooplankton
Cladocerans
Copepods
Rotifers
 
____________________
Black's Nook: 3:10 p.m., 8/20/23.
Water temperature 79.1 degrees F.
Phytoplankton
Synura
Euglena
Sphaerozosma
Staurastrum
Closterium
Docidium
Anabaena
Fragilaria
Spinocosmarium
Ankistrodesmus
Oscillatoria
Desmidium
Zooplankton
Cladocerans
Copepods
Rotifers
 
_______________________
Little Fresh Pond: 2:55 p.m., 8/20/23.
2:55 p.m., 8/20/23.
Phytoplankton
Spinocosmarium (1/ml)
Staurastrum (1/ml)
Cosmarium
Desmidium
Zooplankton
Cladocerans
Copepods
Rotifers
 
____________________
Black's Nook: 2:55 p.m., 7/20/23.
Water temperature 81.2 degrees F.
Phytoplankton
Desmidium
Cosmarium 
Staurastrum
Euglena
Sphaerozosma
Spinocosmarium
Docidium
Volvox
Tetraspora
Anabaena
Ankistrodesmus
Micrasterias
Closterium
Synura
Spyrogyra
Fragilaria
Zooplankton
Cladocerans
Copepods
Rotifers
 
_______________________
Little Fresh Pond: 2:45 p.m., 7/20/23.
Water temperature 88.6 degrees F.
Phytoplankton
Staurastrum (5/ml) 
Closterium (1/ml) 
Cosmarium (1/ml)
Oscillatoria (1/ml)
Spinocosmarium (1/ml)
Micrasterias (1/ml)
Volvox
Synura
Zooplankton
Cladocerans
Copepods
Rotifers
____________________
Black's Nook: 1:55 p.m., 6/24/23.
Temperature 75.1 degrees F.
Phytoplankton
Spinocosmarium 
Volvox 
Desmidium
Uroglenopsis
Anabaena
Closterium
Staurastrum
Fragilaria
Bulbochaete
Sphaerozosma
Zooplankton
Cladocerans
Copepods
Rotifers
_______________________
Little Fresh Pond: 1:40p.m., 6/24/23.
Water temperature 75.6 degrees F.
Phytoplankton
Staurastrum (1/ml)
Synura 
Oedogonium
Mougeotia
Cosmarium
Tetraspora ?
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella)
____________________
Black's Nook: 5/23/23, 11:25 a.m.
Water temperature 69.5 degrees F.
Phytoplankton
Desmidium 
Synura 
Spyrogyra
Closterium
Ceratium
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella)
_______________________
Little Fresh Pond: 5/23/23, 11:05 a.m.
5/23/23, 11:05 a.m.
Phytoplankton
Oedogonium (1/ml) 
Eudorina (1/ml)
Staurastrum
Fragilaria
 
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella)
 
 Black's Nook: 2:20 p.m., 4/16/23.
Water temperature 66.2 degrees F.
Phytoplankton
Euglena
Eudorina
Trachelomonas
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella, Asplanchna, Filinia)
 
_______________________
Little Fresh Pond: 2:00 p.m., 4/16/23.
2:00 p.m., 4/16/23.
Phytoplankton
Dinobryon (9/ml)
Staurastrum (1/ml) 
Oedogonium
Volvox
Cosmarium
Fragilaria
Closterium
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella, Synchaeta) 
____________________
Black's Nook: 12:30 p.m., 3/30/23.
Water temperature 49.9 degrees F.
Phytoplankton
Dinobryon 
Eudorina 
Trachelomonas
Zooplankton
Cladocerans
Copepods
Rotifers (Asplanchna, Filinia)
________________________
Little Fresh Pond: 12:15 p.m., 3/30/23.
Water temperature 49.5 degrees F.
Phytoplankton
Fragilaria (<1/ml) 
Cosmarium
Staurastrum
Dinobryon
Eudorina
Zooplankton
Cladocerans 
Copepods
Rotifers (Keratella)
____________________
Black's Nook: 2:25 p.m., 2/19/23.
Water temperature 44.4 degrees F.
Phytoplankton
Desmidium
Dinobryon 
Cosmarium
Synura
Eudorina
Closterium?
 
Zooplankton
Cladocerans
Copepods
Rotifers (Keratella, Brachionus)
________________________
Little Fresh Pond: 2:10 p.m., 2/19/23
2:10 p.m., 2/19/23
Phytoplankton
Fragilaria (<1/ml)
Cosmarium
Euglena
Synura 
Euglena
Zooplankton
Cladocerans
Copepods
Rotifers
____________________
Black's Nook: 1:20 p.m., 1/4/23. 
Water temperature  37.6 degrees F. ( under partial ice cover)
Phytoplankton
Synura 
Pinnularia 
Zooplankton
Cladocerans 
Copepods
Rotifers (Keratella)
________________________
Little Fresh Pond: 1:00 p.m., 1/4/23.
Water temperature 40.0 degrees F.
Phytoplankton
Dinobryon (<1/ml)
Staurastrum
Oedogonium
Zooplankton
Cladocerans 
Copepods
Rotifers (Synchaeta, Keratella)