ANIMAL
ASSEMBLAGE
I think of
Lake Erie as an enormous soup of living animals, below is old but it shows
the wealth of life within the Lake. The data below is taken from 1995 using
the 12.5- liter plankton samples and the 5 liter benthic samples and projecting
them into a 1 cubic meter area.
April
Plankton
Cyclopoids
703.4
Calanoids
263.52
Nauplius
2016
Bosmina
31.68
Daphnia
0
Diaphansoma
0
Leptodora
0
Ostracoda
0
Polyphemus
0
Harpactacoida
0
Amphipods
0
Rotifers
566
-------------------------------------------------------------------------
May
Plankton
Benthic
Cyclopoids
4140
520
Calanoids
6111
575
Nauplius
11610
890
Bosmina
549
30
Daphnia
9
0
Diaphansoma
18
0
Leptodora
0
0
Ostracoda
0
0
Polyphemus
0
0
Harpactacoida
0
185
Amphipods
0
125
Rotifers
5940
50
Annelids
Nematodes
Hydracarina
Insects
Trichoptera
------------------------------------------------------------------------------------------
June
Plankton
Benthic
Cyclopoids
13104
1012.4
Calanoids
4079.5
555
Nauplius
9319.7
907.4
Bosmina
7447.7
698.4
Daphnia
304
0
Diaphansoma
1327.7
0
Leptodora
23.8
Ostracoda
Polyphemus
Harpactacoida
Rotifers
4000
-----------------------------------------------------------------------------
July
Plankton
Benthic
Cyclopoids
1471
445.6
Calanoids
175.7
45.6
Nauplius
2119.7
391.4
Bosmina
820.8
77.4
Daphnia
240
Diaphansoma
1087.9
Leptodora
7.9
Ostracoda
55.4
Polyphemus
95.7
Harpactacoida
7.9
Rotifers
5728
------------------------------------------------------------------------------
August
Plankton Benthic
Cyclopoids
5695.9
60
Calanoids
360
329.8
Nauplius
5071.7
685
Bosmina
279.7
37.4
Daphnia
248
Diaphansoma
0
Leptodora
47.5
Ostracoda
31.7
Polyphemus
0
Harpactacoida
0
Rotifers
1448
-----------------------------------------------------------------------------
September
Plankton
Benthic
Cyclopoids
3383.6
290
Calanoids
981
290
Nauplius
2889
375
Bosmina
487.4
195
Daphnia
81
Diaphansoma
153
Leptodora
9
Ostracoda
36
Polyphemus
0
Harpactacoida
0
Rotifers
3411
---------------------------------------------------------------------------
October
Plankton
Benthic
Cyclopoids
287.3
159.8
Calanoids
646.4
206.6
Nauplius
943.9
106.6
Bosmina
367.9
95
Daphnia
8
Diaphansoma
7.9
Leptodora
0
Ostracoda
271.4
Polyphemus
0
Harpactacoida
0
Rotifers
48