
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN: 9780134746241
Author: Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher: PEARSON
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Question
Which species is the most abundant? Explain why the species is the most important in relation with the factors affecting the organisms.

Transcribed Image Text:Planktons
Table 7.2 Total counting of planktons in the lake.
No
Statio Statio Station
Total Number
of Species
Species
n 1
n 2
3
(AC X EF)
1
5
3
93
Keratella cochrealis
Paracyclops fimbriatus
2
6
0
60
4
2
46
Ectocyclops pharelatus
Ceridodaphnia cornuta
10
2
107
5
Moina macropora
3
7
73
6 Keratella tropica
1
2
26
7 Brachionus forficula
8
4
93
8
Trichocerca capucina
2
5
3
67
9
Anabaena torulosa
4
3
1
53
10
4
5
4
87
Microcystis aurigenosa
11 Pediastrum simplex
12 Euglena viridis
5
4
6
15
100
6
3
2
11
73
Length of one strip = 50 mm
Width of one strip = 1.0 mm
EF= 1,000 mm³/ 50 x 1.0 x 1.0 x 3= 6.67
Depth of one strip = 1.0 mm
Number of strips used = 3
1. Which species is the most abundant? Explain why the species is the most
important in relation with the factors affecting the organisms.
ایا جا
3
4
63TTINO
1
4
1
1
2
Actual
count (AC)
14
9
7
16
11
4
14
10
8
13
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