Hubungan Kualitas Air dengan Struktur Komunitas Ikan di Sungai Buaya Kabupaten Sergai dan Kabupaten Deli Serdang Provinsi Sumatera Utara
59
Lampiran A. Peta Lokasi
Keterangan:
Stasiun 1
Stasiun 2
Stasiun 3
: Daerah Perkebunan
: Daerah Pariwisata
: Daerah Hilir Sungai
59
Universitas Sumatera Utara
60
Lampiran B. Bagan Kerja Metode Winkler untuk Mengukur DO
Sampel Air
1 ml MnSO4
1 ml KOHKI
Dikocok
Didiamkan
Sampel Endapan
Puith/Cokelat
1 ml H2SO4
Dikocok
Didiamkan
Larutan Sampel
Berwarna Cokelat
Diambil 100 ml
Dititrasi Na2S2O3 0,00125 N
Sampel Berwarna
Kuning Pucat
Ditambah 5 tetes Amilum
Sampel
Berwarna Biru
Dititrasi dengan Na2S2O3
0,00125 N
Sampel Bening
Dihitung volume Na2S2O3
yangterpakai
Hasil
(Suin, 2002)
60
Universitas Sumatera Utara
61
Lampiran C. Bagan Kerja Metode Winkler untuk Mengukur BOD5
Sampel Air
Sampel Air
Sampel Air
diinkubasi selama 5 hari
pada temperatur 20°C
dihitung nilai DO akhir
DO Akhir
dihitung nilai DO awal
DO Awal
Keterangan :
Penghitungan nilai DO awal dan DO akhir sama
dengan penghitungan Nilai DO
Nilai BOD = Nilai awal – Nilai DO akhir
(Suin, 2002)
61
Universitas Sumatera Utara
62
Lampiran D. Tabel Kelarutan O2 (Oksigen)
T˚C
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
14,6
13,77
13,40
13,05
12,70
12,37
12,06
11,76
11,47
11,19
10,92
10,67
10,43
10,20
9,98
9,76
9,56
9,37
9,18
9,01
8,84
8,68
8,53
8,38
8,25
8,11
7,99
7,86
7,75
7,64
7,53
14,12
13,74
13,37
13,01
12,67
12,34
12,03
11,73
11,44
11,16
10,90
10,65
10,40
10,17
9,95
9,74
9,54
9,35
9,18
8,99
8,83
8,67
8,52
8,37
8,23
8,10
7,97
7,85
7,74
7,62
7,52
14,08
13,70
13,33
12,98
12,64
12,31
12,00
11,70
11,41
11,14
10,87
10,62
10,38
10,15
9,93
9,72
9,52
9,33
9,15
8,98
8,81
8,65
8,50
8,36
8,22
8,09
7,96
7,84
7,72
7,61
7,51
14,04
13,66
13,30
12,94
12,60
12,28
11,97
11,67
11,38
11,11
10,85
10,60
10,36
10,13
9,91
9,70
9,50
9,31
9,13
8,96
8,79
8,64
8,49
8,34
8,21
8,07
7,95
7,83
7,71
7,60
7,50
14,00
13,63
13,26
12,91
12,57
12,25
11,94
11,64
11,36
11,08
10,82
10,57
10,34
10,11
9,89
9,68
9,48
9,30
9,12
8,94
8,78
8,62
8,47
8,33
8,19
8,06
7,94
7,82
7,70
7,59
7,48
13,97
13,59
13,22
12,87
12,54
12,22
11,91
11,61
11,33
11,06
10,80
10,55
10,31
10,09
9,87
9,66
9,46
9,28
9,10
8,93
8,76
8,61
8,46
8,32
8,18
8,05
7,92
7,81
7,69
7,58
7,47
13,93
13,55
13,19
12,84
12,51
12,18
11,88
11,58
11,30
11,03
10,77
10,53
10,29
10,06
9,85
9,64
9,45
9,26
9,08
8,91
8,75
8,59
8,44
8,30
8,17
8,04
7,91
7,79
7,68
7,57
7,46
13,89
13,51
13,15
12,81
12,47
12,15
11,85
11,55
11,27
11,00
10,75
10,50
10,27
10,04
9,83
9,62
9,43
9,24
9,06
8,89
58,73
8,58
8,43
8,29
8,15
8,02
7,90
7,78
7,67
7,56
7,45
13,85
13,48
13,12
12,77
12,44
12,12
11,82
11,52
11,25
10,98
10,72
10,48
10,24
10,02
9,81
9,60
9,41
9,22
9,04
8,88
8,71
8,56
8,41
8,27
8,14
8,01
7,89
7,77
7,66
7,55
7,44
13,81
13,44
13,08
12,74
12,41
12,09
11,79
11,50
11,22
10,95
10,70
10,45
10,22
10,00
9,78
9,58
9,39
9,20
9,03
8,86
8,70
8,55
8,40
8,26
8,13
8,00
7,88
7,76
7,65
7,54
7,43
(Barus, 2004)
62
Universitas Sumatera Utara
63
Lampiran E. Bagan Kerja Pengukuran Nitrat (NO3)
5 ml sampel air
1 ml NaCl (pipet volum)
5 ml H2SO4
4 tetes Brucine Sulfat
Sulfanic Acid
Larutan
Dipanaskan selama 25 menit
Larutan
Didinginkan
Diukur dengan
Spektrofotometer pada λ = 410 nm
Hasil
63
Universitas Sumatera Utara
64
Lampiran F. Bagan Kerja Pengukuran Posfat (PO43-)
5 ml sampel air
1 ml Amstrong Reagent
1 ml Ascorbic Acid
Larutan
Dibiarkan selama 20 menit
Diukur dengan
Spektrofotometer pada λ = 880 nm
Hasil
64
Universitas Sumatera Utara
65
Lampiran G. Panjang dan Berat Ikan
a. Ikan Gabus (Channa striata )
No
1
2
3
4
Panjang
(L)
Berat
(W)
11
13
22
24
9,5
10,8
20,9
23,4
Jenis
kelamin
-
Total
Log L
Log W
Log L*Log W
Log L2
1,041393
1,113943
1,342423
1,380211
0,977724
1,033424
1,320146
1,369216
1,018194211
1,151175523
1,772194316
1,889807119
1,084499
1,24087
1,802099
1,904983
4,87797
4,70051
5,831371168
6,03245
b. Ikan Hampala (Hampala macrolepidota )
No
Panjang
(L)
Berat
(W)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
12,5
11,7
20,5
14,7
11,7
21
10,8
9,8
17,5
11,7
10,1
17,5
23,6
15,5
20,5
11,8
10,8
9,8
8,9
7,1
18,5
16,1
15,5
13,4
10,8
11,7
15,2
15,9
11,5
10,5
16,1
15,1
12,3
10,5
17,2
12,7
19
20
21
22
10,2
12,8
12,9
22,9
13,1
12,5
25,1
22,8
Jenis
kelamin
Betina
Jantan
Betina
Jantan
Jantan
Betina
Betina
Betina
Betina
Jantan
Jantan
Jantan
Jantan
Jantan
Jantan
Total
Log L
Log W
Log L*Log W
Log L2
1,09691
1,068186
1,311754
1,167317
1,068186
1,322219
1,033424
0,991226
1,243038
1,068186
1,004321
1,243038
1,133572865
1,05881368
1,63055996
1,246911873
1,072801892
1,643568892
1,2032
1,1410
1,7206
1,3626
1,1410
1,7483
1,372912
1,190332
1,311754
1,071882
1,800922621
1,27589513
1,8849
1,4169
1,033424
0,991226
0,94939
0,851258
0,981122186
0,843789472
1,0679
0,9825
1,267172
1,206826
1,190332
1,127105
1,508354675
1,360219236
1,6057
1,4564
1,033424
1,068186
1,181844
1,201397
1,221345239
1,283315423
1,0679
1,1410
1,060698
1,021189
1,206826
1,178977
1,2800776
1,203958642
1,1250
1,0428
1,089905
1,021189
1,235528
1,103804
1,34660877
1,127192548
1,1878
1,0428
1,0086
1,10721
1,11059
1,359835
1,120140973
1,505623403
1,0172
1,2259
1,117271
1,09691
1,399674
1,357935
1,563815272
1,489532331
1,2482
1,2032
24,72105
25,42136
28,69814268
28,033
Log L
Log W
Log L*Log W
Log L2
1,130334
1,068186
1,451786
1,352183
1,641003233
1,444382248
1,277654
1,141021
1,198657
1,509203
1,809016299
1,436779
c. Ikan Cencen (Mystacoleucus marginatus)
No
1
2
3
Panjang
(L)
Berat (W)
13,5
11,7
28,3
22,5
15,8
32,3
Jenis
kelamin
Jantan
Betina
65
Universitas Sumatera Utara
66
No
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Panjang
(L)
Berat (W)
11,5
16,6
17,8
10,8
21,3
12,8
11,7
12
13
15,1
15,4
16
13,4
12,5
7,8
22
21
13
13,7
10
11
12
10,8
10
20,8
22,7
28,9
15,1
38,5
22,1
18,1
21
25,4
30,8
31,2
31,8
25,8
21,4
11
18,3
18,1
13,2
11,7
10,8
10,1
13,2
12,8
12,5
11,5
13,4
16
19,6
20
13,1
15,7
15,9
18,4
19,1
Jenis
kelamin
Jantan
Jantan
Betina
Jantan
Jantan
Jantan
Betina
Betina
Betina
Jantan
Jantan
Betina
Betina
Jantan
Jantan
Jantan
Betina
Betina
Betina
Betina
Total
Log L
Log W
Log L*Log W
Log L2
1,060698
1,220108
1,25042
1,033424
1,32838
1,10721
1,068186
1,079181
1,113943
1,178977
1,187521
1,20412
1,127105
1,09691
0,892095
1,342423
1,322219
1,113943
1,136721
1
1,041393
1,079181
1,033424
1
1,318063
1,356026
1,460898
1,178977
1,585461
1,344392
1,257679
1,322219
1,404834
1,488551
1,494155
1,502427
1,41162
1,330414
1,041393
1,262451
1,257679
1,120574
1,068186
1,033424
1,004321
1,120574
1,10721
1,09691
1,398066933
1,654498116
1,826735884
1,218382785
2,106093695
1,488524529
1,343434472
1,426914266
1,56490518
1,75496698
1,774339541
1,809102518
1,591043344
1,459344189
0,929020794
1,694742976
1,662926878
1,248255881
1,214228839
1,033423755
1,045892932
1,209302371
1,144217085
1,096910013
1,12508
1,488664
1,56355
1,067965
1,764592
1,225914
1,141021
1,164632
1,24087
1,389987
1,410205
1,449905
1,270365
1,203212
0,795833
1,802099
1,748264
1,24087
1,292134
1
1,084499
1,164632
1,067965
1
1,060698
1,127105
1,20412
1,292256
1,30103
1,117271
1,1959
1,201397
1,264818
1,281033
1,18508725
1,347904237
1,446626284
1,634468511
1,666662836
1,12508
1,270365
1,449905
1,669926
1,692679
36,39997
40,94203
46,87042485
41,76567
d. Ikan Lele merah (Glypthotorax platygonoides)
No
1
2
3
4
5
6
7
8
Panjang
(L)
Berat
(W)
18,1
11,3
23
16,5
10,5
8,5
7,4
7,8
10
8,9
15,4
12,8
12,5
12,8
14,8
13,5
Jenis
kelamin
-
Log L
Log W
Log L*Log W
Log L2
1,257679
1,053078
1,361728
1,217484
1,712615924
1,282106097
1,581755
1,108974
1,021189
0,929419
0,869232
0,892095
1
0,94939
1,187521
1,10721
1,09691
1,10721
1,170262
1,130334
1,212683453
1,029061901
0,953468977
0,987736038
1,170261715
1,073127584
1,042828
0,86382
0,755564
0,795833
1
0,901341
66
Universitas Sumatera Utara
67
No
9
10
11
12
13
14
15
Panjang
(L)
Berat
(W)
11,8
8,5
9
5,4
6,5
11
8,9
20
3,6
6,9
4,8
4,9
9,5
7,2
Jenis
kelamin
-
Total
Log L
Log W
Log L*Log W
Log L2
1,071882
0,929419
0,954243
0,732394
0,812913
1,041393
0,94939
1,30103
0,556303
0,838849
0,681241
0,690196
0,977724
0,857332
1,394550643
0,517038073
0,800465461
0,498936831
0,561069612
1,018194211
0,813942904
1,148931
0,86382
0,910579
0,536401
0,660828
1,084499
0,901341
14,46371
15,28133
15,02525942
14,15651
Log L
Log W
Log L*Log W
Log L2
0,740363
1,20412
1,198657
0,832509
0,146128
1,10721
1,093422
0,568202
0,10818775
1,33321365
1,31063765
0,473033
0,548137
1,449905
1,436779
0,693071
3,975649
2,914961
3,22507205
4,127892
Log L
Log W
Log L*Log W
Log L2
1,146128
1,079181
1,673021
1,546543
1,91749617
1,66899984
1,313609
1,164632
1,053078
1,041393
1,017033
1,033424
1
1,079181
1,485721
1,480007
1,426511
1,450249
1,238046
1,515874
1,56458121
1,5412684
1,45080951
1,49872188
1,2380461
1,63590262
1,108974
1,084499
1,034357
1,067965
1
1,164632
1,113943
1,146128
1,176091
1,322219
1,318063
1,201397
1,532754
1,685742
1,716838
1,833784
1,802089
1,753583
1,70740155
1,93207587
2,01915784
2,42466508
2,37526778
2,10674964
1,24087
1,313609
1,383191
1,748264
1,737291
1,443355
15,72726
22,14076
25,0811435
17,80525
e. Ikan Baung (Mystus nemurus)
No
1
2
3
4
Panjang
(L)
Berat
(W)
5,5
16
15,8
6,8
1,4
12,8
12,4
3,7
Jenis
kelamin
-
Total
f. Ikan Nila (Oreochromis niloticus)
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Panjang
(L)
Berat
(W)
14
12
47,1
35,2
11,3
11
10,4
10,8
10
12
30,6
30,2
26,7
28,2
17,3
32,8
13
14
15
21
20,8
15,9
34,1
48,5
52,1
68,2
63,4
56,7
Total
Jenis
kelamin
Betina
Jantan
Jantan
Jantan
Jantan
Jantan
Jantan
Betina
Betina
Betina
Betina
Betina
Betina
Betina
67
Universitas Sumatera Utara
68
g. Ikan Jurung (Tor tambroides)
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Panjang
(L)
Berat
(W)
25,4
34,5
18,9
25,6
17,8
21,5
8,7
10,5
11,8
9,3
22,4
13,5
9
95,6
98,3
68,9
93,4
87,5
93
61,4
65,5
69,3
53,8
92,3
83,1
21,5
8
12,5
12
14,5
15
22,8
23,7
23,5
25,9
28
Jenis
kelamin
Betina
Betina
Jantan
Betina
Jantan
Jantan
-
Total
log a =
log b =
∑ log W ×∑ log L
2
N.∑ log L
∑ log W – N log a
Log L
Log W
Log L*Log W
Log L2
1,404834
1,537819
1,276462
1,40824
1,25042
1,332438
0,939519
1,021189
1,071882
0,968483
1,350248
1,130334
0,954243
1,980458
1,992554
1,838219
1,970347
1,942008
1,968483
1,788168
1,816241
1,840733
1,730782
1,965202
1,919601
1,332438
2,782214021
3,064186848
2,346416624
2,774721217
2,428325714
2,622882388
1,680018612
1,85472618
1,973048834
1,676233122
2,653509702
2,169789859
1,27146942
1,973558
2,364888
1,629355
1,98314
1,56355
1,775392
0,882696
1,042828
1,148931
0,937959
1,82317
1,277654
0,910579
0,90309
1,09691
1,079181
1,161368
1,176091
1,357935
1,374748
1,371068
1,4133
1,447158
1,226337363
1,507975226
1,479630724
1,641361124
1,701989911
0,815572
1,203212
1,164632
1,348776
1,383191
21,06275
31,04944
36,85483689
25,22908
−∑ log L × ∑ log×logW
2
− ∑ log L
2
∑ log L
68
Universitas Sumatera Utara
69
Lampiran H. Contoh Perhitungan
Kepadatan (K) ikan Mystacoleucus marginatus Stasiun 1:
/
,
2
= 0,0849 ind/m2
,
�
= 17,66%
%
�
%
Kepadatan Relatif (KR) Mystcoleucus marginatus Stasiun 1:
,
Frekuensi Kehadiran (FK) Mystacoleucus marginatus Stasiun 1:
= 60%
H’ stasiun 1
= -∑ {
ln
= -∑{ − ,
+
ln
+ − ,
= 1,3458 atau 1,355
E stasiun 1
=
+
ln
+ − ,
+
ln
}
+ − ,
}
,
,
= 1,023
C stasiun 1
= ∑{
= 0,266
+
+
+
}
69
Universitas Sumatera Utara
Lampiran A. Peta Lokasi
Keterangan:
Stasiun 1
Stasiun 2
Stasiun 3
: Daerah Perkebunan
: Daerah Pariwisata
: Daerah Hilir Sungai
59
Universitas Sumatera Utara
60
Lampiran B. Bagan Kerja Metode Winkler untuk Mengukur DO
Sampel Air
1 ml MnSO4
1 ml KOHKI
Dikocok
Didiamkan
Sampel Endapan
Puith/Cokelat
1 ml H2SO4
Dikocok
Didiamkan
Larutan Sampel
Berwarna Cokelat
Diambil 100 ml
Dititrasi Na2S2O3 0,00125 N
Sampel Berwarna
Kuning Pucat
Ditambah 5 tetes Amilum
Sampel
Berwarna Biru
Dititrasi dengan Na2S2O3
0,00125 N
Sampel Bening
Dihitung volume Na2S2O3
yangterpakai
Hasil
(Suin, 2002)
60
Universitas Sumatera Utara
61
Lampiran C. Bagan Kerja Metode Winkler untuk Mengukur BOD5
Sampel Air
Sampel Air
Sampel Air
diinkubasi selama 5 hari
pada temperatur 20°C
dihitung nilai DO akhir
DO Akhir
dihitung nilai DO awal
DO Awal
Keterangan :
Penghitungan nilai DO awal dan DO akhir sama
dengan penghitungan Nilai DO
Nilai BOD = Nilai awal – Nilai DO akhir
(Suin, 2002)
61
Universitas Sumatera Utara
62
Lampiran D. Tabel Kelarutan O2 (Oksigen)
T˚C
0,0
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
14,6
13,77
13,40
13,05
12,70
12,37
12,06
11,76
11,47
11,19
10,92
10,67
10,43
10,20
9,98
9,76
9,56
9,37
9,18
9,01
8,84
8,68
8,53
8,38
8,25
8,11
7,99
7,86
7,75
7,64
7,53
14,12
13,74
13,37
13,01
12,67
12,34
12,03
11,73
11,44
11,16
10,90
10,65
10,40
10,17
9,95
9,74
9,54
9,35
9,18
8,99
8,83
8,67
8,52
8,37
8,23
8,10
7,97
7,85
7,74
7,62
7,52
14,08
13,70
13,33
12,98
12,64
12,31
12,00
11,70
11,41
11,14
10,87
10,62
10,38
10,15
9,93
9,72
9,52
9,33
9,15
8,98
8,81
8,65
8,50
8,36
8,22
8,09
7,96
7,84
7,72
7,61
7,51
14,04
13,66
13,30
12,94
12,60
12,28
11,97
11,67
11,38
11,11
10,85
10,60
10,36
10,13
9,91
9,70
9,50
9,31
9,13
8,96
8,79
8,64
8,49
8,34
8,21
8,07
7,95
7,83
7,71
7,60
7,50
14,00
13,63
13,26
12,91
12,57
12,25
11,94
11,64
11,36
11,08
10,82
10,57
10,34
10,11
9,89
9,68
9,48
9,30
9,12
8,94
8,78
8,62
8,47
8,33
8,19
8,06
7,94
7,82
7,70
7,59
7,48
13,97
13,59
13,22
12,87
12,54
12,22
11,91
11,61
11,33
11,06
10,80
10,55
10,31
10,09
9,87
9,66
9,46
9,28
9,10
8,93
8,76
8,61
8,46
8,32
8,18
8,05
7,92
7,81
7,69
7,58
7,47
13,93
13,55
13,19
12,84
12,51
12,18
11,88
11,58
11,30
11,03
10,77
10,53
10,29
10,06
9,85
9,64
9,45
9,26
9,08
8,91
8,75
8,59
8,44
8,30
8,17
8,04
7,91
7,79
7,68
7,57
7,46
13,89
13,51
13,15
12,81
12,47
12,15
11,85
11,55
11,27
11,00
10,75
10,50
10,27
10,04
9,83
9,62
9,43
9,24
9,06
8,89
58,73
8,58
8,43
8,29
8,15
8,02
7,90
7,78
7,67
7,56
7,45
13,85
13,48
13,12
12,77
12,44
12,12
11,82
11,52
11,25
10,98
10,72
10,48
10,24
10,02
9,81
9,60
9,41
9,22
9,04
8,88
8,71
8,56
8,41
8,27
8,14
8,01
7,89
7,77
7,66
7,55
7,44
13,81
13,44
13,08
12,74
12,41
12,09
11,79
11,50
11,22
10,95
10,70
10,45
10,22
10,00
9,78
9,58
9,39
9,20
9,03
8,86
8,70
8,55
8,40
8,26
8,13
8,00
7,88
7,76
7,65
7,54
7,43
(Barus, 2004)
62
Universitas Sumatera Utara
63
Lampiran E. Bagan Kerja Pengukuran Nitrat (NO3)
5 ml sampel air
1 ml NaCl (pipet volum)
5 ml H2SO4
4 tetes Brucine Sulfat
Sulfanic Acid
Larutan
Dipanaskan selama 25 menit
Larutan
Didinginkan
Diukur dengan
Spektrofotometer pada λ = 410 nm
Hasil
63
Universitas Sumatera Utara
64
Lampiran F. Bagan Kerja Pengukuran Posfat (PO43-)
5 ml sampel air
1 ml Amstrong Reagent
1 ml Ascorbic Acid
Larutan
Dibiarkan selama 20 menit
Diukur dengan
Spektrofotometer pada λ = 880 nm
Hasil
64
Universitas Sumatera Utara
65
Lampiran G. Panjang dan Berat Ikan
a. Ikan Gabus (Channa striata )
No
1
2
3
4
Panjang
(L)
Berat
(W)
11
13
22
24
9,5
10,8
20,9
23,4
Jenis
kelamin
-
Total
Log L
Log W
Log L*Log W
Log L2
1,041393
1,113943
1,342423
1,380211
0,977724
1,033424
1,320146
1,369216
1,018194211
1,151175523
1,772194316
1,889807119
1,084499
1,24087
1,802099
1,904983
4,87797
4,70051
5,831371168
6,03245
b. Ikan Hampala (Hampala macrolepidota )
No
Panjang
(L)
Berat
(W)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
12,5
11,7
20,5
14,7
11,7
21
10,8
9,8
17,5
11,7
10,1
17,5
23,6
15,5
20,5
11,8
10,8
9,8
8,9
7,1
18,5
16,1
15,5
13,4
10,8
11,7
15,2
15,9
11,5
10,5
16,1
15,1
12,3
10,5
17,2
12,7
19
20
21
22
10,2
12,8
12,9
22,9
13,1
12,5
25,1
22,8
Jenis
kelamin
Betina
Jantan
Betina
Jantan
Jantan
Betina
Betina
Betina
Betina
Jantan
Jantan
Jantan
Jantan
Jantan
Jantan
Total
Log L
Log W
Log L*Log W
Log L2
1,09691
1,068186
1,311754
1,167317
1,068186
1,322219
1,033424
0,991226
1,243038
1,068186
1,004321
1,243038
1,133572865
1,05881368
1,63055996
1,246911873
1,072801892
1,643568892
1,2032
1,1410
1,7206
1,3626
1,1410
1,7483
1,372912
1,190332
1,311754
1,071882
1,800922621
1,27589513
1,8849
1,4169
1,033424
0,991226
0,94939
0,851258
0,981122186
0,843789472
1,0679
0,9825
1,267172
1,206826
1,190332
1,127105
1,508354675
1,360219236
1,6057
1,4564
1,033424
1,068186
1,181844
1,201397
1,221345239
1,283315423
1,0679
1,1410
1,060698
1,021189
1,206826
1,178977
1,2800776
1,203958642
1,1250
1,0428
1,089905
1,021189
1,235528
1,103804
1,34660877
1,127192548
1,1878
1,0428
1,0086
1,10721
1,11059
1,359835
1,120140973
1,505623403
1,0172
1,2259
1,117271
1,09691
1,399674
1,357935
1,563815272
1,489532331
1,2482
1,2032
24,72105
25,42136
28,69814268
28,033
Log L
Log W
Log L*Log W
Log L2
1,130334
1,068186
1,451786
1,352183
1,641003233
1,444382248
1,277654
1,141021
1,198657
1,509203
1,809016299
1,436779
c. Ikan Cencen (Mystacoleucus marginatus)
No
1
2
3
Panjang
(L)
Berat (W)
13,5
11,7
28,3
22,5
15,8
32,3
Jenis
kelamin
Jantan
Betina
65
Universitas Sumatera Utara
66
No
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Panjang
(L)
Berat (W)
11,5
16,6
17,8
10,8
21,3
12,8
11,7
12
13
15,1
15,4
16
13,4
12,5
7,8
22
21
13
13,7
10
11
12
10,8
10
20,8
22,7
28,9
15,1
38,5
22,1
18,1
21
25,4
30,8
31,2
31,8
25,8
21,4
11
18,3
18,1
13,2
11,7
10,8
10,1
13,2
12,8
12,5
11,5
13,4
16
19,6
20
13,1
15,7
15,9
18,4
19,1
Jenis
kelamin
Jantan
Jantan
Betina
Jantan
Jantan
Jantan
Betina
Betina
Betina
Jantan
Jantan
Betina
Betina
Jantan
Jantan
Jantan
Betina
Betina
Betina
Betina
Total
Log L
Log W
Log L*Log W
Log L2
1,060698
1,220108
1,25042
1,033424
1,32838
1,10721
1,068186
1,079181
1,113943
1,178977
1,187521
1,20412
1,127105
1,09691
0,892095
1,342423
1,322219
1,113943
1,136721
1
1,041393
1,079181
1,033424
1
1,318063
1,356026
1,460898
1,178977
1,585461
1,344392
1,257679
1,322219
1,404834
1,488551
1,494155
1,502427
1,41162
1,330414
1,041393
1,262451
1,257679
1,120574
1,068186
1,033424
1,004321
1,120574
1,10721
1,09691
1,398066933
1,654498116
1,826735884
1,218382785
2,106093695
1,488524529
1,343434472
1,426914266
1,56490518
1,75496698
1,774339541
1,809102518
1,591043344
1,459344189
0,929020794
1,694742976
1,662926878
1,248255881
1,214228839
1,033423755
1,045892932
1,209302371
1,144217085
1,096910013
1,12508
1,488664
1,56355
1,067965
1,764592
1,225914
1,141021
1,164632
1,24087
1,389987
1,410205
1,449905
1,270365
1,203212
0,795833
1,802099
1,748264
1,24087
1,292134
1
1,084499
1,164632
1,067965
1
1,060698
1,127105
1,20412
1,292256
1,30103
1,117271
1,1959
1,201397
1,264818
1,281033
1,18508725
1,347904237
1,446626284
1,634468511
1,666662836
1,12508
1,270365
1,449905
1,669926
1,692679
36,39997
40,94203
46,87042485
41,76567
d. Ikan Lele merah (Glypthotorax platygonoides)
No
1
2
3
4
5
6
7
8
Panjang
(L)
Berat
(W)
18,1
11,3
23
16,5
10,5
8,5
7,4
7,8
10
8,9
15,4
12,8
12,5
12,8
14,8
13,5
Jenis
kelamin
-
Log L
Log W
Log L*Log W
Log L2
1,257679
1,053078
1,361728
1,217484
1,712615924
1,282106097
1,581755
1,108974
1,021189
0,929419
0,869232
0,892095
1
0,94939
1,187521
1,10721
1,09691
1,10721
1,170262
1,130334
1,212683453
1,029061901
0,953468977
0,987736038
1,170261715
1,073127584
1,042828
0,86382
0,755564
0,795833
1
0,901341
66
Universitas Sumatera Utara
67
No
9
10
11
12
13
14
15
Panjang
(L)
Berat
(W)
11,8
8,5
9
5,4
6,5
11
8,9
20
3,6
6,9
4,8
4,9
9,5
7,2
Jenis
kelamin
-
Total
Log L
Log W
Log L*Log W
Log L2
1,071882
0,929419
0,954243
0,732394
0,812913
1,041393
0,94939
1,30103
0,556303
0,838849
0,681241
0,690196
0,977724
0,857332
1,394550643
0,517038073
0,800465461
0,498936831
0,561069612
1,018194211
0,813942904
1,148931
0,86382
0,910579
0,536401
0,660828
1,084499
0,901341
14,46371
15,28133
15,02525942
14,15651
Log L
Log W
Log L*Log W
Log L2
0,740363
1,20412
1,198657
0,832509
0,146128
1,10721
1,093422
0,568202
0,10818775
1,33321365
1,31063765
0,473033
0,548137
1,449905
1,436779
0,693071
3,975649
2,914961
3,22507205
4,127892
Log L
Log W
Log L*Log W
Log L2
1,146128
1,079181
1,673021
1,546543
1,91749617
1,66899984
1,313609
1,164632
1,053078
1,041393
1,017033
1,033424
1
1,079181
1,485721
1,480007
1,426511
1,450249
1,238046
1,515874
1,56458121
1,5412684
1,45080951
1,49872188
1,2380461
1,63590262
1,108974
1,084499
1,034357
1,067965
1
1,164632
1,113943
1,146128
1,176091
1,322219
1,318063
1,201397
1,532754
1,685742
1,716838
1,833784
1,802089
1,753583
1,70740155
1,93207587
2,01915784
2,42466508
2,37526778
2,10674964
1,24087
1,313609
1,383191
1,748264
1,737291
1,443355
15,72726
22,14076
25,0811435
17,80525
e. Ikan Baung (Mystus nemurus)
No
1
2
3
4
Panjang
(L)
Berat
(W)
5,5
16
15,8
6,8
1,4
12,8
12,4
3,7
Jenis
kelamin
-
Total
f. Ikan Nila (Oreochromis niloticus)
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Panjang
(L)
Berat
(W)
14
12
47,1
35,2
11,3
11
10,4
10,8
10
12
30,6
30,2
26,7
28,2
17,3
32,8
13
14
15
21
20,8
15,9
34,1
48,5
52,1
68,2
63,4
56,7
Total
Jenis
kelamin
Betina
Jantan
Jantan
Jantan
Jantan
Jantan
Jantan
Betina
Betina
Betina
Betina
Betina
Betina
Betina
67
Universitas Sumatera Utara
68
g. Ikan Jurung (Tor tambroides)
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Panjang
(L)
Berat
(W)
25,4
34,5
18,9
25,6
17,8
21,5
8,7
10,5
11,8
9,3
22,4
13,5
9
95,6
98,3
68,9
93,4
87,5
93
61,4
65,5
69,3
53,8
92,3
83,1
21,5
8
12,5
12
14,5
15
22,8
23,7
23,5
25,9
28
Jenis
kelamin
Betina
Betina
Jantan
Betina
Jantan
Jantan
-
Total
log a =
log b =
∑ log W ×∑ log L
2
N.∑ log L
∑ log W – N log a
Log L
Log W
Log L*Log W
Log L2
1,404834
1,537819
1,276462
1,40824
1,25042
1,332438
0,939519
1,021189
1,071882
0,968483
1,350248
1,130334
0,954243
1,980458
1,992554
1,838219
1,970347
1,942008
1,968483
1,788168
1,816241
1,840733
1,730782
1,965202
1,919601
1,332438
2,782214021
3,064186848
2,346416624
2,774721217
2,428325714
2,622882388
1,680018612
1,85472618
1,973048834
1,676233122
2,653509702
2,169789859
1,27146942
1,973558
2,364888
1,629355
1,98314
1,56355
1,775392
0,882696
1,042828
1,148931
0,937959
1,82317
1,277654
0,910579
0,90309
1,09691
1,079181
1,161368
1,176091
1,357935
1,374748
1,371068
1,4133
1,447158
1,226337363
1,507975226
1,479630724
1,641361124
1,701989911
0,815572
1,203212
1,164632
1,348776
1,383191
21,06275
31,04944
36,85483689
25,22908
−∑ log L × ∑ log×logW
2
− ∑ log L
2
∑ log L
68
Universitas Sumatera Utara
69
Lampiran H. Contoh Perhitungan
Kepadatan (K) ikan Mystacoleucus marginatus Stasiun 1:
/
,
2
= 0,0849 ind/m2
,
�
= 17,66%
%
�
%
Kepadatan Relatif (KR) Mystcoleucus marginatus Stasiun 1:
,
Frekuensi Kehadiran (FK) Mystacoleucus marginatus Stasiun 1:
= 60%
H’ stasiun 1
= -∑ {
ln
= -∑{ − ,
+
ln
+ − ,
= 1,3458 atau 1,355
E stasiun 1
=
+
ln
+ − ,
+
ln
}
+ − ,
}
,
,
= 1,023
C stasiun 1
= ∑{
= 0,266
+
+
+
}
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Universitas Sumatera Utara