Analisis Isi Lambung Ikan Haspora (Osteochillus waandersii) Di Sungai Batang Toru Kabupaten Tapanuli Selatan

Lampiran 2. Bagan Kerja Metode Winkler untuk Mengukur BOD

5

(Michael, 1984; Suin, 2002)

Keterangan :



Penghitungan nilai DO awal dan DO akhir sama

dengan penghitungan Nilai DO



Nilai BOD = Nilai awal

–

Nilai DO akhir

dihitung nilai DO akhir

diinkubasi selama 5 hari

pada temperatur 20°C

dihitung nilai DO awal

Sampel Air

Sampel Air

Sampel Air

Lampiran 3. Peta Lokasi Penelitian

Lampiran 4. Data Panjang dan Berat Ikan Haspora (Osteochillus

12. _{10,5 21,4} 1,021189 1,330414 1,358604309 1,042828 13. _{14,5 90,4} 1,161368 1,956168 2,271831422 1,348776 14. _{10,5 28,7} 1,021189 1,457882 1,488773392 1,042828 15. _{12 33,4} 1,079181 1,523746 1,644398611 1,164632 16. _{10 22,1} 1 1,344392 1,344392274 1 17. _{11 30,7} 1,041393 1,487138 1,548695026 1,084499 18. _{9,8 21} 0,991226 1,322219 1,310618243 0,982529 19. _{12,4 45,6} 1,093422 1,658965 1,813948134 1,195571 20. _{11,1 29,2} 1,045323 1,465383 1,531798367 1,0927 21. _{10,3 25,4} 1,012837 1,404834 1,422867883 1,025839 22. _{8,3 12,6} 0,919078 1,100371 1,011326462 0,844705

b. Stasiun 2

NO L W log L Log W Log L*og W log L^2

1. 13 43,5 1,113943 1,63848926 1,825184216 1,240869792 2. 12,2 40,3 1,08636 1,60530505 1,743938918 1,180177682 3. 15 168,3 1,176091 2,22608412 2,618078071 1,38319065 4. 14,2 60,5 1,152288 1,78175537 2,053095951 1,327768429 5. 11,5 31,1 1,060698 1,49276039 1,583367721 1,125079909 6. 11,5 32,7 1,060698 1,51454775 1,60647753 1,125079909 7. 10 27,4 1 1,43775056 1,437750563 1 8. 11,6 33,5 1,064458 1,52504481 1,623346129 1,133070811 9. 10,5 23,7 1,021189 1,37474835 1,4038783 1,042827585 10. 11 26,1 1,041393 1,41664051 1,475279062 1,084498725 11. 8,9 14,6 0,94939 1,16435286 1,105424965 0,901341385 12. 11,5 36,3 1,060698 1,55990663 1,654589588 1,125079909 13. 13 53,1 1,113943 1,72509452 1,921657574 1,240869792

Total 13,90115 20,4624802 22,05206859 14,90985457

NO L W log L Log W Log L*og log L^2

22. 13,4 54,8 1,127105 1,738781 1,9597879 1,270365 23. 11,5 77,6 1,060698 1,889862 2,0045722 1,12508 24. 13,3 54,8 1,123852 1,738781 1,9541314 1,263043 25. 13,4 67,3 1,127105 1,828015 2,0603646 1,270365 26. 14 66,6 1,146128 1,823474 2,0899349 1,313609 27. 12,5 48,5 1,09691 1,685742 1,849107 1,203212 28. 11,2 28,8 1,049218 1,459392 1,5312209 1,100858 29. 11,1 29,4 1,045323 1,468347 1,5348972 1,0927 30. 11,2 23,5 1,049218 1,371068 1,4385491 1,100858

Lampiran 5. Perhitungan Analisis Isi Lambung

a. Perhitungan Panjang-Berat Ikan

log a

=

∑log W ×∑(log L)2 −∑log L × ∑(log ×logW )

pi = volume satu jenis macam makanan di perairan total jenis macam organisme

ri = total vol satu jenis macam makanan di lambung total vol seluruh jenis makanan x 100

ri = 56 3649× 100

ri = 0,0926

���ℎ � ℎ� =ri − pi

ri + pi

���ℎ � ℎ� = 0,0926 –0,03458 0,0926 + 0,03458

Lampiran 6. Foto Jenis Makanan Ikan

Melosira

sp

.

Surirella

sp.

Cosmarium

sp.

Pediastrum

sp.