| dc.description.abstract | The composition and distribution of earthworm in PT. Moeis Estate and
Simodong Estate Sei Suka District Batu Bara has been investigated February 2009.
Sampling area was determinated by using Purposive Random Sampling method and
sampling was collected using square method of 30 cm x 30 cm x 20 cm in size with is
25 replication for location.
The results of research showed that on location I found 4 species, they are:
Pontoscolex corethrurus, Peryonix excavatus, Megascolex cempii dan Pheretima
posthuma. Location II it was 4 species, they are: Pontoscolex corethrurus, Drawida
sp, Peryonix excavatus, dan Pheretima posthuma. The highest population density
found ini location presented by Pontoscolex corethrurus with the number for 20,89
organism/m2
. While the highest existence frequency with the number 60,00%. There
are 3 species of earthworm that alive better in each location, they Pontoscolex
corethrurus, Peryonix excavatus dan Drawida sp. To assess the index morista (
distribution) >1 and < 1 in each location pertained by in groups and regular
distribution. The similarities index of earthworm found between location I and
location II with the number 75,00%. | en_US |
