THE USE OF PATH ANALYSIS IN THE DETERMINATION OF ENVIRONMENTAL FACTOR EFFECTS ON THE TOTAL PRODUCTION OF AQUACULTURE PONDS IN PASURUAN, EAST JAVA PROVINCE
Abstract: Environmental
factors in the form of soil and water quality are the important factors of
aquaculture pond productivity, including total production (tiger shrimps,
Penaeus monodon, and milkfish, Chanos chanos) in Pasuruan, East Java Province.
The objective of this study was to analyze the direct or indirect effects of
soil and water quality on the total production of ponds in Pasuruan using a
path analysis application. Data were collected in the pond areas around
Pasuruan Regency including Nguling, Lekok, Rejoso, Keraton, and Bangil
Sub-Districts as well as Pasuruan City. Soil quality was determined as a free
variable and exogen; water quality as mediate variable, suspended, and endogen;
as well as milkfish production as suspended variable and endogen. Environmental
characteristics were illustrated using descriptive statistics, while
environment factor effects on total production were analyzed using path
analysis. The results of path analysis show that from the 12 analyzed soil
quality variables, only two variables were affected in the total production of
pond (tiger shrimps and milkfish) namely: contents of soil organic carbon and
soil phosphate. While based on 11 water quality variables, two variables (water
salinity and water iron) were affected the total production of ponds in
Pasuruan Regency. The direct effects of soil organic carbon and phosphate on
the total production were 0.314 and -0.600, respectively. Water salinity and
water iron gave direct effects on total production amounting to -0.678 and
0.358 respectively. It is also found that two soil variables which were
affected in the total production, did not indicate the effect towards water
quality in ponds. Further implication of this research is put more attention
for these variables into pond’s management in order to gain more production.
Technical application could be appropriate for pond preparation and frequently
water changing during grow out.
Keywords: path analysis;
environment; aquaculture pond; Pasuruan Regency
Author: Andi Indra Jaya Asaad,
Erna Ratnawati, Akhmad Mustafa
Journal Code: jpperikanangg150061
