Abstract:
Sungai Pinang Village is one of the villages in Lingga Timur District, Lingga Regency,
Riau Islands, which is developing into a fishery production center. The development of
aquaculture business, especially shrimp farming has grown rapidly, but on the other
hand, there is a change in the quality and quality of the waters. Water quality is very
influential on the growth of vaname shrimps (Litopenaeus vannamei) that are kept in
ponds so that the impact on high and low productivity of vaname shrimps. Therefore,
this study examined several variables of water quality that affect the productivity of
vaname shrimp in ponds. This research was carried out in a fishpond area that is
currently operational in Sungai Pinang Village, East Lingga District, Lingga Regency.
The method used is the survey method and interviews with respondents in the
Sungai Pinang village through the submission of the questionnaire. This interview is
needed to get primary data on-farm productivity. While the water quality data
obtained by direct measurement at the pond location and pond water sources, by
taking water samples, which are then analyzed in the Aquatic Biology laboratory. As
independent variables are water quality, namely temperature, dissolved oxygen (DO),
salinity, pH, total suspended solids/total suspended solids (TSS), turbidity, nitrate,
nitrite, phosphate and total organic matter (BOT). While the dependent variable is
vaname shrimp productivity. The 'best' multiple regression model selections are based
on the backward method. The results showed vaname shrimp productivity in the
range of 133.3-3,000.0 kg/ha with an average of 690.38 kg/ha. Water quality
variables that have a positive effect on vaname shrimp productivity are nitrates and
phosphates. While water quality variables that negatively affect the productivity of
vaname shrimp are pH and TSS.
