STATUS TROFIK DAN ESTIMASI POTENSI PRODUKSI IKAN PADA PERAIRAN LITORAL DANAU SINGKARAK SUMATERA BARAT

Abstract

State of tropic represent picture about condition of the freshwater tropic level, while potency fish production at one particular territorial aquatic ecosystem represent ability of the freshwater to fish production. Research about state of tropic estimation and fish production at freshwater of littoral zone of Singkarak Lake have been in November 2013 with a purpose to research to know state of tropic at lake littoral zone and estimation fish production. Result of research show November 2013 (the rains) assess phosphorus rate is 43,12 µg/L, brightness of littoral zone 4,3 m, rate of chlorophyll-a 99,40 µg/L so that obtained mean rage assess state index of trophic equal to 59,33 µg/L with the value hence littoral zone pertained eutrophyc lightly. Estimation value fish production in November 2013 mean equal to 23,86 kg/ha/year with value of DHL mean range from 16,02 - 19,73 ms/cm^-1.

Keywords :Singkarak Lake, area of littoral, water quality, state of trophic, estimationfish production.