INSINAS2019-01

Column II shows the cumulative egestion of fecal pellets for three juvenile origins (Kayangan, Sekotong, and field pond, respectively). The codes S, K, and T are used for juveniles from Sekotong, Kayangan, and Labuhan Treng pond, respectively. The codes X, Y, Z, and C are used for rice bran, cow manure, seagrass extract, and the control, respectively.

Organic carbon assimilation rate and efficiency by H. scabra juveniles. The codes S, K, and T are used for juveniles from Sekotong, Kayangan, and Labuhan Treng pond, respectively. The codes X, Y, Z, and C are used for rice bran, cow manure, seagrass extract, and the control, respectively.

Assimilation rate and efficiency The assimilation rate is calculated using the following formula: Assimilation rate (mg C/d) = [((s*a)+(d*a)-(f*a))]/t where a = dry weight of the ingested mixed sediment ≈ dry weight of excreted fecal pellets (in grams); d = organic diet material (in mg C g-1); s = organic material from sediment substrate (in mg C g-1); f = organic material of fecal pellets (in mg C g-1); and t = time (in days).

Assimilation efficiency is calculated using the following formula: Assimilation efficiency (in %) = [((s*a)+(d*a)-(f*a))/((s*a)+(d*a))]

• 100% Where a = dry weight of ingested mixed sediment ≈ dry weight of excreted fecal pellets (in grams); d = organic diet material consumed per day (in mg C g-1.d-1); s = organic material from sediment substrate ingested per day (in mgC g-1.d-1); f = organic material of fecal pellets excreted per day (in mg C g-1. d-1).