data ABW SGR and water quality
Description
This study examines how pond type (HDPE vs. concrete) and water quality (pH, temperature, dissolved oxygen/DO) jointly shape two key performance indicators in Litopenaeus vannamei culture: Average Body Weight (ABW; g) and Specific Growth Rate (SGR; %·day⁻¹). Because ABW and SGR are observed simultaneously and can share unobserved shocks, we model them together using Seemingly Unrelated Regression (SUR) and compare results with separate OLS.
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Steps to reproduce
Water-quality parameters (pH, temperature, DO) were measured using standard aquaculture instruments at consistent operational depth and times. ABW was computed from representative subsamples; SGR from temporal changes in body weight between sampling occasions using the conventional SGR formula. The same field protocol was applied to all ponds.
Institutions
- Universitas Brawijaya