An Analysis of the Effect of Salinity on Dissolved Oxygen in a Pond and its Impact on Pisciculture

DOI: 10.22161/ijeab.113.20

Abstract:
This study examines the influence of salinity on dissolved oxygen (DO) in pond ecosystems and evaluates its consequences for pisciculture. Dissolved oxygen is one of the most important indicators of water quality because it directly affects fish metabolism, growth, reproduction, immunity, and survival. Salinity alters the physical and chemical properties of water and consequently affects oxygen solubility. Sample observations demonstrated a progressive decline in dissolved oxygen concentration from 8.5 mg/L to 5.9 mg/L as salinity increased from 0 to 12 ppt. The results suggest a strong negative relationship between salinity and dissolved oxygen. Such reductions can adversely affect pond productivity and fish yield. Effective monitoring and management of salinity and oxygen levels are therefore essential for sustainable aquaculture.

Keywords:
Salinity, Dissolved Oxygen, Pond Ecosystem, Pisciculture.

Article Info:
Received: 13 May 2026; Received in revised form: 12 Jun 2026; Accepted: 16 Jun 2026; Available online: 24 Jun 2026

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