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Secchi Trophic Index

Identify the trophic status and productivity level of your pond water using light penetration.

Secchi Depth (m)

Trophic Index (TSI)

93.2

Trophic Status

Hypereutrophic

Chlorophyll-a

2079817.0 µg/L

Water Productivity Metrics

Enter your Secchi Depth in meters (m).
Observe the Trophic State Index (TSI).
Identify the Trophic Status (Oligotrophic to Eutrophic).
Check the Chlorophyll-a concentration estimate.

Managing Pond Plankton

The Secchi disk is a simple but powerful tool for measuring water clarity, which is directly related to phytoplankton (algae) density in many ponds. A Secchi depth of 30-50 cm is typically ideal for fish farming. Any lower (below 20 cm) may indicate high rischio of night-time oxygen crashes.

How the Secchi Trophic Index Works

The Secchi Trophic Index is part of the Everyday Calculations utility library, designed specifically to identify the trophic status and productivity level of your pond water using light penetration. Instead of requiring slow cloud processing or software installations, this tool performs its core algorithms directly in your browser.

Operational Workflow & Technical Standards

•Engineered with a focus on speed, high computational accuracy, and modern web standards.
•Privacy-first architecture ensuring zero server transmission of your personal inputs or files.
•Lightweight, ad-optimized responsive layout designed to function seamlessly across any device.