Universitas Islam Sultan Agung (UNISSULA) monitors the condition of aquatic ecosystems associated with the university through direct water-quality measurements and environmental observation.

In 2025, monitoring was carried out at the UNISSULA campus lake, an aquatic environment located within the university area. The monitoring uses water-quality measurement equipment to observe physicochemical parameters that can indicate changes in aquatic environmental conditions.

This activity supports the university’s broader commitment to maintaining aquatic ecosystem quality and identifying changes that may require environmental management action.

Direct Monitoring of the UNISSULA Campus Lake

The UNISSULA campus lake serves as a local aquatic ecosystem within the university environment.

Direct monitoring of the lake is conducted to observe water conditions and provide information that can support the maintenance of water quality and the ecological condition of the aquatic environment.

The monitoring process includes direct observation of the water body and measurement using a digital multi-parameter water-quality meter.

Photographic documentation from 2025 shows the campus lake as the monitoring location and the equipment used for water-quality measurement.

Water Quality Parameters

UNISSULA uses a multi-parameter water-quality monitoring device capable of measuring several physicochemical characteristics of water.

The monitored parameters include:

• pH;
• Water temperature;
• Electrical conductivity (EC);
• Salinity; and
• Related dissolved-solids and water-condition indicators.

These parameters are useful for identifying changes in water conditions that may influence aquatic organisms and ecosystem functions.

Rather than relying only on visual observation, the monitoring provides measurable information about the condition of the campus aquatic environment.

pH Monitoring

pH is one of the parameters monitored in the UNISSULA campus lake.

Photographic documentation of the monitoring equipment shows a recorded pH value of approximately 6.27, together with a temperature reading of approximately 23.8°C during a documented measurement.

The purpose of recording pH is to observe changes in water chemistry over time and identify conditions that may require further investigation or environmental management.

The recorded value is treated as monitoring data rather than, by itself, as a complete determination of overall ecosystem health.

Temperature Monitoring

Water temperature is another important parameter monitored because temperature changes can influence aquatic organisms, dissolved oxygen dynamics, biological processes, and other characteristics of aquatic environments.

Digital monitoring documentation also shows temperature data being recorded through the connected monitoring interface.

The monitoring system can display current temperature values and configurable high- and low-temperature thresholds, supporting continued observation of changing water conditions.

Electrical Conductivity and Salinity

The digital monitoring system also records electrical conductivity and salinity.

A documented monitoring interface displays values for:

• Temperature;
• Electrical conductivity;
• Salt concentration; and
• Specific gravity.

Electrical conductivity provides information related to the concentration of dissolved ions in water, while salinity measurements help identify changes in dissolved salt conditions.

Monitoring these parameters together with pH and temperature provides a broader picture of physicochemical conditions within the aquatic environment.

Digital Water Quality Monitoring

The monitoring system is supported by a digital interface that allows water-quality measurements to be viewed electronically.

The documented interface demonstrates that water monitoring is not limited to manual visual inspection. Water-condition data can be recorded and displayed through a connected monitoring system.

This approach supports more systematic observation of environmental conditions and provides data that can be compared across monitoring periods.

Supporting Aquatic Ecosystem Management

Water-quality monitoring is an important component of aquatic ecosystem management because changes in physicochemical conditions may indicate emerging environmental pressures.

UNISSULA uses monitoring information to support:

Measurement → Observation of change → Environmental evaluation → Management response

This approach enables the university to identify changes in water conditions before they develop into larger environmental problems.

Monitoring also complements the university’s institutional plan to minimise physical, chemical, and biological alterations of aquatic ecosystems. That plan addresses water quality, habitats, vegetation, biodiversity, and aquatic organisms.

Connection with Wastewater and Pollution Control

Aquatic ecosystem monitoring is supported by wider pollution-prevention measures within the university environment.

UNISSULA requires the prevention of direct discharge of waste, plastics, chemicals, hazardous waste, and wastewater into water channels or environments that may affect aquatic ecosystems.

Wastewater treatment and pollution-control practices therefore complement direct monitoring of the campus lake.

Together, prevention and monitoring provide two complementary approaches:

Prevent pollutants from entering aquatic environments → Monitor aquatic conditions to identify environmental change

Protecting the Campus Aquatic Environment

Monitoring the UNISSULA campus lake supports the university’s efforts to maintain a stable and environmentally responsible campus aquatic ecosystem.

Regular observation of pH, temperature, conductivity, salinity, and related indicators can help identify changes associated with:

• Pollution;
• Altered water chemistry;
• Changes in dissolved substances;
• Temperature fluctuations; and
• Other environmental pressures.

Monitoring information can then support decisions regarding water management, pollution prevention, and further environmental assessment when necessary.

Evidence of Implementation

1. UNISSULA conducted direct monitoring of the campus lake in 2025 as an aquatic ecosystem associated with the university.
2. The monitoring uses a digital multi-parameter water-quality meter capable of measuring pH, temperature, electrical conductivity, salinity, and related water-quality characteristics.
3. Photographic documentation shows direct water-quality measurement equipment used for the monitoring activity.
4. A documented measurement recorded a pH of approximately 6.27 and a water temperature of approximately 23.8°C.
5. A digital monitoring interface records additional parameters including temperature, electrical conductivity, salt concentration, and specific gravity.
6. The campus lake itself is documented as the aquatic ecosystem being monitored, providing clear physical evidence of the monitoring location.
7. Monitoring is supported by an institutional plan to protect the physical, chemical, and biological condition of aquatic ecosystems associated with university activities.
8. Pollution-prevention measures complement monitoring by restricting direct discharge of waste, chemicals, plastics, hazardous materials, and wastewater into aquatic environments.