International Journal of Zoology / 2014 / Article / Tab 1

Research Article

Life Cycle and Secondary Production of Four Species from Functional Feeding Groups in a Tropical Stream of South India

Table 1

The physicochemical parameters (mean ± SE) of a Thadaganachiamman stream in the Sirumalai hills of Southern India.

ParameterRifflePool

Air temperature (°C)28.5 ± 1.228.5 ± 1.2
Water temperature (°C)24.0 ± 1.325 ± 1.1
Dissolved oxygen (mgL−1)13.0 ± 0.611.5 ± 0.8
pH6.5 ± 0.016.5 ± 0.01
Conductivity (mhos/cm)0.2 ± 0.0020.2 ± 0.002
Stream width (m)1.0 ± 0.3
Stream depth (cm)14.0 ± 1.560.0 ± 4.3
Current velocity (cm/sec)0.4 ± 0.060.6 ± 0.04
Bedrock (%)30.0 ± 2.3
Boulders (%)25.0 ± 2.8
Pebbles (%)27.0 ± 1.9
Gravels (%)10.0 ± 2.1
Sand (%)4.0 ± 0.520.0 ± 1.4
Silt (%)3.0 ± 0.25.4 ± 0.4
Leaf litter (%)30.0 ± 3.150.0 ± 8.2
Woody debris/twigs (%)10.0 ± 1.520 ± 4.4
Canopy cover (%)60.0 ± 5.260.0 ± 5.2
Riparian cover (%)80.0 ± 5.280.0 ± 5.2

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