Table 2 Effects of food density on the morphological indices of Brachionus calyciflorus lorica and egg collected from three lakes.

Lorica width (μm)

0.75 × 10⁶

156.7 ± 0.9

151.5 ± 1.1^a*

159.2 ± 0.7

1.50 × 10⁶

158.5 ± 0.7

153.2 ± 0.9^a*

160.6 ± 0.8^a

3.00 × 10⁶

159.3 ± 0.7^a

159.3 ± 0.8^b

158.2 ± 0.9^b

6.00 × 10⁶

155.1 ± 2.2^b

155.8 ± 0.7^c

158.0 ± 0.7^b

Lorica length (μm)

0.75 × 10⁶

245.5 ± 1.8^a*

241.6 ± 2.0^b*

255.8 ± 1.2^a

1.5 × 10⁶

249.6 ± 1.2^a*

239.8 ± 1.6^bc*

255.1 ± 1.4^a

3.00 × 10⁶

245.7 ± 1.1^a

247.9 ± 1.4^a

247.9 ± 1.4^b

6.00 × 10⁶

235.1 ± 3.5^b*

236.7 ± 1.0^c*

246.0 ± 1.2^b

Egg major diameter (μm)

0.75 × 10⁶

120.6 ± 0.8^a*

120.9 ± 0.9^a*

117.2 ± 0.6^a

1.50 × 10⁶

122.6 ± 0.7^a*

116.7 ± 0.9^c

116.3 ± 0.8^a

3.00 × 10⁶

116.5 ± 0.7^b*

117.6 ± 0.7^c*

113.7 ± 0.7^b

6.00 × 10⁶

112.8 ± 1.6^c

111.7 ± 0.6^b

111.4 ± 0.6^c

Egg short diameter (μm)

0.75 × 10⁶

87.1 ± 0.5^a*

86.6 ± 0.7^a*

83.0 ± 0.3^a

1.50 × 10⁶

87.1 ± 0.3^a*

84.8 ± 0.5^b*

82.6 ± 0.5^a

3.00 × 10⁶

83.8 ± 0.4^b*

82.7 ± 0.5^c*

81.2 ± 0.5^b

6.00 × 10⁶

80.6 ± 1.2^c

78.2 ± 0.3^d

78.9 ± 0.4^c