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Table 2 Mann-Whitney U test results of the density of mature fish in nature reserves, germplasm resource reverses and non-reserves, in the low water period from 2014 to 2016

From: Are river protected areas sufficient for fish conservation? Implications from large-scale hydroacoustic surveys in the middle reach of the Yangtze River

Area

2014 low water (m−3)

2015 low water (m−3)

2016 low water (m−3)

Nature reserves

1.86 × 10−6 ± 3.86 × 10−7 a

3.42 × 10−6 ± 1.79 × 10−6 ab

9.52 × 10−6 ± 5.73 × 10−6 b

Germplasm resource reserves

8.08 × 10−7 ± 5.82 × 10−7 a

1.38 × 10−6 ± 5.252 × 10−7 ab

1.13 × 10−5 ± 6.01 × 10−6 b

Non-reserves

1.92 × 10−6 ± 7.60 × 10−7 a

2.13 × 10−6 ± 21.06 × 10−6 a

5.28 × 10−6 ± 2.23 × 10−6 a

Total

1.46 × 10−6±3.95 × 10−7 a

2.09 × 10−6 ± 5.79 × 10−7 a

8.52 × 10−6 ± 2.71 × 10−6 b

  1. With respect to the different years, different letters indicate a significant difference among areas in the middle reach of the Yangtze River (p < 0.05)
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BMC Ecology

ISSN: 1472-6785

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