Plant Composition and Integrity Index Calculated for 8 Ponds in Plymouth
Survey by A. Zinovjev and I. Kadis (2012—2017)

Round Pond: 98 species

[No canvas support]
90 / 8 + 3 = 14.3

Boot Pond: 172 species

[No canvas support]
135 / 37 + 9 = 12.6

Bloody Pond: 166 species

[No canvas support]
145 / 21 + 5 = 11.9

Long Pond: 106 species

[No canvas support]
85 / 21 + 6 = 10.0

Savery Pond: 112 species

[No canvas support]
97 / 15 + 2 = 8.5

Gallows Pond: 98 species

[No canvas support]
84 / 14 + 1 = 7.0

Halfway Pond: 190 species

[No canvas support]
152 / 38 + 2 = 6.0

Little Long Pond: 83 species

[No canvas support]
67 / 16 + 0 = 4.2
Integrity Index: Native/Introduced + Rare