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Table 2 The total number of bryozoan colonies collected per river in each sampling trip according to different categories (and the numbers collected from trees 1, 2, and 3). Colony categories are: alive but not producing statoblasts (- stats); alive and producing statoblasts (+ stats); dead with no statoblasts (- stats); dead with mature statoblasts (+ stats). The last four columns provide data for the number (and percentage) of uninfected, covertly and overtly-infected colonies that were identified by dissection and the overtly-infected colonies’ respective sac number. See Methods for further details on sampling to determine infection status

From: Persistence, impacts and environmental drivers of covert infections in invertebrate hosts

River Sampling trip Sampling date Alive (- stats) Alive (+ stats) Dead (- stats) Dead (+ stats) Covertly-infected Uninfected Overtly-infected Sac number
Avon 1 20/10/2011 143 (48, 35, 60) 147 (50, 60, 37) 1 (0, 1, 0) 0 6 (19%), 8 (25%), 8 (26%) 25 (81%), 24 (75%), 22 (71%) 0 0
2 05/12/2011 101 (34, 21, 46) 53 (29, 17, 7) 6 (3, 2, 1) 3 (1, 1, 1) 25 (53%), 25 (68%), 29 (81%) 22 (47%), 12 (32%), 7 (19%) 0 0
3 19/01/2012 14 (3, 0, 11) 8 (0, 2, 6) 4 (1, 0, 3) 3 (2, 0, 1) 3 (60%), 2 (100%), 14 (78%) 2 (40%), 0, 4 (22%) 0 0
4 05/03/2012 0 0 0 0 0 0 0 0
5 18/04/2012 242 (94, 77, 71) 1 (1, 0, 0) 2 (0, 0, 2) 0 13 (41%), 8 (25%), 10 (31%) 19 (59%), 24 (75%), 22 (69%) 0 0
6 11/06/2012 214 (72, 74, 68) 75 (23, 24, 28) 1 (0, 0, 1) 3 (3, 0, 0) 11 (34%), 20 (59%), 16 (50%) 21 (66%), 14 (41%), 16 (50%) 0, 0, 1 (1%) 0, 0, 2
7 18/07/2012 227 (81, 81, 65) 51 (11, 11, 29) 4 (0, 1, 3) 1 (0, 0, 1) 14 (44%), 14 (44%), 12 (39%) 18 (56%), 18 (56%), 19 (61%) 0, 1 (1%), 1 (1%) 0, 1, 2
8 29/08/2012 221 (80, 72, 69) 54 (17, 9, 28) 7 (3, 3, 1) 2 (0, 2, 0) 20 (49%), 11 (31%), 42 (76%) 21 (51%), 24 (69%), 13 (24%) 0, 1 (1%), 2 (2%) 0, 5, 6, 11
Dun 1 25/10/2011 166 (73, 35, 58) 57 (22, 8, 27) 15 (3, 4, 8) 3 (0, 1, 2) 22 (59%), 14 (40%), 15 (52%) 15 (41%), 21 (60%), 14 (48%) 0, 0, 1 (1%) 0, 0, 14
2 08/12/2011 129 (56, 24, 49) 19 (8, 9, 2) 51 (30, 10, 11) 9 (3, 4, 2) 39 (89%), 32 (91%), 35 (85%) 5 (11%), 3 (9%), 6 (15%) 1 (1%), 2 (5%), 0 2, 2, 1, 0
3 23/01/2012 96 (37, 26, 33) 9 (2, 3, 4) 48 (32, 7, 9) 10 (5, 3, 2) 39 (89%), 32 (100%), 35 (90%) 5 (11%), 0, 4 (10%) 0 0
4 08/03/2012 120 (50, 35, 35) 6 (1, 4, 1) 37 (13, 10, 14) 0 23 (72%), 32 (100%), 24 (75%) 9 (28%), 0, 8 (25%) 0 0
5 23/04/2012 236 (92, 48, 96) 3 (3, 0, 0) 8 (5, 0, 3) 0 6 (19%), 20 (65%), 9 (28%) 26 (81%), 11 (35%), 23 (72%) 1 (1%), 2 (4%), 0 5, 3, 6, 0
6 06/06/2012 243 (99, 44, 100) 0 5 (0, 5, 0) 0 22 (69%), 28 (88%), 25 (78%) 10 (31%), 4 (13%), 7 (22%) 1 (1%), 0, 0 1, 0, 0
7 23/07/12 215 (88, 45, 82) 16 (5, 1, 10) 11 (6, 2, 3) 0 9 (28%), 15 (48%), 10 (32%) 23 (72%), 16 (52%), 21 (68%) 3 (3%), 1 (2%), 0 26, 4, 1, 25, 0
8 05/09/2012 189 (77, 42, 70) 33 (7, 7, 19) 16 (8, 1, 7) 3 (2, 0, 1) 23 (64%), 27 (68%), 33 (75%) 13 (36%), 13 (33%), 11 (25%) 3 (3%), 1 (2%), 1 (1%) 1, 4, 5, 11, 9
Itchen 1 15/10/2012 239 (83, 83, 73) 1 (1, 0, 0) 20 (8, 10, 2) 0 23 (72%), 26 (81%), 21 (66%) 9 (28%), 6 (19%), 11 (34%) 0, 0, 1 (1%) 0, 0, 2
2 03/12/2012 258 (79, 88, 91) 1 (0, 1, 0) 32 (19, 5, 8) 0 19 (59%), 15 (47%), 16 (50%) 13 (41%), 17 (53%), 16 (50%) 0, 1 (1%), 1 (1%) 0, 2, 1
3 14/01/2013 87 (84, 1, 2) 0 13 (13, 0, 0) 0 28 (33%), 0, 1 (50%) 56 (67%), 1 (100%), 1 (50%) 0 0
4 25/02/2013 26 (26, 0, 0) 0 20 (19, 1, 0) 1 (1, 0, 0) 12 (44%), 0, 0 15 (56%), 0, 0 0 0
5 03/04/2013 11 (0, 0, 11) 0 3 (0, 0, 3) 0 0, 0, 3 (27%) 0, 0, 8 (73%) 0 0
6 20/05/2013 191 (47, 97, 47) 0 6 (1, 2, 3) 0 1 (3%), 8 (25%), 25 (78%) 31 (97%), 24 (75%), 7 (22%) 0 0
7 01/07/2013 222 (97, 97, 28) 0 9 (2, 3, 4) 0 11 (34%), 14 (44%), 25 (89%) 21 (66%), 18 (56%), 3 (11%) 0 0
8 12/08/2013 296 (97, 100, 99) 4 (3, 0, 1) 0 0 14 (44%), 18 (56%), 13 (41%) 18 (56%), 14 (44%), 19 1 (1%), 0, 1 (1%) 1, 0, 12