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Table 2 Infestation areas for epiphytic organisms in kelp

From: A survey of epiphytic organisms in cultured kelp Saccharina japonica in Korea

Place

Farm

Date

Water temperature (°C)

Mean thalli length (cm)

Mean infection area of epiphytic organisms % (epiphytic area/total area)

Hydroid

Bryozoan

Polychaete

Algae

Caprellida

Oyster

Wando

WDA

Apr 2014

11.5

340 (200–380)

0

0

0

0

0

0

May 2014

15.5

260 (260–270)

0

0

0

0

0

0

Jun 2014

17.4

NT

10 (5–20)

0

0

0

2 (1–5)

0

Jul 2014

21.7

190 (100–240)

85 (70–100)

4 (0.8–7.9)

0

30 (20–50)

0

0

Aug 2014

23

200 (100–240)

81 (60–95)

0.3 (0.2–0.6)

0

20 (10–35)

8 (3–17)

0

Sep 2014

22.1

120 (90–160)

NT

17 (0.2–48.7)

0

0

0

2.35 (0.4–4.3)

Jan 2015

9

41 (20–71)

0

0

0

0

0

0

Jan 2015

8.3

82 (39–122)

0

0

0

0

0

0

Apr 2015

11

236 (200–280)

0

0

0

0

0

0

WDB

May 2014

15.4

220 (100–330)

0

0

0

0

0

0

Jun 2014

21

260 (180–320)

10 (5–25)

0

0

5 (3–6)

0

0

Jul 2014

21.5

160 (130–200)

41.8 (10–80)

0

3 (1–5)

0

2 (1–5)

0

Sep 2014

21.6

130 (60–230)

55 (20–90)

0.13 (0.06–0.5)

0

0

0

0

Feb 2015

9

57 (30–100)

0

0

0

0

0

0

Mar 2015

11

97 (50–180)

0

0

0

0

0

0

Apr 2015

12.5

127 (90–190)

0

0

0

0

0

0

Busan

BS

Apr 2014

11

170 (50–270)

0

0.04 (0.04)

0

0

0

0

May 2014

14.5

230 (130–280)

14.4 (5–30)

7.3 (1.8–14.1)

0

0

0

0

Jun 2014

21

220 (180–300)

34 (10–60)

2.8 (0.03–11.6)

0

34.1 (5–70)

0

0

Jul 2014

20.4

160 (120–180)

37 (20–60)

37.9 (1.1–86)

0

0

3 (1–5)

0

Feb 2015

11.5

76 (26–175)

0

0

0

0

0

0

Feb 2015

12

143 (80–219)

0

0

0

0

0

0

Mar 2015

12.5

182 (110–260)

0

0

0

0

0

0

Apr 2015

13

203 (120–270)

0

0

0

0

0

0

Pohang

PH

Jul 2014

20.5

140 (50–220)

3.3 (3–5)

0.5 (0.5)

9.5 (3–20)

0

0

0

Aug 2014

23.4

110 (80–150)

5.3 (1–10)

1.2 (0.2–3.6)

50 (40–60)

0

0

0

Sep 2014

23.1

70 (30–110)

3 (2–4)

0

90 (80–95)

0

0

0

  1. NT not tested
  2. aMean number of caprellid