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Table 2 Range and ΔT° of air temperature (T° air) and water temperature from burrows of Neohelice granulata (T° burrow) in mudflat and salt marsh in three sites, Mar Chiquita, Bahía Blanca and San Antonio Bay, and four seasons (winter, spring, summer and autumn)

From: The influence of habitat, season and tidal regime in the activity of the intertidal crab Neohelice (=Chasmagnathus) granulata

Site

Season

Mudflat

Salt marsh

T° air

ΔT°

T° burrow

ΔTº

T° air

ΔT°

T° burrow

Δ T°

Mar Chiquita

Winter

14.7–0.7

15.4

14.9–2.6

12.3

13.6–0.4

13.2

11.9–1.4

10.5

Spring

26.1–11

15.1

24.6–14.2

10.4

28.2–12.1

16.1

21.3–16.4

4.9

Summer

31.7–16.3

15.4

27.3–17.1

10.2

32.1–16.2

15.9

 

5.9

Autumn

15.3–2.7

12.6

12.2–3

9.2

16.8–2.7

14.1

8.9–6.7

2.2

Mean, SD

 

14.6, 1.3

 

10.5, 1.3

 

14.8, 1.4

 

5.8, 3.4

Bahía Blanca

Winter

9.8–0.6

9.2

11–0.3

10.7

9.9–0.4

9.5

10.3–0.8

9.5

Spring

31.6–19.5

12.1

29.1–15.8

13.3

33.3–19.4

13.9

27.3–15.9

11.4

Summer

28.5–17.6

10.9

25–15.6

9.4

30.1–18.2

11.9

31–15.9

15.1

Autumn

15.4–1.9

13.5

13.7–4.5

9.2

15.2–3.5

11.7

14.1–5.7

8.4

Mean, SD

 

11.4, 1.8

 

10.6, 1.8

 

11.7, 1.7

 

11.1, 2.9

San Antonio

Winter

14.8–5.4

9.4

13.7–4.2

9.5

15.2–3.8

11.4

13.1–4.4

8.7

Spring

28.9–18.2

10.7

24.9–13 4

11.5

31.6–18.8

12.8

22.4–18.6

3.8

Summer

35.7–18.4

17.3

32.4–15.4

17

38.5–17.5

21

30.2–19.4

10.8

Autumn

23.2–6.1

17.1

21.1–6.6

14.5

24.8–5.1

19.7

19.1–10

9.1

Mean, SD

 

13.6, 4.1

 

13.1, 3.3

 

16.2, 4.8

 

8.1, 3

  1. Bold types indicate significant differences among mean Δ T° between air and burrows (t test, p < 0.05)