|
Portmann (1925)
|
Roscoff, France
|
5–9
|
n/a
|
n/a
|
50–>2,000
|
n/a
|
n/a
|
av. 30
|
av. 10
|
n/a
|
|
Hancock (1967)
|
Burnham on Crouch, UK
|
n/a
|
3–4
|
n/a
|
≤3,000
|
n/a
|
n/a
|
13–14
|
n/a
|
n/a
|
|
Fretter and Graham (1985)
|
n/a
|
n/a
|
3–9
|
6–12
|
500–3,000
|
200–300
|
n/a
|
av. 30
|
3–10
|
1–1.4
|
|
Martel et al. (1986a)
|
Gulf of St Lawrence, Canada
|
2–3
|
5–8
|
n/a
|
2,700
|
n/a
|
1.10
|
av. 30
|
av. 30
|
3
|
|
Kideys et al. (1993)
|
Douglas, Isle of Man
|
n/a
|
3–5
|
n/a
|
n/a
|
n/a
|
n/a
|
n/a
|
n/a
|
n/a
|
|
Valentinsson (2002)
|
Skagerrak, Sweden
|
4–8
|
3–4
|
7–9.5
|
700–2,300
|
245–285
|
0.20–1.20
|
n/a
|
2–16
|
1.9–2.8
|
|
Nasution (2003)
|
Irish Sea, Northern Ireland
|
8–11
|
2.5–3
|
n/a
|
av. 2,360a
|
340
|
0.47–1.65
|
n/a
|
n/a
|
Nearly 2b
|
|
Nasution et al. (2010)
|
Irish Sea, Northern Ireland
|
10
|
3
|
n/a
|
558–4,196
|
n/a
|
0.47–1.65
|
n/a
|
n/a
|
2.1–3.1
|
|
Present study
|
Southampton Water, UK
|
6
|
4.5–5
|
5–10.5
|
475–2,639
|
200–260
|
1.01
|
av. 9–11
|
av. 9
|
1.70–3.45
|
|
Author, personal observations
|
Breidafjordur, Iceland
|
Approx. 3
|
n/a
|
7–10
|
804–1,441
|
n/a
|
1.48
|
av. 17
|
n/a
|
n/a
|
