5. VERTICAL DISTRIBUTION AND MIGRATION
151
MIGRATION OF EUPHAUSIIDS
Average
Total
Distance
night depth vertical range migrated
( m )
(m)
( m )
700-100
400-0
400-100
50
150-0
> 300
5 0 0-2 00
100-0
< 100-0
100-0
80-0
100-0
100-0
100-0
50
70-0
100-50
>goo-100
700-0
>goo-0
>400-0
>300-(?)
>1000-100
>400-0
> 400-0
400-0
100-0
> 900-0
>400-0
> 900-0
>goo-0
> 900-0
>750-0
100-0
> 400-0
50
> 900-0
0-lOOO(?) 1500-O(?)
200-0
>900-50
100-50
>900-0
250-0
750-0
200
>400-0
100-0
>750-0
100-0
>200-0
300-100
>600-100
500-300
>900-200
400-300
>900-100
300-0
> 900-0
300-0
> 900-0
(300-0)
500-200
>900-200
500-200
800-200
300
400
300
250
250
?
300-400( ?)
200
(100
100
50
400
(200
200
300
50
200
250
500( ?)
200
300
200
250
50
100
200
300
300
100
loo(?)
200
Lewis (1954)
Lewis (1954)
Lewis (1954)"
Moore (1949), Boden and Brinton (1957)
Boden and Brinton (1957)
Moore (1949)
Waterman et al. (1939)
Mauchline (1960), Hickling (1925)
Hickling (1925), Russell (1928)
Esterly (1914b)"
Wickstead (1961)
Lewis (1954)
Ruud (1936)
Lewis (1954)"
Moore (1949), Lewis (1964)*
Marr (1962)
Mackintosh (1934), Hardy and Gunther
(1935)
Esterly (1914b)*
Moore (1949), Lewis (1954)
Tattersall (1939)
Lewis (1954)*
Moore (1949), Lewis (1954)"
Mackintosh (1934), Baker (1959)
Gardiner (1934)
Moore (1949), Bary (1956)*
Hardy and Gunther (1935)
Lacroix (1961), Gardiner (1934)
Gardiner (1934), Lacroix (1961),
Mauchline (1966a)
Waterman et al. (1939)
Lewis (1954)*
Lewis (1954)
Lewis (1954)"
Lewis (1954)*
Moore (1949)
Lewis (1954), Holt and Tattersall
(1905c)*
Lewis (1954)"
Moore (1949)"
Lewis (1954)
Moore (1949)"
Nematoscelis atlantica, N . dificilis, Nematobrachion jlexipes, Stylocheiron afine, and S.
A.I.B.-7
6