Characteristics of
nauplii.
(A) Acartia
clausi
(T) Temora
longicornis
(C) Centropages
hamatus
(P) Pseudocalanus
elongatus
(Cf) Calanus
finmarchicus
|
Stage
|
Number of spines on posterior end of body
|
Number of pairs of appendages
|
Number of dorsal setae on distal segment of antennule (excl. aesthete)
|
|
|
caudal
|
ventral
|
|
|
|
|
|
|
|
|
A
|
T
|
C
|
P
|
Cf
|
T
|
C
|
All species
|
A
|
T
|
C
|
P
|
Cf
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
I
|
2
|
2
|
2
|
0
|
1
|
0
|
0
|
3
|
|
|
|
|
|
|
II
|
0
|
2
|
1
|
2
|
1
|
0
|
0
|
3
|
|
|
|
|
|
|
III
|
2
|
2
|
3
|
4
|
2
|
2
|
2
|
3
|
3
|
3
|
3
|
3
|
3
|
|
IV
|
4
|
2
|
3
|
6
|
4
|
4
|
2
|
4
|
4
|
5
|
5
|
5
|
5
|
|
V
|
4
|
2
|
3
|
6
|
5
|
4
|
2
|
5
|
5
|
7
|
7
|
7
|
7
|
|
VI
|
4
|
2
|
3
|
6
|
6
|
4
|
2
|
6
|
|
|
|
|
|
Characteristics of
copepodites.
(A) Acartia clausi
(T) Temora longicornis
(C) Centropages hamatus
(P) Pseudocalanus elongatus
|
Stage
|
|
no. of cephalothorax segments
|
no. of urosome segments
(incl. Telson)
|
no. of pairs of swimming legs
|
|
|
|
A
|
T
|
C
|
P
|
A
|
T
|
C
|
P
|
A
|
T
|
C
|
P
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
I
|
|
4
|
4
|
4
|
4
|
2
|
2
|
2
|
2
|
3
|
3
|
3
|
3
|
|
II
|
|
5
|
5
|
5
|
5
|
2
|
2
|
2
|
2
|
4
|
4
|
4
|
4
|
|
III
|
|
6
|
6
|
6
|
6
|
2
|
2
|
2
|
2
|
4
|
5
|
5
|
4
|
|
IV male
|
|
5
|
6
|
6
|
5
|
3
|
3
|
3
|
3
|
5
|
5
|
5
|
5
|
|
V male
|
|
5
|
5
|
6
|
5
|
4
|
4
|
4
|
4
|
5
|
5
|
5
|
5
|
|
VI male
|
|
5
|
5
|
6
|
4
|
5
|
5
|
4
|
5
|
5
|
5
|
5
|
5
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IV female
|
|
5
|
6
|
6
|
5
|
2
|
3
|
3
|
3
|
5
|
5
|
5
|
4
|
|
V female
|
|
5
|
5
|
6
|
5
|
3
|
3
|
3
|
4
|
5
|
5
|
5
|
4
|
|
VI female
|
|
5
|
5
|
6
|
4
|
3
|
3
|
3
|
4
|
5
|
5
|
5
|
4
|
