Acartia clausi
Temora longicornis
Centropages hamatus
Pseudocalanus elongatus
	Nauplius I
	Nauplius II
	Nauplius III
	Nauplius IV
	Nauplius V
	Nauplius VI
	Copepodite I
	Copepodite II
	Copepodite III
	Copepodite IV male
	Copepodite IV female
	Copepodite V male
	Copepodite V female
	Adult male
	Adult female
Calanus finmarchicus
Stage characteristics

 

Pseudocalanus elongatus adult female

 

Description of adult female: the adult female Pseudocalanus elongatus is characterised by 4 pairs of long swimming feet. The forebody consists of 4 segments. The urosome has 3 segments plus the telson. The first urosome segment is ventrally swollen, showing the genital opening as a dark spot. Eggs are carried in a sac until  hatching. Large, orange coloured lipid sacs may occur, depending on nutritional conditions.

 

 

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