164
Land-Ocean Systems in the Siberian Arctic: Dynamics and History
Table 2: Zooplankton species collected in the Laptev Sea in spring 1996
Taxa IStation
Hydrowa
Rotatoria:
Keratella quadrata
Kellicottia longispina
Polychaeta
Polychaeta larvae
Maxillopoda:
Calanus sp.juv.
Pseudocalanus major
P. minutus
1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
+
+
+
+
+
+
+
+
+ + + +
+ + +
+ + +
++++++
+ +
+
+
+
+ +
+ + + +
+
+ + + +
+ +
+
Pseudocalanus sp. juv. + + + + + + + + + + + + +
+ + + + + +
+ + +
Microcalanus pygmaeus
+
+
+ +
+
+ +
+ +
+
Drepanopus bungei
+ + + + + + + + + + + + + + + + + + +
+ + + +
Acartia longiremis
+ + + + + + + + + + + +
+ + + + + + + + + + +
Oithona similis
+ + +
+ +
+
+ + +
+ + +
+ + + +
Oncaea borealis
+
+
+
+ +
+ + + + + + + +
Cyclops sp. juv.
+
Microsetella norvegica
+
+
+
Danielssenia sibirica
+
Ectinosoma arcticum
+
+
Harpacticoida sp.
+ + + +
+
+
+ +
+
+
Bosmina sp. juv.
+
Chaetognatha:
Sagitta sp. juv.
Echinodermata:
Ophiuroidea larvae
Appendicularia
Mollusca
+
+ + +
+
+ + + + +
+ + + + +
+
+
+
+
+
reproducing at this time; however, in our opinion, reproduction peak falls assumingly on July.
Unfortunately, no data for this month is so far available. In August only occasional occurrence
of nauplii has been reported for this population while copepodits of 1-3 stages were