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A contribution to the knowledge of Arctic zooplankton diurnal variability [Kongsfjorden, Svalbard]

100%

Walkusz W., Kwasniewski S., Dmoch K., Beszczynska-Moller A.

Polish Polar Research

2007

tom 28

nr 1

Zooplankton was investigated at fixed site in 24 hours in Kongsfjorden, a glacial fjord situated on the west coast of Spitsbergen (Svalbard) (79°N, 12°E), in order to unveil the level of diurnal variability in community composition and abundance. Parallel to zooplankton study water temperature and salinity were measured while information on local tides and winds was obtained from external sources. Observed changes did not exceed the range of variability regarded intrinsic, resulting from the nature of plankton. Because of this low variability we are of the opinion that the data presented can be regarded a valid measure of the natural heterogeneity of zooplankton communities in hydrologically dynamic Arctic coastal waters in summer. The observed changes in zooplankton were primarily induced by the complex dynamics of the fjord's water masses. In spite of importance of tidal forcing, the variability in zooplankton did not demonstrate similar temporal fluctuations due to modification of the water movement by other irregular forces (local wind). Also, we have not found any indication of diel vertical migration in coastal water in the Arctic under the condition of midnight sun.

Characteristics of the Arctic and Antarctic mesozooplankton in the neritic zone during summer

64%

Walkusz W., Kwasniewski S., Dmoch K., Hop H., Zmijewska M. I., Bielecka l., Falk-Petersen S., Sicinski J.

Polish Polar Research

2004

tom 25

nr 3-4

275-291

Ograniczanie wyników

2 Polish Polar Research

2 Dmoch K.

2 Kwasniewski S.

2 Walkusz W.

1 Beszczynska-Moller A.

1 Bielecka l.

1 Falk-Petersen S.

1 Hop H.

1 Sicinski J.

1 Zmijewska M. I.

1 2007

1 2004

Wyniki wyszukiwania

A contribution to the knowledge of Arctic zooplankton diurnal variability [Kongsfjorden, Svalbard]

Characteristics of the Arctic and Antarctic mesozooplankton in the neritic zone during summer