Primary producers and production in Hornsund and Kongsfjorden - Comparison of two fjord systems
| Autor: | Jan M. Węsławski, A. M. Kubiszyn, Józef Wiktor, Agnieszka Tatarek, Jozef M Wiktor, Zofia Smola |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Spitsbergen geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Ecology Primary producers Primary production 010604 marine biology & hydrobiology lcsh:QE1-996.5 Fjord Fjords 01 natural sciences Fishery lcsh:Geology Arctic Production (economics) Environmental science Environmental conditions Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Polish Polar Research, Vol 38, Iss 3, Pp 351-373 (2017) |
| Popis: | Hornsund and Kongsfjorden are two similar-sized Arctic fjords on the West coast of Spitsbergen. They are influenced by cold coastal Arctic water (Hornsund) and warmer Atlantic water (Kongsfjorden). Environmental conditions affect the timing, quantity, spatial distribution (horizontal and vertical) of spring and summer blooms of protists as well as the taxonomic composition of those assemblages. Here, we compile published data and unpublished own measurement from the past two decades to compare the environmental factors and primary production in two fjord systems. Kongsfjorden is characterized by a deeper euphotic zone, higher biomass and greater proportion of autotrophic species. Hornsund seems to obtain more nutrients due to the extensive seabird colonies and exhibits higher turbidity compared to Kongsfjorden. The annual primary production in the analysed fjords ranges from 48 g C m−2y−1in Kongsfjorden to 216 g C m−2y−1in Hornsund, with a dominant component of microplankton (90%) followed by macrophytes and microphytobenthos. |
| Databáze: | OpenAIRE |
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