Energy flow through the algal and bacterial communities in the surface layer of bottom sediments of the River Raba and Dobczyce Reservoir [Southern Poland]

• Autorzy: Bednarz T , Starzecka A.
• Języki publikacji: EN

Abstrakty

EN

The biomass, production, respiration of algae and heterotrophic bacteria were determined in the surface layer (0.5 cm) of bottom sediments in the river above and below the reservoir, and in the backwater and littoral zone of the reservoir during the vegetation periods (April-October) in 1993 and 1994. The amounts of energy flowing (assumed as the sum of biomass, production, and respiration) through algae and bacteria communities at particular stations were respectively 64-387 and 39-142 kJ m-2 d-1. From the pool of total energy bio- accumulated by heterotrophic bacteria and algae, 87-98% originated from algae, but from the pool of energy released 76-97% was due to heterotrophic bacteria.

PL

Oznaczono biomasę oraz produkcję pierwotną glonów i biomasę oraz produkcję heterotroficznych bakterii, a także respirację tych organizmów w powierzchniowej warstwie (0.5 cm) osadów dennych w rzece powyżej i poniżej zbiornika, i w cofce i litoralu zbiornika w sezonie wegetacyjnym (IV-X) w 1993 i 1994 roku. Ilość energii przepływającej przez zbiorowiska glonów i bakterii (suma biomasy, produkcji i respiracji) wynosiły odpowiednio 64-387 i 39-142 kJ m-2 d-1. Na glony przypadało 87-98% puli całkowitej energii bioakumulowanej przez heterotroficzne bakterie i glony, natomiast 76-97% energii uwolnionej pochodziło od heterotroficznych bakterii.

Słowa kluczowe

EN

Dobczyce Reservoir; biomass; production; dam reservoir; alga; Poland; sediment; heterotrophic bacteria; energy flow; Raba River; river; bacteria; hydrobiology; respiration

• Wydawca: -
• Czasopismo: Acta Hydrobiologica
• Rocznik: 1997
• Tom: 39
• Numer: 1-2
• Opis fizyczny: p.9-17,fig.,ref.

Twórcy

autor

Bednarz T

• Polish Academy of Sciences, Slawkowska 17, 31-016 Krakow, Poland

autor

Starzecka A.

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