Concentration and production of bacteria and bacterial destruction in the photic layer of the Sodruzhestvo Sea area, Southern Ocean

• Main Author: Samyshev, E Z
• Format: Dataset
• Language: English
• Published: PANGAEA 1986
• Subjects: 14C uptake; Archive of Ocean Data; ARCOD; Bacteria; biomass as carbon; production as carbon; Calculated; Destruction of orghanic matter; as carbon; Event label; Filtration; Latitude of event; Longitude of event; MULT; Multiple investigations; Ratio; Skif-19-1; Skif-19-10; Skif-19-11; Skif-19-12; Skif-19-13; Skif-19-14; Skif-19-15; Skif-19-16; Skif-19-17; Skif-19-18; Skif-19-19; Skif-19-2; Skif-19-20; Skif-19-21; Skif-19-22; Skif-19-23; Skif-19-3; Skif-19-4; Skif-19-5; Skif-19-6; Skif-19-7; Skif-19-8; Skif-19-9; Southern Ocean; Antarctic; Antarc*
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.756629; https://doi.org/10.1594/PANGAEA.756629

Bacterioplankton in the photic layer of the Sodruzhestvo Sea area and adjoining waters consists in summer primarily of cocci, with fractions smaller than 2 ?m predominating. The average abundance and biomass of microorganisms are 427 thousand cells/ml and 438 mg C/m**2, with ranges of 150-1770 thousand cells/ml and 221-1146 mg C/m**2. The average daily production and bacterial destruction increase from 49 and 104 mg C/m**2 at the beginning of the growth period to 85 and 180 mg C/m**2 in the middle of the period and remain at this level till the end. Despite low rate of increase (daily P/B coefficient averages 0.12), because of its high abundance bacterioplankton in Antarctic waters plays a major role in destruction of organic matter, accounting for 60-85% of energy consumed by heterotrophs.