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Polar Biology

, Volume 21, Issue 4, pp 214–219 | Cite as

Biomass and metabolism of zooplankton in the Bransfield Strait (Antarctic Peninsula) during austral spring

  • S. Hernández-León
  • S. Torres
  • M. Gómez
  • I. Montero
  • C. Almeida
ORIGINAL PAPER

Abstract

Zooplankton biomass (as dry weight), respiration and ammonia excretion were studied in three different size classes (200–500, 500–1000 and >1000 μm) in the Bransfield Strait during December 1991. Average mesozooplankton biomass was 86.45 ± 56.74 mg · dry weight · m−2, which is in the lower range of the values cited in the literature for polar waters. Higher biomass was observed in the Weddell water. The small size fraction accounted for about 50% of total biomass while the largest one represented 35%. Rather high metabolic rates were found, irrespective of whether the organisms were incubated in the presence of food. No significant differences were observed in mass specific respiration and ammonia excretion rates between different temperatures of incubation (0.2–2.3°C) and between the size classes studied. Because of the very low biomass values observed, the metabolic requirements of mesozooplankton during December represented a small fraction of the primary production.

Keywords

Biomass Respiration Size Class Size Fraction Excretion Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • S. Hernández-León
    • 1
  • S. Torres
  • M. Gómez
  • I. Montero
  • C. Almeida
  1. 1.Facultad de Ciencias del Mar, Universidad de Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017 Las Palmas, Canary Islands e-mail: santiago.hernandez-leon@biologia.ulpgc.es, Fax: +34-28-454490IS

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