BUSCADOR RECOLECTA

BIOANTART Cruise (29HE19930119) carried out on the Research Vessel Hespérides in 1993, Dynamic oceanography and productivity of the Bransfield Strait during the austral summer. (BIOANTAR 93). 1) Characterize the different water masses of the Bransfield Strait 2) Study the distribution and variability of the water masses that occupy the Strait from their hydrographic characteristics 3) Analyze the generation and propagation of short surface waves and half period 4) Determine the three-dimensional structure of circulation due to the main regional hydrodynamic agents. 5) Study of the influence of water masses on the distribution of planktonic communities. 6) Study of the importance of the essential nutrients on the growth and metabolism of phytoplankton. 7) Study of the contribution of the different fractions of plankton to abundance and primary productivity. 8) Study of the variability in the importance of microheterotrophic processes during the succession in the trophic structure of ecosystems. 9) Determine the respiratory metabolism of Antarctic microplankton and its relationships with environmental conditions. 10) Study of metabolism (respiration, growth and excretion) of zooplankton and its contribution to the decline of phytoplankton bloom. 11) Preparation of a balance of total production, net community production, exported production and respiratory metabolism of plankton 12) Study of the importance of the Bransfield Strait as spawning area and fish breeding 13) Evaluate the net metabolism of the upper layers of the Antarctic ocean during the austral summer 14) Determine the balance between autotrophic and heterotrophic organisms 15) Study of the role of light as a factor limiting the growth of phytoplankton populations