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The depth distributions of eight groups of phytoplankton were determined along eight north-south transects between longitudes 80„aE and 150„aE, from 63„aS to the sea ice edge or beyond.
The distribution and abundance of phytoplankton communities off east Antarctica were surveyed using CHEMTAX analysis of HPLC pigment profiles, supplemented by microscopy. Eight north--south transects … were surveyed between 80°E and 150°E, from approximately 63°S to the sea-ice, during Jan.--Mar.
Concentrations of dimethylsulphoniopropionate (DMSP) were measured in seven pack ice cores from three sites in eastern Antarctica to determine their relation to algal pigments, nutrients (nitrate, silicate and phosphate) and bulk salinity. The algal groups haptophytes…
Seals that survived their first year were on average 2% and 4% heavier at birth and at weaning than the “non-survivors”. First year survival rates were also calculated for weaners in the top quartile of weaning masses, these weaners had higher survival rates than those in the light quartile (71.
Elephant seals were immobilized intravenously with a mixture of tiletamine and zolazepam at a rate of 0.5 mg/kg. This provided a satisfactory degree of anaesthesia with no side effects. Induction, duration and recovery times were short which proved advantageous to researchers and animals.
Around 145 different non-marine algae have been identified from the Windmill Islands region, Antarctica. About 24 of these occur in the snow. Nearly half of these, which includes all the dominant snow algae, complete their life cycles in the snow and do not grow elsewhere.
The dive duration of 16 underyearling (6-12 months old) southern elephant seals during their second trip to sea was investigated using geolocating time-depth recorders. Underyearling seals had a lesser diving ability, with respect to duration and depth, than adult southern elephant seals.
Bird observations were made as part of a preliminary biological survey of the southern half of the Mawson Escarpment in the southern Prince Charles Mountains, Mac.Robertson Land between 26 January and 4 February 1998. A new breeding colony of snow petrels (Pagodroma nivea) is described…
ABSTRACT … The first estimate of the flux of dimethylsulphide (DMS) from the Australian sector of the Southern Ocean from 63oE-162oE has been calculated from seven voyages, which span spring and summer seasons from 1991-1995. DMS flux from the Sub Antarctic Zone (SAZ), Antarctic Zone (AZ)…