Days 10 – 12, January 20 -
22. the Southern Ocean en-route to the
Ross Sea.
Monday 20th : New
Zealand’s Scott Base 56 years old today
Noon position: Latitude 56o 48.38’South;
Longitude 161o 39.121’East ; Air temperature: 11oC,
Water temperature: 5oC
We were now on the Southern Ocean,
en-route to the Ross Sea and Antarctica. The sea in the furious fifties was a
lot less rough! Our days at sea were filled in with films and lectures,
catching up on what we had missed during our early rough voyage. The first was an excellent video about the
pest eradication program on Macquarie Island, removing al the cats, rats and finally
rabbits. I managed to get a complimentary copy of the DVD. Later Samuel
delivered a lecture entitled ‘Seabirds of the Southern Ocean’, about the
various species of albatrosses, petrels, prions and other sea birds that we expect to see during the expedition. In the
afternoon Katya gave us an introduction to ‘Cetaceans of the Southern Ocean’.
Then was the first of David’s lectures
on the exploration of Antarctica. This focused on Sir Douglas Mawson and his
first expedition to the establishment of ANARE (Australian National Antarctic
Research Expedition) including the founding of stations on Macquarie Island,
and on the Antarctic continent Mawson Station, later followed by Davis and
Casey Stations. Australia now claims 47% of the Antarctic continent (David is a
NZ-lander, and NZ has a much smaller protectorate passed over by the UK!).
From our forays to the Bridge or on the
Bow deck to get some very fresh air between lectures, some passengers sighted
several King and Royal Penguins at Latitude 57o 41’S 162o 53.64E,
a long way from home, although Katya said this is not unusual for these penguins.
Noon position: Latitude 60o22.943’South;
Longitude 166o46.905’ East; Air temperature: 2.8oC, Water
temperature: 2-3oC.
Temperature inside the ship was 22-23oC now that we had
turned on the heaters in our cabins.
During the night we had crossed the
Antarctic Convergence (a temperature and salinity boundary of the Southern
Ocean and usually an area of abundant nutrients and marine life), still evident
in the morning with a little fog indicating the change in water temperature. It
used to about 90nm south of Macquarie Island but has shifted south with the
warming seas. This is causing problems for the King and Royal penguins on
Macquarie Is as they have to swim further to feed, taking longer and using more
energy, resulting in lower chick survival. We expected to observe more oceanic
birds owing to the upwelling of nutrients, but they were scarce for some
reason. From the bridge during the day
we saw several albatrosses including Campbell’s, Grey-headed and Southern
Royals were seen along with a few Prions, Shearwaters, Mottled and Black
petrels. The best sightings of the day were three pods of 20-30 black and white
Southern Right Whale Dolphins: no dorsal fin, a streamlined body and short
beak. A pod of ten Pilot whales were also seen to starboard.
Before lunch Part One of ‘The Last
Place on Earth’, a film based on Roland Huntford’s book, entitled ‘Scott and
Amundsen’, was screened. In the early evening Katya gave a further lecture on
marine mammals, Pinnipeds: explaining
the differences between the three
families - True Seals or Phocids (Weddell, Crab eater and Leopard Seals); Eared
Seals or Otariids (Aus and NZ fur seal and sea lions) and the Walruses.
During the afternoon our fine new blue
Antarctic jackets were issued, as you will see in many photographs.
With the sea rising, we took the hint
from Rodney to make sure all was secured in the cabin before retiring and, as
usual, to have ‘one hand for the ship and one for your-self’ when moving about
the ship.
Wednesday 22nd - First icebergs and ice floes;
Noon position: Latitude 63o
49’South; Longitude 172o 05’ East; Air temperature: 5oC,
Water temperature: 2.5oC
We had a very comfortable night and
arose to a calm sea, with a patch of sunlight emerging from cloud to shimmer on
the Southern Ocean. At 5.20 am the Officer on Watch, picked up the first
iceberg on the radar. This was soon visible as two towers and a beautiful deep
blue band above the water-line, eight nautical miles to starboard. At 8am we
were over 1370m depth of water and at Lat. 63o09.036’S Long. 171o15.989’E.
Last year, the first iceberg was sighted on 17 January at 62034.35’S,
172o41.2’ E, about 30 nm further south. We saw further icebergs
throughout the day, but did not sail very close to any. We had to be satisfied
with looking at them through our binoculars and telephoto lenses. A number of
Shearwaters and a Light-mantled Sooty Albatross and several pods of Orcas were
sighted
This morning Part 2 of the ‘Last Place
on Earth’ was screened. Samuel then told us all about Sir James Clark Ross who
first navigated the Ross Sea in 1841, after first exploring the Arctic. After
Antarctica, he helped in the search for Tasmania’s Sir John Franklin, who
disappeared while searching for the NW Passage. Ross’s two 32m naval ships HMS Erebus and HMS Terror used by
Franklin have never been found, although remains of his men and some equipment
were.
The afternoon program included a lecture
and briefing by Rodney on our route south; the Antarctic Treaty System and its
governance; IAATO (International Association of Antarctic Tourism Operators)
obligations. This was followed by the excellent documentary ‘The Last Ocean’ on
the tooth fishing industry and the need for a marine reserve to be established
to protect them in the Ross Sea.
During the afternoon three large
Rorquals and more Orcas were seen and later a large male Sperm Whale
accompanied by two other whales, was blowing as it moved along the surface. In
the afternoon we sailed past three large tabular icebergs.
We passed a large
berg to port, with a cave which had the most beautiful deep Prussian blue
colour. It took us 20 min to steam past the
largest one at 11 knots (nautical miles per hour), so it must have been about
6.6 k long. These icebergs have broken off an ice shelf and all large ones are
numbered and tracked by satellites for years until they break up into small
pieces and melt. That evening the first beautiful, snowy white, black-eyed Snow
Petrels were sighted along with three Minke Whales. At 11pm we had a lovely
sunset together with a bright half- moon rising behind the end of an iceberg.