Komandorsky National Natural Reserve
The
Commander Islands, which are the last in the Aleutian Island chain,
were formed in by underwater eruptions and the subsequent raising of
the ocean bed in the region of a tectonic fault. Proof of their volcanic
origin is provided by the presence spherical and ellipsoidal lava structures,
which were long ago spewed out by underwater eruptions. Two such outlets
of lava above the surface of the ocean can be found on Medny Island
by the Gladkovskaya and Zhirovaya bays. Strata of a much later eruption
form the body of the islands and can be observed in the eroded, precipitous
cliffs.
In recent times a bronze bust has been placed on the same site. An iron
cross and headstone in Commander Bay were put up approximately on the
spot where Vitus Bering was buried, time and wind having obscured the
exact spot.
The
temperature of the ocean water is 8-10 degrees C. Summers here are always
cool because of the ocean while in winter there is no hard frost. Over
the ocean there is almost always clouds, a gray blanket that creeps
over the island now in one direction, now in another. Somewhere immediately
above the clouds is the sun but you hardly ever see it. The environs
are raw, and damp with grass covered by a heavy dew. From time to time
the clouds separate and the sun appears and with it a scrap of blue
sky, but not for long.
From Nikolskoye we made several trips to various parts of Bering Island which stretches from northwest to southeast and is 98 kilometers long and 15-20 kilometers wide. The northern part of the island is flatter. Here one can go along the coast almost everywhere, and even take a ride in all-purpose vehicle. The surface of the northern part consists of gently rolling tundra. The southern part of the island is mountainous, with sheer cliffs dropping into the ocean.
Toporkov island can be seen from Nikolskoye - it is just seven kilometers
off shore. Its maximum height is twenty meters, and its broad, flat
top is overgrown with various grain-bearing plants and thickly populated
with birds - puffins and fulmars. The island is almost entirely surrounded
by reefs which provide nesting grounds for seagulls, cormorants and
numerous guillemots. The sandy beach on the northern side is frequented
by snipe. Among the feathered population of the Commander Islands the
most numerous are the fulmars, looking something like pigeons. They
are among the first to appear on the shores of the Commander Islands,
arriving late in March to liven up the oppressive winter silence. It
is with them that spring begins here. In the month of June each pair
of fulmars guard the one big egg laid in their nest. They make their
nests directly on the ground among the hummocks or simply in the grass.
They feed on fish and small squid. Fulmars are excellent flyers: they
hover over the island using the air currents, or fly long distances
to feed.
The puffins, on the other hand, dig den-like nests up to two meters
long. This modest-size bird can stand up for itself - it is a good idea
not to approach it with your bare hands. Other birds which settle close
to the puffins are in for trouble for the harsh voices of the puffins
are in keeping with their quarrelsome nature. The biggest colonies of
these birds are to be found on Toporkov (Puffin) Island and Arii, Rock
- there are tens of thousands of them here.
There are about 5,000 sea lions on the Commander Islands. The main herd of this large animal of the family of eared seals keeps to Medny Island. The adult bull weighs over a ton, and the female up to 300 kilogram's. Sea lions choose the same kind of places for their rookeries as seals. Frequently sea lions occupy the territory of the fur seals, but usually they settle further away from the shore line. They feed on fish, squid and octopus.
Fur seals feed mainly on fish, squid and other cephalopods. Salmon is almost entirely absent from their diet. As with sea lions, there is a great difference between the adult bulls, which weigh up to 250 kilograms, and the females whose weight is only about 60 kilograms. Life in the fur seal rookeries is fascinating, and one can observe it for hours day after day. In all their movements the fur seals are extraordinarily agile and graceful.
The majestic poses and the sheer power and strength of the bulls and their aggressiveness serve to stress by contrast the grace of the diminutive females and their offspring. These magnificent animals live according to their own laws, and the apparent fussing about and lack of order in their behavior have a method of their own. During the most tense period, when harems are being formed, the bulls are extremely restless, and those keeping watch over their own groups of females are apt to fight. The milk of the cows is highly nourishing and contains up to 50 per cent fat. After feeding her young the female seal goes out to sea and may be away for a whole week. Meanwhile the black baby seals stay in the special areas allotted to the young, where they gather in hundreds away from the quarreling and fighting of the adults. Baby seals sleep packed close to one another or restlessly and aimlessly shift from one place to another, constantly bleating like sheep. When the mother returns from the sea she calls out for her pup before she reaches land and thousands answer her from all parts of the rookery. Nevertheless each female unerringly recognize her own offspring by its voice. As time goes on the character and the behavior of the adult bulls and cows change. They become easily scared. Even the most aggressive and bad-tempered of the bulls retreat before the approaching human beings. This is the time when the growing youngsters learn to swim and catch fish close to the shore and among half-submerged rocks. In late autumn the young animals accompany the adults on the long and dangerous route to the south. Water is the native element of the fur seals, who come ashore only for breeding. They move awkwardly on their flippers to the sea, straining towards it with their highly streamlined body, and the first movement in the water is like a sigh of relief - light, joyful, and abandoned. Towards the end of November the rookeries became deserted. It is still a mystery how the fur seals find their way across vast seas and oceans, and how they manage to get back again.
Sea otters are peaceful animals, and make loving and courageous parents. The life of the animal is entirely bound up with the sea. Unlike aquatic animals which are protected by a subcutaneous layer of fat the sea otter relies on its fur for insulation. If the fur gets soaked through the sea otter dies from cold. The sea otter feeds on sea urchin, fish, shellfish and octopus.
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