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The seal Monachus Monachus or Mediterranean monk seal is
a marine mammal that belongs to the seal family. It is represented
on ancient Greek coins and passages in Homer describe it basking
in the sun on sandy beaches. Today, its habitat is restricted
to small uninhabited islands, inaccessible rocky shores and
caves.
It is one of the largest seal species in the world, with
a length of 2-3 meters and an average weight of 250 kg. Its
skin is covered by glossy fur that is most commonly grey or
brown on the back and a lighter color underneath it. Newborn
pups are about a meter long and weight 15-20 Kg. They have
a coat of long, black, wool-like fur with a white spot in
the umbilical region. The reproductive period is mainly between
the months of May and November. Since the reproductive cycle
lasts of 12 months (11 months gestation and 6-8 weeks lactation)
and the female bears only one pup, usually not every year,
the rate of reproduction is particularly slow. The monk seal
feeds on a variety of fish, octopus, squid etc. It requires
about 5% of its weight in food daily and may travel large
distances to find it. It is an animal of considerable intelligence,
curiosity and adaptability.
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In the past, it has been hunted intensively for its fat and
skin. Today, it is often considered to be a natural competitor
for fishermen and sometimes does indeed damage in their nets
to 'steal' food. Fish stocks are diminishing continually due
to intensive over fishing by tratas and 'gri-gri' boats (traditional
fishing boats), as well as other legal and illegal practices.
This competition for the available food resources is the main
reason for seals being killed from time to time in Greece,
despite the barbarity of the practice, though the frequency
of such deaths fortunately appears to be decreasing. It is
noteworthy that in the area of the National Marine Park no
such incident has been reported during the past few years.
Pup mortality is high because the pups are born in areas where
human intrusion into their habitat is intensive. Apart from
over fishing, pollution and decreased reproductive success
due to restricted renewal of genetic material, are also threats
which have brought the monk seal to the top of the list of
endangered marine mammals in the European Union. It is estimated
that only a few hundred individuals remain (about 500) scattered
over the whole of Mediterranean and on the shores of the North
Atlantic.
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Today the largest population of seals in the Mediterranean
is found in Greece, spread out over the whole of the Aegean
and Ionian Seas, while it is significant that the species
has essentially disappeared from the industrialized Western
Mediterranean. The above makes it easy to appreciate the importance
of the Park in protecting the seals. Because its morphology
and position, the Park is an ideal habitat, rich in food.
The active participation of the region's fishermen and the
fishing Cooperative of Alonnisos in the protection effort
is significant, and has largely contributed to the elimination
of the deliberate killing of seals in the area of the Marine
Park.
Because of its high position in the ecological pyramid the
monk seal may be considered as an indicator of the health
of the marine environment and is certainly a symbol. Its extinction
could be interpreted as foreboding the imminent destruction
of the marine ecosystem. The need for protection is imperative
if coming generations are to have the joy of meeting it in
our seas.
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