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Fishes in Greek Seas
Sea, an unknown world filled with mystery and secrets. Sea, the
source of life. A great deal of human activities, are
happening since ancient times in the Greek seas. Fishery plays
a major role. Dozens of fishing equipment and methods are used
for the fishing of about 400 different types of fish and other
marine organisms. The great length of seashore (about 16.000
kilometres), the great number of bays and islands and the
great geographical diversity, have permitted the development
of many different biotopes and ecosystems. Thus, we can find
types of organisms, which travel great distances in search of
food, or for their reproduction, but also types, which spend
most of their life buried in the sand or hidden inside rock
cavities.
The
annual fish production of Greece goes up to about 150.000
tons. The largest part of production is accumulated in few
areas (Saronikos. Thermaikos. Cavala Bay, Thracean Open sea,
Chalkidiki Bay). The factors contributing to the increased
production of these areas are the even and relatively shallow
sea crypt which favors fishing with fishing boats, the high
levels of nourishing salts in these areas the supply of the
rivers in the areas of Thermaikos, Cavala Bay, and Thracean
Open sea and final, the influence of the cold current coming
in from the Black Sea. Which creates favourable conditions for
the mixing of waters. From the 447 fish types found in Greek
seas, very few are of commercial interest. About 75% of total
Greek marine fish production is constituted only from 17
types. We think it is worthwhile a try to learn a few of the
secrets of the most characteristic and most financially
important types which one meets in the Greek seas and in the
fish markets.
GAVROS
Lives
in the greater surface area, but it also appears in depths of
up to 180 meters. It creates dense flocks and realizes small
migrations. It enters salt lakes and mouths of rivers. Curing
winter it goes in greater depths, while in the summer it
approaches the surface. Its length reaches 20 cm. It feeds on
zooplankton. Its reproduction period is from April until
October, usually though, during the summer months. It is
fished almost exclusively with gri - gri. The least allowed
size of the fished gavro is 9 cm.
GOPA
It
lives near the bottoms, in depths up to 200 meters, in murky,
rocky and sandy bottoms and in Posidonias meadows. It's length
reaches 36 cm. It creates flocks and realizes daily vertical
movements. It feeds on algae. It is reproduced between
February and May. Basically, it is fished with gri-gri, nets
and fishing boats.
MACKEREL
it
lives in intermediate levels of water and near the bottoms, in
depths up to 250-300 meters, its length reaches 50 cm. It
creates flocks and it migrates. It is fed usually with small
fish (sardines, gavro etc) and invertebrates. Its reproduction
period is from June till August. It is fished usually with
gri-gri.
MARIDA
The
most characteristic fish of the Greek seas (and the Greek
diet]. It lives near the bottoms and in depths from 15 to 100
meters, in murky bottoms and in Posidonias meadows. Its length
reaches 15-20 cm (female-male). It feeds on plankton and
organisms, living on the bottoms. It is reproduced during the
months of March and May. It is fished mainly with fishing boat
and not as much with gri-gri and nets.
STOCKFISH
It lives in the bottoms until several hundreds of meters,
mainly at the sea crypt. It creates dense flocks and migrates.
The youngsters live even closer to the coasts. Its length
reaches 120 cm. It feeds on fish (gavro, marida, sardines
etc.). The reproduction period is throughout thy ear. Mainly
though in winter and spring. It is fished mainly with fishing
boat (at about 70%) as well as with nets and fishing nets. The
least allowed size of the fished stockfish is 20 cm.
RED-MULLET
It lives in the bottoms and in depths of less than 100 meters.
It creates relatively large flocks. Its length reaches 40 cm.
It feeds on organisms living on the bottoms and small fish.
Its reproduction period is from April till June. It is fished
with nets and fishing boats. The least allowed length of the
fished red mullet is 11 cm. However, often you'll find in the
market much smaller red mullets. Simply ignore them.
SWORD
FISH
Surface
fish of the open sea. It realizes large migrations throughout
the Mediterranean Sea, following certain sea currents. It’s
fishing and consequently its protection, concerns all the
Mediterranean countries. Its length surpasses 4 meters and its
weight reaches 500 kgs. It feeds on fish and squids. It lays
its eggs during the summer months (June - July) in specific
marine areas. Greek fishermen fish this almost exclusively
with fishing nets (sword-fish fishing net), whereas Italian
fishermen use driftnets, which cause the death of dozens of
thousands of dolphins. Turtles, whales and many other marine
organisms. For its protections and after a special request
from the interested fishermen, its fishing is prohibited from
October through January. The least allowed size of the fished
swordfish is 120 cm (the "sword" is not included in
this length). Actually, the swordfish is found in fish markets
all year round, while very often under aged swordfish, of a
much smaller size than the one allowed, come up in the
markets. Its over fishing has led to the decrease of its
stock. Swordfish of 180 kgr represent a distant past.
SARDINES
it lives in depths up to 180 meters. It performs daily
vertical movements. It creates flocks and migrates. Its length
reaches 25 cm. It feeds on zooplankton. The reproduction
period expands from September till June, presenting a maximum
in autumn and spring. The rest of the period it approaches the
seashore where it is fished intensively. Mainly using gri -
gri. Because their price in the market is often judged as
non-profitable, hundreds of tons of sardines are thrown into
the sea each year.
TUNA
For many, it is considered as the master of the seas. It is a
fish of open seas, which creates flocks and realizes big
migrations in all the Mediterranean, following the waters of
specific temperatures. Hyperactive fish, especially strong and
muscular, with a perfect hydrodynamic shape. Its length
reaches 4,5 meters and its weight 650 kgr. It feeds on fish.
In the Mediterranean it is reproduced between May and June.
The leading word consumer of tuna is Japan, where the largest
amount of the Mediterranean, production is exported (including
Greece's' as well). The value of a great tuna (witch is the
most well known to our fishermen) can easily be estimated to
more than 2 millions in the Japanese fish stock market. This
explains the intense over fishing of tuna. Every summer,
except the Mediterranean owned fishing boats, boats with
Korean or Japanese flags, with an opportunity flag or no flag
at all, are devoted in the cruel hunt of tuna, targeting the
gold bearing fish markets of the East. In Greece, the least
allowed fishing size of tuna is 60 cm. Underage red mullets
and stockfish are freely sold in the market. Under aged fish
of any kind, of microscopic size, are sold as
"atherina". The fishery of under aged fish reduces
constantly their ability to reproduce and compensate for the
loss in their population.
SWORDFISH
Despite the protective measures, is fished and sold illegally.
For the last tunas in the Mediterranean, the voyage to Japan
seems inevitable. The cephalopods, the family of stockfish and
the species of Koutsomoura and red-mullet are over fished.
Gavros also undergoes over fishing. The need for a management
of the stocks of the Greek seas is obvious. Something like
that requires the drawing of fishery politics line, political
willingness, political and economical cost and practicing of
the laws. Any other solution constitutes an ostrich, like
behavior. The clouds over fishery are heavy. Lets prevent the
storm.
From
your side, as consumers, you can help with your active
participation in the Green peace crusade for fishery. Deny
fish sized less than allowed. Deny fish caught outside the
allowed fishing period. Thus, take the first step in a long
road, which will insure a future fro, fishery and a future for
marine life.
>> Cyclades Islands : Amorgos, Anafi,
Andros, Antiparos,
Delos, Folegandros,
Ios, Kea,
Kimolos, Kithnos,
Koufonisia, Milos,
Mykonos, Naxos,
Paros, Santorini,
Serifos, Sifnos,
Sikinos, Syros,
Tinos.
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