[Applause]
[Music]
among the problems that now affect the
our society
one of the most important is that of
try to always have activities
eco-friendly and environmentally friendly and the
our challenge or the challenge of the global is
that of trying to pass by
green economy green economy to that
blue economy in what this consists
passage the passage consists on the
fact that the green economy and an economy
which is definitely positive but has a
big issue
it costs a lot while the blue economy that
what you should look for
activate as soon as possible
it is the one with zero impact and zero
consumption is what it seeks ie
have everything using energy
of the earth then this kind of
power
obviously this type of activity must
be made also considering the
terrestrial resources but above all the
marine resources and is what the
our department anyway in the
our universities our institutes of
research knows they are trying to do now that
what is done in particular in the
particular we have done some
graphic campaigns and thalasso of the
monitoring campaigns that are
started more or less in 1984
they are still ongoing and have
highlighted the status of the resources of the
Sardinian seas and Italian seas al
mediterranean in general but to have
a greater idea to get an idea of how
they are the resources
take for example some fish that
have been made knockdowns that
different fishing campaigns that are
were carried out
between 10 and 1000 meters depth
fished around 600 meters
as can be seen from these
slide are some draws that where
the commercial product is close to 80
percent then most of the
resources that are fished are
marketed therefore we say that the
waste of noble proteins is
relatively low but if you move
if you go deep minors around
at 400 meters you can see that the la
proportion changes and is exactly
the opposite, that is, between 20 and 30 per
one hundred is marketed and the rest
it happens lost normally it came
thrown back into the sea now with the new one
ministerial provisions should
be recovered and searched and converted
in feed and if it is
obviously always of noble proteins
dame again if you still go to levels
lower, that is, entering around towards
the 200 meters
so be it really if you are attending
really a waste of resources on
they are some catches that are around
1000 kg of product the product
commercial is around 10 20
children no more so it is obvious that
this is a waste but yes
assumes it also adds the fact that
many species that are very interesting
for other regions of Italy not being
having no market in our island
these are resources lost this
for example this is a draw of
cicerelli that would make the joy and the
request of the Ligurian fishermen
these are free of saber fish that
would make the wealth of the fishermen
Sicilians
well then what is it that we have sought
to make without making a case of trying to
do it is done is set up one
technique that allows you to fish
to limit the beckett a lot
catches accessories in particular that
what consists consists of this type of
fishing consists of creating a
cone of shadow and then a cone of shadow e
of the vibrations in what it consists of
trezzano tool is none other than I am
two parallel ropes that are towed
from two by two fishing boats or two
craft these ropes have one
distance between them of about one meter a
meter and a half where they are related to these
phones are tied to plastic bags
obviously biodegradable or of the
always rags biodegradable
while we are towed at a speed
more or less a half mile video
the time they create vibrations and create
a shadow cone this the vibrations
together with the shadow cone they have power
power to aggregate the forms that i
fish to lead them together to lead them
all together as if it were a flock
this allows allows
use a certain wave frequency of
use a certain period of
use these capture systems
endings that will allow you to have some
peaches mono specifications of the peaches
product of a product of size
volute and therefore certainly to with low
environmental impact
then the identification of a system of
fishing that reduces the impact
physical on the substrate that allows
reduce by reducing by-catches
to reduce waste is something that
it comes to what is desired of both
our ministries that from the community
European
now the question may arise, but how
never this type of fishing is not activated
it is not not done
but it is not simply done
because to carry out this kind of
fishing must be specialists
but also has another side with data
negative
the downside is that it has a big one
power of capture bility ie
normally the fishing systems capture
03 04 for 10 while this system is
approach 100 percent then where
passes this fishing system remains well
little and therefore must be in some
repeated way not repeated over time o
at the due time with a big one big
intervals to give possibilities to
stop to replenish this type though
of activity is an activity that in
somehow sees the operators of the
then fish the fishermen like
collaborators of technicians but the purpose
a purpose of our university of ours
tournament is to make that as you
it means that the university falls from the
Chair and measure with reality
local with the social realities with the
world with the categories one of ours
initiatives has been to make gods
active repopulation of lobster on the
Ragosta
as you know the rind and a crustacean
which has great economic interest that is
very sought after and as a result it is
been over time overfished now for
try to put the system back or in
order the stop let it be
have a continuity of caught in the
time it was thought to collaborate with
the operators that is to say that also i
fishermen are co-authors of the
search
They are therefore been identified
areas
suitable for the fishing areas where they are
small lobsters were introduced for
make sure that they were put
regasta small so they could
grow over time and could in
somehow being managed by
fishermen reality what is the thing that
what happened that the fishermen being
been involved and also the s
and feeling the first actors have in
somehow kept the activity
guarded the area fishing is vain
abusive and above all have reduced by
very much the black market then the market
black of the agosti sold under size
those that are normally sold
to catering and these remote are
been introduced into these areas
over time with the success that in the turn
of 7 8 years the biomass then the
resources have risen by over 500
percent but not only will lose
ghosts and also for the fish that inhabited
rich all the fish quito or fauna that in
some connected way combined with
lobsters
later this was these times
these areas were somehow
always managed by fishermen and
preserved
seen the first success fixed
success the operators themselves have
desired have asked the region
sardegna that others were established
factual areas have been established
other 14 but at the national level e
international
and success that this type of management
this type of management had the
consent of all the marines of the
mediterranean but above all those of the
European community of the same community
European a hopes that this kind of
initiatives that is made by the fisherman
of Sardinia is in some way
emulated copied
assimilated by others from others
this we say that in reality
that’s the research and it’s the
activities that somehow have a
now they have an immediate response though
if if we look at our seas
we see that our ills have one
high biodiversity and the island and the
sardinia is recognized because it is
the island of the so-called centenarians therefore
there are some areas of Sardinia where
the number of centenarians and definitely in
proportion higher than those of others
Italian regions and also others
European regions but at the same time in the sea
the forests were found but the
not centenary forests but a thousand na
millenarians of the dating that
we have done on these plants on these
corals have shown that chorales of
about 4 centimeters in diameter per year
over 1900 years but the colonies that are
you are in some scooter also in the
substrate have a thickness of 8
centimeters so it is logical to think that
if 4 cm year approximately two thousand years or 3
centimeters can can exceed
so very much our island is not
plus an island of centenarians or not
only an island of centenarians but
we must also consider it an island of
millenarians all this what what what
affixed but port harcourt definitely a
make some considerations
if we have this evil if we
we have these biodiversity
surely we owe it also to the
operators who knew how to respect them
our riches but the other question
which must absolutely be taken in
considering the fact that Sardinia
it is at the center of the Mediterranean center
western
so it is in the middle therefore equidistant
both from North Africa and from the rest of the
continental europe so in some
way must be the trait d’union that
can that can and must ensure that the
universities and research institutes that
they resist both in Sardinia and in the north
africa and I speak of Algeria
tunisia and from morocco that have great
maritime traditions at the level of research
they could somehow and they had in
some way or must necessarily
collaborate in a system that there is one
interchange both first initially as
researchers then later as
type of activity or with the activities that
they have been somehow illustrated
first so as to expand the system is
make sure that there is an exchange but not
is an operational exchange between the realities
both scientific and both
flywheel card in the territory
[Music]
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