Daniel Pauly: The ocean's shifting baseline

18,676 views ・ 2015-07-17

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Prevoditelj: Senzos Osijek Recezent: Suzana Baric
00:12
I'm going to speak
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Pričat ću
00:14
about a tiny, little idea.
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o jednoj sitnoj ideji.
00:17
And this is about shifting baseline.
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I to o promjeni osnove.
00:21
And because the idea can be explained in one minute,
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Kako ta ideja može biti objašnjena u jednoj minuti,
00:25
I will tell you three stories before
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prije nje ću vam ispričati tri priče
00:28
to fill in the time.
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da popunim vrijeme.
00:30
And the first story
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Prva priča je
00:32
is about Charles Darwin, one of my heroes.
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o Charlesu Darwinu, jednom od mojih heroja.
00:35
And he was here, as you well know, in '35.
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On je bio ovdje, kao što svi dobro znate, u '35.
00:38
And you'd think he was chasing finches,
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I mislili biste da je tražio zebe,
00:40
but he wasn't.
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ali nije.
00:42
He was actually collecting fish.
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Ustvari je sakupljao ribu.
00:44
And he described one of them
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I jednu od njih je opisao
00:46
as very "common."
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kao jako "uobičajenu".
00:48
This was the sailfin grouper.
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To je bila Mycteroperca olfax.
00:50
A big fishery was run on it
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Do '80-ih su je
00:52
until the '80s.
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mnogo lovili.
00:55
Now the fish is on the IUCN Red List.
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Sada je ta riba na IUCN-ovom (Međunarodni savez za očuvanje prirode) crvenom popisu.
00:58
Now this story,
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Ta priča,
01:00
we have heard it lots of times
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čuli smo je puno puta
01:03
on Galapagos and other places,
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na Galapagosu i ostalim mjestima
01:05
so there is nothing particular about it.
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pa nije ništa posebno.
01:08
But the point is, we still come to Galapagos.
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Ali poanta je, svejedno dolazimo na Galapagos.
01:11
We still think it is pristine.
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Još uvijek mislimo da je nedirnut.
01:14
The brochures still say
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Brošure još uvijek kažu
01:17
it is untouched.
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da je netaknut.
01:19
So what happens here?
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Što se događa ovdje?
01:22
The second story, also to illustrate another concept,
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Druga priča, također da ilustriram jedan drugi koncept,
01:25
is called shifting waistline.
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zove se promjena obujma struka.
01:27
(Laughter)
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(Smijeh)
01:30
Because I was there in '71,
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Zato što sam proučavao lagunu
01:32
studying a lagoon in West Africa.
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u Zapadnoj Africi '71.
01:34
I was there because I grew up in Europe
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Bio sam tamo jer sam odrastao u Europi
01:37
and I wanted later to work in Africa.
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i želio sam kasnije raditi u Africi.
01:39
And I thought I could blend in.
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I pomislio sam da ću se uspjeti uklopiti.
01:41
And I got a big sunburn,
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Zadobio sam veliku opekotinu od sunca
01:43
and I was convinced that I was really not from there.
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i bio sam uvjeren da nisam zapravo od tamo.
01:46
This was my first sunburn.
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To je bila moja prva opekotina.
01:48
And the lagoon
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Laguna je
01:51
was surrounded by palm trees,
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bila okružena palmama,
01:53
as you can see, and a few mangrove.
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kao što možete vidjeti, i par mangrova.
01:55
And it had tilapia
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Imala je tilapije
01:57
about 20 centimeters,
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duge oko 20 centimetara,
01:59
a species of tilapia called blackchin tilapia.
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vrstu tilapije koja se zove crnobradata tilapija.
02:01
And the fisheries for this tilapia
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Ribolov na tilapije
02:03
sustained lots of fish and they had a good time
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sadržavao je mnoštvo ribe i dobro e išao
02:06
and they earned more than average
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te se zaradilo više nego u prosjeku
02:08
in Ghana.
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u Gani.
02:10
When I went there 27 years later,
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Kada sam otišao tamo 27 godina kasnije,
02:13
the fish had shrunk to half of their size.
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riba se smanjila na pola svoje veličine.
02:16
They were maturing at five centimeters.
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Sazrijevale su s pet centimetra.
02:18
They had been pushed genetically.
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Potaknute su genetski.
02:20
There were still fishes.
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Još je bilo ribe.
02:22
They were still kind of happy.
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I ribari su još uvijek na neki način bili sretni.
02:24
And the fish also were happy to be there.
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I ribe su bile sretne što su tamo.
02:29
So nothing has changed,
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Ništa se nije promijenilo,
02:31
but everything has changed.
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ali sve se promijenilo.
02:33
My third little story
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Moja treća pričica jest
02:35
is that I was an accomplice
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da sam bio suučesnik
02:37
in the introduction of trawling
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početaka kočarenja
02:39
in Southeast Asia.
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u južnoistočnoj Aziji.
02:41
In the '70s -- well, beginning in the '60s --
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U 70-ima – pa, s početkom u 60-ima –
02:44
Europe did lots of development projects.
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Europa je radila na mnogo razvojnih projekata.
02:47
Fish development
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Unaprijeđenje ribarstva
02:49
meant imposing on countries
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je značilo nametanje
02:51
that had already 100,000 fishers
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industrijskog ribarstva
02:54
to impose on them industrial fishing.
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na zemlje koje već imaju 100 000 ribara.
02:57
And this boat, quite ugly,
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Brod se zvao, prilično ružno,
02:59
is called the Mutiara 4.
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Mutiara 4.
03:01
And I went sailing on it,
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Plovio sam se na njemu,
03:03
and we did surveys
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i istraživali smo
03:06
throughout the southern South China sea
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cijelu južnu stranu Južnog kineskog mora,
03:09
and especially the Java Sea.
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a posebno Javansko more.
03:11
And what we caught,
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Ostali smo bez riječi
03:13
we didn't have words for it.
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zbog onoga što smo uhvatili.
03:15
What we caught, I know now,
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Sada znam, da je ono što smo uhvatili
03:18
is the bottom of the sea.
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bilo dno mora.
03:20
And 90 percent of our catch
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90 posto našeg ulova
03:22
were sponges,
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bile su spužve,
03:24
other animals that are fixed on the bottom.
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ostale životinje koje su čvrsto na dnu.
03:27
And actually most of the fish,
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I zapravo, većina ribe,
03:29
they are a little spot on the debris,
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bile su male točke smeća,
03:31
the piles of debris, were coral reef fish.
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hrpe smeća, bile su ribe koraljnih grebena.
03:34
Essentially the bottom of the sea came onto the deck
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U biti, dno mora se diglo na palubu
03:36
and then was thrown down.
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i onda bilo bačeno dolje.
03:38
And these pictures are extraordinary
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Ove slike su izvanredne
03:41
because this transition is very rapid.
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jer je taj prijelaz veoma brz.
03:44
Within a year, you do a survey
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U jednoj godini, napraviš istraživanje
03:47
and then commercial fishing begins.
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i onda komercijalno ribarstvo počinje.
03:49
The bottom is transformed
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Dno je promijenjeno
03:51
from, in this case, a hard bottom or soft coral
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iz, u ovom slučaju, tvrdog dna ili mekanog koralja
03:54
into a muddy mess.
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u blatni nered.
03:57
This is a dead turtle.
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Ovo je mrtva kornjača.
03:59
They were not eaten, they were thrown away because they were dead.
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Nisu pojedene, bačene su, zato što su mrtve.
04:02
And one time we caught a live one.
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Jednom smo uhvatili živu kornjaču.
04:04
It was not drowned yet.
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Još se nije utopila.
04:06
And then they wanted to kill it because it was good to eat.
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I onda su je htjeli ubiti jer je bila jestiva.
04:09
This mountain of debris
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Ovu planina smeća
04:12
is actually collected by fishers
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ustvari skupe ribari
04:15
every time they go
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svaki put kada odu
04:17
into an area that's never been fished.
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u područje u kojem se još nije lovilo.
04:19
But it's not documented.
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Ali to nije dokumentirano.
04:21
We transform the world,
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Mijenjamo svijet,
04:23
but we don't remember it.
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ali to ne pamtimo.
04:25
We adjust our baseline
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Pomičemo osnovicu
04:28
to the new level,
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na novu razinu,
04:30
and we don't recall what was there.
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a ne sjećamo se što je bilo tamo.
04:34
If you generalize this,
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Ako generaliziramo,
04:36
something like this happens.
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nešto takvo se događa.
04:38
You have on the y axis some good thing:
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Na y osi imamo neke dobre stvari:
04:41
biodiversity, numbers of orca,
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biološku raznolikost, broj orki,
04:44
the greenness of your country, the water supply.
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zelenilo u državi, zalihu vode.
04:47
And over time it changes --
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I s vremenom se to mijenja.
04:49
it changes
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Mijenja se
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because people do things, or naturally.
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jer ljudi sve rade prirodno.
04:53
Every generation
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Svaka generacija
04:55
will use the images
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će koristiti slike
04:57
that they got at the beginning of their conscious lives
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koje su dobili na početku svog svjesnog života
05:00
as a standard
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kao standard
05:02
and will extrapolate forward.
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i procijenit će vrijednost dalje.
05:04
And the difference then,
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I razliku će tada vidjeti
05:06
they perceive as a loss.
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kao gubitak.
05:08
But they don't perceive what happened before as a loss.
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Ali ne primjećuju što se dogodilo prije kao gubitak.
05:11
You can have a succession of changes.
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I možete imati slijed promjena.
05:13
At the end you want to sustain
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Na kraju želite zadržati
05:16
miserable leftovers.
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jadne ostatke.
05:19
And that, to a large extent, is what we want to do now.
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I to je to ono što želimo napraviti sada.
05:22
We want to sustain things that are gone
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Želimo zadržati stvari koje su nestale
05:25
or things that are not the way they were.
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ili stvari koje više nisu kakve su bile.
05:29
Now one should think
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Čovjek bi trebao misliti
05:31
this problem affected people
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da je ovaj problem pogodio ljude
05:33
certainly when in predatory societies,
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u predatorskim društvima,
05:37
they killed animals
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ubijali su životinje
05:39
and they didn't know they had done so
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i nisu znali što su napravili
05:41
after a few generations.
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generacijama dalje.
05:43
Because, obviously,
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Očito,
05:46
an animal that is very abundant,
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životinja koje ima u velikom broju,
05:51
before it gets extinct,
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prije nego izumre,
05:54
it becomes rare.
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postane rijetka vrsta.
05:57
So you don't lose abundant animals.
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Ne izgubite vrste kojih ima mnogo.
06:00
You always lose rare animals.
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Uvijek izgubite one koje su rijetke.
06:02
And therefore they're not perceived
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I tako nisu gledane
06:04
as a big loss.
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kao veliki gubitak.
06:06
Over time,
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S vremenom
06:08
we concentrate on large animals,
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se koncentriramo na velike životinje,
06:10
and in a sea that means the big fish.
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a u moru to znači velike ribe.
06:12
They become rarer because we fish them.
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Postanu rijetke jer ih lovimo.
06:15
Over time we have a few fish left
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S vremenom nam ostane nekoliko riba
06:17
and we think this is the baseline.
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i mi mislimo da je to osnova.
06:20
And the question is,
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Pitanje je:
06:22
why do people accept this?
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Zašto ljudi to prihvaćaju?
06:27
Well because they don't know that it was different.
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Zato što ne znaju da je bilo drugačije.
06:30
And in fact, lots of people, scientists,
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I zapravo, mnogo ljudi, znanstvenika,
06:33
will contest that it was really different.
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osporavati će da je to potpuno drugačije.
06:35
And they will contest this
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A osporavat će to zato što
06:37
because the evidence
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zato što dokaz koji
06:39
presented in an earlier mode
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koji je prikazan ranije,
06:44
is not in the way
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nije onakav
06:47
they would like the evidence presented.
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kakav bi oni htjeli da je prikazan.
06:49
For example,
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Na primjer,
06:51
the anecdote that some present,
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anegdota koju neki prikazuju,
06:53
as Captain so-and-so
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kapetan taj-i-taj
06:55
observed lots of fish in this area
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opazio je mnogo ribe u tom području,
06:58
cannot be used
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znanstvenici ribarstva
07:00
or is usually not utilized by fishery scientists,
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ne mogu to iskoristiti,
07:03
because it's not "scientific."
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jer nije "znanstveno".
07:05
So you have a situation
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Dakle, imate situaciju
07:07
where people don't know the past,
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gdje ljudi ne znaju prošlost,
07:10
even though we live in literate societies,
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iako živimo u pismenom društvu,
07:13
because they don't trust
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jer ne vjeruju
07:15
the sources of the past.
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izvorima prošlosti.
07:18
And hence, the enormous role
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I stoga, ogromna je uloga
07:21
that a marine protected area can play.
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koju zaštita mora može igrati.
07:23
Because with marine protected areas,
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Zato što sa zaštitom područja mora,
07:26
we actually recreate the past.
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mi zapravo ponovno stvaramo prošlost.
07:30
We recreate the past that people cannot conceive
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Ponovno stvaramo prošlost koju ljudi ne mogu shvatiti,
07:33
because the baseline has shifted
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zato što se osnova promijenila
07:35
and is extremely low.
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i ekstremno je niska.
07:37
That is for people
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To je za ljude
07:39
who can see a marine protected area
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koji mogu vidjeti zaštićeno područje mora
07:44
and who can benefit
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i koji se mogu okoristiti
07:46
from the insight that it provides,
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uvidom koji pruža,
07:49
which enables them to reset their baseline.
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što im omogućuje da ponovno postave svoju osnovu.
07:53
How about the people who can't do that
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Što s ljudima koji to ne mogu napraviti
07:55
because they have no access --
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jer nemaju pristup –
07:57
the people in the Midwest for example?
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ljudi sa Srednjeg Zapada, na primjer?
08:00
There I think
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Mislim da tamo
08:02
that the arts and film
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to može nadomjestiti
08:04
can perhaps fill the gap,
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umjetnost, film
08:06
and simulation.
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i simulacija.
08:08
This is a simulation of Chesapeake Bay.
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Ovo je simulacija Chesapeake zaljeva.
08:11
There were gray whales in Chesapeake Bay a long time ago --
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Prije mnogo vremena u Chesapeake zaljevu postojali su sivi kitovi --
08:13
500 years ago.
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prije 500 godina.
08:15
And you will have noticed that the hues and tones
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I možete primijetiti da su boje i nijanse
08:18
are like "Avatar."
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kao u "Avataru".
08:20
(Laughter)
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(Smijeh)
08:22
And if you think about "Avatar,"
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Ako razmislite o "Avataru",
08:24
if you think of why people were so touched by it --
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ako razmislite zašto su ljudi toliko dirnuti njime –
08:27
never mind the Pocahontas story --
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zanemarite priču o Pocahontas –
08:31
why so touched by the imagery?
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zašto su toliko dirnuti izgledom?
08:35
Because it evokes something
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Zato što on budi nešto
08:38
that in a sense has been lost.
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što je izgubljeno.
08:40
And so my recommendation,
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Pa je moja preporuka,
08:42
it's the only one I will provide,
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jedina koju ću dati,
08:44
is for Cameron to do "Avatar II" underwater.
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da Cameron napravi "Avatar II" pod vodom.
08:49
Thank you very much.
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Puno vam hvala.
08:51
(Applause)
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(Pljesak)
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