Mediterranean
Bluefin tuna ranchers are believed to be at the origin of the publication by the Spanish newspaper
El País two weeks
ago of a draft report of the Standing Committee on Research and Statistics
(SCRS) of the International Commission for the Conservation of Atlantic Tunas (ICCAT). The SCRS report, the tuna
ranchers said in a nutshell, shows that environmentalists had it all wrong:
there are plenty of Bluefin tunas in the Mediterranean; so many that
restrictions ought to be reviewed and fishing quotas increased at ICCAT’s
annual meeting next month in Agadir, Morocco.
I’ve been following
the work of ICCAT’s SCRS quite closely in the last few weeks, and I was at the
experts meeting where the report leaked by the Bluefin tuna industry was
drafted at the beginning of September, so maybe I can help throw some light on
what’s actually going on.

Until 2009,
the 48 member governments of ICCAT used to ignore the advice of their own
scientists when setting Bluefin catch limits and quotas for the Eastern
Atlantic and Mediterranean Sea. This led to the severe depletion of the
species’ Eastern Atlantic stock which spawns in the Mediterranean Sea. That’s
why the Mediterranean Bluefin tuna became the poster child of marine biological diversity loss. Bluefin tuna had
become in the 1980s a high value commodity worth over one billion dollars annually on the international
market, and a large network of tuna ranchers with tentacles in many
Mediterranean countries (France, Spain, Libya, Turkey, Croatia, Malta, Tunisia,
Greece, etc. and of course with links in Japan and other consumer countries)
routinely extracted and towed millions of juveniles and adults from their
spawning grounds into large cages to fatten and ship them to Japan and other
countries.
As a
regional fisheries organization set up to secure “conservation” of the species,
ICCAT was put on the spot and – recognizing that the situation was out of
control – in 2006 it said it would enact regulations to seek the recovery of
the species by 2022. A reporting scheme known as the Bluefin Catch Document
System (BCD) was set up by ICCAT after 2007 to track down how many fish are
caught, and in 2010 quotas were set to 12,900 metric tons for the Eastern
Atlantic (including the Mediterranean). As a result, there’s an overcapacity of
the fleet of large purse seiners catching the fish in the Mediterranean spawning
grounds; in only two to three weeks they normally fulfill their quotas. The
Bluefin tuna purse seine fishing season every year in May looks like the gold rush, and there’s a strong industry
lobby in Brussels and elsewhere to increase the catch limits.
It’s true
that the SCRS believes that Bluefins in the Mediterranean are likely to be on
their way to recovery. But what they’re recommending unanimously now is that
the catch restrictions stay where they are – at least for now. Do not increase the quotas is the key
message from the governments’ experts.

I’ve read
this experts’ final report; in the
Executive Summary alone (8 pages) I
found the word “uncertainty” mentioned 18 times. We’re talking of very big
fish but nevertheless it’s impossible to count them one by one even with
spotter planes, photo or satellite tracking, so the experts are working with
complex computer models fed with data which include assumptions which
policy-makers need to take into consideration. In its conclusions the report
says that there’s “at least a 60% chance” that the species is on its way to
recovery. This is why they’re calling
for precaution and are asking governments not to increase the quotas, at least
until a more complete assessment can be made in 2015. It would be wrong to
relax the efforts now, just when they appear to start bearing fruits.
A key issue
is whether the industry is actually respecting the catch limits. It’s widely
known that the current manual Bluefin Catch Documentation system (BCD) adopted
in 2007 is insufficient (there can be mistakes and errors, deliberate or not);
in 2010 it was agreed to replace it by an electronic system (EBCD) that would
allow ICCAT to track down in real time what’s going on. But this electronic
system is not yet in place.
ICCAT has
received in the last couple of years at least four studies comparing the
reported catch data with international trade records, and there’s always a big
difference that remains unexplained. According to these studies, quite a lot
more fish is traded than officially caught. At the meeting I went to at the
beginning of September, the SCRS formed a small working group to look at these
reports in detail, and their recommendation calls for an independent review of
the trade data. Under these circumstances, it’s no surprise that the SCRS
unanimously believes that there should be no quota increase.
After years
of being the poster child of marine
biodiversity loss, I really hope that the Mediterranean Bluefin can become the poster child of marine biodiversity
recovery. That we can soon say that when we all pull up our sleeves and take
environmental issues seriously, we can change the course of History. That’s
particularly important because the environment needs victories. But we’re not
quite there yet.
This blogpiece is also available in español, HERE (AQUÍ) on the website of the Spanish news agency EFE. And also, en français on WIKIOCEAN.