There is fish – and then there is Almadraba tuna. Anyone who has tried a good piece of bluefin tuna from the Strait of Gibraltar will immediately understand why the Spanish speak of "red gold". But there is more to this fish than just taste. It involves a fishing method so old that even the Phoenicians knew it. Time to take a closer look.
What exactly is the Almadraba?
The word "Almadraba" comes from Arabic and means something like "place of battle" or "battleground". It sounds martial – and it is a little bit. It refers to a huge labyrinth of stationary nets anchored in the sea off the Andalusian coast in spring.
The idea behind it is surprisingly simple and has remained the same for thousands of years: Bluefin tuna migrate every year from the Atlantic through the Strait of Gibraltar into the Mediterranean to spawn. They always swim more or less the same routes. The fishermen know these routes well and place their net labyrinth in their path. The tuna swim in, find only the way forward – and end up in the final chamber, from where they are brought on board.
No trawler that plows up the seabed. No kilometer-long drift net. Just a firmly anchored net waiting in exactly one place.
A story dating back to the Phoenicians
Tuna has been caught on the Costa de la Luz for around 3,000 years. Phoenicians, Greeks, and Romans all valued the fish from the region. The Romans even made their famous fish sauce "garum" here – you can still visit the ruins of the old factories today, for example in the ancient city of Baelo Claubia on Bolonia Beach.
Tuna was so important back then that it was minted on coins. Some of the oldest coins on the Iberian Peninsula show a tuna.
Once, there were over 100 Almadrabas along this coast. Today, there are only a handful left. The best-known ones are in Barbate, Tarifa, Conil de la Frontera, and Zahara de los Atunes – all in the province of Cádiz, all just a few kilometers apart.
Tarifa and Barbate: Two places, one fish
Barbate is the heart of the Almadraba. The town is no classic postcard idyll, but a large part of the people here live directly or indirectly off tuna. Hundreds of families depend on the catch. When the season starts in April, it is a real event here. Anyone who wants to experience bluefin tuna at its best should visit Barbate's long promenade from late April to early May during the "Semana Gastronómica del Atún".
Tarifa, the southernmost point of the European mainland, is the other major name. The town is best known among surfers and kitesurfers because of the constant wind – but tuna fishing also has deep roots here. At the Tarifa fish market, you can get various cuts of tuna, from lean to fatty. Particularly sought after: the "ventresca", the fatty piece from the belly, which is hard to find in Germany.
Both places celebrate their fish with fiestas, tapas routes, and festivals. Tuna is not just food here, but identity.
The advantages: Why the Almadraba is something special
The Almadraba has a few real strengths that set it apart from industrial fishing:
It is selective. It mainly catches large, mature fish that have already spawned at least once. Young fish can escape through the nets. This protects the stock for the future.
It is stationary. The net remains in one place. There is no large-scale bycatch of dolphins, turtles, or other species, as occurs with huge drift nets or purse seine nets.
It protects the seabed. Unlike bottom trawlers, which are dragged across the seabed, the Almadraba does not cause damage down there.
It secures jobs. In an economically weak region, entire communities depend on this tradition. This is a living craft, not an anonymous industrial operation.
The quality is outstanding. The fish is often bled directly on board and quickly chilled – some operations flash-freeze it within minutes at minus 60 degrees. The result is top quality that is in demand worldwide, especially in Japan.
The disadvantages and downsides
As beautiful as the tradition is – there are a few critical points:
The stock was in danger for a long time. In the 1950s, around 15,000 tons were still caught per year. In 2006, it was only about 1,100 tons. Bluefin tuna was massively overfished – but mainly through industrial fishing in the Mediterranean, less so by the Almadraba itself.
The catch is not pleasant to watch for everyone. When the large fish are brought on board in the final chamber, it is an archaic and quite bloody affair. This deters some.
There are disputes over quotas and power. Who may fish and how much is strictly regulated and decided in Madrid and Brussels. There are always tensions between the operations over the distribution of concessions.
Dependence on a single species. If tuna is doing poorly, entire towns suffer. This dependence makes the region vulnerable – especially since other fish species in the area are struggling with problems such as the invasive Asian algae or introduced blue crabs.
Good news: Tuna is back
And now for the good news: Bluefin tuna is doing significantly better again. Since around 2013, the stock has been noticeably recovering. Fishermen report that there are now "tuna everywhere".
In late autumn 2025, the international fishing commission ICCAT increased the bluefin tuna catch quota by a historic 17 percent – after years in which it had been frozen. For the Almadrabas of Cádiz and the small fishermen of Barbate, this is a real breather. The industry views the increase as recognition that sustainable management has been practiced.
Does this mean "free rein"? No. The operations themselves emphasize that a higher quota does not mean "anything goes", but rather a little more leeway while continuing to manage cautiously. It is exactly this balance between tradition, economy, and science that makes the Almadraba so exciting.
Conclusion: More than just a fish
The Almadraba is one of the rare examples where an ancient method still makes sense after 3,000 years – both culinarily and culturally. It is selective, gentle, and delivers quality that is second to none. At the same time, its history serves as a reminder of how quickly a stock can collapse and how important it is to fish with restraint.
The next time you hold a piece of bluefin tuna or a good can of tuna from Andalusia in your hand, you will now know the story behind it. And maybe it will even taste a little bit better then.
