A jar labeled anchoas del Cantábrico looks like it should carry the same legal weight as a bottle of Rioja or a wheel of Idiazábal. It does not. Despite functioning in shops and menus as though it carried a government-protected designation of origin, no such protection exists for it. What is sitting on that jar and what is sitting in a tub of vinegar-cured boquerones next to it come from the exact same fish. The only real differences are how each one was prepared, how long it took, and what that means for the price.
This matters because most people ordering either one in a bar, in Pamplona or anywhere else in Spain, assume the label is telling them something guaranteed. It is not. Understanding what actually separates an anchoa from a boquerón, and understanding that the geographic name on the jar is a voluntary industry mark rather than a protected legal category, changes what you are actually paying for and what you should expect when you order one. The same rule applies to other seafood on the same bar counter: navajas served in Pamplona carry their own hidden origin story, arriving overnight from Galicia rather than the nearby Basque coast.
This account draws on Cantabrian and Basque fisheries reporting, a documented industrial history of how the modern anchovy trade was built by Sicilian immigrants on Spain’s northern coast in the 1880s, and current reporting on the region’s unresolved push for real geographic protection.
One Fish, Three Names
The fish behind both products is the same small silver species found across the Bay of Biscay: Engraulis encrasicolus, the European anchovy. The Spanish name boquerón comes from boca, mouth, a nod to how disproportionately large its jaw is for its size.
On the Cantabrian coast, the same fresh, unprocessed catch has its own name entirely: bocarte. In Basque, it is antxoa once cured, or bokarta in its fresh state, and the Basque fishing ports of Getaria and Hondarribia remain major landing points for it today. Getaria even holds its own festival for the catch, Antxua Eguna, on the first Friday of May, where the fresh fish is served alongside txakoli.
So there are three names in circulation for what is, biologically, one animal: bocarte or bokarta for the raw fish, boquerón for one style of preparing it, and anchoa for the other. None of this is regional slang confusion. Each term refers to something specific, and the confusion most people actually have is not about naming, it is about what separates the two finished products.
How Each One Is Actually Made
The difference between an anchoa and a boquerón has nothing to do with the fish itself and everything to do with what happens to it after it is caught.
An anchoa is salt-cured. The fresh bocarte is headed and gutted by hand, then layered into barrels with coarse salt and weighted down. It is left to cure for a minimum of six months, often longer. During that time the salt slowly draws moisture out of the flesh, concentrating the flavor and firming the texture, and turning the fish a deep reddish brown. Once cured, it is desalted, skinned, filleted by hand, and packed in olive oil, ready to eat straight from the tin.
A boquerón is marinated, not cured. The fresh fish is cleaned and filleted, then soaked in a brine of vinegar, water, and salt for as little as 24 to 48 hours. The vinegar lightly pickles the flesh rather than transforming it the way months of salt does. The result is pearly white, soft, tender, and noticeably more acidic and fresh tasting than the deep, salty intensity of a cured anchoa.
That six-to-twelve-month curing window is also the entire reason anchoas cost more than boquerones at the counter. Months of storage, the equipment that requires, and the moisture loss that shrinks yield all add real cost that a 48-hour vinegar bath simply does not carry.
The Sicilians Who Built the Modern Anchovy Trade in Santoña
Almost nobody explaining the anchoa-versus-boquerón split mentions how the modern anchoa industry actually got started, and it did not start in Spain.
By the late 19th century, overfishing and a rapidly growing Italian population had put heavy pressure on Mediterranean anchovy stocks that supplied the great salting houses of Genoa, Naples, and Sicily. According to reporting from the Spanish outlet Xataka, which draws on the academic study “Italianos en el Cantábrico: identidades e historias de una migración particular,” an Italian consular official touring Spain’s northern coast noticed the abundance of anchovy there and the relatively low local interest in exploiting it commercially. Genoese salters made contact, and between the 1880s and 1920s, thousands of Italians settled in the ports of Bermeo, Laredo, and Santoña.
One of them was Giovanni Vella Scaliota, a salter working for the prestigious Neapolitan firm Angelo Parodi. Around 1881 or 1882, Vella settled permanently in the Cantabrian town of Santoña after falling in love with a local woman named Dolores. At the time, salted anchovies everywhere were sold whole in barrels of brine, leaving the cleaning and filleting to the home cook. Vella spent years experimenting with moving that entire process into the factory itself, so the product reached the customer already boned, skinned, and ready to eat. He achieved it around 1883, and by 1900 had built La Dolores, Santoña’s first dedicated anchovy factory, named for his wife.
Smithsonian Magazine independently confirms that the Cantabrian cured-anchovy industry traces to this same wave of Sicilian settlement. At its peak, more than a hundred Italian families lived in Santoña, running roughly thirty factories that employed over 800 people, making it briefly the densest concentration of anchovy canning anywhere in the world.
Why “Anchoas del Cantábrico” Is Not a Protected Name
This is the part that gets skipped in nearly every explainer on this topic.
Products like Idiazábal cheese or Rioja wine carry a Denominación de Origen Protegida, a legally enforced EU designation with audited standards behind it. Anchoas del Cantábrico carries no equivalent protection. What exists is a voluntary collective trademark, used since 2004, that certifies the fish was caught in the Cantabrian Sea and processed in the region. It is an industry mark, not a government-audited legal category, and it carries none of the enforcement power of an actual Protected Geographical Indication.
A University of Cantabria study found that 79 percent of regional canners said they would be willing to pursue formal IGP certification, and that more than half of consumers surveyed said they would pay up to 15 percent more for a certified product. Despite that appetite, and despite both the regional government and the Federation of Fisheries Brotherhoods of Cantabria backing the idea in principle, the actual push toward IGP status remains stalled as of 2026.
In practical terms, a jar labeled anchoas del Cantábrico tells you where the fish was caught and packed under a voluntary industry standard. It does not tell you it passed the kind of legally binding, independently audited process that governs a true DOP or IGP product. It is the same gap between labeling and legal guarantee that shows up with most pimientos de Padrón sold across Spain, where a regional name on the menu does not always mean what a shopper assumes it means.
Where You Will Actually Face This Choice
The fishing season itself, known as the costera del bocarte, opened on March 3 in 2026 and can legally run through November 30, though the fish is at its best in April and May, when the schools move close to shore ahead of spawning. The 2026 season opened with a quota of roughly 30,485 tonnes.
For most visitors, though, the anchoa-versus-boquerón decision does not come up at a fish market. It comes up on a toothpick, in the gilda, the pintxo invented in San Sebastián in 1946 that pairs a pickled guindilla pepper and an olive with either a cured anchoa or a marinated boquerón, depending on the version. An anchoa makes for a saltier, more intense gilda. A boquerón makes for a lighter, more acidic one. The exact same choice shows up constantly on pintxos bar counters in Pamplona during Sanfermines, where both preparations sit side by side and get routinely mixed up by visitors ordering by pointing rather than by name.
Frequently Asked Questions
Are anchoas and boquerones the same fish?
Yes. Both come from the European anchovy, Engraulis encrasicolus. The difference is entirely in preparation: anchoas are salt-cured for at least six months, while boquerones are quickly marinated in vinegar, water, and salt for a day or two.
Why are anchoas more expensive than boquerones?
Anchoas require months of curing time, dedicated storage, and lose volume to moisture loss during the process. Boquerones are ready in a day or two with none of that overhead, which keeps their price significantly lower.
Is “Anchoas del Cantábrico” a protected designation of origin?
No. It is a voluntary collective trademark in use since 2004 that certifies the fish was caught and processed in the Cantabrian region. It is not a legally protected DOP or IGP, though Cantabrian producers and regional authorities have been pushing, so far unsuccessfully, for that status, unlike Burgos, where producers spent 24 years securing exactly that kind of protection for Queso de Burgos before finally winning it in September 2025.
What is a bocarte?
Bocarte is the Cantabrian name for the fresh, unprocessed anchovy before it becomes either a cured anchoa or a marinated boquerón. The Basque equivalent of the term is bokarta, while the cured product itself is called antxoa in Basque.
Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.