Short answer
The Azores Triangle—Pico, Faial and São Jorge—sits in a tectonically complex part of the North Atlantic near the meeting of the North American, Eurasian and Nubian plates. Volcanism built the islands; people later reshaped them through settlement, vineyards, whaling and inter-island exchange. The documentary story begins with Portuguese exploration and settlement in the fifteenth century, while new environmental research raises a debated possibility of earlier human presence.
Why three islands form a “Triangle”
Pico, Faial and São Jorge are called the Triangle because short sea passages connect their positions in the Central Group. The name is geographic and cultural, not a separate geological plate.
Geodesy describes the wider Azores as a diffuse triple-junction region involving the North American, Eurasian and Nubian plates. A 2022 GPS study estimated roughly 4.2–4.8 millimetres per year of spreading across the Eurasian–Nubian boundary in the studied area. That slow movement is meaningful over geological time; it is not a day-to-day forecast of earthquakes or eruptions.
For live seismic and volcanic information, use the Azores’ official monitoring services rather than an evergreen travel article.
Three volcanic islands, three different records
Pico is a 2,351-metre stratovolcano—the highest point in Portugal—built above oceanic crust and accompanied by fissure systems. Documented historic eruptions occurred in 1562–64, 1718 and 1720. The 1562–64 event associated with Mistério da Prainha is described by the Azores Geopark as the longest reported eruption in Azorean history. “Mistério” became a local name for lava-created terrain whose origin was mysterious to communities living through it.
Faial’s most famous modern event began at Capelinhos on 27 September 1957 and continued until 24 October 1958. Explosive and effusive phases created new land that joined Faial. A 1672–73 eruption had already affected the island’s western side. Capelinhos remains a powerful place to see how quickly a coast can change.
São Jorge is a long basaltic fissure island with steep cliffs and coastal fajãs. Confirmed events include the 1580 eruption, whose flows reached the sea; activity in 1808 involving explosions and lava; and a confirmed submarine event in 1902. Fajãs can form through lava reaching the coast or through collapses and sediment processes, so they do not all share one origin.
A careful human timeline
- 1427: a date commonly associated with probable Portuguese knowledge or discovery of the Azores in official tourism chronologies.
- 1439: a royal decree documents plans for settlement; individual islands were populated at different times.
- From the 1460s: Faial’s settlement accelerated under Josse van Huertere, with a notable Flemish connection.
- Chiefly from the 1480s: Pico is generally described as one of the last Central Group islands to be settled in the Portuguese period.
- 1562–64, 1718 and 1720: Pico’s documented historic eruptions transformed inhabited landscapes.
- Seventeenth to twentieth centuries: wine, maritime trade, whaling, migration and changing agricultural cycles shaped Pico and its neighbours.
- 1957–58: Capelinhos added new land to Faial and contributed to displacement and emigration.
- 1976: the Autonomous Region of the Azores gained its present constitutional framework after Portugal’s democratic transition.
- 2004: UNESCO inscribed the Landscape of the Pico Island Vineyard Culture as World Heritage.
The UNESCO property preserves a working system of small plots enclosed by dry-stone basalt walls. These currais protect vines from wind and salt. The listed property covers 987 hectares with a 1,924-hectare buffer, and its history reaches back to the island’s fifteenth-century settlement. Its nineteenth-century peak, later vine diseases and subsequent recovery are part of a living landscape—not a frozen museum scene.
Myth versus evidence
“The Azores are the remains of Atlantis”
This is a compelling modern association, not an accepted archaeological conclusion. Current geology explains Pico, Faial and São Jorge as oceanic volcanic islands in an active plate-boundary region. No accepted body of archaeological evidence identifies the archipelago as Plato’s Atlantis. The story belongs to cultural imagination unless new evidence changes the scholarly picture.
“Pico is the world’s tallest mountain when measured from the seabed”
Pico is 2,351 metres above sea level. The Azores Geopark states that the volcano rises about 3,500 metres above the surrounding seafloor and describes it as the third-largest volcano in the North Atlantic. Adding an underwater foundation helps explain scale, but there is no single universally applied “tallest from base” method across mountains and volcanoes. The precise, defensible claim is that Pico is Portugal’s highest point and a very large oceanic volcano.
“The Azores have four seasons in one day”
The phrase captures lived experience but is not a scientific climate classification. Maritime airflow, changing fronts, altitude and steep island topography can create rapid local variation in cloud, shower, wind and sun. It is useful packing advice—carry layers and waterproof protection—but not a literal meteorological rule.
“People certainly lived here centuries before the Portuguese”
A 2021 multiproxy study reported signs of widespread human disturbance dated approximately 700–850 CE, several centuries before Portuguese documentary settlement. The authors found the pattern consistent with possible earlier visitors, including a possible Norse context. This is important research, but interpreting environmental proxies as proof of a particular people or permanent colony remains debated. The safe wording is that evidence for pre-Portuguese human influence is under active scientific discussion.
How science changes the way you visit
At Criação Velha, basalt walls are not decoration: they record adaptation to young rock, wind and salt. At Capelinhos, the contrast between older green land and the dark 1957–58 deposits makes geological time visible. On São Jorge, fajãs show how lava, slope failure and coastal processes make limited flat land that communities then learned to use.
History also changes the view. Whaling museums preserve a difficult economic era and the knowledge that later helped islanders develop non-lethal whale watching. Harbours record movement among the Triangle islands; vineyards record work, trade, disease and recovery.
The responsible way to tell these stories is to keep dates, sources and uncertainty attached. Myth can enrich a journey, but it should not replace evidence—and science becomes more memorable when it is connected to the places people can actually see.
Pico, Faial and São Jorge: the Azores Triangle
The island outlines and relative positions are derived in a projected coordinate system so their spatial relationship is preserved. Port dots are approximate orientation points, and dashed lines explain inter-island connections rather than depicting a current ferry track.
Mount Pico above and below the Atlantic
- Piquinho summit — 2,351 m above mean sea level.
- Current summit crater — approximately 2,250 m; about 550 m in average diameter, with fumarolic activity.
- Fossil crater — approximately 2,050 m; evidence of an earlier construction stage.
- Volcanic edifice — built by hundreds of basaltic eruptions.
- Mean sea level — the 0 m reference.
- Inferred submerged remainder — approximately 1,149 m below sea level, calculated as 3,500 − 2,351.
- Total edifice relief — approximately 3,500 m from the surrounding seafloor to the summit.
- Surrounding seafloor — a generalized line; real bathymetry is irregular.
Discovery and settlement of Pico
Portuguese sailors knew the Azores in the fifteenth century, and Pico is generally described as one of the last Central Group islands settled in the Portuguese period, chiefly from the 1480s. Environmental evidence published in 2021 points to possible human influence centuries earlier, but it does not yet identify a particular people or prove a permanent colony.
Reading Pico through historic maps
Historic maps are evidence of how Pico and the Azores were described in their own time, not substitutes for modern geographic data. The original coastline, labels and imperfections are preserved; each image should carry its date, cartographer, holding collection and reuse status.
Old charts preserve changing knowledge of the islands—and the limits and errors of their makers.
Sailing the Azores Triangle
Short crossings connect the three islands geographically and culturally, carrying people, goods and ideas across the Central Group. Their apparent closeness should not hide the reality of Atlantic wind, swell and fast-changing visibility: routes and conditions must always be checked with current maritime information.
From whaling to whale watching
Shore-based whaling reached Faial in 1851 and Lajes do Pico in 1867, becoming a difficult part of island livelihoods and identity. The last sperm whale was killed in the Azores in 1987; organised whale watching began from Lajes in 1989. Museums, boats and lookout posts preserve the human history without romanticising the killing of whales.
Ships and conflict in waters around the Triangle
The Central Group lay beside Atlantic routes used by merchantmen, privateers and naval vessels. This selective timeline shows three well-documented encounters in or close to the Faial–Pico channel. Locations are stated carefully, and the illustrations are atmospheric reconstructions rather than maps of tactical positions.
Three separate pencil-and-watercolour scenes of the Cinco Chagas in 1594, General Armstrong in 1814 and U-581 in 1942
The loss of the Cinco Chagas
In 1594, English ships fought the Portuguese carrack Cinco Chagas in waters south of the Faial–Pico channel; the ship burned with catastrophic loss of life. The event is connected to the Triangle by its offshore location, not by evidence of a land battle on Pico. Exact ship positions in the artwork are interpretive.
General Armstrong in Horta
The General Armstrong action took place in Horta harbour on Faial in 1814, within sight of Pico across the channel. It is part of the Triangle’s shared maritime setting, but it was not a battle fought on Pico.
U-581 in the Faial–Pico channel
After an encounter with HMS Westcott in 1942, U-581 was scuttled in the channel between Faial and Pico. The wreck is a wartime event in the channel’s history; the illustration does not establish a precise wreck position and is not a navigation aid.
These encounters belong to the maritime history of waters around Pico and Faial; they do not mean that Pico itself was the battlefield in every case.
How Pico wine is made: five connected stages
Pico wine begins in small plots protected by dry-stone basalt walls, where vines are tended and grapes are normally harvested by hand. Crushing, pressing, fermentation, maturation and bottling then depend on the wine being made. This sequence explains the shared logic of production without presenting one cellar’s method as a universal recipe.
Five singular pencil-and-watercolour illustrations following Pico grapes from basalt-walled vineyard to finished bottle
1. Tend vines inside the currais
The basalt walls shelter low vines from wind and salt spray and create Pico’s distinctive vineyard pattern.
2. Harvest the grapes
Grapes are selected and picked by hand when their balance suits the intended wine.
3. Crush and press
The fruit is processed promptly; pressing choices depend on grape variety and wine style.
4. Ferment and guide the wine
Yeasts turn grape sugars into alcohol while the producer controls time, temperature and contact with solids.
5. Mature and bottle
The wine may rest in tank, barrel or bottle before release, according to the producer’s chosen style.
Basalt walls shape the vineyard landscape; decisions in the cellar shape the wine. Methods vary by grape, producer and style.
Cetaceans documented around the Azores
The checklist covers 28 cetacean species documented for the Azores in the cited dataset. Some are seen regularly, while others are seasonal, offshore or exceptional records. The singular illustrations support recognition and storytelling, but photographs, expert guidance and current sighting data are better for identification at sea.
N — native in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage and central to Azorean whaling history.
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
N — native in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked Azorean usage.
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage; baleia-de-bico-de-Cuvier is a transparent Portuguese alternative.
A documented regional record is not a promise of a sighting; occurrence, seasonality and abundance differ by species.
28 documented cetaceans
Complete for the 28 taxa in the cited GBIF/UAc Azores EEZ dataset.
The categories native, migrant, vagrant and indeterminate are biogeographic classifications in the cited UAc material, not abundance estimates or guarantees of a whale-watching sighting.
Oceanic dolphins (Delphinidae) (11)
- English name: Short-finned pilot whaleScientific name: Globicephala macrorhynchusAzorean reference: Baleia-piloto-tropical
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Older DOP/UAc-linked Azorean name; modern Portuguese also uses baleia-piloto-de-barbatana-curta.
- English name: Short-beaked common dolphinScientific name: Delphinus delphisAzorean reference: Golfinho-comum
N — native in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked Azorean usage.
- English name: Long-finned pilot whaleScientific name: Globicephala melasAzorean reference: Baleia-piloto
M — migrant in the cited UAc classification; documented in the Azores EEZ.
DOP/UAc-linked regional list; baleia-piloto-de-barbatana-longa is the more explicit modern form.
- English name: Risso's dolphinScientific name: Grampus griseusAzorean reference: Grampo
N — native in the cited UAc classification; documented in the Azores EEZ.
Moleiro is also recorded in the DOP/UAc-linked Azorean list.
- English name: Fraser's dolphinScientific name: Lagenodelphis hoseiAzorean reference: Golfinho-de-Fraser
V — vagrant; the GBIF/UAc dataset narrative identifies it as certainly occasional in the Azores EEZ.
Portuguese name cross-checked in Azores cetacean material; absent from the older 27-species DOP/UAc-linked table.
- English name: Killer whale (orca)Scientific name: Orcinus orcaAzorean reference: Orca
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: False killer whaleScientific name: Pseudorca crassidensAzorean reference: Falsa-orca
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Striped dolphinScientific name: Stenella coeruleoalbaAzorean reference: Golfinho-riscado
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Atlantic spotted dolphinScientific name: Stenella frontalisAzorean reference: Golfinho-pintado
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Rough-toothed dolphinScientific name: Steno bredanensisAzorean reference: Caldeirão
V — vagrant in the cited UAc classification; documented in the Azores EEZ.
Distinctive regional name recorded in the DOP/UAc-linked Azorean list.
- English name: Common bottlenose dolphinScientific name: Tursiops truncatusAzorean reference: Roaz
N — native in the cited UAc classification; documented in the Azores EEZ.
Established regional Portuguese name in the DOP/UAc-linked list.
Rorquals (Balaenopteridae) (6)
- English name: Sei whaleScientific name: Balaenoptera borealisAzorean reference: Baleia-sardinheira
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Bryde's whaleScientific name: Balaenoptera edeniAzorean reference: Baleia-de-Bryde
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage; the B. edeni complex has a difficult taxonomic history, so retain the dataset's scientific name.
- English name: Blue whaleScientific name: Balaenoptera musculusAzorean reference: Baleia-azul
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Fin whaleScientific name: Balaenoptera physalusAzorean reference: Baleia-comum
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Common minke whaleScientific name: Balaenoptera acutorostrataAzorean reference: Baleia-anã
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Humpback whaleScientific name: Megaptera novaeangliaeAzorean reference: Baleia-de-bossas
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage; baleia-corcunda is another widespread Portuguese name.
Right whales (Balaenidae) (1)
- English name: North Atlantic right whaleScientific name: Eubalaena glacialisAzorean reference: Baleia-franca
The 2020 UAc poster prints M (migrant), while the GBIF/UAc dataset narrative explicitly calls this species certainly occasional/vagrant in the Azores EEZ. Editorially treat any Azores record as exceptional, not as a normal visitor sighting.
Established DOP/UAc-linked usage.
Sperm whales (Physeteridae) (1)
- English name: Sperm whaleScientific name: Physeter macrocephalusAzorean reference: Cachalote
N — native in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage and central to Azorean whaling history.
Dwarf and pygmy sperm whales (Kogiidae) (2)
- English name: Pygmy sperm whaleScientific name: Kogia brevicepsAzorean reference: Cachalote-pigmeu
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Dwarf sperm whaleScientific name: Kogia simaAzorean reference: Cachalote-anão
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage; older references may print the superseded spelling Kogia simus.
Beaked whales (Ziphiidae) (6)
- English name: Northern bottlenose whaleScientific name: Hyperoodon ampullatusAzorean reference: Baleia-de-bico-de-garrafa
M — migrant in the cited UAc classification; documented in the Azores EEZ.
Botinhoso is an alternative in the DOP/UAc-linked Azorean list.
- English name: Sowerby's beaked whaleScientific name: Mesoplodon bidensAzorean reference: Baleia-de-bico-de-Sowerby
N — native in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Blainville's beaked whaleScientific name: Mesoplodon densirostrisAzorean reference: Baleia-de-bico-de-Blainville
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Gervais' beaked whaleScientific name: Mesoplodon europaeusAzorean reference: Baleia-de-bico-de-Gervais
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: True's beaked whaleScientific name: Mesoplodon mirusAzorean reference: Baleia-de-bico-de-True
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage.
- English name: Cuvier's beaked whaleScientific name: Ziphius cavirostrisAzorean reference: Zífio
I — occurrence category indeterminate in the cited UAc classification; documented in the Azores EEZ.
Established DOP/UAc-linked usage; baleia-de-bico-de-Cuvier is a transparent Portuguese alternative.
Porpoises (Phocoenidae) (1)
- English name: Harbour porpoiseScientific name: Phocoena phocoenaAzorean reference: Boto
V — vagrant; the GBIF/UAc dataset narrative identifies it as certainly occasional in the Azores EEZ.
Name recorded in the DOP/UAc-linked Azorean list; boto can be ambiguous outside this taxonomic context.
A detailed field guide to Pico’s marine fish
This field guide presents 48 representative fish associated with Azorean waters: 24 coastal species, 12 pelagic species and 12 deep-slope species. It is deliberately detailed but it is not every fish recorded in the archipelago. Habitat and local-reference labels are drawn from the cited checklist and vernacular sources.
Habitat: Mid-water schools above shallow rocky reefs, descending toward shelter when alarmed.
Well-established Azorean name; castanheta is also used in names of other damselfishes.
Common reef fish; keep distance from nesting sites and do not feed schools.
Habitat: Algae-covered shallow rocky reefs, commonly in the first few tens of metres.
Azores Bioportal also records maragota; a wider Portuguese ichthyofauna list uses bodião-dos-Açores. The older scientific name Centrolabrus caeruleus may appear.
Azorean endemic. Observe without collecting or disturbing its reef habitat.
Habitat: Rocky reefs where it grazes algae; adults are conspicuous in clear shallow water.
A highly characteristic and well-supported Azorean name.
Colour differs by sex and life phase. It is a fishery species; check current official rules before any capture.
Habitat: Rock crevices and caves, with much of the body hidden; often more active after dark.
Moreia-preta is another clear Portuguese/Azorean form.
Never hand-feed or put fingers into crevices. Morays defend shelter and can inflict a serious bite.
Habitat: Coastal and offshore schools over rocky or sandy bottoms, reef edges and island slopes.
Well-established Azorean name, but bicuda can be applied broadly; retain the scientific name in labels.
Give large wild fish normal space and do not feed them. Fishery and food-safety advice should come from current official sources.
Habitat: Rocky island slopes and seamounts; juveniles can be shallower while adults commonly occupy deeper water.
Peixão is also recorded locally, often for a large individual; it is not a separate species.
Azores Bioportal displays Near Threatened in its 2022 conservation layer. It is a regulated deep-water fishery; verify current measures.
Coastal, pelagic and deep-slope fish occupy very different habitats and are not equally likely to be seen by visitors.
Detailed fish field guide
Curated visitor field guide, not a complete inventory. The 2021 checklist documents the much larger confirmed ray-finned-fish fauna of the Azores EEZ.
These 48 fish are a representative visitor field guide—not every species recorded in Azorean waters.
This is an identification and natural-history guide, not edibility, fishing, handling or medical advice. Never eat an unidentified fish. Do not handle wildlife. Minimum sizes, closed seasons, quotas and conservation assessments change; link readers to the current official Azores rules.
Rocky coast and reef (24)
- English name: ShannyScientific name: Lipophrys pholisAzorean reference: Caboz-gigante
Habitat: Intertidal basalt rock pools and the very shallow wave-washed shore, hiding beneath stones and in crevices.
Azorean name in the UAc annotated list; caboz is a broad local name for several blennies and gobies.
Small resident shore fish; observe in place and never lift or strand it outside its pool.
- English name: Montagu's blennyScientific name: Coryphoblennius galeritaAzorean reference: Caboz-de-crista
Habitat: Upper-shore pools and wave-washed basalt, often tucked into holes where its head crest helps identification.
Descriptive Portuguese name supported by the UAc fish literature; not every island speaker separates all caboz species by name.
Harmless to visitors; leave animals, eggs and shelter stones undisturbed.
- English name: Rock-pool blennyScientific name: Parablennius parvicornisAzorean reference: Caboz-das-poças
Habitat: Shallow tide pools and algae-covered rock, including pools isolated at low tide.
A useful Azorean/Portuguese field name; caboz remains a shared vernacular for several small shore fishes.
A characteristic pool resident; avoid sunscreen contamination, trampling and moving rocks.
- English name: Rock gobyScientific name: Gobius paganellusAzorean reference: Bochecha
Habitat: Intertidal pools and shallow rocky crevices, usually resting close to the bottom.
Joana and caboz are also recorded Azorean names; both are ambiguous across small gobies/blennies.
Harmless; photograph without chasing it from cover or turning over occupied stones.
- English name: Yellow triplefinScientific name: Tripterygion delaisiAzorean reference: Caboz-de-três-dorsais
Habitat: Shaded shallow rocky walls, overhangs and cave mouths; breeding males can appear bright yellow with a dark face.
Descriptive Portuguese field name; local everyday use may shorten it to caboz.
Tiny and easily overlooked; use a close-focus photograph rather than handling.
- English name: Azores chromisScientific name: Chromis limbataAzorean reference: Castanheta-amarela
Habitat: Mid-water schools above shallow rocky reefs, descending toward shelter when alarmed.
Well-established Azorean name; castanheta is also used in names of other damselfishes.
Common reef fish; keep distance from nesting sites and do not feed schools.
- English name: Canary damselScientific name: Similiparma luridaAzorean reference: Castanheta-preta
Habitat: Territorial on shallow rocky reef; juveniles may occur around boulders and pools, while adults defend small patches.
Castanheta-azul is also recorded; older Azores sources may list the synonym Abudefduf luridus.
No visitor hazard; do not disturb defended nests. Taxonomy was updated after older Azores checklists.
- English name: Blue rockfish (Azores endemic wrasse)Scientific name: Symphodus caeruleusAzorean reference: Bodião-azul
Habitat: Algae-covered shallow rocky reefs, commonly in the first few tens of metres.
Azores Bioportal also records maragota; a wider Portuguese ichthyofauna list uses bodião-dos-Açores. The older scientific name Centrolabrus caeruleus may appear.
Azorean endemic. Observe without collecting or disturbing its reef habitat.
- English name: Mediterranean rainbow wrasseScientific name: Coris julisAzorean reference: Lambaz
Habitat: Shallow rocky and algae-rich areas, often crossing sand patches and burying in sand at night.
Peixe-rei is also recorded in Azorean sources, but that name is ambiguous in wider Portuguese usage.
Colour and pattern change with age and sex, so illustrations should not imply a single fixed appearance.
- English name: Ornate wrasseScientific name: Thalassoma pavoAzorean reference: Rainha
Habitat: Active over shallow rocky bottoms and algae-covered reef, especially in warm, clear water.
Peixe-rainha, bodião, verdugo and torcida are also recorded; usage varies and some terms overlap other wrasses.
Colour varies strongly with life phase; avoid definitive sex or age labels from colour alone.
- English name: Mediterranean parrotfishScientific name: Sparisoma cretenseAzorean reference: Veja
Habitat: Rocky reefs where it grazes algae; adults are conspicuous in clear shallow water.
A highly characteristic and well-supported Azorean name.
Colour differs by sex and life phase. It is a fishery species; check current official rules before any capture.
- English name: White seabreamScientific name: Diplodus sargusAzorean reference: Sargo
Habitat: Rocky reef and surf-exposed coastal zones, often feeding over mixed rock and sand.
Sargo-legítimo is a more specific Azorean commercial form.
Regulated fishery species. Do not publish a fixed minimum size without checking current Azores rules.
- English name: SalemaScientific name: Sarpa salpaAzorean reference: Salema
Habitat: Schools over shallow rocky and algae-covered bottoms, grazing close to the seabed.
Shared Portuguese and English field name in many guides; well established in the Azores.
Regulated fishery species; use as an observation entry, not an edibility recommendation.
- English name: BogueScientific name: Boops boopsAzorean reference: Boga
Habitat: Coastal schools above rocky and mixed bottoms, sometimes forming dense mid-water groups.
Established Portuguese/Azorean fishery name.
Regulated fishery species; verify current minimum size and local rules before fishing.
- English name: Axillary seabreamScientific name: Pagellus acarneAzorean reference: Besugo
Habitat: Shelf and coastal rocky-sandy bottoms, commonly deeper than the easiest snorkelling sites.
Established Azorean commercial and vernacular name.
Regulated fishery species; check current Azores minimum-size rules.
- English name: Red porgyScientific name: Pagrus pagrusAzorean reference: Pargo
Habitat: Rocky and gravelly shelf, reef edges and island slopes; larger fish tend to occur deeper.
Pargo-legítimo is the more specific official/local commercial form.
Regulated fishery species; use current official rules for legal size and season.
- English name: Blacktail comberScientific name: Serranus atricaudaAzorean reference: Garoupa
Habitat: Rocky reef, ledges and cave mouths from shallow water down the island slope.
Garoupa-de-rolo is a more specific Azorean name; garoupa alone can refer broadly to groupers/combers.
Azores Bioportal displays Data Deficient in its 2022 conservation layer; do not imply a quantified local trend.
- English name: Dusky grouperScientific name: Epinephelus marginatusAzorean reference: Mero
Habitat: Rocky reefs, caves and ledges; large adults favour substantial shelter and are often deeper.
Mero-legítimo is a more specific Azorean commercial form.
Azores Bioportal displays Vulnerable in its 2022 conservation layer. Slow-growing reef predator; observe without disturbance and check current fishery protections.
- English name: Island grouperScientific name: Mycteroperca fuscaAzorean reference: Badejo
Habitat: Rocky reef, caves and seamount or island-slope structure, from coastal water into deeper reef.
Well-established Azorean and Macaronesian name.
Azores Bioportal displays Vulnerable in its 2022 conservation layer. It is regulated; verify current rules and avoid disturbing sheltering fish.
- English name: Striped red mulletScientific name: Mullus surmuletusAzorean reference: Salmonete
Habitat: Sand and gravel patches beside rocky reef, probing sediment with its paired chin barbels.
Salmonete-vermelho is also used in official/local fish lists.
Regulated fishery species. Watch from a distance so its feeding behaviour remains natural.
- English name: Madeira scorpionfishScientific name: Scorpaena maderensisAzorean reference: Coça
Habitat: Camouflaged on shallow rocky bottom, beside ledges or at cave entrances.
Rascaço is also recorded; names among Scorpaena species can be confused locally.
Do not touch: scorpionfish have venomous spines capable of a painful injury.
- English name: Black morayScientific name: Muraena augustiAzorean reference: Moreão
Habitat: Rock crevices and caves, with much of the body hidden; often more active after dark.
Moreia-preta is another clear Portuguese/Azorean form.
Never hand-feed or put fingers into crevices. Morays defend shelter and can inflict a serious bite.
- English name: Grey triggerfishScientific name: Balistes capriscusAzorean reference: Peixe-porco
Habitat: Rocky reef and nearby open bottom, sometimes schooling or appearing seasonally near the coast.
Established Azorean commercial and visitor name.
Azores Bioportal displays Vulnerable in its 2022 conservation layer. Give nesting or defensive fish space; the teeth are strong.
- English name: Guinean pufferScientific name: Sphoeroides marmoratusAzorean reference: Peixe-balão
Habitat: Shallow rocky and sandy coastal areas, including protected pools and coves.
Sopapo and sapo are also recorded; both can be ambiguous regional names.
Do not handle or eat. EU rules prohibit fishery products from poisonous Tetraodontidae; never use a visitor guide to judge edibility.
Open ocean and seamount (12)
- English name: European pilchard (sardine)Scientific name: Sardina pilchardusAzorean reference: Sardinha
Habitat: Near-surface coastal schools; a key small forage fish linking plankton to larger fish, seabirds and cetaceans.
Petinga denotes small sardine in local/commercial use and should not be presented as a separate species.
Regulated fishery species. Avoid promises about seasonal abundance and check current size rules before fishing.
- English name: Atlantic chub mackerelScientific name: Scomber coliasAzorean reference: Cavala
Habitat: Schooling coastal-to-offshore fish of the upper water column, sometimes concentrated around islands and seamounts.
Established Azorean commercial and vernacular name.
Regulated fishery species; current Azores rules should be checked before capture.
- English name: Blue jack mackerelScientific name: Trachurus picturatusAzorean reference: Chicharro
Habitat: Coastal and offshore schools around island slopes and seamounts; juveniles are important forage fish.
Chicharro-do-alto is also used; vernacular boundaries with other Trachurus can vary by fish size and fishing context.
Regulated fishery species; do not use the name alone for market identification where several horse mackerels may occur.
- English name: Skipjack tunaScientific name: Katsuwonus pelamisAzorean reference: Bonito
Habitat: Fast-moving surface and near-surface schools in warm oceanic water, often associated with feeding birds and baitfish.
Gaiado is also an established Azorean name; bonito can be ambiguous beyond the region.
Highly mobile fishery species. Presence varies with ocean conditions; fishing rules and stock advice must be checked at publication time.
- English name: AlbacoreScientific name: Thunnus alalungaAzorean reference: Atum-voador
Habitat: Offshore pelagic waters; a seasonal, long-distance migrant through the North Atlantic around the archipelago.
Voador and germão are also recorded in Azorean fishery use.
Managed migratory fishery species. Check current ICCAT, EU and Azores rules rather than publishing fixed quotas or seasons.
- English name: Bigeye tunaScientific name: Thunnus obesusAzorean reference: Atum-patudo
Habitat: Oceanic water column, often deeper by day with vertical movement linked to prey and temperature.
Patudo is the familiar shortened Azorean fishery name.
Azores Bioportal displays Vulnerable in its 2022 conservation layer. This is a tightly managed migratory fishery; verify current rules and stock advice.
- English name: Atlantic bluefin tunaScientific name: Thunnus thynnusAzorean reference: Atum-rabilho
Habitat: Wide-ranging oceanic migrant crossing productive fronts and waters around islands and seamounts.
Rabilo is a regional variant. Avoid albacora here because Portuguese commercial use of tuna names is not uniform.
Strictly managed ICCAT/EU fishery. Conservation layers and stock assessments change; link to current rules rather than freezing a status in prose.
- English name: Common dolphinfishScientific name: Coryphaena hippurusAzorean reference: Dourado
Habitat: Warm surface waters offshore and around floating objects; occurrence around the islands is seasonal and ocean-condition dependent.
Doirado is an older/regional spelling found in Azorean sources. This is a fish and must never be confused in copy with a dolphin.
Fast-growing pelagic fishery species. Do not promise a sighting or a fixed season; check current local guidance.
- English name: Greater amberjackScientific name: Seriola dumeriliAzorean reference: Lírio
Habitat: Coastal-to-offshore rocky structure, island slopes and seamounts; powerful adults may cruise in open water.
Írio and charuteiro-catarino are also recorded; the latter is less transparent to visitors.
Fishery species and strong wild predator; observe without feeding and verify current fishing rules.
- English name: White trevallyScientific name: Pseudocaranx dentexAzorean reference: Encharéu
Habitat: Schools around coastal headlands, island slopes and seamounts, shifting between reef edge and open water.
Xaréu and xaréu-bicudo are also recorded; similar carangids make casual name-only identification unreliable.
Regulated fishery species. Use body shape and fin details, not the vernacular alone, for identification.
- English name: Yellowmouth barracudaScientific name: Sphyraena viridensisAzorean reference: Bicuda
Habitat: Coastal and offshore schools over rocky or sandy bottoms, reef edges and island slopes.
Well-established Azorean name, but bicuda can be applied broadly; retain the scientific name in labels.
Give large wild fish normal space and do not feed them. Fishery and food-safety advice should come from current official sources.
- English name: SwordfishScientific name: Xiphias gladiusAzorean reference: Espadarte
Habitat: Oceanic predator that moves through deep water and the upper water column on a daily cycle; rarely a casual shore sighting.
Agulhão is also recorded in older Azorean fishery material but can overlap billfish names.
Managed migratory fishery species. Check current ICCAT, EU and Azores measures before mentioning catch rules or status.
Deep slope and benthic (12)
- English name: Blackspot seabreamScientific name: Pagellus bogaraveoAzorean reference: Goraz
Habitat: Rocky island slopes and seamounts; juveniles can be shallower while adults commonly occupy deeper water.
Peixão is also recorded locally, often for a large individual; it is not a separate species.
Azores Bioportal displays Near Threatened in its 2022 conservation layer. It is a regulated deep-water fishery; verify current measures.
- English name: Splendid alfonsinoScientific name: Beryx splendensAzorean reference: Alfonsim
Habitat: Deep island slopes and seamounts, schooling around steep structure well below normal recreational diving depth.
Official Azorean commercial name. Do not merge with imperador, Beryx decadactylus.
Deep-water fishery species managed through changing EU/Azores measures. Usually a fisheries or market encounter, not a visitor swim sighting.
- English name: AlfonsinoScientific name: Beryx decadactylusAzorean reference: Imperador
Habitat: Deep rocky slopes and seamounts, generally beyond recreational diving depth.
Alfonsino and alfonsim-da-costa-larga also appear in official/local lists; imperador best separates it from Beryx splendens in this guide.
Regulated deep-water fishery species. Do not publish fixed catch limits without checking current official measures.
- English name: Blackbelly rosefishScientific name: Helicolenus dactylopterusAzorean reference: Boca-negra
Habitat: Deep rocky and muddy slopes, often resting close to the bottom far below casual snorkelling depth.
Vermelho is also used locally but is less species-specific.
Regulated fishery species. Like related scorpaeniform fishes, it has sharp spines and should not be handled.
- English name: Black scabbardfishScientific name: Aphanopus carboAzorean reference: Peixe-espada-preto
Habitat: Meso- to bathypelagic water beside steep island slopes, with vertical movements through the deep water column.
Established official Portuguese name; do not confuse it with peixe-espada-branco, Lepidopus caudatus.
Deep-water fishery species, normally encountered through catches or markets rather than underwater tourism. Check current fishery advice.
- English name: Silver scabbardfishScientific name: Lepidopus caudatusAzorean reference: Peixe-espada-branco
Habitat: Benthopelagic and pelagic deep water along island slopes, commonly far below recreational diving depth.
Talabarte is a documented Azorean name; it may be more familiar in fishery than visitor usage.
Deep-water fishery species. Older local guides discuss changes in catches; avoid turning that into an uncited current population trend.
- English name: Common moraScientific name: Mora moroAzorean reference: Melga
Habitat: Deep island slope close to the seabed, usually beyond recreational diving depth.
Juliana appears for this species in some older material, but official Azorean fish lists more clearly associate juliana with Phycis blennoides.
Primarily a deep-fishery/scientific field-guide species. Do not identify market fish by the ambiguous name juliana alone.
- English name: Greater forkbeardScientific name: Phycis blennoidesAzorean reference: Juliana
Habitat: Muddy and sandy deep slope, generally deeper than the coastal forkbeard Phycis phycis.
Abrótea-do-alto is also an official/local form and is less likely to be confused with Mora moro.
Deep-bottom fishery species; verify current rules and do not imply it is a normal snorkelling encounter.
- English name: ForkbeardScientific name: Phycis phycisAzorean reference: Abrótea
Habitat: Rocky caves and ledges from coastal water into the island slope; largely nocturnal and sheltering by day.
Abrótea-da-costa is the more specific official/local form, distinguishing it from deeper-water relatives.
Fishery species; observe sheltering fish without torch harassment and check current rules before capture.
- English name: European congerScientific name: Conger congerAzorean reference: Congro
Habitat: Rock crevices, caves and mixed bottoms from the coast down the island slope; large adults tend to use deeper water.
Safio is also established in Azorean official lists.
Never hand-feed or reach into its shelter; a large conger can inflict a serious bite. It is also a regulated fishery species.
- English name: Atlantic wreckfishScientific name: Polyprion americanusAzorean reference: Cherne
Habitat: Rocky deep slopes, wreck-like structure and seamounts; juveniles may associate with floating objects near the surface.
Cherne-americano is the more explicit official Portuguese form.
Azores Bioportal displays Data Deficient in its 2022 conservation layer. Long-lived deep-water fishery species; avoid unsupported local trend claims.
- English name: OilfishScientific name: Ruvettus pretiosusAzorean reference: Peixe-chocolate
Habitat: Deep pelagic and island-slope water, associated with offshore habitat around islands and seamounts.
Escolar and chocolate are also accepted Portuguese commercial names in the EU database.
Food warning: EU law requires Gempylidae including this species to carry preparation/cooking information and a warning about substances with adverse gastrointestinal effects.
Sources and further reading
- Smithsonian Global Volcanism Program — Pico
- Smithsonian Global Volcanism Program — Faial
- Smithsonian Global Volcanism Program — São Jorge
- Azores Geopark — Pico geosites and historic eruptions
- JGR Solid Earth — Present-Day Surface Deformation of the Azores Triple Junction
- UNESCO — Landscape of the Pico Island Vineyard Culture
- PNAS — Early human settlement of the Azores
- Azores Geopark — history of the Azores