Tenerife

Tenerife's fishery is a direct consequence of underwater topography, and the topography is more extreme than almost anywhere else that people fish from a small boat.

THE ISLAND IS THE TOP OF A VERY LARGE MOUNTAIN. Tenerife rises from an ocean floor several kilometres down to the highest point in Spain, and the slope between those two is continuous and steep. There is no shelf worth the name; the island's fringe drops away almost immediately.

SO OCEANIC DEPTH IS AVAILABLE AT INSHORE DISTANCES. A boat leaving a southern port reaches water hundreds of metres deep in a short run, and the deep blue water that elsewhere in Europe requires a long offshore passage is a half-day trip here. That single fact is the basis of the island's charter fleet and its reputation.

WHICH BRINGS BLUE-WATER SPECIES WITHIN REACH OF ORDINARY BOATS. Marlin, tuna and wahoo occupy oceanic water, and oceanic water is close. The fishery is genuinely deep-water fishing conducted at inshore range, which is unusual and is the honest reason the island is worth naming separately from the archipelago.

IT ALSO PRODUCES A DEEP-DROP FISHERY on the slopes themselves, for wreckfish and other deep-water species that live on the steep ground between the shore and the abyss.

AND IT SHAPES THE SHORE FISHERY IN THE SAME DIRECTION. With no shelf, a shore angler on volcanic rock is fishing into water that deepens rapidly, which is why species that would require a boat on a mainland coast are reachable from the rocks — the archipelago's characteristic advantage, at its most pronounced here.

WHAT IS ABSENT IS THE SOFT-GROUND FISHERY. There is very little sand, very little shallow mixed bottom, and correspondingly little of the flatfish, ray and shallow-ground cephalopod fishing that Lanzarote's shared shelf supports. The two islands are close to opposites within one archipelago, which is precisely why both earn a record and the intermediate islands do not.

THE PRACTICAL CONSEQUENCE FOR A VISITOR is that Tenerife rewards a boat and Lanzarote rewards a car, and that is a real distinction rather than a preference.

Tenerife's weather is made by its own topography to an unusual degree, and understanding that explains why the island's fishing is so unevenly distributed.

THE TRADES ARRIVE FROM THE NORTH-EAST AND MEET A WALL. The central ridge and Teide intercept the moisture-laden trade wind flow, which is forced up, cools and condenses. The result is the sea of cloud that sits against the northern slopes for much of the year, and a north coast that is cloudier, wetter, greener and considerably more exposed.

THE SOUTH-WEST SITS IN THE LEE AND IS A DIFFERENT CLIMATE. Descending air warms and dries, so the south is sunny, arid and substantially sheltered from the prevailing wind. That is why the resorts, the marinas and effectively the entire charter fleet are there, and it is a physical explanation rather than a commercial one.

SWELL EXPOSURE FOLLOWS THE SAME DIVISION AND MATTERS MORE. The north coast receives long-period North Atlantic swell, heavily through the winter, and it arrives independently of local wind. That produces the specific hazard the safety context describes: a calm, sunny, windless day with unfishable and genuinely dangerous rock ground on the north coast while the south is benign.

SO A FORECAST FOR THE ISLAND IS NOT A FORECAST FOR A COAST, and anybody planning shore fishing needs the swell direction and period as well as the wind, and needs to know which coast they are on.

BIOLOGICAL SEASONALITY IS MODEST BY TEMPERATE STANDARDS. Water temperature varies over a narrow range, so inshore species are present year-round with changes in abundance and condition rather than presence. The blue-water fishery is more seasonal, tracking water temperature and bait, and the pelagic species that make the island's reputation are more available in some months than others.

AND THE CALIMA IS THE ONE WEATHER EVENT WORTH NAMING SEPARATELY. A hot easterly airflow carrying Saharan dust raises temperatures sharply, drops visibility and persists for days. It is uncomfortable rather than dangerous at sea, and it is a genuine feature of the year rather than a rarity.

WHAT IS PERMITTED, WHERE AND WHEN remains a matter for the Canarian fisheries department and for any protected-area authority, and it is not derivable from anything above.

Tenerife's fishing culture is dominated by having the archipelago's deepest water closest to shore and its largest visitor economy.

THE BLUE-WATER CHARTER FISHERY IS THE ISLAND'S SIGNATURE. Very deep water a short distance off the south-western coast supports a big-game fishery with an international reputation, principally for blue marlin, and the charter fleet built around it is the largest in the archipelago.

THE ISLAND IS SPLIT BY ITS MOUNTAIN. A high volcanic peak divides Tenerife into a wet, green, cloud-covered north and a dry, sunny south, and the difference is as pronounced in the sea conditions as on land. The southern coast is sheltered and calm; the northern one is exposed to Atlantic swell.

SHORE FISHING IS PRACTISED WIDELY, from lava rock and harbour into deep water, and it is a local pursuit as much as a visitor one.

THE ARTISANAL FISHERY PERSISTS in the island's smaller harbours, working traps and lines over hard ground close to shore.

CETACEAN WATCHING IS A MAJOR INDUSTRY in the same southern waters as the charter fishery, and it is a resident population rather than a seasonal one, which is unusual and gives the area a strong conservation profile.

THE VISITOR ECONOMY IS VERY LARGE and concentrated in the south, and coastal development, boat traffic and access pressures follow from it.

AND THE NORTHERN COAST HAS A QUIETER, MORE LOCAL FISHING CULTURE, conducted on harder ground in worse conditions, and it is where the island's shore fishing tradition is strongest.

Tenerife's species picture divides cleanly between the blue water offshore and the rock inshore.

ATLANTIC BLUE MARLIN ARE THE ISLAND'S FAMOUS FISH, occurring in the deep water off the south-western coast in the warmer months, and the fishery for them is the archipelago's principal big-game attraction.

TUNA WORK THE SAME WATER — bigeye, skipjack and albacore among them — and support both the charter fishery and the traditional pole-and-line commercial fishery.

WAHOO AND OTHER BLUE-WATER PELAGICS occur along the drop-offs and current lines.

GREATER AMBERJACK HOLD THE DEEPER ROCK AND STRUCTURE and are a mainstay of jigging.

PARROTFISH ARE THE INSHORE FOOD FISH, as across the archipelago, grazing the rocky shallows and central to the local kitchen.

SEABREAMS AND DENTEX-TYPE SPECIES occupy the rock and the drop-off edges and are the principal shore quarry.

GROUPERS AND WRECKFISH HOLD THE DEEPER STRUCTURE, with the deep-water groupers taken from the steep ground close to shore.

BARRACUDA AND ATLANTIC BONITO work the inshore pelagic zone.

CEPHALOPODS ARE ORDINARY QUARRY, with squid and cuttlefish taken from harbours and rock after dark.

AND THE FAUNA IS EASTERN CENTRAL ATLANTIC RATHER THAN EUROPEAN. A visitor arriving with a British or Mediterranean species list will find much of it inapplicable, and the parrotfish's prominence is the clearest single marker of that.

Tenerife's vocabulary is Canarian with several terms describing the island's defining steepness.

VERIL NAMES THE DROP-OFF — the point where the shallow rock gives way to deep water. On an island with essentially no shelf, the veril is close inshore, it is the principal structural feature of the fishing, and the word is used constantly.

MALPAÍS NAMES THE ROUGH LAVA GROUND that forms much of the coast, sharp and unstable underfoot.

CHARCO NAMES A NATURAL ROCK POOL in the lava, of which the island has many, and they are both habitat and public swimming places.

CALIMA NAMES THE SAHARAN DUST EVENT that periodically hazes the islands on easterly winds, affecting visibility and comfort.

VIEJA NAMES THE PARROTFISH, the emblematic inshore food fish, and its centrality is a good marker of the fauna's African-Atlantic character.

CHERNE NAMES THE WRECKFISH AND DEEP GROUPERS taken from the steep ground close to shore.

AGUAS CALMAS AND THE LEE describe the sheltered water on the southern and western sides in the lee of the mountain, which is where the charter fleet and most of the calm-water activity are concentrated, and knowing that the island has a sheltered half is the first practical fact about fishing here.

AND THE NORTH COAST'S EXPOSURE HAS ITS OWN VOCABULARY of swell and rock condition, because shore fishing there is a swell-reading exercise rather than a wind-reading one.

Tenerife's fishing history follows the archipelago's general pattern with a distinctive twentieth-century chapter.

THE PRE-CONQUEST GUANCHE POPULATION USED THE COAST, and the archaeological record includes fish and shellfish remains and evidence of stone tidal traps built on the shore, showing systematic use of the inshore resource before European contact.

THE ISLAND BECAME AN ATLANTIC PROVISIONING POINT after the fifteenth century, and its ports served transatlantic traffic.

AGRICULTURE DOMINATED THE ECONOMY for a long period — sugar, wine and then bananas — which is part of why Tenerife's fishing sector remained comparatively small relative to the drier eastern islands where the land offered less.

THE AFRICAN BANK FISHERY employed Canarian fleets including Tenerife's, and its loss in the later twentieth century affected the whole archipelago's fishing economy.

BIG-GAME FISHING DEVELOPED FROM THE MID-TWENTIETH CENTURY on the strength of deep water close to shore, and the island's blue marlin reputation was built in that period and sustained by a charter industry.

TOURISM TRANSFORMED THE SOUTHERN COAST from the 1960s, with resort development, harbour construction and a very large visitor economy concentrated in the sheltered south-west.

CETACEAN WATCHING EMERGED AS A MAJOR INDUSTRY in the same waters, based on resident populations, and it brought conservation regulation into an area that had been developed for tourism first.

AND MARINE PROTECTION ARRIVED RECENTLY, with designations covering the southern waters recognising both the cetacean populations and the seabed habitats there.

Tenerife sits within the Canarian and Spanish frameworks, with cetacean protection adding a layer that matters to anybody operating a boat.

RECREATIONAL FISHING REQUIRES A REGIONAL LICENCE with separate shore, boat and underwater categories, and bag limits, minimum sizes and species restrictions attach to it.

CETACEAN WATCHING AND APPROACH IS REGULATED, with rules on distance, vessel numbers and behaviour around whales and dolphins. Those rules apply to any vessel, including a fishing boat, in waters where resident cetacean populations occur — which is exactly where the charter fishery operates.

MARINE PROTECTED AREA DESIGNATION COVERS SOUTHERN WATERS, recognising both cetacean populations and seabed habitat, and it constrains activity independently of fisheries rules.

UNDERWATER FISHING IS SEPARATELY LICENSED AND CONDITIONED, with equipment restrictions and a prohibition on combining spearfishing with breathing apparatus.

BIG-GAME AND BILLFISH FISHING SITS INSIDE INTERNATIONAL MANAGEMENT for Atlantic billfish and tuna, with the measures implemented through European and Spanish law, and recreational catch counts against managed stocks.

INTERTIDAL GATHERING IS CONSTRAINED as it is across the archipelago, and shellfish for consumption fall under a separate public health regime.

CHARTER OPERATION CARRIES ITS OWN LICENSING AND SAFETY REQUIREMENTS through the maritime authority.

AND FISHINGHQ DOES NOT STATE WHAT ANY OF THIS CURRENTLY PERMITS. The regional fisheries directorate, the protected area authority and the maritime administration are the durable answers.