Marine Mammals
Orca (Killer Whale)
Orcinus orca · Marine mammal, family Delphinidae
Meeting orcas in a Norwegian fjord in November is diving distilled to essentials: near-darkness at noon, four degrees of water, and then the pane-of-glass moment when a two-meter dorsal fin steams past and a matriarch turns her white eyepatch on you. The herring runs inside the Arctic fjords gather hundreds of whales into weeks of feasting, along with the humpbacks that gatecrash the work. Encounters are snorkel drifts under expedition rules, brief and jolting; the whales' curiosity (a juvenile's flyby, a burst of echolocation you feel in your teeth) is granted, never taken. Everywhere else in the world, an orca sighting on a dive trip is simple jackpot.
Waar en wanneer je er een kunt zien
"Resident" betekent dat je ze bij de meeste duiken op die bestemming tegenkomt; "seizoensgebonden" betekent betrouwbaar aanwezig in de vermelde maanden; al het andere is een bonus, geen garantie.
| Bestemming | Betrouwbaarheid | Maanden | Notities |
|---|---|---|---|
| Arctic NorwayNorway | Seasonal: reliable in season | Nov–Jan | |
| Galápagos IslandsEcuador | Rare | Het hele jaar door | |
| Sea of Cortez & Cabo PulmoMexico | Rare | Het hele jaar door |
Beste maand, in één oogopslag
| Maand | Betrouwbare bestemmingen |
|---|---|
| January | Arctic Norway · Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| February | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| March | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| April | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| May | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| June | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| July | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| August | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| September | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| October | Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| November | Arctic Norway · Galápagos Islands · Sea of Cortez & Cabo Pulmo |
| December | Arctic Norway · Galápagos Islands · Sea of Cortez & Cabo Pulmo |
Ze begrijpen
Habitat: All marine habitats from polar pack ice to the tropics; encounter settings are cold-water herring fjords and chance meetings on baitball runs
Verspreidingsgebied: Cosmopolitan: the most widely distributed mammal after humans, organized into ecotypes with distinct prey, dialects, and cultures
Gedrag: An apex predator that is also the ocean's most sophisticated socialite: stable matrilines, inherited dialects, cooperative hunting refined into local technique. Norway's winter orcas carousel-feed, herding herring into balls and stunning them with tail slaps while snorkelers watch from the margins.
Dieet: Ecotype-dependent: herring in Norway, seals among pack-ice specialists, salmon for Pacific residents, rays and even white sharks for others; each population hunts what its culture teaches
Grootte: doorgaans rond 7.0 m; gedocumenteerd tot 9.8 m (body length; males carry the two-meter dorsal fin and reach well beyond females' size).
Hoe je je ertegenover gedraagt
Winter fjord operations are snorkel-only, drysuit, guide-marshaled: slide in quietly, stay in a tight surface line, never swim at the whales or between hunters and their herring ball, and leave the water on the guide's signal.
Behoud
Listed Data Deficient globally because the ecotypes differ so much; several (the Pacific southern residents among them) are gravely depleted, with prey collapse, PCBs, and noise the leading threats.
Gekende duiksites waar je ze tegenkomt
Gemarkeerde locaties zijn voor deze soort in kaart gebracht door onze redacteurs; de getallen zijn GBIF-waarnemingsrecords vastgelegd binnen ongeveer 5 km van een locatie sinds 1990.
Bekijk
Via de officiële kanalen
Wildlife of Monterey | New film in our auditorium
Live Aviary Cam | Monterey Bay Aquarium
Live Aviary Cam | Monterey Bay Aquarium
Video's zijn ingesloten links naar de eigen kanalen van de makers. We hosten niets en vermelden altijd de bron.