«INSTAVENNLIG»: Den rosa innsjøen utenfor Melbourne i Australia tiltrekker seg turister. (Photo by William WEST / AFP)
«INSTAVENNLIG»: Den rosa innsjøen utenfor Melbourne i Australia tiltrekker seg turister. (Photo by William WEST / AFP) Foto: William West

Innsjø ble knallrosa – ber folk holde seg unna

Innsjøen i Westgate Park har blitt knallrosa de siste ukene. Naturfenomenet kommer av alger, og et veldig høyt saltnivå som er forsterket i rekordheten i Australia de siste månedene.

Denne artikkelen er over ett år gammel, og kan inneholde utdatert informasjon.

Innsjøen ser nesten giftig ut med den intense rosafargen, men fargen er skapt helt naturlig, og skjer hvert år.

En grønn alge på bunnen av innsjøen, i kombinasjon med veldig høyt saltnivå, gjør at vannet blir rosa. I år har det vært rekordvarmt både i januar, og mars i Australia, og det forsterker effekten. Algen som kalles Dunalliela trives godt i varmt vann og mye sollys.

– Fargen skyldes at saltinnholdet i vannet har økt fordi det er veldig varm og tørt nå, står det på nettsidene til Weatgate Park. De anbefaler folk å holde seg unna vannkanten.

Det advares mot å gå ut i vannet, men det er ikke fordi det er giftig.

Visitors take a photo of a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
A duck swims on a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
A visitor lposes for a photo by a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
A woman takes a photo of a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
Visitors take a photo of a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
Two stilts look out over a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
A visitor looks out over a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
A woman and her dog pose beside a lake that has turned a vivid pink thanks to extreme salt levels further exacerbated by hot weather in a startling natural phenomena that resembles a toxic spill, in Melbourne on March 4, 2019. - The natural spectacle is the result of green algae at the bottom of the lake at Westgate Park on the outskirts of Melbourne responding to high levels of salt and changing colour. (Photo by William WEST / AFP)
Mange strømmer til for å se den rosa innsjøen. Vannet er ikke giftig, bare veldig salt. Foto: William WEST / AFP

– Grunnen er at vannet er så salt og det er så gjørmete på bunnen, at du kommer til å se ut som du er dekket av rosa glasur når du kommer opp igjen, sier en av de ansatte i parken, Mark Norman, til BBC i 2017.

Denne australske sommeren har vært rekordvarm. Det er den varmeste desember, januar og mars som noen sinne er registrert. I byen Rabbit Flat midt i landet har de hatt 115 dager på rad med temperaturer over 39 grader.

Rosa innsjøer er sjelden, men det finnes noen rundt om i verden. Ofte tørker disse innsjøene ut, men Dunalliela-algen overlever det meste.

I Australia finnes det flere rosa innsjøer, blant andre Quairading Pink Lake, Halite Lake i nasjonalparken Coorong, Hutt Lagoon og Pink Lake. De mister rosafargen når det blir kjølig og vått igjen.