{"occurrences":[{"area":"ML.252","occurrenceCount":2,"status":"MX.typeOfOccurrenceOccursBasedOnOccurrences"},{"area":"ML.253","occurrenceCount":1,"status":"MX.typeOfOccurrenceOccursBasedOnOccurrences"},{"area":"ML.255","occurrenceCount":8,"status":"MX.typeOfOccurrenceOccursBasedOnOccurrences"},{"area":"ML.259","occurrenceCount":153,"status":"MX.typeOfOccurrenceOccursBasedOnOccurrences"}],"parent":{"phylum":{"cursiveName":false,"vernacularName":"","scientificName":"Ochrophyta","taxonRank":"MX.phylum","id":"MX.213326","hasBold":false},"genus":{"cursiveName":true,"scientificName":"Fucus","taxonRank":"MX.genus","id":"MX.206709","hasBold":false},"species":{"cursiveName":true,"vernacularName":"itämerenhauru","scientificName":"Fucus radicans","scientificNameAuthorship":"L.Bergström & L.Kautsky","taxonRank":"MX.species","id":"MX.213359","hasBold":false},"domain":{"cursiveName":false,"vernacularName":"aitotumaiset","scientificName":"Eucarya","scientificNameAuthorship":"Whittaker & Margulis, 1978","taxonRank":"MX.domain","id":"MX.53761","hasBold":false},"family":{"cursiveName":false,"vernacularName":"haurut","scientificName":"Fucaceae","taxonRank":"MX.family","id":"MX.206708","hasBold":false},"kingdom":{"cursiveName":false,"scientificName":"Chromista","taxonRank":"MX.kingdom","id":"MX.53061","hasBold":false},"class":{"cursiveName":false,"vernacularName":"Brown algae","scientificName":"Phaeophyceae","taxonRank":"MX.class","id":"MX.70528","hasBold":false},"order":{"cursiveName":false,"scientificName":"Fucales","taxonRank":"MX.order","id":"MX.70533","hasBold":false}},"hasLatestRedListEvaluation":true,"scientificName":"Fucus radicans","latestRedListStatusFinland":{"year":2019,"status":"MX.iucnNT"},"hasChildren":false,"redListStatusesInFinland":[{"year":2019,"status":"MX.iucnNT"}],"descriptions":[{"groups":[{"variables":[{"variable":"MX.descriptionText","title":"Description","content":"
Morfologisesti itämerenhauru Fucus radicans muistuttaa samansukuista rakkolevää (F. vesiculosus), mutta on kapealehtisempi ja pienempi. F. radicans myös haaroo tiheämmin ja muodostaa tuuheita pensastoja. Sekovarsien keskiranka on selvästi erottuva ja kaasurakkulat pallomaisia kuten F. vesiculosuksella.
"},{"variable":"MX.descriptionMicroscopicIdentification","title":"Microscopic identification","content":"F. radicans on makroskooppiselta ulkonäöltään niin lajityypillinen, ettei mikroskopiaa yleensä tarvita.
Yleinen matalissa vesissä esimerkiksi Selkämerellä ja Merenkurkussa.
Lisääntyy sekä suvullisesti että suvuttomasti irronneiden osien avulla.
F. radicans on ainoastaan Itämeressä esiintyvä, endeeminen laji, joka kasvaa usein rakkolevän kanssa samoilla kasvupaikoilla. F. radicans kuitenkin viihtyy rakkolevää makeammissa vesissä, minkä takia sitä esiintyykin erityisesti Itämeren pohjoisosissa.