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Fucus serratus ( NO:Sagtang ENG:Serrated Wrack) 5 photos (see below for more photos)
Habit
Photo by: Kjersti Sjøtun
Location: Ormhilleren, Sotra, Hordaland Verified by Bergen Seaweed Group Sampling date: 2008-03-09 Published: 2008-08-20 The species is common in the lower part of the shore
It can form a zone in the upper part of the sublittoral and lower part of the littoral zone, both at sheltered and semi-exposed coasts. The species is easy to identify due to the serrated edge of thallus, but the degree of serrations and the width of blad can vary. The thallus has a conspicuous mid-rib, is dichotomously branched and may be 30-60 cm long. It is perennial, dioecious (male and female gametes on different individuals) and carries mature receptacles during winter and early spring.
Close-up of receptacles
Photo by: Kjersti Sjøtun
Location: Sandviken, Bergen Photo is showing (categorized): Reproductive structure Verified by Network members Sampling date: 2009-03-16 Published: 2010-03-08 Branches with serrated edge and carrying receptacles
Habitat
Photo by: Vivian Husa
Location: Skorpo, Hardangerfjorden, Hordaland Photo is showing (categorized): Thallus Verified by Network members Sampling date: 2008-08-26 Published: 2010-03-10
Habit
Photo by: Vivian Husa
Location: Store Karlsøy, Hordaland Photo is showing (categorized): Thallus Verified by Network members Sampling date: 2009-04-17 Published: 2010-03-10
Note groups of hairs as white dots on the thallus.
Specimen with immature receptacles in autumn
Photo by: Vivian Husa
Location: Skorpo, Hardangerfjorden, Hordaland Photo is showing (categorized): Reproductive structure Verified by Network members Sampling date: 2008-08-31 Published: 2010-03-10
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