The Dark Brown Kelps (CHB) Bioband

Zone

Bio-band Name

Database Label

Colour

Indicator Species*

Physical Description

Exposure
[Description]

Associate Species*

B & C

Dark Brown Kelps

CHB

Dark chocolate brown

Laminaria setchelli

Saccharina subsimplex

Lessoniopsis littoralis

Hedophyllum sessile (smooth)

Found at higher wave exposures, these stalked kelps grow in the lower intertidal. Blades are leathery, shiny, and smooth. A mixture of species occurs at the moderate wave exposures, while single-species stands of Lessoniopsis occur at high exposures.

SE-VE

Cymathere sp.

Pleurophycus sp.

Costaria sp.

Alaria sp.

Filamentous and foliose red algae

A band of Dark Brown Kelps (CHB) occurs here in the lower intertidal and extends into the subtidal zone of this Semi-Exposed (SE) islet in the Percy Islands.  

Along the western side of Gravina Island the shiny smooth blades of Dark Brown Kelps (CHB) are visible in the lower intertidal zone and nearshore subtidal along with Bull Kelp (NER). This band is indicative of higher wave exposures, as is seen here along this Semi-Exposed (SE) shoreline.

SE06_MM_15751.jpg

SE06_MM_00742.JPG

Bioarea SECR

Bioarea SECR
* Indicator Species: The dominant species in a bioband and usually what the bioband is named for (eg. Barnacles = Barnacle bioband or BAR).
  Associated Species: Species commonly found within a given bioband. These are based on known life histories of these species and ground observations. For more detailed information on associated species and regional differences see the Shore Station database (http://alaskafisheries.noaa.gov/habitat/shorestation/default.htm).