Hapalochlaena fasciata

Blue-lined octopus | Blue Lined Octopus
Hapalochlaena fasciata
Hapalochlaena fasciata, Port Stephens, NSW, Photo: Tom Davis
Hapalochlaena fasciata
Hapalochlaena fasciata, Port Stephens, NSW, Photo: Ian Shaw
Hapalochlaena fasciata
Hapalochlaena fasciata, Bawley Point, NSW, Photo: Andrew Green
Hapalochlaena fasciata
Hapalochlaena fasciata, Bawley Point, NSW, Photo: Andrew Green
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Hapalochlaena fasciata
Hapalochlaena fasciata
Hapalochlaena fasciata
Hapalochlaena fasciata

Distribution

Temperate Australasia


Description

Iridescent blue lines on the body and blue rings on the arms which brighten and flash when disturbed.


Information

Max Size: 12 cm

Sea Temperature Range: N/A

Depth: N/A

Habitat Generalization Index: N/A

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.


Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Widespread (50% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Solitary (1 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.