Plectorhinchus caeruleonothus

Blue bastard | Plectorhinchus sp. [schotaf]
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus, Ningaloo Reef, WA, Photo: Rick Stuart-Smith
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus, juvenile, Photo: Graham Edgar
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus, Ningaloo Reef, WA, Photo: Rick Stuart-Smith
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus, Northern Great Barrier Reef, QLD, Photo: Andrew Green
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus, Northern Great Barrier Reef, QLD, Photo: Andrew Green
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus, juvenile, WA, Australia, Photo: Graham Edgar
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Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus
Plectorhinchus caeruleonothus

Distribution

Tropical Indo-Pacific


Description

Slate gray to blue-grey body, lateral line pale, and yellow around eye. Less strongly tapering body, thicker tail base and lower rear dorsal fin than Diagramma labiosum (Painted Sweetlips). Juveniles with thin light blue/white and yellow stripes, and broader dark brown stripes along body, yellow pectoral fin, and spotted or striped tail and rear of dorsal fin. Endemic to Australia. Previously known as P. schotaf, which is only found in Africa and the Middle East.


Information

Max Size: 100 cm

Sea Temperature Range: N/A

Depth: 0-80m

Habitat Generalization Index: 0.71

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: Infrequent (8.3% 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: Few (2 per transect)

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


Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland