Batrachomoeus dubius

Eastern Frogfish | Brown Frogfish | Dubious Frogfish
Batrachomoeus dubius
Batrachomoeus dubius, Photo: Andrew Green
Batrachomoeus dubius
Batrachomoeus dubius, adult, Photo: Rick Stuart-Smith
Batrachomoeus dubius
Batrachomoeus dubius, adult, Photo: Rick Stuart-Smith
Batrachomoeus dubius
Batrachomoeus dubius, Port Stephens, Australia, Photo: Tom Davis
Batrachomoeus dubius
Batrachomoeus dubius, juvenile, Eggs with hatchlings, NSW, Australia, Photo: Ian Shaw
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Batrachomoeus dubius
Batrachomoeus dubius
Batrachomoeus dubius
Batrachomoeus dubius
Batrachomoeus dubius

Distribution

Temperate Australasia


Description

Differs from its western relative Batrachomoeus rubricephalus in possessing a darker colour and in lacking pinkish bands between the eyes and on the sides of the head. Both species have an expandable mouth that can accommodate very large prey. Females guard their eggs, which are placed on the ceiling of rock crevices.


Information

Max Size: 35 cm

Sea Temperature Range: 15.8-24.6°C

Depth: 2-150m

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: Infrequent (9.7% 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.


Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney