Scientific Name
Fusigobius longispinus

Common Name
Orange-spotted sand-goby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 7 - 8. Covered with evenly-spaced round orange spots; develops an elongate first dorsal spine with growth (Ref. 1602). Body whitish; about 4 patches on lateral side of body, triangular patch on caudal base; all fins whitish with orange spots on dorsal and caudal, Transverse scales 7. Predorsal scales 4. Head triangular in cross-section; snout short and pointed. Dorsal fin triangular in shape; in males, 1st dorsal spine elongated and extending over base of last dorsal ray when depressed; 2nd dorsal fin ray pointed posteriorly. Anal fin similar to 2nd dorsal. Pectoral fin large, extending beyond origin of anal fin. Pelvic fin cup-like with connecting membrane (Ref. 43541).

Classification

Classified By

Goren, 1978

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Red Sea and East Africa to the Marshall Islands, north to the Ryukyu Islands (Ref. 559), south to the Great Barrier Reef.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

9 m

Depth To - meters

25 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 9 - 25 m (Ref. 48637)

Trophic Level

3.27 s.e. 0.49 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

8.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest; aquarium: commercial

Vulnerability

Low vulnerability (20 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated