Scientific Name
Trimma gigantum

Common Name
Giant pygmy goby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 8-9; Anal spines: 1; Anal soft rays: 7 - 9. This species is a member of the T. tevegae species complex (sensu Winterbottom 2005) with a broad interorbital space and a greatly expanded first haemal arch. It is further characterized by 15-18 predorsal scales; the second and third dorsal spines elongate; a fleshy, longitudinal ridge in the interorbital midline; absence of postorbital trenches; scales covering the cheek and opercle; the fifth pelvic fin ray usually branched dichotomously once; a pattern of six dark saddles across the dorsum on a pale yellow background; and, large adult size (to about 30 mm SL) (Ref. 59339).

Classification

Classified By

Winterbottom & Zur, 2007

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: Palau to Indonesia.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

57 m

Depth To - meters

73 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 57 - 73 m (Ref. 59339)

Trophic Level

3 s.e. 0.00 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

False

Physical Size and Genetics

Maximum Length

3.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (10 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