Variable sabretooth blenny (Petroscirtes variabilis) fish species and information / pictures of Variable sabretooth blenny - Petroscirtes variabilis

Variable sabretooth blenny (Petroscirtes variabilis) fish species information

Scientific Name
Petroscirtes variabilis

Common Name
Variable sabretooth blenny

Biology
Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 16-19; Anal spines: 2; Anal soft rays: 16 - 19. Sexually dimorphic: males are orange-brown while females are sea-green dorsally and lighter below. Similar to P. breviceps in shape but has a blotched, rather than lined pattern on the body. Some color form are probably habitat related. The plain form is mainly green and has numerous tiny pearly spots and occurs in seagrass beds (Ref. 48636).

Classification

Classified By

Cantor, 1849

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Combtooth blennies (Blenniidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Sri Lanka to Fiji, north to southern Taiwan and the Yaeyama Islands, south to the southern Great Barrier Reef.

Range

25°N - 24°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; demersal

Trophic Level

3.1 s.e. 0.43 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

15.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5005 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (26 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