Slender clingfish (Gastrocyathus gracilis) fish species and information / pictures of Slender clingfish - Gastrocyathus gracilis

Slender clingfish (Gastrocyathus gracilis) fish species information

Scientific Name
Gastrocyathus gracilis

Common Name
Slender clingfish

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 5-6; Anal spines: 0; Anal soft rays: 5 - 7. Uniform red brown to yellowish with variable narrow bands along the head, level with the eye on the dorsal surface of the body, often breaking up into spots on the sides. Fins transparent. Distinguished from other clingfishes by its small size with a slender body tapering behind the head and the pointed fleshy tip on the upper jaw that overhangs the lower jaw.

Classification

Classified By

Briggs, 1955

Class

Ray-finned fishes (Actinopterygii)

Order

Clingfishes (Gobiesociformes)

Family

Clingfishes and singleslits (Gobiesocidae)

Distribution

Region

Southwest Pacific

Distribution

Southwest Pacific: endemic to New Zealand.

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

7 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 7 m (Ref. 9003)

Trophic Level

3 s.e. 0.00 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

4.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (25 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated