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Sperm goby (Ctenogobius thoropsis) fish species and information / pictures of Sperm goby - Ctenogobius thoropsis

Sperm goby (Ctenogobius thoropsis) fish species information

Scientific Name
Ctenogobius thoropsis

Common Name
Sperm goby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 11; Anal spines: 1; Anal soft rays: 12. Eyes reduced, size do not fill the socket. Both sexes with jaw extending to the rear margin of the orbit. Pectoral fin count high (usually 18, 17-19). Tail elongated (Ref. 33570).

Classification

Classified By

Pezold & Gilbert, 1987

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

South America

Distribution

South America: Surinam and lower Rio Amazonas. Atlantic: northern Brazil.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

20 m

Depth To - meters

40 m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; amphidromous (Ref. 46888); depth range 20 - 40 m (Ref. 33570)

Trophic Level

3.19 s.e. 0.40 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

4.4 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 (13 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)