Commerson's anchovy (Stolephorus commersonnii) fish species and information / pictures of Commerson's anchovy - Stolephorus commersonnii

Commerson's anchovy (Stolephorus commersonnii) fish species information

Scientific Name
Stolephorus commersonnii

Common Name
Commerson's anchovy

Biology
Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 18 - 19. Belly slightly rounded with 0-5 small needle-like pre-pelvic scutes. Maxilla tip pointed, reaching to or a little beyond hind border of pre-operculum, the latter convex, rounded. Small teeth on hyoid bones. Isthmus muscle tapering evenly forward. Body light transparent fleshy brown with a pair of dark patches behind occiput, followed by a pair of lines to dorsal fin origin. Bears a silver stripe on flanks. Closely resembles S. apiensis of Fiji and Samoa; S. brachycephalus of Papua New Guinea.

Classification

Classified By

Lacep?de, 1803

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Anchovies (Engraulidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: East Africa, from Gulf of Aden to Zanzibar, northern Madagascar and Mauritius (but not from Red Sea or Persian Gulf) eastward to Hong Kong and Papua New Guinea. Apparently replaced by Stolephorus apiensis in Fiji and Samoa.

Range

27°N - 24°S, 38°E - 155°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

50 m

Zone

pelagic-neritic

Environment

Marine; brackish; pelagic-neritic; anadromous (Ref. 51243); depth range 0 - 50 m (Ref. 189)

Trophic Level

3.05 s.e. 0.20 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

10.0 cm

Common Length

8.5 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

Fisheries: commercial

Vulnerability

Low vulnerability (14 of 100)

Resilience

High, minimum population doubling time less than 15 months (K=0.95-0.96)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated