Bloch's gizzard shad (Nematalosa nasus) fish species and information / pictures of Bloch's gizzard shad - Nematalosa nasus

Bloch's gizzard shad (Nematalosa nasus) fish species information

Scientific Name
Nematalosa nasus

Common Name
Bloch's gizzard shad

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 15-19; Anal spines: 0; Anal soft rays: 17 - 26. Dark bluish dorsally, silvery below (Ref. 3259). A dark spot behind gill opening. Belly with 17 to 20 (usually 18) + 9 to 13 (usually 11), total 28 to 32 (usually 30) scutes. Anterior arm of pre-operculum with the third infra-orbital bone immediately above it, no fleshy gap between; lower jaw strongly flared outward. Pectoral axillary scale present; hind edge of scales distinctly toothed.

Classification

Classified By
Bloch, 1795
Class
Ray-finned fishes (Actinopterygii)
Order
Herrings (Clupeiformes)
Family
Herrings, shads and sardines (Clupeidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: Gulf of Aden north to the Persian Gulf, then eastward to the Andaman Sea, South China Sea and the Philippines, and north to southern tip of Korea. Single record from South Africa (Ref. 3259).
Range
38°N - 1°N, 47°E - 136°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
30 m
Zone
pelagic-neritic
Environment
Marine; freshwater; brackish; pelagic-neritic; anadromous (Ref. 51243); depth range 0 - 30 m (Ref. 6898)
Trophic Level
2.67 s.e. 0.28 Based on food items.
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
22.0 cm
Common Length
15.0 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
Fisheries: minor commercial
Vulnerability
Low vulnerability (22 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)