Madagascar round herring (Sauvagella madagascariensis) fish species and information / pictures of Madagascar round herring - Sauvagella madagascariensis

Madagascar round herring (Sauvagella madagascariensis) fish species information

Scientific Name
Sauvagella madagascariensis

Common Name
Madagascar round herring

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 13-16; Anal spines: 0; Anal soft rays: 17 - 19; Vertebrae: 41 - 43. Body a little compressed, belly rounded, without pre-pelvic scutes, but a pelvic scute present with slender vertical arms. Gill rakers probably few. Last two anal fin rays not separate from others (cf. Spratellomorpha bianalis). Distinguished from other non-scuted clupeids in area (Spratelloides, Dussumieria, Etrumeus) by presence of normal pelvic scute (cf. W-shaped) (Ref. 188). Body depth 15.8-21.1% SL. Snout 26.2-33.7% HL (Ref. 33664). Scales are cycloid and easily shed (Ref. 56161). Two color forms, yellow and red or orange, have been noted in Sauvagella madagascariensis (Ref. 56161).

Classification

Classified By
Sauvage, 1883
Class
Ray-finned fishes (Actinopterygii)
Order
Herrings (Clupeiformes)
Family
Herrings, shads and sardines (Clupeidae)

Distribution

Region
Africa
Distribution
Africa: endemic to Madagascar.
Range
11°S - 26°S, 42°E - 50°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
pelagic
Environment
Freshwater; brackish; pelagic
Trophic Level
3.38 s.e. 0.39 Based on size and trophs of closest relatives
Occurs in Marine / Salt water
False
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
49.7 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial
Vulnerability
Moderate to high vulnerability (47 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Least Concern (LC)