Smoothbelly pellonuline (Congothrissa gossei) fish species and information / pictures of Smoothbelly pellonuline - Congothrissa gossei

Smoothbelly pellonuline (Congothrissa gossei) fish species information

Scientific Name
Congothrissa gossei

Common Name
Smoothbelly pellonuline

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 12-18; Anal spines: 0; Anal soft rays: 16 - 27. Pre- and post-pelvic scutes lacking (pelvic scute present, tips of its lateral arms bifurcated). Jaws about equal, with fine teeth; no second supra-maxilla; branchiostegal rays 3 or 4. Scales large. Occurs with other pellonulines, but the smoothly rounded belly, absence of spiny post-pelvic scutes and lack of a second supra-maxilla makes it unmistakable.

Classification

Classified By

Poll, 1964

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Herrings, shads and sardines (Clupeidae)

Distribution

Region

Africa

Distribution

Africa: Central part of Congo system (around Kisangani area and also Ubangui River at Bangui and upstream).

Range

7°N - 2°S

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; pelagic

Trophic Level

3.33 s.e. 0.47 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

3.5 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

Fisheries: subsistence fisheries

Vulnerability

Low vulnerability (10 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)