Gadopsis marmoratus Richardson, 1848

River blackfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Perciformes \| Percichthyidae
Synonyms	... more
Common names	Süßwasserdorsch, 鳕鲈, Tasmanian blackfish, ... more

You can sponsor this page

Upload your photos and videos
| All pictures | Google image |

Image of Gadopsis marmoratus (River blackfish)

Picture by Aland, G.

Add your observation in Fish Watcher

No AquaMaps available for this species.

Main reference

Allen, G.R. 1989. (Ref. 5259)
Other references | Biblio | Coordinator : Arratia, Gloria | Collaborators

Size / Weight / Age

Max length : 60.0 cm TL male/unsexed; (Ref. 5259); common length : 30.0 cm TL male/unsexed; (Ref. 5259)

Environment

Benthopelagic; freshwater

Climate / Range

Temperate; 5°C - 20°C (Ref. 2060)

Oceania: endemic to south-eastern Australia, including Tasmania (Ref. 5259). Mictochodrial 12S rRNA sequences support that G. marmoratus complex consists of two northern and southern forms (Ref. 54370).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Lives in clear, flowing streams with abundant cover (Ref. 5259, 44894). Prefers streams with gravel bottoms and abundant snags. Also occurs in lakes and reservoirs (Ref. 5259). Tolerant of slightly brackish conditions (10 p.p.t.) in the tidal reaches of rivers, and a temperature range of 5°-25°C. Home-ranging; remaining within about a 20-30 meters stretch of water throughout the life span (Ref. 44894). Feeds on insects, crustaceans and small fishes (Ref. 5259) ; also on mollusks (Ref. 2156). The spawning season runs from November to January. A popular angling species in the south, but large fish are rare. Highly susceptible to overfishing, due to its home-ranging behavior and low fecundity (Ref. 44894). Flesh is oily and not very good eating.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: subsistence fisheries; gamefish: yes; aquarium: public aquariums


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| E-book \| Field guide \| Length-frequency wizard \| Life-history tool \| Point map

Special reports
Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

Download XML
Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (55 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Ortañez, Auda Kareen

Back to Search

Fish Forum

Comments & Corrections

Sign our Guest Book

FishBase mirror site : US - CGNET

Page last modified by : elaxamana, 15 July 2009

Custom Search