You can sponsor this page

Nannatherina balstoni  Regan, 1906

Balston's pygmy perch
Upload your photos and videos
Pictures | Google image
Image of Nannatherina balstoni (Balston\
Nannatherina balstoni
No image available for this species;
drawing shows typical fish in this Family.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Percichthyidae (Temperate perches)
Etymology: Nannatherina: Latin, nannus = small + Greek, atherina, the Greek name for the eperlane; 1770 (Ref. 45335).   More on author: Regan.

Environment / Climate / Range Ecology

Freshwater; benthopelagic; pH range: 6.0 - 6.5; dH range: 5 - 10.   Temperate; 15°C - 30°C (Ref. 2060); 31°S - 34°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Oceania: coastal drainages of southwest Australia between Two People Bay (near Albany) and the Blackwood River. Also reported from the Goodga River to Gin Gin Brook, western Australia (Ref. 7300).

Length at first maturity / Size / Weight / Age

Maturity: Lm 5.7  range ? - ? cm
Max length : 9.0 cm SL male/unsexed; (Ref. 44894); 9.0 cm TL (female); common length : 6.0 cm SL male/unsexed; (Ref. 44894); max. reported age: 3 years (Ref. 41789)

Biology     Glossary (e.g. epibenthic)

Is the rarest of all the endemic freshwater fishes of southwestern Australia. Inhabits coastal streams, lakes, ponds and swamps, where the water is dark and acidic (pH as low as 3.0) and has a large seasonal fluctuation in temperature (11-30°C) (Ref. 27892, 44894). Favors shallow water and is commonly found in association with tall sedge thickets (Ref. 44894). Larva feeds mainly on cladocerans, copepods and dipteran larvae, while juveniles and adults ingest mostly terrestrial fauna (Ref. 6398, 44894). Breeds in the middle of winter in response to flooding. Female lays between 500-1600 eggs each. The majority of adult perishes shortly after spawning at the end of their first year (Ref. 44894). Both male and female attain sexual maturity at the end of their first year of life when they have attained an average TL of 6.0 and 6.3 cm respectively (Ref. 27892). Co-occurs with Edelia vittata over part of its range, but is generally more scarce (Ref. 5259, 44894). Aquarium conditions: pH=7.2, H=8, 24°C water temperature, rock and plant cover, carnivore, peaceful community fish, egg layer (Ref. 6398).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Arratia, Gloria | Collaborators

Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

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

Tools

Special reports

Download XML

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.1   ±0.1 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; K=1.31-1.69; Tmax=3; mean Fec=1243;).
Prior r = 0.68, 2 SD range = 0.25 - 1.89, log(r) = -0.39, SD log(r) = 0.51, Based on: 1 K, 2 tgen, 1 tmax, 4 Fec records
Vulnerability (Ref. 59153):  Low vulnerability (11 of 100) .