You can sponsor this page

Economidichthys trichonis Economidis & Miller, 1990

Trichonis dwarf goby
Upload your photos and videos
Google image
Image of Economidichthys trichonis (Trichonis dwarf goby)
No image available for this species;
drawing shows typical species in Gobiidae.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Economidichthys: Greek, oikonomos = manager of a household, steward (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; depth range ? - 15 m (Ref. 59043). Temperate; 39°N - 38°N

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

Europe: endemic to the oligotrophic Lake Trichonis, western Greece.

Length at first maturity / Size / Weight / Age

Maturity: Lm 1.8  range ? - ? cm
Max length : 3.0 cm TL male/unsexed; (Ref. 12215); 2.7 cm TL (female); max. reported age: 1.75 years (Ref. 59043)

Short description Identification keys | Morphology | Morphometrics

Anal spines: 1; Anal soft rays: 9 - 11; Vertebrae: 30 - 31. Body pale, with long vertical stripes in both sexes, some over 2/3 body depth; perianal organ small, less than half length of pelvic disc; pelvic anterior membrane depth about half pelvic spine length in ventral midline; body with well spaced scales in single series along lateral midline, and otherwise naked except on caudal peduncle and side of anterior abdomen; typical D2 I/10-11; interorbit with two transverse rows of sensory papillae.

Biology     Glossary (e.g. epibenthic)

With a mature female at 18 mm SL, this is the smallest European freshwater fish; 2.1 mm at hatching its larvae are the smallest free-living European vertebrates. Found in areas covered by aquatic vegetation, in reed stands; in sheltered bays down to 15 m (Ref. 59043); at the mouth of tributary streams and has been observed in small shoals near the surface, over open areas of gravel or stones (Ref. 26100). Feeds on invertebrates, mainly on cladocerans and larvae of mussel Dreissena polymorpha during the spawning season. Spawns after first winter, from February to May, with eggs (0.7 x 0.6 mm) deposited in a cavity (usually inside standing, broken reeds); these are cleaned and guarded by the male. A single nest may occupy up to 2000 eggs spawned by several females; with females spawning at least twice during the season. Eggs hatch in about a day, the larvae living on the surface layer, near shore, and after yolk absorption, live in deeper layers or near bottom, moving upward at night. Maximum known age is 21 months. Land reclamation, lake level fluctuations resulting to water abstraction and pollution threaten survival of this species (Ref. 59043).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Eggs are spawned in a cavity; they are cleaned and guarded by the male (Ref. 59043). A single nest is usually occupied by up to 2000 eggs spawned by several females. Females spawn at least twice during a season (Ref. 59043).

Main reference Upload your references | References | Coordinator | Collaborators

Miller, P.J., 1990. The endurance of endemism: the Mediterranean freshwater gobies and their prospects for survival. J. Fish Biol. 37(Suppl.A):145-156. (Ref. 12215)

IUCN Red List Status (Ref. 130435)

  Endangered (EN) (B1ab(ii,iii)+2ab(ii,iii)); Date assessed: 31 January 2006

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures
References
References

Tools

Special reports

Download XML

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.37 se; based on food items.
Generation time: 0.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).