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Pomatoschistus flavescens (Fabricius, 1779)

Two-spotted goby
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Image of Pomatoschistus flavescens (Two-spotted goby)
Pomatoschistus flavescens
Male picture by Svensson, A.

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

Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Pomatoschistus: Greek, poma, -atos = cover, operculum + Greek, schistos = divided (Ref. 45335).

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

Marine; brackish; reef-associated; non-migratory; depth range 0 - 5 m (Ref. 130216). Temperate; 71°N - 35°N, 10°W - 28°E

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

Eastern Atlantic: Faeroes, Vesterålen (Norway), and western Baltic to north-west Spain, excluding south-eastern North Sea. Reported from Estonia (Ref. 33247). Mediterranean reports, from Sicily and the Adriatic, require confirmation (Ref. 13729).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 4696); max. reported age: 2.00 years (Ref. 35388)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 7. Black spot on each side of the caudal peduncle. Males with a second similar spot behind each pectoral fin (Ref. 35388); eyes situated laterally; fully scaled; possess functioning suckers; caudal fins slightly notched (Ref. 92840).

Biology     Glossary (e.g. epibenthic)

Suprabenthic (Ref. 92840). Found inshore in groups around over-grown structures and among Laminaria or Zostera beds. Adults feed on small crustaceans (copepods, amphipods, mysids) and chaetognaths (Ref. 4696). Eggs are about 1 mm long, pear-shaped, and adhere to seagrass or weeds; hatch in 10 days (Ref. 4696). Pelagic larvae hatch at 2.5 mm length (Ref. 35388).

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

Repeat spawners (Ref. 4696). Eggs are found inside hollow Sacchoriza holdfasts or other smooth substrates (Ref. 4696). Nests of care-giving males contain eggs from several females (Ref. 115238).

Main reference Upload your references | References | Coordinator | Collaborators

Miller, P.J., 1986. Gobiidae. p. 1019-1085. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. Volume 3. UNESCO, Paris. (Ref. 4696)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 12 March 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
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Ecology
Ecology
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Length-weight rel.
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BRUVS - Videos
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References

Tools

Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Common names | Photos

Internet sources

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

Estimates based on models

Preferred temperature (Ref. 123201): 8.9 - 13.1, mean 10.5 °C (based on 408 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00295 - 0.01623), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.34 se; based on food items.
Generation time: 1.2 ( 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 (tm=1; tmax=2).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (14 of 100).
Nutrients (Ref. 124155):  Calcium = 61.3 [20.5, 146.3] mg/100g; Iron = 0.297 [0.120, 0.673] mg/100g; Protein = 18.3 [16.2, 20.1] %; Omega3 = 0.295 [0.113, 0.711] g/100g; Selenium = 5.23 [1.67, 19.78] μg/100g; VitaminA = 101 [19, 517] μg/100g; Zinc = 1.36 [0.77, 2.33] mg/100g (wet weight);