Gobiusculus flavescens, Two-spotted goby

Gobiusculus flavescens (Fabricius, 1779)

Two-spotted goby
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Gobiusculus flavescens   AquaMaps   Data sources: GBIF OBIS
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Image of Gobiusculus flavescens (Two-spotted goby)
Gobiusculus flavescens
Male picture by Svensson, A.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterigi (pesci con pinne raggiate) > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobiinae
Etymology: Gobiusculus: Diminutive of Latin, gobius = gudgeon (Ref. 45335).

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

; marino; salmastro associati a barriera corallina; non migratori; distribuzione batimetrica 0 - ? m.   Temperate; 71°N - 35°N, 10°W - 28°E

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | 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 / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL maschio/sesso non determinato; (Ref. 4696); Età massima riportata: 2 anni (Ref. 35388)

Short description Morfologia | Morfometria

Raggi dorsali molli (totale): 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).

Biologia     Glossario (es. 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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

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 | Bibliografia | Coordinatore | Collaboratori

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. 120744)

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

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Informazioni ulteriori

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Ecologia
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Length-weight
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Length-frequencies
Morfometria
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Estimates based on models

Preferred temperature (Ref. 115969): 8.9 - 13.1, mean 10.5 (based on 408 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00267 - 0.01297), b=3.10 (2.91 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-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.
Resilienza (Ref. 120179):  Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (tm=1; tmax=2).
Vulnerability (Ref. 59153):  Low vulnerability (14 of 100) .