Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobionellinae
Etymology: Pomatoschistus: Greek, poma, -atos = cover, operculum + Greek, schistos = divided (Ref. 45335).
More on author: Risso.
Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal; depth range 20 - 70 m (Ref. 4696). Subtropical; 20°C - 28°C (Ref. 12468); 48°N - 35°N, 10°W - 42°E
Eastern Atlantic: Iberian Peninsula northwards to Bay of Biscay (Ref. 4343); Mediterranean, Black Sea and Sea of Azov; also Suez Canal.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm TL male/unsexed; (Ref. 50519); common length : 5.0 cm TL male/unsexed; (Ref. 50519); max. reported age: 2.00 years (Ref. 4696)
Found inshore, over sand. Enters brackish and hyper-saline waters. Feeds on small crustaceans and chironomid larvae (Ref. 4343).
Males clean the insides of bivalve shells and cover the outside with sand in preparation for the eggs that will be deposited by the female (Ref. 46373). Nesting males exhibit breeding colouration with four dark bars across side, a blue spot on the first dorsal fin and dark coloration on pelvic fins and edge of anal fin (Ref. 4696). Males defend the nest, cleaning and fanning the eggs until hatching (Ref. 27118).
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. 125652)
Threat to humans
Estimates based on models
Preferred temperature (Ref. 123201
): 10.3 - 17.3, mean 15.1 °C (based on 59 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00569 - 0.00967), b=3.06 (3.02 - 3.10), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.45 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; Assuming fec < 10,000).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (15 of 100).