Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Agonidae
(Poachers) > Agoninae
Etymology: Agonus: Greek, a = without + Greek, gonos = race, generation (Ref. 45335).
Environment / Climate / Range
Marine; demersal; depth range 0 - 270 m (Ref. 58496). Temperate; 4°C - 8°C; 77°N - 43°N, 42°W - 36°E
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 21.0 cm TL male/unsexed; (Ref. 4700); common length : 14.0 cm TL male/unsexed; (Ref. 4700); max. reported age: 3 years (Ref. 722)
(total): 5 - 6;
soft rays: 5 - 7. Unpaired breast row of plates absent, but paired plate rows cover whole breast. Snout with a pair of strong spiny hooks; numerous barbels on branchiostegal membranes. Dorsal plates 31-34 (Ref. 232). Spiny and soft dorsal fins almost fused. No spines on the hind part of the head (Ref. 35388).
Northeast Atlantic: English Channel to Finmarken and Murman coasts and White Sea, also the Shetlands, the Faroes and southern and southwestern coasts of Iceland; southern part of Baltic.
Inhabits inshore waters, deeper waters in winter in Skaggerak, preferring sandy bottoms, rarely with stones. Maximum depth reported at 270 m (Ref. 28197). Temp. range: 4.0-8.0 °C. Feeds on bottom crustaceans and polychaetes. Matures after about 1 year; a few spawning in the second year (Ref. 722). The eggs are laid in seaweed (Ref. 9900). Spawns in February - April, female laying 2,500-3,000 yellow eggs with a diameter of 2 mm. Period of development is very long and 6-8 mm long pelagic larvae hatch after 10-11 months (Ref. 35388).
Ehrenbaum, E., 1936. Naturgeschichte und wirtschaftliche Bedeutung der Seefische Nordeuropas. Handb. Seefisch. Nordeurop. 2:337 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: of no interest; aquarium: public aquariums
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00913 (-0.19537 - 0.21364), b=2.89 (2.79 - 3.00), based on LWR estimates for species & family-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.5 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.47; tm=1-4; tmax=3; Fec=2,400).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .