Actinopteri (ray-finned fishes) > Eupercaria/misc
(Various families in series Eupercaria) > Sillaginidae
Etymology: Sillago: From a locality in Australia .
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; oceanodromous (Ref. 51243); depth range 1 - 180 m (Ref. 6205), usually ? - 80 m (Ref. 27575). Temperate; 25°S - 44°S, 133°E - 157°E (Ref. 6205)
Western Pacific: southern Queensland to Anxious Bay, South Australia, and the east coast of Tasmania.
Length at first maturity / Size / Weight / Age
Maturity: Lm 14.5, range 14 - 16 cm
Max length : 32.0 cm TL male/unsexed; (Ref. 6335); max. reported age: 7 years (Ref. 27578)
soft rays: 18 - 20;
Vertebrae: 32 - 34. Coloration is very similar to S. bassensis. No dark spot at the base of the pectoral fin; a series of oblique rusty brown bars on back and upper sides, with a longitudinal row of rusty brown blotches along the midlateral silver stripe.
Live close to the sea bed over sandy substrates. They normally inhabit depths from the surf zone to 80 m (Ref. 27575), although small catches have been taken from deeper water (Ref. 6335). Juveniles congregate in shallow water where they may be taken by line in large quantities. Feed mainly on crustaceans, amphipods, decapods, mysids and copepods. Juveniles consume mostly copepods (Ref. 6223). Oviparous (Ref. 205). Spawn from October to March in southern New South Wales but spawn in winter in southeast Queensland and northern New South Wales (Ref. 6205).
It is likely that this species spawn more than once during the spawning period, and that some eggs are resorbed by females at the end of the spawning season (Ref. 27577).
McKay, R.J., 1992. FAO Species Catalogue. Vol. 14. Sillaginid fishes of the world (family Sillaginidae). An annotated and illustrated catalogue of the sillago, smelt or Indo-Pacific whiting species known to date. Rome: FAO. FAO Fish. Synop. 125(14):87p. (Ref. 6205)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: highly commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 14.1 - 20.1, mean 15.4 °C (based on 166 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00359 - 0.02015), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.43 se; based on food items.
Generation time: 2.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.46(?); tm=2; tmax=7; Fec=30,000).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (31 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .