Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina; brackvatten revassocierade; djupintervall 50 - 200 m (Ref. 47690). Subtropical; 32°N - 30°S, 30°E - 169°E
Indo-West Pacific: East Africa, as far south as Durban in South Africa, to southern Japan and northeastern Australia, east to New Caledonia.
Length at first maturity / Size / Vikt / Age
Maturity: Lm 14.0 range ? - ? cm
Max length : 30.0 cm TL hane/ej könsbestämd; (Ref. 47690); common length : 20.0 cm TL hane/ej könsbestämd; (Ref. 47690)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 3 - 4; Mjukstrålar i ryggfenan (totalt) : 40 - 45; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 30 - 33. This species is distinguished by its very deep body, almost triangular, extremely compressed; sharp-edged breast; greatest body depth below lateral line at least 4 times greater than greatest body depth above lateral line; anal fin very long-based, commencing at point of insertion of pelvic fins, uniformly very low; dorsal spines (X in juveniles) reducing in number with increasing age. Colour of body with upper sides deep metallic blue, the rest silvery, a row of round to ovoid, dark slaty-blue spots above and below lateral line, sometimes a few additional spots above and below these rows; pelvic fins with a trace of blue, other fins hyaline or slightly dusky (Ref. 47690).
Inhabits deeper coastal waters near the bottom on both the continental shelves and around major island groups; sometimes in river estuaries (Ref. 47690, 48635). Found in schools (Ref. 47690, 48635). Feeds on benthic invertebrates (Ref. 5213). Readily dries in air without salting (Ref. 4375, 48635). Caught in trawls and by beach seine, but mainly by trawling, often incidentally. Marketed fresh and dried (Ref. 47690). Minimum depth from Ref. 30573.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Heemstra, P.C., 1984. Menidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean fishing area 51. Vol. 3. (Ref. 3465)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 19.8 - 27.6, mean 24.4 °C (based on 503 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00836 - 0.05223), b=3.03 (2.81 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.5 ±0.41 se; based on food items.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.19-1.2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
Climate Vulnerability (Ref.
125649): Low to moderate vulnerability (33 of 100).
Nutrients (Ref.
124155): Calcium = 27.4 [11.6, 61.0] mg/100g; Iron = 0.484 [0.271, 0.908] mg/100g; Protein = 19.4 [18.2, 20.6] %; Omega3 = 0.205 [0.114, 0.368] g/100g; Selenium = 17.5 [7.8, 37.5] μg/100g; VitaminA = 43.9 [10.1, 182.5] μg/100g; Zinc = 0.868 [0.548, 1.324] mg/100g (wet weight);
