Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري; المياه العذبة; مياه مخلوطة القاع; أسماك نازلة (Ref. 46888); نطاق العمق 2 - 15 m (Ref. 130217). Subtropical; 65°N - 12°N, 24°W - 36°E
Eastern Atlantic: Scandinavia and Iceland (Ref. 4537) south to Senegal and Cape Verde. Also Mediterranean Sea; southwestern Black Sea (Ref. 2058).
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 29.5 range ? - ? cm
Max length : 75.0 cm SL ذكر/ مختلط الجنس; (Ref. 35388); common length : 32.0 cm SL ذكر/ مختلط الجنس; (Ref. 7399); أعلا وزن تم نشرة: 4.5 kg (Ref. 35388); العمر: 25 سنين (Ref. 35388)
الأشواك الظهرية (المجموع): 5; الأشعة الظهرية الناعمة (المجموع): 7-9; شوكة شرجية 3; أشعه شرجية لينه: 8 - 9
Adults are found inshore in schools, frequently entering brackish lagoons and freshwater (Ref. 30578). They migrate occasionally tending to move northward in summer-time as temperatures rise. Females are larger than males (Ref. 59043). Adults feed mainly on benthic diatoms, epiphytic algae, small invertebrates and detritus (Ref. 2804), juveniles only feed on zooplankton (Ref. 59043). Oviparous (Ref. 205). Reproduction occurs in the sea during winter (Ref. 30578). Eggs and larvae pelagic. Utilized as a food fish (Ref. 4645).
Juveniles around 2.0 cm SL move to coastal lagoons and estuaries in April-June and return to sea in summer (Ref. 59043).
Thomson, J.M., 1986. Mugilidae. p. 344-349. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC; Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3573)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مصائد: تجاري; لعبة سمكه: نعم; حوض مائي: احواض مائية عامة
مزيد من المعلومات
المتعاونينصورStamps, Coins Misc.اصواتالتسمم باكل السمكسرعةنوع السباحةمنطقة الخياشيمعظمة الأذندماغرؤية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 8.8 - 20.1, mean 11 °C (based on 420 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00559 - 0.00939), b=3.11 (3.03 - 3.19), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (Ref.
69278): 2.6 ±0.32 se; based on food items.
Generation time: 5.8 (3.8 - 9.2) years. Estimated as median ln(3)/K based on 10
growth studies.
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (K=0.12-0.17; tm=3; tmax=25).
Fishing Vulnerability (Ref.
59153): High vulnerability (63 of 100).
Climate Vulnerability (Ref.
125649): Moderate to high vulnerability (51 of 100).
Nutrients (Ref.
124155): Calcium = 39.2 [10.7, 335.3] mg/100g; Iron = 0.623 [0.303, 1.151] mg/100g; Protein = 17.9 [16.5, 19.5] %; Omega3 = 0.399 [0.166, 0.964] g/100g; Selenium = 9.58 [3.60, 24.88] μg/100g; VitaminA = 7.52 [2.12, 24.93] μg/100g; Zinc = 0.571 [0.342, 0.951] mg/100g (wet weight); based on
nutrient studies.
