Tanzania country information

Common names: Dagaa
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 2871, 5213.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tz.html
National Fisheries Authority: http://www.isp.msu.edu/AFRICANSTUDIES/PLEA/TAFIRI.HTM
Occurrences: Occurrences Point map
Main Ref: Whitehead, P.J.P., 1985
National Database:

Common names from other countries

Hareng gracile, Arenquillo de banda, Slender sprat, ... more

التصنيف / Names الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Spratelloididae (Small round herrings)
Etymology: Spratelloides: Old German, sprotte (1611) = a small fish, Clupea sp. + Greek, suffix, oides = similar to (Ref. 45335).
More on authors: Temminck & Schlegel.

Issue
The species in the genera Spratelloides Bleeker, 1851 and Jenkinsia Jordan & Evermann, 1896 should most probably be assigned to a separated family from Clupeidae and Dussumieriidae (Lavoué, pers. comm., July 2013). See a preliminary analysis in Lavoué et al. (2013: Ref. 93878).

Environment: milieu / climate zone / depth range / distribution range البيئة

بحري; نطاق العمق ? - 40 m (Ref. 86942). Tropical; 33°N - 30°S, 33°E - 136°W (Ref. 188)

التوزيع دول | مناطق الفاو | النظام البيئي | الظهور | Point map | مقدمة | Faunafri

Indo-Pacific, from Red Sea south to Tanzania and east to Samoa (excluding the Cook, Society and Marquesas islands) and the Tuamoto Islands, north to southern Japan and south to western Australia and Kermadec Islands.

Length at first maturity / الحجم / وزن / العمر

Maturity: L_m ?, range 4 - ? cm
Max length : 10.5 cm SL ذكر/ مختلط الجنس; (Ref. 54980)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

الأشواك الظهرية (المجموع) : 0; الأشعة الظهرية الناعمة (المجموع) : 12 - 13; شوكة شرجية: 0; أشعه شرجية لينه: 12 - 13. Maxilla toothed, triangular pre-maxillae, 2 supra-maxillae, second supra-maxilla asymmetrical (lower part larger than upper part), vertical striae on scales not meeting at center; W-shaped pelvic scute; few branchiostegal rays (6 or 7).

Usually an inshore schooling species, inhabiting relatively clear waters of coastal, lagoon, and seaward reefs (Ref. 11230). Relative fecundity is 1596 eggs per unit body weight (Ref. 4383). Caught with beach seines, purse seines, ringnets and dipnets. Marketed fresh or dried-salted (Ref. 5213). Used as bait in the tuna fishery.

Life cycle and mating behavior Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae

Oviparous (Ref. 205).

المرجع الرئيسي Upload your references | مراجع | المنظم | المتعاونين

Whitehead, P.J.P., 1985. FAO Species Catalogue. Vol. 7. Clupeoid fishes of the world (suborder Clupeoidei). An annotated and illustrated catalogue of the herrings, sardines, pilchards, sprats, shads, anchovies and wolf-herrings. FAO Fish. Synop. 125(7/1):1-303. Rome: FAO. (Ref. 188)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 28 February 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

Harmless

استخدامات بشرية

مصائد: غير مهمة تجارياً; طعم: usually

FAO(مصائد: الأنتاج; publication : search) | FishSource | البحر حولنا

مزيد من المعلومات

Trophic ecology
عناصر الغذاء
Diet compositions
Food consumptions
Food rations
مفتريسات

Ecology
البيئة
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
الطول- الترددات
Mass conversions
Recruitments
Abundances

Life cycle
التكاثر
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
حركة انتقال اليرقات

Distribution
دول
مناطق الفاو
النظام البيئي
الظهور
مقدمة
BRUVS - Videos

Anatomy
Gill areas
دماغ
عظمة الأذن

Physiology
Body compositions
Nutrients
Oxygen consumptions
نوع السباحة
Swimming speeds
Visual pigment(s)
أصوات الأسماك
Diseases / Parasites
Toxicities (LC50s)

Genetics
جيني
Electrophoreses
Heritabilities

Human related
Aquaculture systems
ملامح تربية الأحياء المائية
سلالات
Ciguatera cases
Stamps, coins, misc.

Outreach
المتعاونين

Taxonomy
الأسماء الشائعة
مرادفات
الوصف الخارجي
قياسات المظهر الخارجي
صور

References
مراجع

أدوات

تقارير خاصة

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صفحة الملخص | نقطة بيانات | الأسماء الشائعة | صور

مصادر علي الأنترنت

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00513 (0.00321 - 0.00820), b=3.11 (2.97 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

مستوى غذائي (Ref. 69278): 3.1 ±0.0 se; based on diet studies.

المرونه (Ref. 120179): عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (K=0.41-0.44; tm<1; Fec=505).

Prior r = 1.19, 95% CL = 0.78 - 1.78, Based on 1 data-limited stock assessment.

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Climate Vulnerability (Ref. 125649): High vulnerability (62 of 100).

فئة السعر (Ref. 80766): Low.

Spratelloides gracilis (Temminck & Schlegel, 1846)