Congo (Kinshasa) country information

Common names: [No common name]
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Microthrissa whiteheadi: 'Nyonga, Zaire (8°39'S-26°18'E)' (Ref. 46514). Known from Middle and Upper Congo River basin (Ref. 47399), especially from Ubangui River (Ref. 46514, 47399), Uélé River (Ref. 46514, 47399), Lualaba River (Ref. 46514, 47399) and Upper Lualaba River (Ref. 46514, 47399).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Gourène, G. and G.G. Teugels, 1989
National Database:

Common names from other countries

怀氏小棱鲱, Sleďovka whiteheadova, Whiteheadi väiketrissa, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Clupeiformes (Herrings) > Dorosomatidae (Gizzard shads and sardinellas)
Etymology: Microthrissa: Grek, mikros = small + Greek, thrissa, -es = shad (Ref. 45335); whiteheadi: Named in honor of Dr. P.J.P. Whitehead of the British Museum (Natural History), London, whose numerous publications on clupeoid fishes have contributed substantially to our knowledge of this group (Ref. 46514).

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

; пресноводный пелагический. Tropical; 10°N - 10°S

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Africa: Middle and Upper Congo River system in Democratic Republic of the Congo (Ref. 46514, 47399).

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 5.7 cm SL самец/пол неопределен; (Ref. 46514)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 11 - 14; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 20 - 25; позвонки: 39 - 40. Diagnosis: Body moderately deep, its depth about 28-37% of standard length; scutes keeled, 1 or 2 before base of first pectoral fin ray, 13-16 pre-pelvic and 5-9 post-pelvic scutes; snout rounded; lower jaw not or slightly projecting, with small teeth limited to anterior part; pre-maxilla lacking a medial notch and with 32-40 small conical teeth directed inwards; maxilla blade slender, more than 5 times as long as deep, lower edge bordered with minute conical teeth; posterior supra-maxilla about as long as maxilla blade, its shaft as long as its blade; lower gillrakers 14-18 (Ref. 46514, 47399). Also characterized by 35-39 scales in a longitudinal series and anal fin with 20-25 rays (Ref. 46514, 47399). Closely related to Microthrissa royauxi and distinguished from this species by the shape of the pre-maxillary, the medial notch as found in M. royauxi is absent in M. whiteheadi, and the latter also has 32-40 pre-maxilla teeth vs. 16-26 in M. royauxi (Ref. 46514). It is distinguished from Microthrissa minuta by a higher number of teeth on the pre-maxilla, 32-40 vs. 12-30 in M. minuta; and additionally by a lower number of lower gillrakers, 14-18 vs. 18-22, a higher number of anal fin rays, 20-25 vs. 18-21, and a higher number of pre-pelvic scutes, 13-16 vs. 11-12 (Ref. 46514, 47399).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Основная ссылка Upload your references | ссылки | координатор | соавторы

Gourène, G. and G.G. Teugels, 1989. Révision systématique du genre Microthrissa Boulenger, 1902 des eaux douces africaines (Pisces, Clupeidae). Rev. Hydrobiol. Trop. 22(2):129-156. (Ref. 47399)

Статус Красного Списка МСОП (Ref. 130435)

Не вызывающий беспокойства (LC) ; Date assessed: 16 February 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00912 (0.00433 - 0.01920), b=3.04 (2.87 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.3 se; based on size and trophs of closest relatives

устойчивость к внешним воздействиям (Ref. 120179): высокий, минимальное время удвоения популяции до 15 месяцев (Preliminary K or Fecundity.).

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

Microthrissa whiteheadi Gourène & Teugels, 1988