Thrattidion noctivagus, Sanaga pygmy herring

Thrattidion noctivagus Roberts, 1972

Sanaga pygmy herring
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Thrattidion noctivagus
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Classification / Names आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

ऐकटीनोप्टीरेजी (रेज़-फिन्नढ मछलियाँ) > Clupeiformes (Herrings) > Clupeidae (Herrings, shads, sardines, menhadens) > Dorosomatinae
Etymology: Thrattidion: Diminutive of Greek, thratta, -es = a kind of fish (Ref. 45335).  More on author: Roberts.

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

; स्वच्छ जल, अलवण जल पिलाजिक.   Tropical; 6°N - 3°N

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Africa: endemic to the Sanaga River at Edea, Cameroon (Ref. 188, 28136, 81631).

आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 2.1 cm SL पुल्लिंग / अलिंग; (Ref. 188)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण): 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 14-16; गुदा कांटा 0; ऐनल सौफट रेज़: 23 - 25. Diagnosis: Thrattidion noctivagus is distinguished from its congeners by the following characters: posterior supra-maxilla absent, belly rounded; prepelvic scutes 4 to 7, with lateral arms, but without keels; pelvic scute with 2 or 3 lateral arms; postpelvic scutes keeled and with arms; lower gillrakers 10 or 11; pelvic insertion well before dorsal fin, with 7 or 8 finrays; anal fin beginning under dorsal fin base (Ref. 188, 81631). The presence of scutes distinguishes it from Congothrissa gossei and the absence of a second supra-maxilla distinguishes it from all other West or central African pellonulines (Ref. 188).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Found in rivers, collected only at dusk and dawn in swiftly flowing water of about 1m just above the hydro-electric dam at Edea, Cameroon (Ref. 188). Feeds on plankton and some terrestrial insects (Ref. 188).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Teugels, G.G., 2007. Clupeidae. p. 186-204. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) The fresh and brackish water fishes of Lower Guinea, West-Central Africa. Volume I. Collection Faune et Flore tropicales 42. Institut de Recherche pour le Développement, Paris, France, Muséum National d’Histoire Naturelle, Paris, France, and Musée Royal de l’Afrique Centrale, Tervuren, Belgium. 800 pp. (Ref. 81631)

IUCN Red List Status (Ref. 120744)

  Data deficient (DD) ; Date assessed: 05 March 2018

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

मात्स्यिकी: कोई रुचि बग़ैर
FAO(Publication : search) | FishSource |

अधिक जानकारी

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Spawning aggregation
Fecundity
अंडे
Egg development
Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत
संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Mass conversion
सहयोगीयो
तस्वीरे
Stamps, Coins Misc.
ध्वनि
सिगुयटिरा
रफ्तार
तैरने के प्रकार
गिल क्षेत्र
Otoliths
दिमाग
दृष्टि

साधन

Special reports

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इंटरनेट स्रोत

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia(Go, खोज) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00449 - 0.01939), b=3.05 (2.88 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.42 se; Based on food items.
लौटाव (Ref. 120179):  ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .