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Mastacembelus polli Vreven, 2005

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drawing shows typical species in Mastacembelidae.

Tanzania country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Lake Tanganyika (Ref. 56055).
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: Vreven, E.J., 2005
National Database:

Common names from other countries

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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Synbranchiformes (Spiny eels) > Mastacembelidae (Spiny eels)
Etymology: Mastacembelus: Greek, mastax, -agos = bite + Greek, emballo = to throw oneself (Ref. 45335);  polli: Named in honor of Prof. Dr. Poll, a famous Belgian ichthyologist who pioneered ichthyological studies on Lake Tanganyika (Ref. 56055).

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の.   Tropical

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Africa: endemic to and widely distributed in Lake Tanganyika (Ref. 56055).

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm SL オス/雌雄の選別がない; (Ref. 56055)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 22 - 29; 背鰭 (合計) : 68 - 87; 肛門の骨: 2; 臀鰭: 70 - 98; 脊つい: 72 - 84. The species has protruding eyes, a small rostral appendage, a protruding lower jaw, a pointed caudal fin and a more elongated pectoral-fin shape (Ref. 56055). Posterior angle of lips is situated below the region from the middle from the eye up to a distance of about one-third of the diameter behind posterior border of eye (Ref. 56055). Upper corner of gill opening and dorsal edge of pectoral-fin base approximately at same level, clearly anterior to ventral edge of pectoral-fin base; dorsal edge of pectoral-fin base situated above upper corner of the gill opening (Ref. 56055). Lateral line continuous from posterior border of head up to one-third or half of distance between head and anus, discontinuous more posteriorly (Ref. 56055). Preanal length always shorter than postanal length; distance from anterior border of snout to last externally visible dorsal spine always longer than distance from anterior border of snout to last externally visible anal spine, and as a result origin of soft dorsal fin always posterior compared to origin of soft anal fin (Ref. 56055). Dorsal spines increasing in size from first to last (Ref. 56055). One well-developed, externally visible anal spine; a very small almost entirely reduced spine, hidden under the skin, can be present (Ref. 56055). Preopercular and preorbital spines are absent (Ref. 56055). It has a uniformly light brown overall background colour with numerous small, round, dark brown spots on the dorsal part of head, body and tail (Ref. 56055). Background colour lighter, more yellowish white on lips, ventral region of head, belly and most ventral part of tail (Ref. 56055). Pectoral fins whitish transparent without spots; dorsal, caudal and anal fins also whitish transparent (Ref. 56055).

生物学     用語集 (例 epibenthic)

Coastal in distribution; habitat is rocky bottom, flagstone, rock slides and pebbles (Ref. 56055).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

Vreven, E.J., 2005. Redescription of Mastacembelus ophidium Günther, 1893 (Synbranchiformes: Mastacembelidae) and description of a new spiny eel from Lake Tanganyika. J. Nat. Hist. 39(18):1539-1560. (Ref. 56055)

IUCNのレッドリストの状況は (Ref. 130435)

  評価されなかった 

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless




Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00122 - 0.00544), b=2.97 (2.79 - 3.15), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.6   ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).