Tanzania country information

Common names: Dole
Occurrence: misidentification
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Eccles, D.H., 1992
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Reported from Lake Nyasa [=Lake Malawi] (Ref. 2, 4967), however it has never been positively recorded north of Nkhotakota in Malawi (Ref. 118638). Reports from Lake Chungruru (Ref. 2, 4967, 54852) and Lake Kingiri (Ref. 2, 54852) are believed to have been the result of misidentification of emaciated spent individuals of Oreochromis chungruruensis and juvenile Oreochromis squamipinnis respectively (Ref. 118638). There is no evidence that this species was ever native in Tanzania (Ref. 118638).
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: Genner, M.J., G.F. Turner and B.P. Ngatunga, 2018
National Database:

Common names from other countries

Chambo chachimuna, 利多孵非鲫, Dole, ... more

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

> Cichliformes (Cichlids, convict blennies) > Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Trewavas.

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

; 新鮮な水底生の漂泳性; 深さの範囲 30 - 100 m (Ref. 4967). Tropical; 8°S - 15°S

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Africa: Lake Malawi (Ref. 2, 5166, 118630). Reports from Lake Chungruru (Ref. 2, 54852) and Lake Kingiri (Ref. 2, 54852) are misidentifications of Oreochromis chungruruensis and juvenile Oreochromis squamipinnis respectively (Ref. 118638).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: L_m 29.9, range 24 - 37 cm
Max length : 38.0 cm SL オス/雌雄の選別がない; (Ref. 4967)

簡単な記述検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 14 - 17; 背鰭 (合計) : 10 - 11; 肛門の骨: 3; 臀鰭: 8 - 10; 脊つい: 30 - 32. Diagnosis: breeding male black; length of head 34.4-42.4% SL; length of lower jaw 31.3-40.0% head length (Ref. 2). Teeth of jaw in 3-4, rarely 5 rows (Ref. 2,6150). Lower pharyngeal bone with restricted toothed area; median length of bone 33.0-40.7 % length of head and 1.3-1.5 times its own width; blade 1.9-3.9 times median length of toothed area (Ref. 2).

Occurs in all kinds of habitats but is mainly found in open water away from the coast (Ref. 5595). The most pelagic of the Lake Malawi Oreochromis species (Ref. 2, 87, 4364, 4916, 4967). Forms schools (Ref. 2, 2781). Feeds on phytoplankton (Ref. 2, 87, 5595, 10402, 42295, 52161). Female mouthbrooder (Ref. 2). It is suspected that Oreochromis lidole is now globally extinct, as it has not been positively recorded since 2007 (Ref. 118638).

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

Seems to be sexually mature at a smaller size in Lakes Chungruru and Kingiri than in Lake Malawi (Ref. 2, 54852). Spawns off clean sandy or rocky shores (Ref. 2, 87, 2781) in deeper water (Ref. 2, 87, 2781, 5595, 6150, 40193). Territorial males build a large (Ref. 5595, 40193, 55079) sand-castle nest, with a characteristic spawning cone in its center (Ref. 2, 5595). Females congregate in schools that may number hundreds of individuals (Ref. 2, 2781, 5595). The male genital tassel, which develops together with the breeding dress and imitates a clutch of eggs, is dragged through the nest after the females has deposited some eggs, which are picked up immediately; the female probably mistakes the tassel for eggs that have been forgotten and tries to collect them as well, which results in the eggs being fertilized (Ref. 5595). Females carrying eggs in the mouth move into open, more eutrophic waters, and stay there until the young have almost lost the yolk sac; they feed little during this time (Ref. 2781). Females brood eggs/young, guarding their fry until about 52(-58)mm (Ref. 2, 2781). Females move inshore with their young for at least part of the day; the young are spat out to feed, and food (small phytoplankton) is found in the foregut before the involuted yolk-sac is fully absorbed (Ref. 2781).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Kullander, Sven O. | 協力者

Trewavas, E. and G.G. Teugels, 1991. Oreochromis. p. 307-346. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Checklist of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5166)

IUCNのレッドリストの状況は (Ref. 130435)

絶滅寸前の危機的状況 (CR) (A2d); Date assessed: 20 June 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

Harmless

Human uses

水産業: 商業; 水族館・水槽: 商業

FAO(Publication : search) | FishSource |

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インターネットの情報源

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=0.01380 (0.00701 - 0.02716), b=2.97 (2.81 - 3.13), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

栄養段階 (Ref. 69278): 2.3 ±0.22 se; based on food items.

回復力 (Ref. 120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (K=0.18-0.52; tm=3).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).

価格帯 (Ref. 80766): Unknown.

Oreochromis lidole (Trewavas, 1941)

Common names from other countries

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

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

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

Length at first maturity / サイズ / 重さ / 年齢

簡単な記述検索表 | 形態学 | 形態計測学

生物学用語集 (例 epibenthic)

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 : Kullander, Sven O. | 協力者

IUCNのレッドリストの状況は (Ref. 130435)

CITES (Ref. 128078)

CMS (Ref. 116361)

人間に対する脅威

Human uses

より多くの情報

用具

特記事項

XMLをダウンロードして下さい

インターネットの情報源

Estimates based on models

Oreochromis lidole (Trewavas, 1941)

Common names from other countries

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

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

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

Length at first maturity / サイズ / 重さ / 年齢

簡単な記述 検索表 | 形態学 | 形態計測学

生物学 用語集 (例 epibenthic)

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 : Kullander, Sven O. | 協力者

IUCNのレッドリストの状況は (Ref. 130435)

CITES (Ref. 128078)

CMS (Ref. 116361)

人間に対する脅威

Human uses

より多くの情報

用具

特記事項

XMLをダウンロードして下さい

インターネットの情報源

Estimates based on models

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

簡単な記述検索表 | 形態学 | 形態計測学

生物学用語集 (例 epibenthic)