分類 / Names
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Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Smiliogastrinae
Etymology: Enteromius: Greek, enteron = intestine + Greek, myo, mys = muscle (Ref. 45335); alberti: Probably, the species epithet alberti is derived from the name of the former 'Parc National Albert', now Virunga National Park, in which the type locality is located (Ref. 127947).
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
Africa: river systems throughout the Lake Edward basin and Lake Victoria basin (Ref. 27628, 127947).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 7.4 cm SL オス/雌雄の選別がない; (Ref. 127947)
簡単な記述
形態学 | 形態計測学
背面の脊椎 (合計): 0; 背鰭 (合計): 10-12; 肛門の骨 0; 臀鰭: 8 - 9. Diagnosis: Enteromius alberti belongs to the group of species of Enteromius with a flexible last unbranched dorsal fin ray that lacks serrations along its posterior edge (Ref. 127947). It can easily be distinguished from the other species of this group from the East Coast and Nilo-Sudan ichthyofaunal regions by the following combination of characteristics: a complete lateral line vs. an incomplete lateral line in E. atkinsoni, E. pumilus, E. serengetiensis, E. tongaensis and E. toppini; two pairs of barbels vs. one pair in E. pseudotoppini, and no barbels in E. anema and E. profundus; one to three dark spots on the flanks, which sometimes fuse into a mid-lateral line in preserved specimens, starting posterior to the operculum vs. a dark line running from the tip of the snout to the caudal fin base in E. bifrenatus and E. yongei, and a thin dark line from the beginning of the operculum to the caudal fin base in E. viviparus; 12 scales around the caudal peduncle, with one aberrant specimen with 16, vs. 8 in E. leonensis, 9-10 in E. venustus, and 10 in E. magdalenae and E. yeiensis; 4.5 scales between the dorsal fin base and the lateral line vs. 3.5 in E. radiatus, 5.5 in E. unitaeniatus, and 6 in E. usambarae; a dorsal fin length which is larger than the head length vs. a dorsal fin length equal to the headclength in E. innocens; a body depth which is larger than the head length vs. a body depth which is equal to the head length in E. nigeriensis and E. trispilopleura; a pectoral fin length which is 5/6 of the head length vs. 3/4 in E. lineomaculatus, and 2/3 to 3/4 in E. neglectus; a maximum caudal peduncle depth which is 3/5 of the head length vs. 2/5 in E. quadripunctatus (Ref. 127947). Enteromius alberti differs from E. perince by a combination of a smaller body depth, 21.7-31.2% of standard length vs. 33.8-37.5%; a smaller minimum caudal peduncle depth, 10.0-13.6% of standard length vs. 15.0-16.4%; and a smaller maximum caudal peduncle depth, 11.8-15.5% of standard length vs. 17.7-19.4%; it differs from E. stigmatopygus by a combination of a higher number of lateral line scales, 27-34 vs. 20.25; a smaller predorsal distance, 45.7-51.3% of standard length vs. 51.9-55.8%; and a smaller pre-occipital distance, 16.6-21.8% of standard length vs. 22.1-27.3%; it differs from E. mimus by a higher number of lateral line scales, 27-34 vs. 24-27; a smaller preanal distance, 65.1-73.0% of standard length vs. 68.4-74.8%; a larger post-anal distance, 16.3-24.2% of standard length vs. 16.3-19.3%; a smaller body depth, 21.7-31.2% of standard length vs. 26.5-34.3%; a smaller head depth, 15.1-19.0% of standard length vs. 17.8-21.8%; and a smaller pelvic fin length, 15.0-20.9% of standard length vs. 18.2-22.4% (Ref. 127947). Specimens of E. alberti differ from the population of E. cf. mimus from the Lake Edward system by a smaller head depth; in general, a specimen with a head depth smaller than 19% of the standard length can be assigned to E. alberti, specimens with a head depth larger than 19% of the standard length can be assigned to E. cf. mimus; other characters are the higher number of lateral line scales, 27-34 vs. 21-31, the smaller interorbital width, 5.8-8.3% of standard length vs. 6.9-9.9, the smaller pre-pelvic distance, 44.8-53.3% of standard length vs. 48.4-55.4%, the smaller body depth, 21.7-31.2% of standard length vs. 23.5-35.8%, the smaller maximum caudal peduncle depth, 11.8-15.5% of standard length vs. 8.7-19.0%, the smaller minimum caudal peduncle depth, 10.0-13.6% of standard length vs. 7.1-15.9%, and the smaller head width, 10.4-14.2% of standard length vs. 11.6-14.5% (Ref. 127947).
This species may be anadromous but with permanent populations in the upper reaches of larger rivers (Ref. 104796). Feeds on insects, but algae and debris are also taken (Ref. 12523).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Maetens, H., M. Van Steenberge, J. Snoeks and E. Decru, 2020. Revalidation of Enteromius alberti and presence of Enteromius cf. mimus (Cypriniformes: Cyprinidae) in the Lake Edward system, East Africa. Eur. J. Taxon. 700:1-28. (Ref. 127947)
Human uses
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
用具
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref.
69278): 3.0 ±0.3 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).
