分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Petromyzonti >
Petromyzontiformes (Lampreys)
七鰓鰻目 (Lampreys) >
Petromyzontidae (Northern lampreys)
七鰓鰻科 (Northern lampreys) > Lampetrinae
Etymology: Lampetra: lambo (L.), to lick; petra (Gr.), rock or stone, referring to their suctorial behavior (adults attach to rocks during nest building and mating). (See ETYFish); zanandreai: In honor of Giuseppe Zanandrea (1907-1965), Istituto di Anatomia Comparata della Università di Bologna, “who made several interesting biometrical and biological studies of lampreys from northern Italy”. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; 非遷移的. 溫帶; 5°C - 20°C (Ref. 12320); 47°N - 44°N, 9°E - 15°E
Europe: Alpine slope of Po to Soca drainages (Italy, Switzerland, Slovenia), Esino and Potenza drainages on Adriatic coast of Central Italy; Mirna (Croatia) and Neretva drainage (Bosnia-Herzegovina, Croatia).
歐洲: 義大利，克羅埃西亞與斯洛維尼亞。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 14.0, range 8 - 20 cm
Max length : 26.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 59043); 最大年齡: 6 年 (Ref. 12320)
簡短描述
型態特徵 | 形態測量圖
Adults: 11.8-15.6 cm TL. Body proportions, as percentage of TL (based on 19 specimens measuring 11.8-15.6 cm TL): prebranchial length, 10.2-13.7; branchial length, 9.3-11.9; trunk length, 45.5-52.6; tail length, 24.0-28.7; eye length, 1.6-2.5; disc length, 4.6-6.9. Urogenital papilla length, as a percentage of branchial length, in six spawning males measuring 12.8-13.9 cm TL, 23.5-40.0. Trunk myomeres, 54-60. Dentition: supraoral lamina, 2 unicuspid teeth; infraoral lamina, 5-8 unicuspid teeth, usually 7; three endolaterals on each side; endolateral formula, typically 2-3-2 (2-2-2 in the holotype); 2 rows of anterials; first row of anterials, 4 unicuspid teeth; 0-1 row of exolaterals on each side; single incomplete row of posterials with 2-5 unicuspid teeth (2 in the holotype); transverse lingual lamina, 5-7 unicuspid teeth, the median one enlarged; longitudinal lingual laminae each with about 6 or 7 unicuspid teeth. Velar tentacles, 3-5, with tubercles. Body coloration (preserved), dorsal and lateral aspects grayish, ventral surface whitish, dorsal fins and caudal fin yellowish. No dark blotch near the apex of the second dorsal fin. Lateral line neuromasts unpigmented. Caudal fin shape, spade-like.
Freshwater (Ref. 89241, 12320). Occurs in clean, cold water usually near springs in the foot-hill zone, over muddy or sandy bottom (Ref. (Ref. 12320). Ammocoetes inhabits detritus-rich sands or clay sediments (Ref. 59043). They are filter bottom-feeders. Metamorphosis takes place after 4.5 years (Ref. 12320). Short-lived, non-parasitic (Ref. 12320, 89241). Reproduction takes place from January to June. Its existence is threatened by habitat destruction and water abstraction (Ref. 26100).
一種生命期短的, 通常出現於冷且乾淨的水中靠近泉水在砂質底部上淺水帶的非寄生的淡水小溪八目鰻。 Ammocoetes 是底部濾食者。 銳變在 4.5 年之後發生。 (參考文獻 12320) 繁殖發生從一月到六月。 它的生存被受到威脅的由於棲息地破壞與水資源減少。 (參考文獻 26100)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
歐洲: 義大利，克羅埃西亞與斯洛維尼亞。
Bianco, P.G., 1986. Lethenteron zanandreai (Vladykov, 1955). p. 237-246. In J. Holcík (ed.) The freshwater fishes of Europe. Vol. 1, Part 1. Petromyzontiformes. (Ref. 12320)
人類使用
漁業: 沒有興趣; 誘餌: occasionally
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00056 - 0.00284), b=2.99 (2.80 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.5 ±0.37 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (tm=5; tmax=5.5; Fec=2,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
