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Petromyzontiformes (Lampreys) >
Petromyzontidae (Northern lampreys) > Lampetrinae
Etymology: Caspiomyzon: Caspio, from the Caspian Sea basin, where C. wagneri is endemic; myzon (Gr.), to suck (borrowed from Petromyzon), referring to their suctorial behavior (See ETYFish); hellenicus: -icus, (Gr.) belonging to: Hellas (Gr.), Greece, referring to only country where it occurs (See ETYFish).
Taxonomic Remarks
Renaud and Economidis (2010) found that Eudontomyzon hellenicus is restricted to the Strymon River Basin, Aegean Sea Basin and that the Eudontomyzon species found in the Loúros River Basin, Ionian Sea Basin, is a different and new species, E. graecus (Ref. 89241). Both are in genus Caspiomyzon (Lang et al., 2009: Ref. 89370). Common name from Ref. 89241 replacing Greek brook lamprey.
Môi trường: môi trường / vùng khí hậu / Mức độ sâu / phạm vi phân phối
Sinh thái học
; nước ngọt gần đáy; di cư trong nước ngọt; mức độ sâu 0 - 1 m (Ref. 12282). Temperate; 42°N - 40°N, 23°E - 25°E (Ref. 59043)
Europe: Endemic to Greece. Known from three creeks in the Struma drainage.
Bộ gần gũi / Khối lượng (Trọng lượng) / Tuổi
Chín muồi sinh dục: Lm ? range ? - ? cm
Max length : 18.9 cm TL con đực/không giới tính; (Ref. 89241); Khối lượng cực đại được công bố: 7.40 g (Ref. 12282)
Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 0; Tia cứng vây hậu môn: 0; Tia mềm vây hậu môn: 0. Adults: 9.55-15.85 cm TL. Body proportions, as percentage of TL (based on 66 specimens measuring 9.55-15.85 cm TL): prebranchial length, 8.4-13.1; branchial length, 9.5-12.4; trunk length, 46.4-54.7; tail length, 26.2-33.0; cloacal slit length, 0.6-2.0; eye length, 1.3-2.1; disc length, 2.9-7.3; prenostril length, 3.6-7.3; snout length, 4.4-8.9; postocular length, 2.3-3.8. The intestinal diameter, <0.05- 0.10 cm. The urogenital papilla length, as a percentage of branchial length, in eight spawning males measuring 9.6-13.3 cm TL, 3.3-9.1. Trunk myomeres, 53-63. Dentition: All labial teeth are pavement-like; supraoral lamina, 2 teeth, usually unicuspid, but one or both may be bicuspid; infraoral lamina, 7-11 teeth; typically 3 endolateral teeth on each side, but 4 teeth also occur (6 cases out of 96); endolateral formula, typically 2-2-2, but variant formulae occur in 25% of cases and each of the teeth can be either uni-, bi-, or tricuspid; 3-4 rows of anterials; first row of anterials, 4-8 teeth; 2-6 rows of exolaterals on each side; 1-4 rows of posterials; first row of posterials, 10-15 teeth; transverse lingual lamina with a greatly enlarged median tooth but no lateral teeth; longitudinal lingual laminae without teeth. Additonally, 9 of 66 adults possessed 1-2 accessory unicuspid teeth inside the ring formed by the supraoral and infraoral laminae and the endolateral teeth. Velar tentacles, 2-5. Body coloration (preserved) in mature adults is gray on the upper surface and flanks and light brown on the lower surface. Lateral line neuromasts unpigmented. Caudal fin pigmentation, + (2% of specimens), ++ (19%) or +++ (79%). Caudal fin shape, rounded (Ref.89241). Gray to black color of the caudal fins (Ref. 59043).
Body shape (shape guide): eel-like.
A short-lived, freshwater lamprey which lives in shallow, clear, fairly fast-flowing brooks with gravelly substrate, some rocks and aquatic plants (Ref. 26100). Adults are found at depths of 25-75 cm, in mud, especially among the roots of aquatic vegetation (Ref. 89241). They are filter feeders on microorganisms, including green algae (Ref. 26100). Adults are nonparasitic and believed to live for only 3-4 months. Spawning takes place in December up to May. Ammocoetes larvae live in detritus-rich sands and clay sediments (Ref. 59043). Metamorphosis takes place in December (Ref. 26100); between October and January in the Strymon and Loúros River Basins, Greece (Ref. 89241). Pollution and water obstruction are considered threats to the population (Ref. 26100).
Vòng đời và hành vi giao phối
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Renaud, C.B., 1986. Eudontomyzon hellenicus Vladykov, Renaud, Kott, and Economidis, 1982. p. 186-195. In J. Holcík (ed.) The freshwater fishes of Europe. Petromyzontiformes. (Ref. 12282)
Tình trạng Sách đỏ IUCN (Ref. 130435: Version 2025-2 (Global))
Mối đe dọa đối với con người
Harmless
Sử dụng của con người
Các nghề cá: không ích lợi (thú vị)
Các công cụ
Báo cáo đặc biệt
Tải xuống XML
Các nguồn internet
Ước tính dựa trên mô hình
Chỉ số đa dạng phát sinh loài (Tài liệu tham khảo
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00132 (0.00060 - 0.00290), b=2.99 (2.80 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Mức dinh dưỡng (Tài liệu tham khảo
69278): 3.5 ±0.37 se; based on food items.
Thích nghi nhanh (Tài liệu tham khảo
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (tmax=tm).
Sự dễ bị tổn thương của nghề đánh cá (Ref.
59153): Low vulnerability (10 of 100).
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