Sea lamprey (Petromyzon marinus) fish species and information / pictures of Sea lamprey - Petromyzon marinus

Sea lamprey (Petromyzon marinus) fish species information

Scientific Name
Petromyzon marinus

Common Name
Sea lamprey

Biology
Vertebrae: 0. Anguilliform body. Presence of 7 branchial openings. Two separated dorsal fins, the second continuous with the caudal fin. Number of myomeres: 67-74. Brown-yellow colored on the dorsal and lateral part of the body, with black marblings.

Classification

Classified By

Linnaeus, 1758

Class

Lampreys (Cephalaspidomorphi)

Order

Lampreys (Petromyzontiformes)

Family

Lampreys (Petromyzontidae)

Distribution

Region

Northeast Atlantic

Distribution

Northeast Atlantic: Norway including Iceland and the Barents Sea, south to northern Africa. Throughout the western Mediterranean but absent from eastern Mediterranean and the Black Sea. Western Atlantic: Labrador, Canada to Gulf of Mexico in Florida, USA. Landlocked in Great Lakes, Finger Lakes, Oneida Lake and Lake Champlain, Canada/USA. Appendix III of the Bern Convention .

Range

72°N - 25°N, 82°W - 27°E

Environment

Climate

Temperate

Water Temperature From

5 °C

Water Temperature To

20 °C

Depth From - meters

1 m

Depth To - meters

2200 m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; anadromous ; depth range 1 - 2200 m

Trophic Level

4.36999988555908 s.e. 0.85 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

120 cm

Common Length

60.0 cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

High to very high vulnerability (72 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (K 0.16; tm=5-12; Relative Fec = 233)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)