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The sea lamprey (Petromyzon marinus) is a parasitic lamprey native to the Northern Hemisphere. It is sometimes referred to as the "vampire fish". It is sometimes referred to as the "vampire fish". In its original habitats, the sea lamprey coevolved with its hosts, and those hosts evolved a measure of resistance to the sea lampreys.
Adults superficially resemble eels in that they have scaleless, [19] elongated bodies, with the largest species, the sea lamprey having a maximum body length of around 1.2 metres (3.9 ft). [6] Lacking paired fins , [ 20 ] adult lampreys have one nostril atop the head [ 21 ] and seven gill pores on each side of the head.
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Least brook lamprey (Lampetra aepyptera) American brook lamprey (Lampetra appendix) Sea lamprey (Petromyzon marinus) ... Dnr.state.md: Fish key of native species
Native species Chestnut lamprey, Ichthyomyzon castaneus [94] Southern brook lamprey, Ichthyomyzon gagei [95] Silver lamprey, ichthyomyzon unicuspis [96] Least brook lamprey, Lampetra aepyptera [97] American brook lamprey, Lenthenteron appendix [98] Non-native, exotic species Sea lamprey, Petromyzon marinus
A major threat to the lake whitefish is an invasive parasite species, the sea lamprey. It is one of a number of species (in addition to the lake trout and lake herring) aggressively attacked by sea lamprey. In Lake Michigan the sea lamprey began to decimate indigenous fish populations in the 1930s and 1940s.
This species is anadromous. This parasitic lamprey can reach a length of 54 centimetres (21 in) SL. Ammocoetes and adults of this species are found in rivers, and occur in fine sand along river banks. [3] The life cycle of a Mordacia lapicida is divided into three life stages: freshwater rearing, an ocean parasite and an adult spawning stage. [4]
In Sweden, the European river lamprey (Lampetra fluviatilis), living in fresh waters, is the most usual usage of the term lamprey. The Lampetra planeri is a closely related species living in small streams, possibly even the same species. The lamprey is the provincial fish of Västerbotten in northern Sweden. (European) river lamprey