Conservation of Native Lampreys

摘要: Forty-four species of lampreys (Petromyzontidae) are currently recognized: (a) nine anadromous and parasitic (i.e., feeding on actinopterygian fishes after metamorphosis); (b) freshwater resident parasitic; (c) 26 non-parasitic do not feed at all following metamorphosis). To date, the conservation status 33 these (75 %) has been assessed a global scale. Of those assessed, least 12 deemed risk. Lampreys risk from number anthropogenic pressures, most notably pollution, habitat destruction (e.g., dredging depositional habitats essential to larval lampreys), engineering works (particularly dams that act as barriers migration alter natural stream flow regimes), overharvest, changes their prey base. Legislation brought forward in recent years, North America Europe, give some protection habitat. At 16 now receive legal portion range national (or European Union) level; others protected by laws subnational level. A projects across world focusing populations harvested humans); examples described. Taxonomic uncertainty remains an impediment lampreys, however, there is also need explain resolve disagreements between (IUCN) lists; better coordination consultation should be developed prevent confusion.