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lampreys
"相关结果约100,000,000个
Lampreys are a group of jawless fish with about 38 extant species, mostly living in temperate regions. They have a toothed, funnel-like mouth, and some are carnivorous and parasitic, while others are filter feeders.
Not all lampreys spend time in the sea. Some are landlocked and remain in fresh water. A notable example is a landlocked race of the sea lamprey (Petromyzon marinus).This form entered the Great Lakes of North America and, because of its parasitic habits, had a disastrous killing influence on lake trout and other commercially valuable fishes before control measures were devised.
Accurate taxonomy is fundamental to the study and conservation of biodiversity. Because of their morphological similarities, most brook and river lampreys in western North America have been placed in the genus Lampetra along with lampreys from Eurasia and eastern North America. However, molecular-based phylogenetic studies dating back several decades indicate that lampreys from Pacific ...
Learn about lampreys, ancient jawless fish that share a life cycle with salmon and have various ecological and cultural values. Find out how to join the Pacific Lamprey Conservation Initiative and celebrate these amazing creatures.
Learn about lampreys, jawless fish with remarkable adaptations and regenerative abilities. Discover their diverse species, their feeding habits, their evolutionary history, and their human-lamprey relationship.
Lampreys are eel-like jawless fish with sharp teeth that can feed on blood or filter feed. Learn about their different species, life cycles, distribution, and the impact of invasive lampreys on native fish populations.
Learn about lampreys, their habitats, and unique characteristics on Discover Wildlife.
Learn about the sea lamprey, a primitive fish that parasitizes other fish and has a complex life cycle. Find out its characteristics, geography, timeline, and conservation status from the U.S. Fish & Wildlife Service.
Lampreys are jawless, eel-like fish that live in freshwater and ocean habitats. They undergo a radical metamorphosis from larvae to adults, and some are parasitic on other fish.
The Pacific Lamprey Conservation Initiative (PLCI) is a collaboration of Native American tribes, federal, state, municipal and local agencies, and non-governmental organizations working to achieve long-term persistence of Pacific Lamprey, their habitats, and support their traditional tribal use throughout their historical range spanning the West Coast of North America.