Use of physiological knowledge to control the invasive sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes
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The sea lamprey is invasive to the Laurentian Great Lakes and managers have exploited the unique physiology of this basal vertebrate to control their populations and rehabilitate the Great Lakes ecosystem and fishery.Abstract:
Sea lamprey (Petromyzon marinus) control in the Laurentian Great Lakes of North America is an example of using physiological knowledge to successfully control an invasive species and rehabilitate an ecosystem and valuable fishery The parasitic sea lamprey contributed to the devastating collapse of native fish communities after invading the Great Lakes during the 1800s and early 1900s Economic tragedy ensued with the loss of the fishery and severe impacts to property values and tourism resulting from sea lamprey-induced ecological changes To control the sea lamprey and rehabilitate the once vibrant Great Lakes ecosystem and economy, the Great Lakes Fishery Commission (Commission) was formed by treaty between Canada and the United States in 1955 The Commission has developed a sea lamprey control programme based on their physiological vulnerabilities, which includes (i) the application of selective pesticides (lampricides), which successfully kill sedentary sea lamprey larvae in their natal streams; (ii) barriers to spawning migrations and associated traps to prevent infestations of upstream habitats and remove adult sea lamprey before they reproduce; and (iii) the release of sterilized males to reduce the reproductive potential of spawning populations in select streams Since 1958, the application of the sea lamprey control programme has suppressed sea lamprey populations by ~90% from peak abundance Great Lakes fish populations have rebounded and the economy is now thriving In hopes of further enhancing the efficacy and selectivity of the sea lamprey control programme, the Commission is exploring the use of (i) sea lamprey chemosensory cues (pheromones and alarm cues) to manipulate behaviours and physiologies, and (ii) genetics to identify and manipulate genes associated with key physiological functions, for control purposes Overall, the Commission capitalizes on the unique physiology of the sea lamprey and strives to develop a diverse integrated programme to successfully control a once devastating invasive speciesread more
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Control of Invasive Sea Lamprey in the Great Lakes, Lake Champlain, and Finger Lakes of New York
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Sequencing of the sea lamprey (Petromyzon marinus) genome provides insights into vertebrate evolution
J. Joshua Smith,Shigehiro Kuraku,Carson Holt,Tatjana Sauka-Spengler,Ning Jiang,Michael S. Campbell,Mark Yandell,Tereza Manousaki,Axel Meyer,Ona Bloom,Ona Bloom,Jennifer R. Morgan,Joseph D. Buxbaum,Ravi Sachidanandam,Carrie Sims,Alexander S. Garruss,Malcolm Cook,Robb Krumlauf,Leanne M. Wiedemann,Stacia A. Sower,Wayne A. Decatur,Jeffrey A. Hall,Chris T. Amemiya,Nil Ratan Saha,Katherine M. Buckley,Jonathan P. Rast,Sabyasachi Das,Masayuki Hirano,Nathanael McCurley,Peng Guo,Nicolas Rohner,Clifford J. Tabin,Paul Piccinelli,Greg Elgar,Magali Ruffier,Bronwen Aken,Stephen M. J. Searle,Matthieu Muffato,Miguel Pignatelli,Javier Herrero,Matthew Jones,C. Titus Brown,Yu Wen Chung-Davidson,Kaben G. Nanlohy,Scot V. Libants,Chu Yin Yeh,David W. McCauley,James A. Langeland,Zeev Pancer,Bernd Fritzsch,Pieter J. de Jong,Baoli Zhu,Lucinda Fulton,Brenda Theising,Paul Flicek,Marianne E. Bronner,Wesley C. Warren,Sandra W. Clifton,Richard K. Wilson,Weiming Li +59 more
TL;DR: Analyses of the assembly indicate that two whole-genome duplications likely occurred before the divergence of ancestral lamprey and gnathostome lineages, and help define key evolutionary events within vertebrate lineages.
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