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Journal articles on the topic 'Lampros'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

HALL, JASON P. W. "Two new genera in the Nymphidiina (Lepidoptera: Riodinidae: Nymphidiini)." Zootaxa 1415, no. 1 (2007): 35–42. http://dx.doi.org/10.11646/zootaxa.1415.1.4.

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Two new riodinid genera in the subtribe Nymphidiina (tribe Nymphidiini) are described from the lowlands of the Amazon basin. Livendula Hall, n. gen., is described with huebneri Butler as its type species, and the following eleven species are transferred to Livendula (n. combs.) from Adelotypa Warren: amasis Hewitson, aminias Hewitson, aristus Stoll, balista Hewitson, epixanthe Stichel, huebneri Butler, jasonhalli Brévignon & Gallard, leucocyana Geyer, leucophaea Hübner, pauxilla Stichel, and violacea Butler. Minotauros Hall, n. gen., is described with lampros Bates as its type species, and

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2

Fortin, Christian, Martin Ouellet, Isabelle Cartier, Daniel Banville, and Claude B. Renaud. "Biologie et situation de la Lamproie du Nord, Ichthyomyzon fossor, au Québec." Canadian Field-Naturalist 121, no. 4 (2007): 402. http://dx.doi.org/10.22621/cfn.v121i4.512.

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La Lamproie du Nord est une espèce propre à l’Amérique du Nord et elle ne se rencontre, au Québec, que dans l’extrême sud de la province. Cette lamproie a été observée dans le fleuve Saint-Laurent ainsi que dans 11 de ses tributaires. Elle aurait disparu de la rivière Yamaska où elle avait été recensée entre 1946 et 1959. Poisson non parasite, sa taille au stade adulte ne dépasse habituellement pas 160 mm. Les larves, appelées ammocètes, et les adultes ne se retrouvent qu’en eau douce. Les cours d’eau utilisés sont généralement des ruisseaux et des rivières à fond graveleux ou sablonneux. La L

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3

Petersen, Mette K. "Fecundity and juvenile survival of Bembidion lampros and Tachyporus hypnorum." Entomologia Experimentalis et Applicata 87, no. 3 (1998): 301–9. http://dx.doi.org/10.1046/j.1570-7458.1998.00335.x.

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4

Petersen, M. K., B. Ekbom, and H. P. Ravn. "Temperature dependent winter survival of Bembidion lampros and Tachyporus hypnorum." Journal of Insect Physiology 42, no. 11-12 (1996): 997–1005. http://dx.doi.org/10.1016/s0022-1910(96)00072-8.

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5

Merivee, Enno, Angela Ploomi, Märt Rahi, Anne Luik, and Väino Sammelselg. "Antennal sensilla of the ground beetle Bembidion lampros Hbst (Coleoptera, Carabidae)." Acta Zoologica 81, no. 4 (2001): 339–50. http://dx.doi.org/10.1046/j.1463-6395.2000.00068.x.

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6

Çilgi, Tamer, Steve D. Wratten, Jacqueline L. Robertson, David E. Turner, John M. Holland, and Geoff K. Frampton. "RESIDUAL TOXICITIES OF THREE INSECTICIDES TO FOUR SPECIES (COLEOPTERA: CARABIDAE) OF ARTHROPOD PREDATOR." Canadian Entomologist 128, no. 6 (1996): 1115–24. http://dx.doi.org/10.4039/ent1281115-6.

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AbstractIn laboratory bioassays, four carabid species [Agonum dorsale (Pontoppidan), Bembidion lampros (Herbst), B. obtusum Serville, and Demetrias atricapillus (L.)] that are important predators of aphids in cereals in the United Kingdom were exposed to deposits of deltamethrin, dimethoate, or pirimicarb on glass for up to 72 h. We detected differences between compounds and species that are discussed in the context of exposure of these predators to insecticides in the field. We also describe problems involved in obtaining comparative toxicity data when dilutions of field application rates for

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7

Guseva, Olga G., and Alexander G. Koval. "Distribution of ground beetles of the genus Bembidion (Coleoptera, Carabidae) in the agricultural landscape in Northwestern Russia." Acta Biologica Sibirica 7 (September 6, 2021): 227–36. http://dx.doi.org/10.3897/abs.7.e70229.

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We have observed seven species of predator beetles of the genus Bembidion in the agricultural landscape of the Leningrad Region (Northwestern Russia) between the years 2008 and 2018. These species reach their highest abundance in sun-exposed areas, especially mesophilic B. quadrimaculatum Linnaeus, 1761, B. properans (Stephens, 1828), B. lampros (Herbst, 1784), and B. femoratum Sturm, 1825. A few mesohygrophilic B. guttula (Fabricius, 1792) and B. gilvipes (Sturm, 1825) live primarily in areas of dense vegetation. Finally, the hygrophilic B. bruxellense (Wesmael, 1835) was only observed on the

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8

McBurney, Kim M., and Glenda M. Wright. "Chondrogenesis of a non-collagen-based cartilage in the sea lamprey, Petromyzon marinus." Canadian Journal of Zoology 74, no. 12 (1996): 2118–30. http://dx.doi.org/10.1139/z96-241.

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Chondrogenesis of the trabeculae, non-collagen-based cartilages in prolarval stages of the sea lamprey, Petromyzon marinus, was examined by light and electron microscopy. Chondrogenesis of the trabecular cartilages in prolarval lampreys commenced with the formation of mesenchymal condensations. Two peaks in mesenchymal cell density occurred, one prior to condensation formation and a second immediately before cartilage differentiation. The possibility of inductive influences by epithelio-mesenchymal interactions on the initiation of chondrogenesis is discussed. Bilateral condensations first app

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9

Brenøe, Jane. "Wet extraction-a method for estimating populations ofBembidion lampros(Herbst) (Col., Carabidae)." Journal of Applied Entomology 103, no. 1-5 (1987): 124–27. http://dx.doi.org/10.1111/j.1439-0418.1987.tb00968.x.

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10

Guseva, Olga G., and Alexander G. Koval. "Distribution of ground beetles of the genus Bembidion (Coleoptera, Carabidae) in the agricultural landscape in Northwestern Russia." Acta Biologica Sibirica 7 (September 6, 2021): 227–36. https://doi.org/10.3897/abs.7.e70229.

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We have observed seven species of predator beetles of the genus <em>Bembidion</em> in the agricultural landscape of the Leningrad Region (Northwestern Russia) between the years 2008 and 2018. These species reach their highest abundance in sun-exposed areas, especially mesophilic <em>B. quadrimaculatum</em> Linnaeus, 1761, <em>B. properans</em> (Stephens, 1828), <em>B. lampros</em> (Herbst, 1784), and <em>B. femoratum</em> Sturm, 1825. A few mesohygrophilic <em>B. guttula</em> (Fabricius, 1792) and <em>B. gilvipes</em> (Sturm, 1825) live primarily in areas of dense vegetation. Finally, the hygr

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11

Jensen, L. Boye. "Effect of temperature on the development of the immature stages ofBembidion lampros [Coleoptera: Carabidae]." Entomophaga 35, no. 2 (1990): 277–81. http://dx.doi.org/10.1007/bf02374803.

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12

Petersen, Mette K. "Capacity of Bembidion lampros and Tachyporus hypnorum to survive periods of starvation in early spring." Entomologia Experimentalis et Applicata 90, no. 2 (1999): 207–14. http://dx.doi.org/10.1046/j.1570-7458.1999.00440.x.

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13

Mombaeva, B. K., N. T. Tumenbayeva, L. T. Kaliyeva, A. B. Ualiyevа, and А. О. Dosmaganbetova. "BIOECOLOGICAL SUBSTANTIATION OF THE EFFECTIVENESS OF ENTOMOPHAGES OF PEA PESTS (PISUM SATIVUM L.) IN THE AKMOLA REGION." Bulletin of the Korkyt Ata Kyzylorda University 3 (2024): 80–89. http://dx.doi.org/10.52081/bkaku.2024.v70.i3.176.

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Ақмола облысы жағдайында, бұршақ дақылының зиянкестері бұршақ бітесі мен түйнекті бізтұмсықтың жаппай көп кездескен энтомофагтары анықталды, олардың санының ауытқуы, экологиялық жағдайлардың энтомофагтарға әсер ету дәрежесіне байланысты биологиялық ерекшеліктері зерттелді, сонымен қатар энтомофагтардың тиімділігі негізделді. Зерттеу нәтижелері негізінде, зиянкес түйнекті бізтұмсықтардың санын басуда жыртқыш майда қоңыздардың ішінен энтомофагтардың басым, өте маңызды, тиімді топтары анықталды. Олар: Bembidion femoratum, V. quadrimaculatum, V. lampros, Microlestes minutulus. Ал, бұршақ бітесінің

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14

Knapp, M., and P. Saska. "The effects of habitat, density, gender and duration on overwintering success in Bembidion lampros (Coleoptera: Carabidae)." Journal of Applied Entomology 136, no. 3 (2011): 225–33. http://dx.doi.org/10.1111/j.1439-0418.2011.01643.x.

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15

Rozek, Maria. "C-bands and NORs on Chromosomes of Bembidion lampros (Herbst) and Bembidion properans (Steph.) (Coleoptera, Carabidae)." CYTOLOGIA 63, no. 3 (1998): 317–21. http://dx.doi.org/10.1508/cytologia.63.317.

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16

Davy, Christina M., Juliana Skuza, and Amelia K. Whitear. "Spiny Softshell (Apalone spinifera) turtles exhibit scarring consistent with attempted lamprey bites." Canadian Field-Naturalist 132, no. 2 (2019): 120–21. http://dx.doi.org/10.22621/cfn.v132i2.2039.

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We captured 46 Spiny Softshells (Apalone spinifera) during a mark–recapture study on Lake Erie (2012–2015). Six (13%) exhibited circular scars consistent with the bites of small parasitic lampreys. Two species of parasitic lampreys occur in Lake Erie: the invasive Sea Lamprey (Petromyzon marinus) and the native Silver Lamprey (Ichthyostomyzon unicuspis). The scars showed only the marks of the putative teeth surrounding the suctorial mouth, preventing identification based on the position of the supraoral teeth and suggesting that lampreys are rapidly dislodged from the turtles. To our knowledge

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17

You, Xinyi, and Jiaying Wu. "Dynamic food web model based on Lotka Volterra model." Transactions on Computer Science and Intelligent Systems Research 5 (August 12, 2024): 1273–83. http://dx.doi.org/10.62051/ftebev82.

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Lampreys are regarded as parasites with significant impacts on the ecosystem in some lake habitats, and analyzing the relationship between the population characteristics of lampreys and the ecosystem is of great significance for improving the ecological environment and maintaining the ecological balance. The sex ratio of lampreys varies depending on the external environment. To gain insight into the issue of sex ratios of lampreys in ecosystems and their dependence on local conditions, this paper firstly develops a Lotka-Volterra model to characterize the effects of changes in the sex ratio of

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18

Whyte, John N. C., Richard J. Beamish, Norma G. Ginther, and Chrys-Ellen Neville. "Nutritional Condition of the Pacific Lamprey (Lampetra tridentata) Deprived of Food for Periods of Up to Two Years." Canadian Journal of Fisheries and Aquatic Sciences 50, no. 3 (1993): 591–99. http://dx.doi.org/10.1139/f93-068.

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The anadromous parasitic Pacific lamprey (Lampetra tridentata) does not feed during metamorphosis or its spawning migration. To assess the utilization of body reserves, we compared the compositions of an adult lamprey held for 2 yr without food, recently metamorphosed lampreys, and lampreys starved for 6 mo. Moisture was higher and soluble ash and lipid levels were lower in tissue of the 2-yr-starved than in metamorphosed lampreys (2.67 and 3.39 kj∙g−1, respectively). Fatty acid profiles of 2-yr-starved and metamorphosed lampreys were qualitatively similar except for the presence of 15:0 in th

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19

Baker, Cindy F., Don J. Jellyman, Kathryn Reeve, et al. "First observations of spawning nests in the pouched lamprey (Geotria australis)." Canadian Journal of Fisheries and Aquatic Sciences 74, no. 10 (2017): 1603–11. http://dx.doi.org/10.1139/cjfas-2016-0292.

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The pouched lamprey (Geotria australis), one of four Southern Hemisphere lamprey species, is New Zealand’s only freshwater representative of the agnathans. In contrast to that of Northern Hemisphere lampreys, the reproductive ecology of Southern Hemisphere lampreys is poorly understood, with no documented nesting sites or spawning behaviours. In the present study, we utilized passive integrated transponder tags to track migratory adult G. australis to locate spawning sites. Across 2 years, six cryptic nesting sites were discovered, each containing eggs and a single male and female lamprey. The

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20

Deng, Jiawei, Rui Zhang, and Jiaming Cui. "Ecological Dynamics of Lamprey Parasitism." Advances in Engineering Technology Research 12, no. 1 (2024): 689. https://doi.org/10.56028/aetr.12.1.689.2024.

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Over the long course of evolution, the lamprey has developed a parasitic predatory strategy, rendering it atypical in most environments. This report investigates the impact of lampreys on ecosystems and their interactions with other organisms, with the primary objective of developing a dynamic model of the population and sex ratio of lampreys. At first, a population dynamics model simulates interactions between male and female lamprey groups, using Lotka-Volterra equations to depict the relationship between lampreys and their primary hosts, Lake Trout and Atlantic Salmon. Changes in the sex ra

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21

Zhang, Jingxin, Zimo Zeng, and Yukang Xiang. "Logistic and Lotka-Volterra based dynamic ecological modeling of Sea lamprey." Highlights in Science, Engineering and Technology 99 (June 18, 2024): 408–14. http://dx.doi.org/10.54097/x3v39229.

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The parasitic sea lamprey contributed to the devastating collapse of native fish communities after invading the Great Lakes during the 1800s and early 1900s. Addressing this threat requires studying the environmental impacts of changes in sea lamprey populations. Sea lampreys become male or female depending on how quickly they grow during the larval stage, Sex affects the population status of Sea lampreys. Population status affects the environment. This paper introduces a comprehensive model, incorporating a resource consumption rate alongside Logistic growth and Lotka-Volterra competition fra

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22

Ermakova, Galina V., Aleksandr V. Kucheryavyy, Andrey G. Zaraisky, and Andrey V. Bayramov. "The Molecular Mechanism of Body Axis Induction in Lampreys May Differ from That in Amphibians." International Journal of Molecular Sciences 25, no. 4 (2024): 2412. http://dx.doi.org/10.3390/ijms25042412.

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Lamprey homologues of the classic embryonic inducer Noggin are similar in expression pattern and functional properties to Noggin homologues of jawed vertebrates. All noggin genes of vertebrates apparently originated from a single ancestral gene as a result of genome duplications. nogginA, nogginB and nogginC of lampreys, like noggin1 and noggin2 of gnathostomes, demonstrate the ability to induce complete secondary axes with forebrain and eye structures when overexpressed in Xenopus laevis embryos. According to current views, this finding indicates the ability of lamprey Noggin proteins to supp

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23

Renaud, Claude B., Henry K. T. Wong, and Janice L. Metcalfe-Smith. "Trace Metal Levels in Benthic Biota from Four Tributaries to the St. Lawrence River, Quebec." Water Quality Research Journal 33, no. 4 (1998): 595–610. http://dx.doi.org/10.2166/wqrj.1998.034.

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Abstract Lamprey ammocoetes (Agnatha: Petromyzontidae) and freshwater mussels (Bivalvia: Unionidae), two groups of organisms that are closely associated with sediments, were collected from the Châteauguay, Bécancour, Sainte-Anne and Saint-Maurice rivers in July 1992 and analyzed for residues of 13 metals in their tissues. The hypothesis that lamprey larvae and mussels would bioaccumulate comparable levels of metals due to similarities in their ecology was rejected. Lampreys (Ichthyomyzon fossor and Lampetra appendix) from the Châteauguay River (the only site where both lampreys and mussels wer

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24

Wang, Ruohan, Youxi Luo, Hanfang Li, and Chaozhu Hu. "Modeling Population Dynamics and Assessing Ecological Impacts of Lampreys via Sex Ratio Regulation." Applied Sciences 15, no. 14 (2025): 7680. https://doi.org/10.3390/app15147680.

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Regulating lamprey populations is crucial for maintaining ecological equilibrium. However, the unique sex determination process of lampreys is constrained by multiple factors, complicating intuitive analysis of population dynamics and their impact on the natural environment. This study employed a two-species competition mechanism to elucidate the factors influencing sex ratios and their mechanistic effects on lamprey population size. Using the Lotka–Volterra equations, we investigated how sex ratios affect trophic levels both upstream and downstream of lampreys in the food web. A logistic popu

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25

Cochran, Philip A., and James F. Kitchell. "A Model of Feeding by Parasitic Lampreys." Canadian Journal of Fisheries and Aquatic Sciences 46, no. 11 (1989): 1845–52. http://dx.doi.org/10.1139/f89-232.

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We derived a quantitative feeding model to estimate energy intake by parasitic sea lampreys (Petromyzon marinus) as a function of lamprey mass, host mass, and attachment time. Comparison of model predictions with observed growth by lampreys with known feeding histories suggests that the feeding model, used in conjunction with a previous model of lamprey energetics, generates unbiased predictions of energy intake and subsequent growth. On the basis of the relationship between energy intake and attachment time, and in accordance with previous theory on partial prey consumption, we hypothesized t

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26

Archangelsky, Miguel. "Immature Stages of Neotropical Enochrus (Coleoptera: Hydrophilidae): E. (Methydrus) lampros Knisch, 1924 and E. (Hugoscottia) tremolerasi Knisch, 1922." Aquatic Insects 24, no. 1 (2002): 41–52. http://dx.doi.org/10.1076/aqin.24.1.41.4912.

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27

Shi, Hongyang, Christopher M. Holbrook, Yunqi Cao, Nelson Sepúlveda, and Xiaobo Tan. "Measurement of suction pressure dynamics of sea lampreys, Petromyzon marinus." PLOS ONE 16, no. 4 (2021): e0247884. http://dx.doi.org/10.1371/journal.pone.0247884.

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Species-specific monitoring activities represent fundamental tools for natural resource management and conservation but require techniques that target species-specific traits or markers. Sea lamprey, a destructive invasive species in the Laurentian Great Lakes and conservation target in North America and Europe, is among very few fishes that possess and use oral suction, yet suction has not been exploited for sea lamprey control or conservation. Knowledge of specific characteristics of sea lamprey suction (e.g., amplitude, duration, and pattern of suction events; hereafter ‘suction dynamics’)

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28

Gan, Xinyu, Min Zhang, and Fuyao Meng. "Impacts of Sea Lamprey Sex Ratio Variation Analysis based on L-V Model and P-P Model." Transactions on Computer Science and Intelligent Systems Research 6 (October 17, 2024): 280–87. http://dx.doi.org/10.62051/337kh871.

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As an important animal model for the study of biological evolution and disease, lamprey has attracted the attention of many scholars. Its variable sex ratio is also becoming the focus of studying because of the impact of ecological system. This paper utilizes mathematical method, and establishes the Lotka-Volterra Model to simulate the variations of the sex ratio among lamprey larvae populations. Additionally, Holling II function and Weak Alley Effect are adopted to establish a Predator-Prey Model of adult lampreys in three-tiered food chain, predicting the population dynamics of adult lamprey

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29

Jolley, Jeffrey C., and Kenneth M. Lujan. "Pathogens of Pacific Lamprey Detected Through Routine Fish Health Screenings." Journal of Fish and Wildlife Management 10, no. 2 (2019): 517–24. http://dx.doi.org/10.3996/122018-jfwm-119.

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Abstract Interest in conservation, management, and captive rearing of Pacific Lamprey Entosphenus tridentatus in the Pacific Northwest has risen in recent years. General and specific information regarding the occurrence of fish pathogens and the risk of Pacific Lamprey as a vector for pathogens to other species is not well understood. Specific efforts to captively rear or artificially propagate Pacific Lamprey at facilities that are used for Pacific salmon Oncorhynchus spp. have increased. We performed fish health surveys on wild-caught larval and adult Pacific Lamprey from locations that were

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30

Holbrook, Christopher M., Nicholas S. Johnson, Juan P. Steibel, et al. "Estimating reach-specific fish movement probabilities in rivers with a Bayesian state-space model: application to sea lamprey passage and capture at dams." Canadian Journal of Fisheries and Aquatic Sciences 71, no. 11 (2014): 1713–29. http://dx.doi.org/10.1139/cjfas-2013-0581.

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Improved methods are needed to evaluate barriers and traps for control and assessment of invasive sea lamprey (Petromyzon marinus) in the Great Lakes. A Bayesian state-space model provided reach-specific probabilities of movement, including trap capture and dam passage, for 148 acoustic tagged invasive sea lamprey in the lower Cheboygan River, Michigan, a tributary to Lake Huron. Reach-specific movement probabilities were combined to obtain estimates of spatial distribution and abundance needed to evaluate a barrier and trap complex for sea lamprey control and assessment. Of an estimated 21 82

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31

Elliott, SAM, N. Deleys, E. Rivot, A. Acou, E. Réveillac, and L. Beaulaton. "Shedding light on the river and sea lamprey in western European marine waters." Endangered Species Research 44 (April 22, 2021): 409–19. http://dx.doi.org/10.3354/esr01113.

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Lampreys are ancestral jawless vertebrates with particularly complex life histories. Population declines resulting from increased anthropogenic pressure have been observed. For semelparous diadromous lampreys, the marine phase remains largely a black box, making targeted management and conservation measures difficult to implement. Here, we collated a database of 168904 hauls from both fisheries-dependent and fisheries-independent surveys between 1965 and 2019. Lampreys were observed in only 254 hauls (<1% lamprey presence); 421 sea lamprey Petromyzon marinus and 300 European river lamprey L

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Li, Haonan, Junhan Zeng, and Yunyang Huang. "A Study on the Impact of Lamprey’s Adaptive Gender Ratio Changes on Ecosystem Stability Based on Logical Growth and Predator-Prey Models." Highlights in Science, Engineering and Technology 109 (July 24, 2024): 289–95. http://dx.doi.org/10.54097/jq7gp219.

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This paper aims to assess the ecological ramifications of lampreys' capacity to regulate population sex ratios in response to resource availability, exploring both the advantages and disadvantages associated with this unique ability. Initially, an enhanced logistic population growth model, derived from the Lotka-Volterra model, was developed to examine the broader ecological implications of lamprey influence. This involved integrating a logistic growth model into the traditional Lotka-Volterra framework to simulate the inhibitory impact of intrapopulation competition on population growth. The

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33

Ren, Yixin, Junjie Zeng, and Jiaxin Pan. "Modeling the Impact of Lamprey Population Dynamics on Aquatic Food Webs: A Leslie and Lotka-Volterra Approach." Highlights in Science, Engineering and Technology 98 (May 16, 2024): 489–97. http://dx.doi.org/10.54097/g5a21f82.

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In recent years, the widely distributed invasive parasitic species of marine lampreys have had a profound impact on host populations and the entire aquatic ecosystem through their unique survival and reproduction strategies, highlighting the importance of species interactions and ecological balance in ecosystems. In response to this, this study establishes a species growth model for lampreys based on the Leslie model from the perspective of gender ratio changes. The idea of the Lotka-Volterra predator-prey model is used to establish the food web centered on lamprey and the fluctuation mode mod

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34

Petersen, Mette K. "The timing of dispersal of the predatory beetles Bembidion lampros and Tachyporus hypnorum from hibernating sites into arable fields." Entomologia Experimentalis et Applicata 90, no. 2 (1999): 221–24. http://dx.doi.org/10.1046/j.1570-7458.1999.00442.x.

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35

Chiverton, Philip A. "Searching behaviour and cereal aphid consumption by Bembidion lampros and Pterostichus cupreus, in relation to temperature and prey density." Entomologia Experimentalis et Applicata 47, no. 2 (1988): 173–82. http://dx.doi.org/10.1111/j.1570-7458.1988.tb01133.x.

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36

Tumenbayeva, Nagima, Aruzhan Myrzagali, Aliya Kushenbekova, and Rauza Abdukerim. "POPULATION DYNAMICS AND BIOECOLOGY OF ENTOMOPHAGES OF PEA PESTS (PISUM SATIVUM L.) IN THE AKMOLA REGION." 3i intellect idea innovation - интеллект идея инновация 4 (2024): 133–40. https://doi.org/10.52269/22266070_2024_4_133.

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For the conditions of the Akmola region, complexes of entomophagous dominants targeting Sitona bugs and pea aphids have been identified. Population fluctuations and biological characteristics were studied in relation to the impact of environmental conditions, and criteria for the effectiveness of entomophages were substantiated. The dominant, most effective groups of entomophages from among small ground beetles have been identified, which are crucial in suppressing the number of Sitona bugs (Bembidion femoratum, B. quadrimaculatum, B. lampros, Microlestes minutulus). The promising entomophages

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37

Wagner, C. Michael, Eric M. Stroud, and Trevor D. Meckley. "A deathly odor suggests a new sustainable tool for controlling a costly invasive species." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 7 (2011): 1157–60. http://dx.doi.org/10.1139/f2011-072.

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Here we confirm a long-standing anecdotal observation; the sea lamprey ( Petromyzon marinus ) actively avoids the odor emitted by decaying conspecifics. We extracted the semiochemical mixture produced by the putrefying carcasses of sea lampreys via Soxhlet extraction in ethanol and exposed groups of 10 migratory-phase lampreys to either the putrefaction extract (N = 8) or an ethanol control (N = 8) in a laboratory raceway. Sea lampreys rapidly avoided the putrefaction odor while exhibiting no response to the ethanol control. This response was elicited with a diluted mixture (1:373 000) and was

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Guo, Junjie, Xin Sun, Liya Du, and Hairong Di. "Survival Relationships and Ecosystems of the lampreys on the Basis of Several Models." Transactions on Environment, Energy and Earth Sciences 3 (November 26, 2024): 102–11. https://doi.org/10.62051/phnx5924.

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The population of lampreys, one of the only remaining jawless vertebrates in the world, has survived on Earth for hundreds of millions of years, predating the dinosaurs. This remarkable endurance has made lampreys a significant topic of discussion among biologists, particularly for their relevance to the study of biological evolution and ecological stability. In this paper, the predation and competition relationship between lampreys and their natural enemies is described using the Lotka-Volterra model, and the cyclic amplitude law of the male ratio in lampreys and their predators is resolved.

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Perrault, K., I. Imre, and G. E. Brown. "Behavioural response of larval sea lamprey (Petromyzon marinus) in a laboratory environment to potential damage-released chemical alarm cues." Canadian Journal of Zoology 92, no. 5 (2014): 443–47. http://dx.doi.org/10.1139/cjz-2013-0095.

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Sea lampreys (Petromyzon marinus L., 1758) invaded the Great Lakes early in the 20th century and have caused economic and ecological damage to native fish species. The integrated sea lamprey control program involves low-head barrier dams, lampricides, and trapping. The search for low cost and less toxic alternatives to lampricides could involve the use of repellents in the form of chemical alarm cues. The objective of this study was to determine whether larval sea lamprey showed a behavioural response when exposed to damage-released chemical alarm cues by increasing their swimming time, rate o

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Kuczyński, Tomasz. "The first data from non-commercial monitoring of the occurrence and range of river lamprey, Lampetra fluviatilis, in selected rivers in northern Poland." Fisheries & Aquatic Life 32, no. 3 (2024): 191–203. https://doi.org/10.2478/aopf-2024-0017.

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Abstract Human impact on fish populations extends beyond mere exploitation. Rivers and streams, essential conduits for these fish migrations, have undergone substantial anthropogenic modifications driven by navigation, hydropower generation, and water regulation imperatives. An example of one species that has been affected from the anadromous lampreys is river lamprey, Lampetra fluviatilis (L.). Populations of anadromous lampreys have declined dramatically in European rivers, including in Poland, because of the loss of river connectivity and habitat modification that prevents adult lamprey fro

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Johnson, Nicholas S., Michael J. Siefkes, C. Michael Wagner, et al. "A synthesized mating pheromone component increases adult sea lamprey (Petromyzon marinus) trap capture in management scenarios." Canadian Journal of Fisheries and Aquatic Sciences 70, no. 7 (2013): 1101–8. http://dx.doi.org/10.1139/cjfas-2013-0080.

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Application of chemical cues to manipulate adult sea lamprey (Petromyzon marinus) behavior is among the options considered for new sea lamprey control techniques in the Laurentian Great Lakes. A male mating pheromone component, 7α,12α,24-trihydroxy-3-one-5α-cholan-24-sulfate (3kPZS), lures ovulated female sea lamprey upstream into baited traps in experimental contexts with no odorant competition. A critical knowledge gap is whether this single pheromone component influences adult sea lamprey behavior in management contexts containing free-ranging sea lampreys. A solution of 3kPZS to reach a fi

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Langille, Robert M., and Brian K. Hall. "Artificial fertilization, rearing, and timing of stages of embryonic development of the anadromous sea lamprey, Petromyzon marinus L." Canadian Journal of Zoology 66, no. 2 (1988): 549–54. http://dx.doi.org/10.1139/z88-081.

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For experimental analysis of agnathan (lampreys and hagfishes) development, the only choice at present is the lamprey, yet these animals present severe restrictions to their use. The average duration of the breeding period of mature anadromous sea lamprey, Petromyzon marinus, caught off the coast of Nova Scotia, is approximately 3 weeks, after which the animals die. At present no hormonal treatment or other method exists either to initiate precocious sexual development or to effectively increase the natural, limited fertilization period of this species. The present study demonstrates that by (

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Wu, Yuzhe, Xinyi Li, and Qiwei Zhang. "Ecological Impacts of Lamprey Based on Lotka-Volterra Model." Transactions on Environment, Energy and Earth Sciences 4 (December 12, 2024): 159–69. https://doi.org/10.62051/z3f0yz07.

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Unlike most organisms, lampreys have a unique ability to change their sex based on the status of environmental resources. This study aims to investigate the intrinsic relationships between species within an ecosystem and to assess the advantages and disadvantages of lampreys' ability to change sex. A Gender Determination Model was established to represent the interaction between lamprey populations and the environment. This article used three evaluation criteria, including the impact on environmental conditions, performance in interspecies competition, and the Shannon-Wiener index. The Dynamic

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Sun, Tianyi. "The impact of gender ratio variation in lamprey populations based on population dynamics and food chain interactions on ecosystems." Transactions on Environment, Energy and Earth Sciences 2 (September 25, 2024): 18–25. http://dx.doi.org/10.62051/wtze2079.

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This study examines the influence of gender ratio variation in lamprey populations on ecosystems. Lampreys have a complex life cycle, and their role in the ecosystem is explored by analyzing their growth stages and interactions within the food chain. The research indicates that changes in lamprey gender ratios significantly affect population dynamics and interactions within the food chain. Using forward differencing methods to solve nonlinear differential equations, simulations were conducted on lamprey population size, gender ratios, and their impact on other components of the food chain. The

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Yan, Hanlu, and Shanghao Zhou. "Effects of changes in lamprey sex ratios on ecosystem stability: a Lotka-Volterra model-based study." Highlights in Science, Engineering and Technology 109 (July 24, 2024): 314–19. http://dx.doi.org/10.54097/c9wqh624.

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The aim of this study was to investigate the effects of external environmental factors on the sex ratio of lampreys and the possible changes in population size and structure as a result of such effects. We simulated the population dynamics of male and female lampreys separately by modeling the population dynamics of lampreys based on the Lotka-Volterra model, and considered the effects of human predation on the lamprey population. By adjusting model parameters, such as predation intensity, initial sex ratio and rate of change in sex ratio dynamics, we simulated changes in the sex ratio of lamp

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Taylor, Eric B., Les N. Harris, Erin K. Spice, and Margaret F. Docker. "Microsatellite DNA analysis of parapatric lamprey (Entosphenus spp.) populations: implications for evolution, taxonomy, and conservation of a Canadian endemic." Canadian Journal of Zoology 90, no. 3 (2012): 291–303. http://dx.doi.org/10.1139/z11-135.

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Parapatric freshwater and anadromous parasitic lampreys (Petromyzontiformes) from southwestern Vancouver Island, British Columbia, have been described as distinct taxa (Vancouver lamprey ( Entosphenus macrostomus (Beamish, 1982)) and Pacific lamprey ( Entosphenus tridentatus (Richardson, 1836)), respectively), using morphology, life history, and physiology. We tested for genetic differentiation at microsatellite DNA loci between these taxa and similar freshwater parasitic lampreys from two other lakes. The number of alleles and expected heterozygosity averaged 3.8 and 0.50, respectively, acros

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Hansen, Gretchen J. A., and Michael L. Jones. "A rapid assessment approach to prioritizing streams for control of Great Lakes sea lampreys (Petromyzon marinus): a case study in adaptive management." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 11 (2008): 2471–84. http://dx.doi.org/10.1139/f08-153.

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We developed and evaluated an alternative method (rapid assessment or RA) for assessment of larval sea lampreys, Petromyzon marinus . We determined that using RA would result in at least as many, if not more, sea lampreys being killed than would using the current assessment method (quantitative assessment sampling or QAS) to select streams for lampricide treatment. Both assessment methods were carried out simultaneously throughout the entire Great Lakes basin from 2005 to 2007. RA required fewer resources than the current method and thus allowed for the chemical treatment of additional streams

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Zhang, Ronghang. "The change of sex ratio in Lamprey based on predator and Logistic model." Transactions on Computer Science and Intelligent Systems Research 6 (October 17, 2024): 247–54. http://dx.doi.org/10.62051/6syv7332.

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This paper studies the sex ratio and resource availability of lamprey population, through the predator model and Logistic model of lamprey population dynamic simulation. Differential equations were used to dynamically describe the dynamic changes within lampreys population, and then the effects of changes in sex ratio on the food chain, population reproduction rate, habitat occupation and resource availability were analyzed. Optimize and analyze the population dynamic change model to simulate the impact of changing sex ratio on the population. Based on the competition and mutualism between lam

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Pleše, Sara, and Ivana Buj. "Tackling the Phylogeny of Lampreys—Insight from the Croatia’s Danube Basin." Water 16, no. 8 (2024): 1153. http://dx.doi.org/10.3390/w16081153.

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This research addresses the pressing issue of protecting endangered lamprey species in Croatia, a crucial element in preserving biodiversity, particularly in the face of increasing human-induced impacts on natural ecosystems due to global warming. Lampreys, a group of vertebrates with an ancient lineage, are not fully understood taxonomically, posing a challenge to conservation efforts. In the Danube and Adriatic basins of Croatia, where lampreys are found, the lack of modern molecular methods and analyses has hindered an accurate determination of species numbers. This study aimed to bridge th

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Chen, Jiuchen, Ruoqing Hao, and Jingyi Li. "Adaptive Sex Ratio Variation in Lampreys: Implications for Ecosystem Dynamics and Species Interactions." Highlights in Science, Engineering and Technology 99 (June 18, 2024): 422–30. http://dx.doi.org/10.54097/1cnzak27.

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Lampreys can alter the sex ratio of their population in response to resource availability in the environment, which has significant implications for the ecosystem. This paper built a population growth model based on the Malthusian Model to describe the relationship between the natural growth rate of lamprey populations and resource availability. It highlights how variations in the sex ratio contribute to changes in birth rates while also considering the influence of resource availability on mortality rates. This model incorporates a specific coefficient to measure the rate of resource consumpt

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