Relevant bibliographies by topics / Least brook lamprey Ammocoetes

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Academic literature on the topic 'Least brook lamprey Ammocoetes'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Least brook lamprey Ammocoetes"

1

Smith, Dustin M., Stuart A. Welsh, and Philip J. Turk. "Selection and preference of benthic habitat by small and large ammocoetes of the least brook lamprey (Lampetra aepyptera)." Environmental Biology of Fishes 91, no. 4 (April 7, 2011): 421–28. http://dx.doi.org/10.1007/s10641-011-9800-8.

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Neave, F. B., N. E. Mandrak, M. F. Docker, and D. L. Noakes. "An attempt to differentiate sympatric Ichthyomyzon ammocoetes using meristic, morphological, pigmentation, and gonad analyses." Canadian Journal of Zoology 85, no. 4 (April 2007): 549–60. http://dx.doi.org/10.1139/z07-032.

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We assessed characters that could be used to differentiate ammocoetes of chestnut lamprey ( Ichthyomyzon castaneus Girard, 1858), northern brook lamprey ( Ichthyomyzon fossor Reighard and Cummins, 1916), and silver lamprey ( Ichthyomyzon unicuspis Hubbs and Trautman, 1937). We sampled ammocoetes of the three species from 25 streams around the Great Lakes. Existing genetic markers were used to identify chestnut lamprey for this study, but the lack of genetic markers for silver and northern brook lampreys forced our preliminary classification of these two species to be based on stream-specific catch records of adults. Comparison of ammocoete gonads was inconclusive as a technique to distinguish between these two species. Other characters examined (including pigmentation patterns, morphometric characters, body shape, and myomere counts) varied significantly among species, but were inadequate for use as diagnostic characters because of high intraspecific variation and overlapping ranges. Chestnut lamprey ammocoetes were sometimes distinguishable by their pigmented lateral line organs, but this character was not always apparent. The lack of distinguishing characteristics makes existing taxonomic keys misleading for identifying Ichthyomyzon lamprey larvae.
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Evans, Thomas M., and Amy M. Weber. "Multiple stable isotopes identify sediment organic matter as the primary nutritional source to American brook lamprey larvae along a stream gradient." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 1 (January 2020): 81–89. http://dx.doi.org/10.1139/cjfas-2018-0270.

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Multiple stable isotope ratios (δ2H, δ13C, δ15N, and δ34S) of American brook lamprey (Lethenteron appendix) ammocoetes and their potential sources were measured along a stream gradient. Isotopic ratios were successful at differentiating three potential sources: terrestrial organic matter (TOM; upland plants), sediment organic matter (SOM; benthic organic material), and algae. Bayesian mixing models (MixSIAR) utilizing δ13C, δ15N, and δ34S estimated ammocoetes were highly reliant on SOM at all sites (>95%), but inclusion of δ2H increased the importance of both algae and model uncertainty. Ammocoete δ2H was more depleted than anticipated even after lipid extraction and after accounting for trophic water contributions, suggesting δ2H in consumer tissues (especially for long-lived animals) is still incompletely understood. Model sensitivity testing with trophic fractionation values did not substantially change the results. Regardless of the mixing model investigated, none indicated more algae in ammocoete diets in downstream rather than upstream sites, in contrast with expectations about river productivity. Stable isotopes suggest SOM, and not algae, is nutritionally most important to ammocoetes, even in downstream reaches of rivers.
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TUTMAN, PERO, JÖRG FREYHOF, JAKOV DULČIĆ, BRANKO GLAMUZINA, and MATTHIAS GEIGER. "Lampetra soljani, a new brook lamprey from the southern Adriatic Sea basin (Petromyzontiformes: Petromyzontidae)." Zootaxa 4273, no. 4 (June 7, 2017): 531. http://dx.doi.org/10.11646/zootaxa.4273.4.4.

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Lampetra soljani, new species, is described from the lower Neretva River in the Adriatic Sea basin. Previously it was identified as L. zanandreai. Based on morphological similarity and mitochondrial genetic data, it is related to L. lanceolata and L. ninae from the Black Sea basin. Lampetra soljani is distinguished from all other species of Lampetra by having a marmorate flank pattern in live, fully grown ammocoetes, and in some adults (vs. plain colour pattern). Lampetra soljani is distinguished from other Lampetra species by having three velar tentacles, 54–57 trunk myomeres between the last branchial opening and the anus, no posterial teeth and a bicuspid middle endolateral tooth. Lampetra soljani is also well distinguished by COI barcode data from its congeners. The new species is widespread in the Neretva River drainage and lampreys from Lake Skadar basin are likely to belong to this species also.
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Jażdżewski, M., L. Marszał, and M. Przybylski. "Habitat preferences of Ukrainian brook lamprey Eudontomyzon mariae ammocoetes in the lowland rivers of Central Europe." Journal of Fish Biology 88, no. 2 (October 29, 2015): 477–91. http://dx.doi.org/10.1111/jfb.12806.

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Wilkie, M. P., Y. Wang, P. J. Walsh, and J. H. Youson. "Nitrogenous waste excretion by the larvae of a phylogenetically ancient vertebrate: the sea lamprey (Petromyzon marinus)." Canadian Journal of Zoology 77, no. 5 (October 1, 1999): 707–15. http://dx.doi.org/10.1139/z99-038.

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Larval sea lampreys (Petromyzon marinus) (ammocoetes) excreted significant quantities of urea, which composed 15-20% of the total nitrogenous waste excreted. Compared with teleosts of similar size, ammonia and urea excretion rates (JAmm and JUrea, respectively) in ammocoetes were relatively low, reflecting the low metabolic rate of these burrow-dwelling suspension feeders. Analyses of liver enzymes indicated that ammocoetes had all the enzymes necessary to produce urea via uricolysis, but not those of the ornithine-urea cycle (OUC). Further, exposure to 2 mmol·L-1 total ammonia for 5 d was accompanied by a 3-fold elevation of JUrea, but did not lead to greater OUC activity. Internal ammonia levels increased markedly, however, exceeding 2000 µmol·L-1 in plasma and 5000 µmol·L-1 in muscle after the 5-d exposure period. This high resistance to internal ammonia accumulation was related to the very high glutamine synthetase activities measured in ammocoete brains. The excretion and production of urea by ammocoetes demonstrates for the first time that agnathans are capable of producing physiologically relevant amounts of urea. Given the ancient origins and conserved evolution of lampreys, these observations also suggest that at least some of the early jawless vertebrates were able to produce and excrete urea.
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RENAUD, CLAUDE B., and PANOS S. ECONOMIDIS. "Eudontomyzon graecus, a new nonparasitic lamprey species from Greece (Petromyzontiformes: Petromyzontidae)." Zootaxa 2477, no. 1 (May 19, 2010): 37. http://dx.doi.org/10.11646/zootaxa.2477.1.3.

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Eudontomyzon graecus, sp. n., a nonparasitic lamprey from Greece, is restricted to the Loúros River drainage, Ionian Sea basin, Epirus Periphery. It is distinguished from Eudontomyzon hellenicus, the other nonparasitic Greek brook lamprey, occurring allopatrically in the Strymon River drainage, Aegean Sea basin, Central Macedonia Periphery, by possessing at the adult stage a relatively longer tail and a greater number of bicuspid teeth in both the first row of anterials and posterials, and at the ammocoete stage, by a relatively shorter trunk and longer tail and a less pigmented upper lip, tongue precursor bulb and lateral aspects of the elastic ridge. Taken individually, these three adult and five larval characters, varied in their diagnostic power from 71 to 88% for the adults and from 91 to 97% for the ammocoetes. However, in combination, these characters provide sufficient evidence to justify recognition of this new species, in addition to the wide distance (ca 400 km) separating it from its closest extant relative, as well as its independent origin.
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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 (October 1, 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 Lamproie du Nord requiert deux habitats distincts, soit un pour les adultes reproducteurs et un autre, le long du même cours d’eau, pour le développement des ammocètes. La détérioration de l’habitat et la pollution des eaux représentent les principales menaces à la survie des lamproies. La faible fécondité et la mobilité réduite de la Lamproie du Nord font en sorte que cette espèce est peu adaptable aux modifications de son environnement.The Northern Brook Lamprey is endemic to North America. In Quebec, it is restricted to the southernmost part of the province. This lamprey is known from the St. Lawrence River as well as in 11 of its tributaries. It appears to have been extirpated from the Yamaska River where it was collected between 1946 and 1959. It is a nonparasitic fish and its adult size does not usually exceed 160 mm. Larvae, called ammocoetes, and adults are found only in fresh water. Watercourses where it occurs are generally streams and rivers with gravel or sandy bottoms. The Northern Brook Lamprey requires two types of habitats during its life cycle, one for spawning adults and one, along the same watercourse, for the developing ammocoete. Habitat degradation and water pollution are the major threats to the survival of lampreys. The low fecundity and low dispersal abilities of the Northern Brook Lamprey make this species poorly adapted to withstand changes in its environment.
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Martin, Holly, and Matthew M. White. "Intraspecific Phylogeography of the Least Brook Lamprey (Lampetra aepyptera)." Copeia 2008, no. 3 (September 10, 2008): 579–85. http://dx.doi.org/10.1643/cg-06-291.

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Sutton, Trent M., and Stephen H. Bowen. "Significance of Organic Detritus in the Diet of Larval Lampreys in the Great Lakes Basin." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 11 (November 1, 1994): 2380–87. http://dx.doi.org/10.1139/f94-239.

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Larval sea lamprey (Petromyzon marinus) and northern brook lamprey (Ichthyomyzon fossor) were collected monthly from three streams in the Upper Peninsula of Michigan from May 1992 through May 1993 and larval sea lampreys were collected during summer months from sites throughout the Great Lakes basin. Organic detritus made up most of the diet ash-free-dry-mass (AFDM) throughout the year, averaging 97.79%, with algae (2.12%) and bacteria (0.09%) making up the remainder of the diet AFDM. Assimilation efficiency for AFDM averaged 72% during warmer months and 53% during cooler months (annual mean = 61%). Gut fullness (amount of AFDM in the anterior one-tenth of the intestine) was low (mean = 0.10 mg diet AFDM∙g−1 ammocoete). There were no significant differences in these measures between ammocoetes collected from the Upper Peninsula and those collected throughout the Great Lakes basin. From a laboratory-determined relationship between gut fullness and feeding rate, feeding rate in the field was estimated to be extremely slow, ranging from 4.2 to 5.5 mg diet AFDM∙g−1 ammocoete∙d−1. These observations indicate that larval lampreys efficiently utilize a diet of organic detritus during warmer months when stream temperatures and food quality are more favorable for feeding, digestion, and growth.
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Dissertations / Theses on the topic "Least brook lamprey Ammocoetes"

1

Smith, Dustin M. "Habitat selection and predation risk in larval lampreys." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10493.

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Martin, Holly R. "Intraspecific phylogeography of the Least brook lamprey (Lampetra aepyptera)." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1141746230.

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Martin, Holly Renee. "Intraspecific Phylogeography of the Least Brook Lamprey, (Lampetra aepyptera)." Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1141746230.

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Shasteen, Diane. "Distribution, abundance, and habitat requirements of the threatened Least Brook Lamprey, Lampetra aepyptera, in the Shawnee National Forest /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1456289101&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Book chapters on the topic "Least brook lamprey Ammocoetes"

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Docker, Margaret F., and F. William H. Beamish. "Age, growth, and sex ratio among populations of least brook lamprey, Lampetra aepyptera, larvae: an argument for environmental sex determination." In Women in ichthyology: an anthology in honour of ET, Ro and Genie, 191–205. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0199-8_16.

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"Biology, Management, and Conservation of Lampreys in North America." In Biology, Management, and Conservation of Lampreys in North America, edited by Peter B. Moyle, Larry R. Brown, Shawn D. Chase, and Rebecca M. Quiñones. American Fisheries Society, 2009. http://dx.doi.org/10.47886/9781934874134.ch17.

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<em>Abstract</em>.—Lampreys are among the least studied group of fishes in California. At least seven species inhabit freshwater habitats within the state, including the Kern brook lamprey <em>Lampetra hubbsi</em>, a California endemic. Four species are micropredators on fish, Pacific lamprey <em>Entosphenus tridentatus</em> (formerly <em>L. tridentata</em>), river lamprey <em>L. ayresii</em>, Klamath lamprey <em>E. similis</em> (formerly <em>L. similis</em>) and Goose Lake lamprey <em>Entosphenus</em> sp. The remaining three species are nonfeeding as adults and are presumed to have many populations isolated from one another. Pacific lamprey and river lamprey are anadromous and may have increased diversity through multiple runs. A systematic analysis of the limited information available indicates that, with the possible exception of the Pit-Klamath brook lamprey <em>E. lethophagus</em> (formerly <em>L. lethophaga</em>), all species are either declining, in low numbers, or in isolated populations. Causes of the declines are multiple and species-specific, but in general, alteration of watersheds by humans, resulting in increased siltation, temperatures and pollution, as well as other habitat changes are the principal causes. Protecting lampreys has the benefit of protecting stream ecosystems throughout the state because of the wide historic presence of lampreys and because ammocoetes require clean, cool water and relatively complex habitat, including stable backwaters.
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