DOCSLIB.ORG

Occupancy and Detection of Larval Pacific Lampreys and <I>Lampetra

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Occupancy and Detection of Larval Pacific Lampreys and <I>Lampetra Transactions of the American Fisheries Society 141:305–312, 2012 American Fisheries Society 2012 ISSN: 0002-8487 print / 1548-8659 online DOI: 10.1080/00028487.2012.662201 NOTE Occupancy and Detection of Larval Pacific Lampreys and Lampetra spp. in a Large River: the Lower Willamette River Jeffrey C. Jolley,* Gregory S. Silver, and Timothy A. Whitesel U.S. Fish and Wildlife Service, Columbia River Fisheries Program Office, 1211 Southeast Cardinal Court, Suite 100, Vancouver, Washington 98683, USA function (Close et al. 2002). Information on basic biology, Abstract ecology, and population dynamics required for effective Pacific lampreys Entosphenus tridentatus (formerly Lampetra conservation and management of Pacific lampreys is lacking. tridentata) are declining in the Columbia River basin, and the use of Pacific lampreys have a complex life history that includes large, main-stem river habitats by larvae of this species is unknown. We used a deepwater electrofisher to explore occupancy, detection, multiple-year larval (ammocoete), migratory juvenile, and adult and habitat use of larval Pacific lampreys and larval Lampetra spp. marine phases (Scott and Crossman 1973). Larvae and juve- in the lower Willamette River, Oregon. We used a generalized ran- niles are strongly associated with stream and river sediments. dom tessellation stratified approach to select sampling quadrats For multiple years after hatching, larvae live burrowed in stream × (30 30 m) in a random, spatially balanced order. Pacific lam- and river sediments, where they consume detritus and organic preys, Lampetra spp., and unidentified lampreys were found in the Willamette River; larvae were detected in all areas except the material by filter feeding (Sutton and Bowen 1994). Larvae Multnomah Channel. We calculated reach- and quadrat-specific metamorphose into juveniles from July to December (McGree detection probabilities and the amount of sampling effort required et al. 2008), and major migrations are made downstream to the for 80% confidence that larval lampreys were in fact absent when Pacific Ocean in the spring and fall (Beamish and Levings 1991). they were not detected. Lampreys were detected in a variety of The sympatric western brook lamprey Lampetra richardsoni areas (although relatively low numbers were collected), including shallow, nearshore areas; midchannel areas (depth up to 16 m); does not have a major migratory or marine life stage, although and anthropogenically affected areas. Detection probabilities (i.e., adults may locally migrate upstream before spawning (Renaud in occupied areas) were 0.07 (reach) and 0.23 (quadrat). The sam- 1997). For both species, the majority of the information on pling effort required for 80% confidence that lampreys were absent habitat preferences of larvae comes from Columbia River basin when undetected was 20 quadrats (in the lower Willamette River tributary systems (Moser and Close 2003; Torgersen and Close reach) and 6 subquadrats (within a quadrat). Differences in lam- prey detection by depth were not observed. A variety of sizes was 2004; Stone and Barndt 2005; Stone 2006) and coastal sys- collected (20–144 mm total length), indicating the likely occurrence tems (Farlinger and Beamish 1984; Russell et al. 1987; Gunckel of multiple ages of larvae. Our study identifies how the occurrence et al. 2009). of larval Pacific lampreys can be quantified with statistical rigor in Larval lampreys are known to occur in sediments of low- a large river (i.e., larger than fourth order [1:100,000 scale]). The gradient streams (smaller than fifth order [1:100,000 scale]; effect of channel management activities on larval lampreys should be considered in efforts to conserve these important species. Torgersen and Close 2004), but their use of habitats in relatively deep areas within large rivers is less known. Larval downstream movement, whether passive or active, occurs year-round (Nur- Pacific lampreys Entosphenus tridentatus (formerly Lam- sall and Buchwald 1972; Gadomski and Barfoot 1998; White petra tridentata) in the Columbia River basin and other areas and Harvey 2003). Anecdotal observations exist regarding have experienced a great decline in abundance, are culturally larval lamprey occurrence in large-river habitats, mainly at important to Native American tribes, and are ecologically hydropower facilities (Moursund et al. 2003; CRITFC 2008), important within the food web; the decline of this species where the larvae become impinged on downstream screens, provides insight into the effect of human actions on ecological are observed in juvenile bypass facilities, or are observed *Corresponding author: jeffrey [email protected] Received March 9, 2011; accepted August 19, 2011 Published online March 12, 2012 305 306 JOLLEY ET AL. during dewatering events. These occurrences are thought to be METHODS associated with downstream migration, and specific collections We estimated occupancy of larval lampreys at several explicit of supposedly migrating ammocoetes have been made in spatial scales within the lower Willamette River by adapting an large-river habitats (Beamish and Youson 1987; Beamish and approach used by Peterson and Dunham (2003) and refined by Levings 1991). Ammocoetes of the sea lamprey Petromyzon the U.S. Fish and Wildlife Service (USFWS; USFWS 2008) marinus have been documented in deepwater habitats within to evaluate patch occupancy and d for bull trout Salvelinus Great Lakes tributaries, in proximity to river mouths (Hansen confluentus. The approach has several requirements: (1) a site- and Hayne 1962; Wagner and Stauffer 1962; Lee and Weise and gear-specific d (assumed or estimated); (2) the probability 1989; Bergstedt and Genovese 1994; Fodale et al. 2003b), and of presence at a predetermined acceptably low level (given no in the large St. Marys River, which connects Lakes Superior detection); and (3) random identification of spatially balanced and Huron (Young et al. 1996). References to other species oc- sample sites that allow estimation of presence and the refinement curring in deepwater or lacustrine habitats are scarce (American of d. brook lamprey L. appendix; Hansen and Hayne 1962). The reach-specific d (dreach) was calculated as the proportion The Willamette River, Oregon, is a large (seventh-order) trib- of 30- × 30-m sampling quadrats that were occupied by larval utary of the Columbia River that encompasses a drainage area lampreys (i.e., larvae were captured) in the lower Willamette of 29,728 km2 (Stanford et al. 2005). Pacific lampreys and west- River, an area known to be occupied. The posterior probability ern brook lampreys inhabit the lower Willamette River, and a of reach occupancy given that a larval lamprey was not detected large portion of the main stem is unimpounded. Nevertheless, was estimated as it is unknown whether the lamprey species use the main-stem C | F · F Willamette and Columbia rivers as rearing areas for larvae in P( 0 ) P( ) P(F | C0) = , addition to using these systems as migration corridors (i.e., re- [P(C0| F ) · P(F )] + [P(C0| ∼ F ) · P(∼ F )] turning adults and outbound juveniles). (1) Sampling of larvae in deepwater (i.e., >1.0 m) areas is a chal- lenge because of specialized gear requirements and presumed where P(F) = the prior probability of larval lamprey presence patchy distributions. Bergstedt and Genovese (1994) success- and C0 = no detection. Although we knew the lower Willamette fully sampled deepwater areas for larval sea lampreys in tribu- River reach was occupied by larval lampreys, a P(F) value taries to the Great Lakes by using a modified electrofisher with of 0.5 (uninformed) was used to inform future study design suction. However, problems associated with the uncertainty in (i.e., P[F|C0]) for areas where larval lamprey presence was detection probability (d) and capture efficiency when sampling unknown. The term P(∼F)(= 1 − P[F]) is the prior probability for distribution and abundance of organisms can be encountered. of species absence, and P(C0|F)(= 1 − d) is the probability In addition, the problem of false absences in estimating occu- of not detecting a species when it actually occurs (Peterson and pancy by species that are rare or patchily distributed has been Dunham 2003). identified (Bayley and Peterson 2001; Peterson and Dunham The lower Willamette River was sampled during March– 2003; MacKenzie et al. 2005). October 2009 from Willamette Falls (rkm 42) to the confluence A goal of this study was to develop a statistically rigorous with the Columbia River at Portland, Oregon (Figure 1); design to evaluate whether larval lampreys occupy main-stem the sampled area included the Multnomah Channel (a braid habitats of a representative large river. In part, rigor can be im- of the Willamette River) and the Portland Harbor Superfund proved by determining d. Knowledge of d can be used to (1) site (rkm 3.2–19.2). A sampling event consisted of using a determine the number of site visits that are required to achieve deepwater electrofisher (Bergstedt and Genovese 1994) in a a specific certainty of lamprey absence (when not detected) and 30- × 30-m quadrat. This quadrat size was selected based on (2) assist in making inferences about lamprey distribution from the previous experience of sea lamprey researchers in the Great collected data. To this end, we sampled the lower Willamette Lakes (M. Fodale, USFWS, personal communication), as their River, which as a whole is known to be occupied by larval sampling approach evolved from systematic to adaptive (Fodale lampreys. In general, we documented the presence or absence et al. 2003a). The configuration of the deepwater electrofisher of larval lampreys throughout the lower Willamette River (i.e., is described by Bergstedt and Genovese (1994); sampling was downstream of Willamette Falls, river kilometer [rkm] 42) and standardized. The bell of the deepwater electrofisher was low- determined d with deepwater electrofishing. Our specific ob- ered from a boat to the river bottom. The electrofisher delivered jectives were to (1) use a deepwater electrofisher to document DC at 3 pulses/s with a 10% duty cycle and a 2:2 pulse train (i.e., whether ammocoetes of Pacific lampreys and Lampetra spp.
Load more

Recommended publications
  • Review of the Lampreys (Petromyzontidae) in Bosnia and Herzegovina: a Current Status and Geographic Distribution
    Review of the lampreys (Petromyzontidae) in Bosnia and Herzegovina: a current status and geographic distribution Authors: Tutman, Pero, Buj, Ivana, Ćaleta, Marko, Marčić, Zoran, Hamzić, Adem, et. al. Source: Folia Zoologica, 69(1) : 1-13 Published By: Institute of Vertebrate Biology, Czech Academy of Sciences URL: https://doi.org/10.25225/jvb.19046 BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Complete website, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/terms-of-use. Usage of BioOne Complete content is strictly limited to personal, educational, and non - commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Downloaded From: https://bioone.org/journals/Journal-of-Vertebrate-Biology on 13 Feb 2020 Terms of Use: https://bioone.org/terms-of-use Journal of Open Acces Vertebrate Biology J. Vertebr. Biol. 2020, 69(1): 19046 DOI: 10.25225/jvb.19046 Review of the lampreys (Petromyzontidae) in Bosnia and Herzegovina:
    [Show full text]
  • Ichthyomyzon Fossor Lethenteron Appendix Synonym: Lampetra
    Endangered and Threatened Animals of Vermont Vermont Natural Heritage Inventory Vermont Fish & Wildlife Department 28 March 2015 The species in the following list are protected by Vermont’s Endangered Species Law (10 V.S.A. Chap. 123). There are 36 state-endangered and 16 state-threatened animals in Vermont. Those with a federal status of Threatened or Endangered are also protected by the Federal Endangered Species Act (P.L. 93-205). For further information contact the Vermont Natural Heritage Inventory, Vermont Fish & Wildlife Department, 1 National Life Drive, Montpelier, VT 05620-3702. (802) 828-1000. Common Name Scientific Name State Status Federal Status Fishes Northern Brook Lamprey Ichthyomyzon fossor E American Brook Lamprey Lethenteron appendix T Synonym: Lampetra appendix Lake Sturgeon Acipenser fulvescens E Stonecat Noturus flavus E Eastern Sand Darter Ammocrypta pellucida T Channel Darter Percina copelandi E Amphibians Fowler's Toad Anaxyrus fowleri E Boreal Chorus Frog Pseudacris maculata E Reptiles Spotted Turtle Clemmys guttata E Spiny Softshell (Turtle) Apalone spinifera T Common Five-lined Skink Plestiodon fasciatus E Synonym: Eumeces fasciatus North American Racer Coluber constrictor T Eastern Ratsnake Pantherophis alleghaniensis T Synonym: Elaphe obsoleta Timber Rattlesnake Crotalus horridus E Mammals Eastern Small-footed Bat Myotis leibii T Little Brown Bat Myotis lucifugus E Northern Long-eared Bat Myotis septentrionalis E LT Indiana Bat Myotis sodalis E LE Common Name Scientific Name State Status Federal Status Tri-colored
    [Show full text]
  • Lamprey, Hagfish
    Agnatha - Lamprey, Kingdom: Animalia Phylum: Chordata Super Class: Agnatha Hagfish Agnatha are jawless fish. Lampreys and hagfish are in this class. Members of the agnatha class are probably the earliest vertebrates. Scientists have found fossils of agnathan species from the late Cambrian Period that occurred 500 million years ago. Members of this class of fish don't have paired fins or a stomach. Adults and larvae have a notochord. A notochord is a flexible rod-like cord of cells that provides the main support for the body of an organism during its embryonic stage. A notochord is found in all chordates. Most agnathans have a skeleton made of cartilage and seven or more paired gill pockets. They have a light sensitive pineal eye. A pineal eye is a third eye in front of the pineal gland. Fertilization of eggs takes place outside the body. The lamprey looks like an eel, but it has a jawless sucking mouth that it attaches to a fish. It is a parasite and sucks tissue and fluids out of the fish it is attached to. The lamprey's mouth has a ring of cartilage that supports it and rows of horny teeth that it uses to latch on to a fish. Lampreys are found in temperate rivers and coastal seas and can range in size from 5 to 40 inches. Lampreys begin their lives as freshwater larvae. In the larval stage, lamprey usually are found on muddy river and lake bottoms where they filter feed on microorganisms. The larval stage can last as long as seven years! At the end of the larval state, the lamprey changes into an eel- like creature that swims and usually attaches itself to a fish.
    [Show full text]
  • New Data on the Geographic Distribution and Ecology of the Ukrainian Brook Lamprey, Eudontomyzon Mariae (Berg, 1931)
    Folia Zool. – 55(3): 282–286 (2006) New data on the geographic distribution and ecology of the Ukrainian brook lamprey, Eudontomyzon mariae (Berg, 1931) 1, 2 3 Boris A. Levin and Juraj HoLčík 1 Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii prospect 33, 119071 Moscow, Russia; e-mail: [email protected] 2 Present address: Institute of Biology of Inland Water, Russian Academy of Sciences, Borok, Yaroslavl’ province, Russia; e-mail: [email protected] 3 Institute of Zoology, Slovak Academy of Sciences, Dúbravská cesta 9, 845 06 Bratislava, Slovak Republic; Present address: Drotárska cesta 19, 811 02 Bratislava, Slovak Republic; e-mail: [email protected] Received 10 March 2006; Accepted 18 August 2006 A b s t r a c t . new records of the Ukrainian brook lamprey Eudontomyzon mariae (Berg, 1931) from the upper tributaries of the both volga (Caspian Sea watershed) and Don (Black Sea watershed) river basins are documented. This significantly extends the range of the Ukrainian brook lamprey eastwards. The Ukrainian brook lamprey and the genus Eudontomyzon are the most distributed species and genus of the lampreys in europe, respectively. Key words: Eudontomyzon mariae, geographic distribution, Volga R. basin, Don R.basin, spawning substrate Introduction The surprising discovery of the Ukrainian brook lamprey Eudontomyzon mariae (Berg, 1931) in the elan’-kadada and Sura rivers in the volga River basin (L e v i n 2001) indicated that the geographical distribution of this species can be far more east than it has been initially assumed (H o l č í k & R e n a u d 1986).
    [Show full text]
  • Ecology of the River, Brook and Sea Lamprey Lampetra Fluviatilis, Lampetra Planeri and Petromyzon Marinus
    Ecology of the River, Brook and Sea Lamprey Lampetra fluviatilis, Lampetra planeri and Petromyzon marinus Conserving Natura 2000 Rivers Ecology Series No. 5 Ecology of the River, Brook and Sea Lamprey Conserving Natura 2000 Rivers Ecology Series No. 5 Peter S Maitland For more information on this document, contact: English Nature Northminster House Peterborough PE1 1UA Tel:+44 (0) 1733 455100 Fax: +44 (0) 1733 455103 This document was produced with the support of the European Commission’s LIFE Nature programme. It was published by Life in UK Rivers, a joint venture involving English Nature (EN), the Countryside Council for Wales (CCW), the Environment Agency (EA), the Scottish Environment Protection Agency (SEPA), Scottish Natural Heritage (SNH), and the Scotland and Northern Ireland Forum for Environmental Research (SNIFFER). © (Text only) EN, CCW, EA, SEPA, SNH & SNIFFER 2003 ISBN 1 85716 706 6 A full range of Life in UK Rivers publications can be ordered from: The Enquiry Service English Nature Northminster House Peterborough PE1 1UA Email: [email protected] Tel:+44 (0) 1733 455100 Fax: +44 (0) 1733 455103 This document should be cited as: Maitland PS (2003). Ecology of the River, Brook and Sea Lamprey. Conserving Natura 2000 Rivers Ecology Series No. 5. English Nature, Peterborough. Technical Editor: Lynn Parr Series Ecological Coordinator: Ann Skinner Cover design: Coral Design Management, Peterborough. Printed by Astron Document Services, Norwich, on Revive, 75% recycled post-consumer waste paper, Elemental Chlorine Free. 1M. Cover photo: Erling Svensen/UW Photo Ecology of River, Brook and Sea Lamprey Conserving Natura 2000 Rivers This account of the ecology of the river, brook and sea lamprey (Lampetra fluviatilis, L.
    [Show full text]
  • Petromyzontidae) in Europe
    Genetic and morphological diversity of the genus Lampetra (Petromyzontidae) in Europe Catarina Sofia Pereira Mateus Tese apresentada à Universidade de Évora para obtenção do Grau de Doutor em Biologia ORIENTADORES: Professor Doutor Pedro Raposo de Almeida Doutora Maria Judite Alves ÉVORA, DEZEMBRO DE 2013 INSTITUTO DE INVESTIGAÇÃO E FORMAÇÃO AVANÇADA Genetic and morphological diversity of the genus Lampetra (Petromyzontidae) in Europe Catarina Sofia Pereira Mateus Tese apresentada à Universidade de Évora para obtenção do Grau de Doutor em Biologia ORIENTADORES: Professor Doutor Pedro Raposo de Almeida Doutora Maria Judite Alves ÉVORA, DEZEMBRO DE 2013 Aos meus pais Acknowledgements Agradecimentos No final desta etapa gostaria de dedicar algumas palavras de agradecimento a várias pessoas e instituições que de alguma forma contribuíram para a realização desta Dissertação. Estou especialmente grata à minha família pelo apoio e carinho e aos meus orientadores pelo encorajamento, amizade e conhecimento partilhado. Em primeiro lugar quero agradecer aos co-orientadores do meu Doutoramento Professor Pedro Raposo de Almeida e Doutora Maria Judite Alves. Ao Professor Pedro Raposo de Almeida pela sua dedicação, entusiasmo, e postura profissional, sempre descontraída e otimista, que foram fundamentais para chegar ao final desta etapa. Agradeço a confiança que sempre depositou em mim e o facto de me ter inserido no mundo da ciência, e em particular no fascinante mundo das lampreias. A sua exigência científica e o rigor que incute a quem consigo trabalha foram essenciais para o meu crescimento científico. Obrigada por colocar os seus estudantes sempre em primeiro lugar. À Doutora Maria Judite Alves pelo seu incansável apoio, pela enorme dedicação a este projeto, pelas discussões de ideias e confiança depositada no meu trabalho.
    [Show full text]
  • European River Lamprey Lampetra Fluviatilis in the Upper Volga: Distribution and Biology
    European River Lamprey Lampetra Fluviatilis in the Upper Volga: Distribution and Biology Aleksandr Zvezdin AN Severtsov Institute of Ecology and Evolution Aleksandr Kucheryavyy ( [email protected] ) AN Severtsov Institute of Ecology and Evolution https://orcid.org/0000-0003-2014-5736 Anzhelika Kolotei AN Severtsov Institute of Ecology and Evolution Natalia Polyakova AN Severtsov Institute of Ecology and Evolution Dmitrii Pavlov AN Severtsov Institute of Ecology and Evolution Research Keywords: Petromyzontidae, behavior, invasion, distribution, downstream migration, upstream migration Posted Date: February 12th, 2021 DOI: https://doi.org/10.21203/rs.3.rs-187893/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/19 Abstract After the construction of the Volga Hydroelectric Station and other dams, migration routes of the Caspian lamprey were obstructed. The ecological niches vacated by this species attracted another lamprey of the genus Lampetra to the Upper Volga, which probably came from the Baltic Sea via the system of shipways developed in the 18 th and 19 th centuries. Based on collected samples and observations from sites in the Upper Volga basin, we provide diagnostic characters of adults, and information on spawning behavior. Silver coloration of Lampetra uviatilis was noted for the rst time and a new size-related subsample of “large” specimens was delimited, in addition to the previously described “dwarf”, “small” and “common” adult resident sizes categories. The three water systems: the Vyshnii Volochek, the Tikhvin and the Mariinskaya, are possible invasion pathways, based on the migration capabilities of the lampreys. Dispersal and colonization of the Caspian basin was likely a combination of upstream and downstreams migrations.
    [Show full text]
  • Western Brook Lamprey (Lampetra Richardsoni) Found in a Small Stream on the East Central Coast of Vancouver Island, British Columbia
    COSEWIC Assessment and Status Report on the Western Brook Lamprey Lampetra richardsoni Morrison Creek Population in Canada ENDANGERED 2010 COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC. 2010. COSEWIC assessment and status report on the Western Brook Lamprey Lampetra richardsoni, Morrison Creek Population, in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. x + 27 pp. (www.sararegistry.gc.ca/status/status_e.cfm). Previous report(s): COSEWIC. 2000. COSEWIC assessment and update status report on the Morrison Creek Lamprey Lampetra richardsoni in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vii + 14 pp. (www.sararegistry.gc.ca/status/status_e.cfm). Beamish, R.J., J.H. Youson and L.A. Chapman. 1999. COSEWIC status report on the Morrison Creek Lamprey Lampetra richardsoni in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. 1-14 pp. Production note: COSEWIC acknowledges Mike Pearson for writing the updated status report on the Western Brook Lamprey, Lampetra richardsoni, prepared under contract with Environment Canada. The contractor’s involvement with the writing of the status report ended with the acceptance of the provisional report. Any modifications to the status report during the subsequent preparation of the 6-month interim and 2- month interim status reports were overseen by Eric Taylor, Freshwater Fishes Specialist Subcommittee Co-chair.
    [Show full text]
  • Distribution, Morphology and Life History of the Least Brook Lamprey, Lampetra Aepyptera (Pisces: Petromyzontidae), in Kentucky
    Distribution, Morphology and Life History of the Least Brook Lamprey, Lampetra aepyptera (Pisces: Petromyzontidae), in Kentucky STEPHEN J. WALSH AND BROOKS M. BURR Department of Zoology, Southern Illinois University at Carbondale, Carbondale, Illinois 62901 ABSTRACT.— Kentucky distribution records for the least brook lamprey, Lampetra aepyptera (Abbott), show that it is the most abundant and widespread lamprey in the state, inhabiting most major drainages where suitable habitat is available. Morphological and denti- tion data from over 220 specimens reveal that the recently described Lethenteron meridionale, from Tennessee, Alabama and Georgia, is a synonym of L. aepyptera. Interdrainage variation in meristic and mor- phometric characters of L. aepyptera falls within the normal range of variability for the species in the Ohio Valley. INTRODUCTION Although a considerable distributional and ecological literature exists for the least brook lamprey, Lampetra aepyptera (Abbott), little information has been published on its occurrence and life history in Kentucky. A few distributional records for the species in Kentucky were reported by Branson (1970), Burr and Mayden (1979), Burr (1980), and Clay (1975). The only information on its natural history in the state was summarized by Clay (1975), who included original observations on the demise of a population in Knob Creek, southwest of Louisville. The most complete studies on the life history of L. aepyptera were done in Maryland (Seversmith 1953) and Delaware (Rohde et al. 1976). Branson (1970), Clay (1975), and Clay and Carter (1957) briefly described its morphological characteristics in Kentucky. In their description of Lethenteron meridionale, Vladykov et al. (1975) gave the most complete morphological description of L.
    [Show full text]
  • ARCTIC LAMPREY Lampetra Camtschatica Tilesius, 1811 (Petromyzontidae)
    ARCTIC LAMPREY Lampetra camtschatica Tilesius, 1811 (Petromyzontidae) Global rank G4 (05Sep1996) State rank S4 (21Jun2005) State rank reasons The most commonly occurring lamprey in Alaska; widely distributed. Overall abundance and trends unknown, but often found with some local distinguishing characteristics at the species level, abundance. Threats are minimal, although a but arrangement of teeth is most useful at the commercial fishery for this species was initiated generic level; supraoral tooth bar with 2 large on the Lower Yukon River in 2003. Harvested for cusps, presence of posterial teeth, and sharp, subsistence use although level of harvest is well-developed tongue teeth. Ammocoetes currently undocumented. Systematics needs (larvae) usually gray above and lighter below study. (McPhail and Lindsey 1970). Length (cm) range 13-36, max. 62 Taxonomy Systematics and nomenclature debated; Reproduction previously recognized as Lampetra japonica; Spawning occurs in spring, generally late May- current correct name is L. camtschatica (see early July at water temperatures of 12-15°C sources in Mecklenburg et al. 2002). Subgenus is (Heard 1966). Female may spawn with more than Lethenteron, which has been regarded as a one male. Up to 100,000 eggs laid by female; distinct genus by some authors (but not by Page eggs hatch within a few weeks. Ammocoete stage and Burr 1991 or Robins et al. 1991). Closely lasts at least 1 year, possibly up to 4 years. related and likely ancestral to the nonparasitic Metamorphosis occurs in fall (Hardisty and Potter American brook lamprey, Lampetra appendix 1971, Scott and Crossman 1973). (synonym: L. lamottenii) and Alaskan brook lamprey, L.
    [Show full text]
  • Complete Mitochondrial Genomes of the Anadromous and Resident Forms of the Lamprey Lethenteron Camtschaticum
    UC Irvine UC Irvine Previously Published Works Title Complete mitochondrial genomes of the anadromous and resident forms of the lamprey Lethenteron camtschaticum. Permalink https://escholarship.org/uc/item/2sz6q411 Journal Mitochondrial DNA. Part A, DNA mapping, sequencing, and analysis, 27(3) ISSN 2470-1394 Authors Balakirev, Evgeniy S Parensky, Valery A Ayala, Francisco J Publication Date 2016-05-01 DOI 10.3109/19401736.2014.961143 Peer reviewed eScholarship.org Powered by the California Digital Library University of California http://informahealthcare.com/mdn ISSN: 1940-1736 (print), 1940-1744 (electronic) Mitochondrial DNA, Early Online: 1–2 ! 2014 Informa UK Ltd. DOI: 10.3109/19401736.2014.961143 MITOGENOME ANNOUNCEMENT Complete mitochondrial genomes of the anadromous and resident forms of the lamprey Lethenteron camtschaticum Evgeniy S. Balakirev1,2, Valery A. Parensky2, and Francisco J. Ayala1 1Department of Ecology and Evolutionary Biology, University of California, Irvine, CA, USA and 2A. V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch, Russian Academy of Science, Vladivostok, Russia Abstract Keywords The complete mitochondrial genomes were sequenced in anadromous and resident forms of Anadromous and resident forms, complete the lamprey Lethenteron camtschaticum. The sizes of the genomes in the two isolates are 16,245 mitochondrial genome, Lampetra, and 16,295 bp. The gene arrangement, base composition, and size of the two sequenced lethenteron, lethenteron camtschaticum, genomes are similar to the lamprey genomes previously published. The total sequence northern hemisphere lampreys divergence between the two genomes is very low (0.14%), supporting conspecificity of the anadromous and resident forms of L. camtschaticum. Comparison of the genomes sequenced in History the present work with other genomes of lampreys available in GenBank, reveals two distinct evolutionary lineages with a genera level of divergence among the lampreys of eastern Eurasia.
    [Show full text]
  • INTRASPECIFIC PHYLOGEOGRAPHY of the LEAST BROOK LAMPREY (LAMPETRA AEPYPTERA) a Thesis Presented to the Faculty of the College Of
    INTRASPECIFIC PHYLOGEOGRAPHY OF THE LEAST BROOK LAMPREY (LAMPETRA AEPYPTERA) A thesis presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Master of Science Holly R. Martin March 2006 This thesis entitled INTRASPECIFIC PHYLOGEOGRAPHY OF THE LEAST BROOK LAMPREY (LAMPETRA AEPYPTERA) by HOLLY R. MARTIN has been approved for the Department of Biological Sciences and the College of Arts and Sciences by Matthew M. White Associate Professor of Biological Sciences Benjamin M. Ogles Interim Dean, College of Arts and Sciences MARTIN, HOLLY R. M.S. March 2006. Program in Molecular and Cellular Biology. Department of Biological Sciences. Intraspecific Phylogeography of the Least Brook Lamprey (Lampetra aepyptera) (64pp.) Director of Thesis: Matthew M. White The Least brook lamprey (LBL), Lampetra aepyptera, is a nonparasitic fish species native to the eastern United States found in small streams in the Mississippi, Mobile Basin, and Atlantic slope drainage systems. The focus of this project is to identify the geographic pattern of mitochondrial DNA variation and to recognize phylogenetically distinct clades within this species. I investigated the phylogeography of the LBL by sequencing 351 base pairs of the mitochondrial ND3 gene and approximately 650 bases of the mitochondrial control region. Samples from 21 populations throughout the LBL’s distribution were sequenced. The combined ND3 and control region data sets identified 23 unique haplotypes. Ten highly differentiated clades detected correspond to drainage systems and/or geographic location. My data suggest a rapid diversification during the late Miocene and/or Pliocene, and that the LBL consists of several undescribed species.
    [Show full text]