DOCSLIB.ORG

Population Dynamics of Daphnia Galeata in the Biomanipulated Bautzen Reservoir: Life History Strategies Against Food Deficiency and Predation

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Population Dynamics of Daphnia Galeata in the Biomanipulated Bautzen Reservoir: Life History Strategies Against Food Deficiency and Predation Institut für Hydrobiologie, Technische Universität Dresden Population dynamics of Daphnia galeata in the biomanipulated Bautzen Reservoir: life history strategies against food deficiency and predation Dissertation zur Erlangung des akademischen Grades doctor rerum naturalium (Dr. rer. nat.) an der Fakultät Forst-, Geo- und Hydrowissenschaften der Technischen Universität Dresden vorgelegt von Stephan Hülsmann aus Melle Dresden 2000 Gutachter: Prof. Dr. Jürgen Benndorf, Institut für Hydrobiologie, Technische Universität Dresden Prof. Dr. Winfried Lampert, Max-Planck-Institut für Limnologie, Plön PD Dr. Thomas Mehner, Institut für Gewässerökologie und Binnenfischerei, Berlin Tag der mündlichen Prüfung: 27. Februar 2001 Contents Table of contents Abstract.......................................................................................................................................1 1 General introduction...........................................................................................................3 2 Introduction to the biomanipulation experiment in Bautzen Reservoir..............................7 3 Overview: Bottom-up and top-down factors influencing population dynamics of Daphnia galeata in Bautzen Reservoir ..............................................................................9 3.1 Introduction.................................................................................................................9 3.2 Methods ....................................................................................................................10 3.3 Results ......................................................................................................................12 3.4 Discussion.................................................................................................................19 4 Food limitation of fecundity and reproduction of Daphnia galeata as determined in field samples..........................................................................................23 4.1 Introduction...............................................................................................................23 4.2 Methods ....................................................................................................................24 4.3 Results ......................................................................................................................27 4.4 Discussion.................................................................................................................36 5 Life history and juvenile growth of Daphnia galeata under natural food conditions ......45 5.1 Introduction...............................................................................................................45 5.2 Methods ....................................................................................................................46 5.3 Results ......................................................................................................................47 5.4 Discussion.................................................................................................................56 6 Demography and life history characteristics of Daphnia galeata as related to food conditions and age-0 fish predation .....................................................................61 6.1 Introduction...............................................................................................................61 6.2 Methods ....................................................................................................................62 6.3 Results ......................................................................................................................62 6.4 Discussion.................................................................................................................70 7 Mortality pattern of Daphnia galeata in Bautzen Reservoir: The importance of non-consumptive mortality ................................................................77 7.1 Introduction...............................................................................................................77 7.2 Methods ....................................................................................................................79 7.3 Results ......................................................................................................................82 7.4 Discussion.................................................................................................................88 8 General discussion and conclusions .................................................................................93 References...............................................................................................................................111 Contents Danksagung ............................................................................................................................127 List of publications .................................................................................................................129 Abstract Abstract The population dynamics and demography of Daphnia galeata was analysed in a five year study in the biomanipulated Bautzen Reservoir. Samples were taken two times a week during the period May-July in the pelagic zone of this highly eutrophic water. Major bottom-up and top-down factors were determined during the study period and analysed with regard to their influence on Daphnia dynamics and life history. Field data on fecundity and population structure of D. galeata were combined with results from life table and growth experiments performed under approximately in situ conditions to gain insight into the mechanisms leading to a midsummer decline of this cladoceran species which dominates the zooplankton community in Bautzen Reservoir. Two main patterns of Daphnia dynamics emerged: In years without a midsummer decline the population increased slowly in spring, starting from low densities. High water transparency was observed already during the build-up of the population of D. galeata. Despite considerable fluctuations, Daphnia abundance remained on a high level throughout summer. In years with a midsummer decline the population started from relatively high densities in early May and more than doubled during one week. Peak densities were reached before the clear-water stage emerged. At the end of this period the population declined to low values which lasted for the rest of the summer. Fecundity of the Population of D. galeata declined, whereas the mean egg volume increased at the beginning of the clear-water stage as a result of declining food levels. The size at maturity (SAM) remained high during this period. Additionally, juvenile growth was reduced and the age at maturity was retarded. Survival probability was low for those daphnids born shortly before or during the clear-water stage compared to those born later. It can be concluded from these results that recruitment to adult stages is strongly reduced during the clear-water stage. The end of this period is marked by an alternation in generations. Only at that time can SAM be reduced because the new generation of adults matures at a smaller size, carrying small eggs. A high impact of non-predatory adult mortality can be expected when the population is dominated by a strong peak-cohort during the clear-water stage according to recruitment patterns during the build-up of the population. The most drastic decline both of Daphnia abundance and SAM was observed in those years when the biomass of juvenile fish exceeded 20 kg ha-1 at the end of the clear-water stage. Due to gape-size limitation juvenile fish mainly feed on juvenile daphnids during this period and thus, they reinforce bottom-up effects on the Daphnia population. When fish change their size selection towards adult daphnids at the time when the new generation takes over, this seems to represent the worst case for the Daphnia population. Consequently, the timing between bottom-up effects and the feeding pressure of juvenile fish determines the extent of the decline. 1 Chapter 1 1 General introduction The genus Daphnia has attracted scientific interest ever since the 17th century (reviewed by Edmondson 1987) and is considered as a model organism in aquatic ecology (Lampert and Sommer 1993). The most obvious reason for this attractiveness is that daphnids dominate the zooplankton community in many temperate meso- to eutrophic water bodies. Apart from that, practical reasons may explain the popularity. Daphnia has an appropriate size for being used in laboratory cultures, it is easy to cultivate and has short generation times. As an (relatively) unspecific filter feeder, able to feed on a broad size range of particles in the water (Burns 1968; Wagner 1998), Daphnia is able to increase water transparency significantly. Uhlmann (1954) was the first to notice that high densities of Daphnia may turn waste water ponds from a turbid into a clear-water state due to their filtering activity. The high importance of daphnids for the development of a clear-water stage has been confirmed in many studies (see review by Lampert 1988 a). This potentially high grazing pressure of Daphnia on phytoplankton and other seston-particles has drawn considerable attraction to this particular group of cladocera in biomanipulation experiments. Biomanipulation is an ecotechnological strategy to improve water quality of eutroficated systems via top-down manipulation of the food web (Shapiro
Load more

Recommended publications
  • Daphnia Magna and Daphnia Longispina)
    Ann. Limnol. - Int. J. Lim. 2007, 43 (1), 13-20 Salinity effects on survival and life history of two freshwater cladocerans (Daphnia magna and Daphnia longispina) A.M.M. Gonçalves1,2*, B.B. Castro1, M. A. Pardal2, F. Gonçalves1 1 Departamento de Biologia da Universidade de Aveiro & Centro de Estudos do Ambiente e do Mar (CESAM), Campus Universitário de Santiago, 3810-193 Aveiro, Portugal 2 IMAR, Departamento de Zoologia, Universidade de Coimbra, 3004-517 Coimbra, Portugal Salinity is a serious threat to freshwater ecosystems, particularly those near coastal areas. An increase in salinity produces drastic changes in community structure of freshwaters, sometimes in an irreversible fashion. Thus, freshwater species must cope with salinity stress in a manner proportional to their degree of tolerance. Bearing this in mind, we studied the acute and chronic effects of different salinity concentrations in two species of cladocerans: Daphnia magna Straus, a standard test organism, and Daphnia longispina O. F. Müller, an autochthonous species. Salinity experiments were based on successive dilutions of a stock solution of NaCl in a synthetic medium. The results showed that D. magna is more tolerant than D. longispina, both in acute (EC50 5.9 and 2.9 g/L, respectively) and chronic (EC50 5.0 and 2.2 g/L, correspondingly) exposures. In the chronic exposure, salinity caused a significant reduction in fecundity and a developmental delay (increase in age at first reproduction), as well as a decrease in the growth rate of daphnids. However, these effects were mainly observed at salinity concentrations where morta- lity occurred. Keywords: saline stress, sodium chloride, toxicity tests, freshwater zooplankton, life history.
    [Show full text]
  • Water Flea Daphnia Sp. ILLINOIS RANGE
    water flea Daphnia sp. Kingdom: Animalia FEATURES Phylum: Arthropoda Water fleas are compressed side to side. The body Class: Branchiopoda of these microscopic organisms is enclosed in a Order: Cladocera transparent shell that usually has a spine at the end. Four, five or six pairs of swimming legs are present. Family: Daphniidae One pair of antennae is modified for swimming and ILLINOIS STATUS helps to propel the organism through the water. The end of the female’s intestine is curled, while the end common, native of the male’s intestine is straight. Water fleas have a single, compound eye. BEHAVIORS Water fleas can be found throughout Illinois in almost any body of water. They prefer open water. These small arthropods migrate up in the water at night and down in the day, although a few live on the bottom. Water flea populations generally consist only of females in the spring and summer. Reproduction at these times is by parthenogenesis (males not required for eggs to develop). In the fall, males are produced, and they mate with the females. Fertilized eggs are deposited to “rest” on the bottom until hatching in the spring or even many years later. Water fleas eat bacteria and algae. They have a life span of several weeks. ILLINOIS RANGE © Illinois Department of Natural Resources. 2021. Biodiversity of Illinois. Unless otherwise noted, photos and images © Illinois Department of Natural Resources. © Paul Herbert female with eggs Aquatic Habitats bottomland forests; lakes, ponds and reservoirs; Lake Michigan; marshes; peatlands; rivers and streams; swamps; temporary water supplies; wet prairies and fens Woodland Habitats bottomland forests; southern Illinois lowlands Prairie and Edge Habitats none © Illinois Department of Natural Resources.
    [Show full text]
  • Fagutredning, Prosjekt Nr
    Müller - Sars Selskapet – Drøbak Daphnia lacustris (v.ø.), D. l. alpina (h.ø.): store, lavpredasjonsdaphnier og Lough Slieveaneena, Irland; oceanisk lavpredasjoninnsjø med bare ørret og store D. longispina Vedvarende menneskeindusert spredning av bredspektret ferskvannsfisk til og internt i Norge: et holarktisk, økologisk perspektiv Rapport nr. 10-2009 Drøbak 2009 ISBN: 978-82-8030-003-4 Ekstrakt Menneskeindusert spredning av fisk med bredspektret fødevalg, som karpefisk og gjedde, påvirker nå følsomme økosystemer i store deler av Norge. Mens en pest-art som ørekyte (Phoxinus phoxinus) kan leve over et meget bredt temperaturområde, og finnes like vanlig i høyfjellet som i karpefiskområder i lavlandet og på kontinentet, har andre karpefisk og nordlig gjedde (Esox lucius) vanligvis et trangere temperaturområde, slik som de siste spredningsartene i Norge: sørv (Scardinius erythrophthalmus), suter (Tinca tinca) og regnlaue (Leucaspius delineatus). Arter som karpe, mort, karuss, gullvederbuk og stingsild kan og også spres med menneskers hjelp. I tillegg ble mataukfisk som kanadisk bekkerøye spredd under perioden med forsuring i Norge og regnbueørret er satt ut ulike steder i landet gjennom flere tiår. Spredning av ørekyte og de tidligere utsettingene av faunafremmede laksefisk blir gitt stor oppmerksomhet i forvaltning og forskning, mens spredning av øvrige karpefisk og gjedde til ekstremt sjeldne økosystemer i norsk lavland får utvikle seg relativt fritt i det ”oppvirvlede støvet” rundt ørekyte og laksefiskene. På grunn av landets steile topografi og lange, sammenhengende fjellkjeder mot invasjonssentre, og -regioner, var det alltid problematisk for ferskvannsfisk å spre seg over hele Norge, før menneskene ankom. Etter siste istid har imidlertid menneskene båret fisk over det meste av landet.
    [Show full text]
  • Annual Report 2012 Report Annual Science and Technology Aquatic of Institute Federal Swiss – Eawag
    Eawag – Swiss Federal Institute of Aquatic Science and Technology Eawag Überlandstrasse 133 2011 P.O. Box 611 8600 Dübendorf Switzerland Phone +41 (0)58 765 55 11 Fax +41 (0)58 765 50 28 AnnualReport 2012 www.eawag.ch [email protected] Jahresbericht Eawag Annual Report 2012 Eawag, the Swiss Federal Institute of Aquatic Science and Technology, is part of the ETH Domain. This The Annual Report 2012 presents only a small selection comprises the Swiss Federal Institutes of Technology in Zurich (ETHZ) and Lausanne (EPFL), Eawag of Eawag’s research, teaching and consulting activities. A database of all publications by Eawag researchers and three other independent, application-oriented research institutes – the Paul Scherrer Institute (including article summaries) is available online at: (PSI), the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) and the Materials www.lib4ri.ch/institutional-bibliography/eawag.html. Open Science and Technology Research Insti tution (Empa). Nationally rooted and internationally networked, access publications can be downloaded free of charge. Eawag is concerned with concepts and technologies for the sustainable management of water The Annual Report is also available in German. resources and aquatic ecosystems. In cooperation with universities, other research centres, public authorities, the private sector and NGOs, Eawag strives to harmonize ecological, economic and social interests in water, providing a link between science and practical applications. In total 455 staff are employed in research, teaching and consulting at the Dübendorf (Zurich) and Kastanienbaum (Lucerne) sites. Publication details Editing: Andres Jordi / Contributors: Fabio Bergamin, Andri Bryner, Michael Keller, Thomas Lichtensteiger, Beatrix Mühlethaler, Anke Poiger, Annette Ryser, Anke Schäfer, Evelin Vogler, Felix Würsten / Translation: Jeff Acheson / Layout: Peter Penicka, Peter Nadler © Eawag, May 2013 Reproduction is permissible with citation of the source: “Eawag – aquatic research: Annual Report 2012”.
    [Show full text]
  • Littoral Cladocera (Crustacea: Branchiopoda) from the Altai Mountain Lakes, with Remarks on the Taxonomy of Chydorus Sphaericus (O.F
    Arthropoda Selecta 12 (34): 171182 © ARTHROPODA SELECTA, 2003 Littoral Cladocera (Crustacea: Branchiopoda) from the Altai mountain lakes, with remarks on the taxonomy of Chydorus sphaericus (O.F. Müller, 1776) Ëèòîðàëüíûå Cladocera (Crustacea: Branchiopoda) ãîðíûõ îçåð Àëòàÿ ñ òàêñîíîìè÷åñêèìè çàìåòêàìè î Chydorus sphaericus (O.F. Müller, 1776) Mariya A. Belyaeva Ì.À. Áåëÿåâà A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninsky prospekt 33, Moscow 119071 Russia. Èíñòèòóò ïðîáëåì ýêîëîãèè è ýâîëþöèè èì. À. Í. Ñåâåðöîâà ÐÀÍ, Ëåíèíñêèé ïð-ò, 33, Ìîñêâà 119071 Ðîññèÿ. e-mail: [email protected]. KEY WORDS: faunistics, Cladocera, Chydorus sphaericus, Altai, mountain lakes, littoral zone. ÊËÞ×ÅÂÛÅ ÑËÎÂÀ: ôàóíèñòèêà, Cladocera , Chydorus sphaericus, Àëòàé, ãîðíûå îçåðà, ëèòîðàëüíàÿ çîíà. ABSTRACT: The faunistic data on Cladocera (Crus- faunistic survey on Cladocera was made by Sars and tacea) of the Altai Mountains are summarized from published in two papers [Sars, 1903a, b]. There were published and the authors records. The latter include also a few studies on zooplankton, some of which data on 18 lakes situated between 450 and 2700 m a.s.l. contained occasional records of littoral species [Rylov, Of 22 species of littoral cladocerans, which are mostly 1949; Shipunova, 1991; Zuykova, 1998; Vesnina et al., eurytopic and widely distributed, five are recorded for 1999; Popov et al., 2003]. All the species so far recorded the region for the first time. Cluster analysis revealed from the Altai Mountains are widely distributed, occur- three groups of habitats that differ in their cladoceran ring in lowlands as well, and a sole species the species composition.
    [Show full text]
  • Cladocera (Crustacea: Branchiopoda) of the South-East of the Korean Peninsula, with Twenty New Records for Korea*
    Zootaxa 3368: 50–90 (2012) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2012 · Magnolia Press ISSN 1175-5334 (online edition) Cladocera (Crustacea: Branchiopoda) of the south-east of the Korean Peninsula, with twenty new records for Korea* ALEXEY A. KOTOV1,2, HYUN GI JEONG2 & WONCHOEL LEE2 1 A. N. Severtsov Institute of Ecology and Evolution, Leninsky Prospect 33, Moscow 119071, Russia E-mail: [email protected] 2 Department of Life Science, Hanyang University, Seoul 133-791, Republic of Korea *In: Karanovic, T. & Lee, W. (Eds) (2012) Biodiversity of Invertebrates in Korea. Zootaxa, 3368, 1–304. Abstract We studied the cladocerans from 15 different freshwater bodies in south-east of the Korean Peninsula. Twenty species are first records for Korea, viz. 1. Sida ortiva Korovchinsky, 1979; 2. Pseudosida cf. szalayi (Daday, 1898); 3. Scapholeberis kingi Sars, 1888; 4. Simocephalus congener (Koch, 1841); 5. Moinodaphnia macleayi (King, 1853); 6. Ilyocryptus cune- atus Štifter, 1988; 7. Ilyocryptus cf. raridentatus Smirnov, 1989; 8. Ilyocryptus spinifer Herrick, 1882; 9. Macrothrix pen- nigera Shen, Sung & Chen, 1961; 10. Macrothrix triserialis Brady, 1886; 11. Bosmina (Sinobosmina) fatalis Burckhardt, 1924; 12. Chydorus irinae Smirnov & Sheveleva, 2010; 13. Disparalona ikarus Kotov & Sinev, 2011; 14. Ephemeroporus cf. barroisi (Richard, 1894); 15. Camptocercus uncinatus Smirnov, 1971; 16. Camptocercus vietnamensis Than, 1980; 17. Kurzia (Rostrokurzia) longirostris (Daday, 1898); 18. Leydigia (Neoleydigia) acanthocercoides (Fischer, 1854); 19. Monospilus daedalus Kotov & Sinev, 2011; 20. Nedorchynchotalona chiangi Kotov & Sinev, 2011. Most of them are il- lustrated and briefly redescribed from newly collected material. We also provide illustrations of four taxa previously re- corded from Korea: Sida crystallina (O.F.
    [Show full text]
  • Taxonomic Atlas of the Water Fleas, “Cladocera” (Class Crustacea) Recorded at the Old Woman Creek National Estuarine Research Reserve and State Nature Preserve, Ohio
    Taxonomic Atlas of the Water Fleas, “Cladocera” (Class Crustacea) Recorded at the Old Woman Creek National Estuarine Research Reserve and State Nature Preserve, Ohio by Jakob A. Boehler, Tamara S. Keller and Kenneth A. Krieger National Center for Water Quality Research Heidelberg University Tiffin, Ohio, USA 44883 January 2012 Taxonomic Atlas of the Water Fleas, “Cladocera” (Class Crustacea) Recorded at the Old Woman Creek National Estuarine Research Reserve and State Nature Preserve, Ohio by Jakob A. Boehler, Tamara S. Keller* and Kenneth A. Krieger Acknowledgements The authors are grateful for the assistance of Dr. David Klarer, Old Woman Creek National Estuarine Research Reserve, for providing funding for this project, directing us to updated taxonomic resources and critically reviewing drafts of this atlas. We also thank Dr. Brenda Hann, Department of Biological Sciences at the University of Manitoba, for her thorough review of the final draft. This work was funded under contract to Heidelberg University by the Ohio Department of Natural Resources. This publication was supported in part by Grant Number H50/CCH524266 from the Centers for Disease Control and Prevention. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of Centers for Disease Control and Prevention. The Old Woman Creek National Estuarine Research Reserve in Ohio is part of the National Estuarine Research Reserve System (NERRS), established by Section 315 of the Coastal Zone Management Act, as amended. Additional information about the system can be obtained from the Estuarine Reserves Division, Office of Ocean and Coastal Resource Management, National Oceanic and Atmospheric Administration, U.S.
    [Show full text]
  • Daphnia As an Emerging Model for Toxicological Genomics Joseph R
    165 Daphnia as an emerging model for toxicological genomics Joseph R. Shaw1,Ã, Michael E. Pfrender2, Brian D. Eads3, Rebecca Klaper4, Amanda Callaghan5, Richard M. Sibly5, Isabelle Colson6, Bastiaan Jansen7, Donald Gilbert3 and John K. Colbourne8 1The School of Public and Environmental Affairs, Bloomington, IN 47405, USA 2Department of Biology, Utah State University, 5305 Old Main Hill Road, Logan, UT 84322, USA 3Department of Biology, Indiana University, Bloomington, IN 47405, USA 4Great Lakes WATER Institute, University of Wisconsin-Milwaukee, 600 East Greenfield Ave, Milwaukee, Wisconsin 53204, USA 5School of Biological Sciences, University of Reading, PO Box 68, Reading RG6 6AJ, UK 6Zoologisches Institut, Universita¨t Basel, Biozentrum/Pharmazentrum, Klingelbergstrasse 50, 4056 Basel, Switzerland 7Laboratory of Aquatic Ecology, Katholieke Universiteit Leuven, Ch. De Beriostraat 32, B-3000, Leuven, Belgium 8The Center for Genomics and Bioinformatics, Indiana University, Bloomington, IN 47405, USA Abstract. Daphnia are already an established model species in toxicology. This freshwater crustacean is used commonly for environmental monitoring of pollutants around the globe and plays an important role in establishing regulatory criteria by government agencies (e.g., US EPA, Environment Canada organization for Economic Cooperation and Development, Environment Agency of Japan). Consequently, daphniids represent 8% of all experimental data for aquatic animals within the toxicological databases (Denslow et al., 2007). As such, their incorporation
    [Show full text]
  • Food Web Topology and Parasites in the Pelagic Zone of a Subarctic Lake
    Journal of Animal Ecology 2009, 78, 563–572 doi: 10.1111/j.1365-2656.2008.01518.x FoodBlackwell Publishing Ltd web topology and parasites in the pelagic zone of a subarctic lake Per-Arne Amundsen1*, Kevin D. Lafferty2, Rune Knudsen1, Raul Primicerio1, Anders Klemetsen1 and Armand M. Kuris3 1Department of Aquatic BioSciences, Norwegian College of Fishery Science, University of Tromsø, N-9037 Tromsø, Norway; 2US Geological Survey, Western Ecological Research Center, c/o Marine Science Institute, UC Santa Barbara, CA 93106, USA; and 3Department of Ecology, Evolution and Marine Biology, UC Santa Barbara, CA 93106, USA Summary 1. Parasites permeate trophic webs with their often complex life cycles, but few studies have included parasitism in food web analyses. Here we provide a highly resolved food web from the pelagic zone of a subarctic lake and explore how the incorporation of parasites alters the topology of the web. 2. Parasites used hosts at all trophic levels and increased both food-chain lengths and the total number of trophic levels. Their inclusion in the network analyses more than doubled the number of links and resulted in an increase in important food-web characteristics such as linkage density and connectance. 3. More than half of the parasite taxa were trophically transmitted, exploiting hosts at multiple trophic levels and thus increasing the degree of omnivory in the trophic web. 4. For trophically transmitted parasites, the number of parasite–host links exhibited a positive correlation with the linkage density of the host species, whereas no such relationship was seen for nontrophically transmitted parasites. Our findings suggest that the linkage density of free-living species affects their exposure to trophically transmitted parasites, which may be more likely to adopt highly connected species as hosts during the evolution of complex life cycles.
    [Show full text]
  • A New Species in the Daphnia Curvirostris (Crustacea: Cladocera)
    JOURNAL OF PLANKTON RESEARCH VOLUME 28 NUMBER 11 PAGES 1067–1079 2006 j j j j A new species in the Daphnia curvirostris (Crustacea: Cladocera) complex from the eastern Palearctic with molecular phylogenetic evidence for the independent origin of neckteeth ALEXEY A. KOTOV1*, SEIJI ISHIDA2 AND DEREK J. TAYLOR2 1 2 A. N. SEVERTSOV INSTITUTE OF ECOLOGY AND EVOLUTION, LENINSKY PROSPECT 33, MOSCOW 119071, RUSSIA AND DEPARTMENT OF BIOLOGICAL SCIENCES, UNIVERSITY AT BUFFALO, THE STATE UNIVERSITY OF NEW YORK, BUFFALO, NY 14260, USA *CORRESPONDING AUTHOR: [email protected] Received February 22, 2006; accepted in principle June 22, 2006; accepted for publication August 31, 2006; published online September 8, 2006 Communicating editor: K.J. Flynn Little is known of the biology and diversity of the environmental model genus Daphnia beyond the Nearctic and western Palearctic. Here, we describe Daphnia sinevi sp. nov., a species superficially similar to Daphnia curvirostris Eylmann, 1878, from the Far East of Russia. We estimated its phylogenetic position in the subgenus Daphnia s. str. with a rapidly evolving mitochondrial protein coding gene [NADH-2 (ND2)] and a nuclear protein-coding gene [heat shock protein 90 (HSP90)]. Daphnia curvirostris, D. sinevi sp. nov., Daphnia tanakai and D. sp. from Ootori- Ike, Japan, (which, probably, is D. morsei Ishikawa, 1895) formed a monophyletic clade modestly supported by ND2 and strongly supported by HSP90. Our results provide evidence of hidden species diversity in eastern Palearctic Daphnia, independent origins of defensive neckteeth and phylogenetic informativeness of nuclear protein-coding genes for zooplankton genera. INTRODUCTION morphological and genetic approach, Ishida et al.
    [Show full text]
  • An Overview of the Contribution of Studies with Cladocerans
    Acta Limnologica Brasiliensia, 2015, 27(2), 145-159 http://dx.doi.org/10.1590/S2179-975X3414 An overview of the contribution of studies with cladocerans to environmental stress research Um panorama da contribuição de estudos com cladóceros para as pesquisas sobre o estresse ambiental Albert Luiz Suhett1, Jayme Magalhães Santangelo2, Reinaldo Luiz Bozelli3, Christian Eugen Wilhem Steinberg4 and Vinicius Fortes Farjalla3 1Unidade Universitária de Biologia, Centro Universitário Estadual da Zona Oeste – UEZO, CEP 23070-200, Rio de Janeiro, RJ, Brazil e-mail: [email protected] 2Departamento de Ciências Ambientais, Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro – UFRRJ, CEP 23890-000, Seropédica, RJ, Brazil e-mail: [email protected] 3Departamento de Ecologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro – UFRJ, CEP 21941-590, Rio de Janeiro, RJ, Brazil e-mail: [email protected]; [email protected] 4Institute of Biology, Faculty of Mathematics and Natural Sciences I, Humboldt Universität zu Berlin, 12437, Berlin, Germany e-mail: [email protected] Abstract: Cladocerans are microcrustaceans component of the zooplankton in a wide array of aquatic ecosystems. These organisms, in particular the genusDaphnia , have been widely used model organisms in studies ranging from biomedical sciences to ecology. Here, we present an overview of the contribution of studies with cladocerans to understanding the consequences at different levels of biological organization of stress induced by environmental factors. We discuss how some characteristics of cladocerans (e.g., small body size, short life cycles, cyclic parthenogenesis) make them convenient models for such studies, with a particular comparison with other major zooplanktonic taxa.
    [Show full text]
  • Lineage Diversity, Morphological and Genetic Divergence in Daphnia Magna (Crustacea) Among Chinese Lakes at Different Altitudes
    Contributions to Zoology 89 (2020) 450-470 CTOZ brill.com/ctoz Lineage diversity, morphological and genetic divergence in Daphnia magna (Crustacea) among Chinese lakes at different altitudes Xiaolin Ma* Ministry of Education, Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Science, Fudan University, Songhu Road 2005, Shanghai, China Yijun Ni* Ministry of Education, Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Science, Fudan University, Songhu Road 2005, Shanghai, China Xiaoyu Wang Ministry of Education, Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Science, Fudan University, Songhu Road 2005, Shanghai, China Wei Hu Ministry of Education, Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Science, Fudan University, Songhu Road 2005, Shanghai, China Mingbo Yin Ministry of Education, Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Science, Fudan University, Songhu Road 2005, Shanghai, China [email protected] Abstract The biogeography and genetic structure of aquatic zooplankton populations remains understudied in the Eastern Palearctic, especially the Qinghai-Tibetan Plateau. Here, we explored the population-genetic di- versity and structure of the cladoceran waterflea Daphnia magna found in eight (out of 303 investigated) waterbodies across China. The three Tibetan D. magna populations were detected within a small geo- graphical area, suggesting these populations have expanded from refugia. We detected two divergent mi- tochondrial lineages of D. magna in China: one was restricted to the Qinghai-Tibetan Plateau and the * Contributed equally. © Ma et al., 2020 | doi:10.1163/18759866-bja10011 This is an open access article distributed under the terms of the cc by 4.0 license.
    [Show full text]