Resting Eggs in the Life Cycle of Cercopagis Pengoi, a Recent Invader of the Baltic Sea
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Diversity and Life-Cycle Analysis of Pacific Ocean Zooplankton by Video Microscopy and DNA Barcoding: Crustacea
Journal of Aquaculture & Marine Biology Research Article Open Access Diversity and life-cycle analysis of Pacific Ocean zooplankton by video microscopy and DNA barcoding: Crustacea Abstract Volume 10 Issue 3 - 2021 Determining the DNA sequencing of a small element in the mitochondrial DNA (DNA Peter Bryant,1 Timothy Arehart2 barcoding) makes it possible to easily identify individuals of different larval stages of 1Department of Developmental and Cell Biology, University of marine crustaceans without the need for laboratory rearing. It can also be used to construct California, USA taxonomic trees, although it is not yet clear to what extent this barcode-based taxonomy 2Crystal Cove Conservancy, Newport Coast, CA, USA reflects more traditional morphological or molecular taxonomy. Collections of zooplankton were made using conventional plankton nets in Newport Bay and the Pacific Ocean near Correspondence: Peter Bryant, Department of Newport Beach, California (Lat. 33.628342, Long. -117.927933) between May 2013 and Developmental and Cell Biology, University of California, USA, January 2020, and individual crustacean specimens were documented by video microscopy. Email Adult crustaceans were collected from solid substrates in the same areas. Specimens were preserved in ethanol and sent to the Canadian Centre for DNA Barcoding at the Received: June 03, 2021 | Published: July 26, 2021 University of Guelph, Ontario, Canada for sequencing of the COI DNA barcode. From 1042 specimens, 544 COI sequences were obtained falling into 199 Barcode Identification Numbers (BINs), of which 76 correspond to recognized species. For 15 species of decapods (Loxorhynchus grandis, Pelia tumida, Pugettia dalli, Metacarcinus anthonyi, Metacarcinus gracilis, Pachygrapsus crassipes, Pleuroncodes planipes, Lophopanopeus sp., Pinnixa franciscana, Pinnixa tubicola, Pagurus longicarpus, Petrolisthes cabrilloi, Portunus xantusii, Hemigrapsus oregonensis, Heptacarpus brevirostris), DNA barcoding allowed the matching of different life-cycle stages (zoea, megalops, adult). -
The Potential Link Between Lake Productivity and the Invasive Zooplankter Cercopagis Pengoi in Owasco Lake (New York, USA)
Aquatic Invasions (2008) Volume 3, Issue 1: 28-34 doi: 10.3391/ai.2008.3.1.6 (Open Access) © 2008 The Author(s). Journal compilation © 2008 REABIC Special issue “Invasive species in inland waters of Europe and North America: distribution and impacts” Sudeep Chandra and Almut Gerhardt (Guest Editors) Research Article The potential link between lake productivity and the invasive zooplankter Cercopagis pengoi in Owasco Lake (New York, USA). Meghan E. Brown* and Melissa A. Balk Department of Biology, Hobart and William Smith Colleges, 4095 Scandling Center, Geneva, NY 14456, USA E-mail: [email protected] *Corresponding author Received: 28 September 2007 / Accepted: 5 February 2008 / Published online: 23 March 2008 Abstract The fishhook water flea (Cercopagis pengoi Ostroumov, 1891) is an invasive zooplankter that can decrease the abundance and diversity of cladocerans and rotifers, which theoretically could release phytoplankton from grazing pressure and increase algal primary productivity. In the last decade, C. pengoi established and primary productivity increased concurrently in Owasco Lake (New York, USA). We studied plankton density, primary productivity, and standard limnological conditions in Owasco Lake during summer 2007 (1) to document summer densities of invertebrate predators, (2) to investigate correlations between C. pengoi and the abiotic environment, and (3) to examine the relationships among C. pengoi, native zooplankton, and productivity. Although the maximum abundance of C. pengoi observed (245 ind./m3) far exceeded that of any native invertebrate predator, at most locations and dates unimodal density peaks between 35-60 ind./m3 were typical and comparable to Leptodora kindtii (Focke, 1844), the most common native planktivore. -
Present-Day Surface and Subsurface Water Resources of European Russia: Conditions, Use and Forecast
Hydrology in a Changing World: Environmental and Human Dimensions 215 Proceedings of FRIEND-Water 2014, Montpellier, France, October 2014 (IAHS Publ. 363, 2014). Present-day surface and subsurface water resources of European Russia: conditions, use and forecast R. DZHAMALOV1, N. FROLOVA2, M. KIREEVA2 & E. RETS1 1 Water Problems Institute, Russian Academy of Sciences, ul. Gubkina 3, Moscow, 119333 Russia [email protected] 2 Department of Hydrology, Lomonosov Moscow State University, 119899, Leninskiye Gory, Moscow, Russia Abstract Climate change-derived variations in the characteristics of the annual, dry-season, and minimal monthly runoff in rivers of European Russia were estimated and analysed. The current changes in runoff characteristics were studied for different river basins, and their major causes were identified. Regional regularities in the hydrological and geohydrological processes were identified. The natural resources of surface and subsurface waters over 1970–2005 were re-estimated with the construction of appropriate maps. Water availability and demand on water resources were analysed. Key words natural groundwater resources; surface water resources; groundwater runoff; river runoff; runoff regime INTRODUCTION An urgent current problem is to re-estimate the renewable water resources (natural resources of sub-surface and surface waters) in the context of changing climatic characteristics, which affect the formation of water balance elements in river basins. Studying the current features of the formation of river runoff components makes it possible to describe the distribution of total water resources in European Russia (ER) and their dynamics under the effect of non stationary climate. MATERIALS AND METHODS The input data for the analysis were materials from the State Water Cadastre and Russian and international hydrometric and climatic databases collected for approximately 300 watersheds in ER. -
Biodiversity Loss in a Saline Lake Ecosystem Effects of Introduced Species and Salinization in the Aral Sea
Biodiversity loss in a saline lake ecosystem Effects of introduced species and salinization in the Aral Sea N. Aladin, I. Plotnikov, T. Ballatore and P. Micklin The ecological crisis of the Aral Sea has been widely dis- studying osmoregulatory capacities of aquatic organisms cussed during recent years in both the scientific and popu- first of all. It is to reveal types of osmotic relations of inter- lar literature. However, only the consequences of anthro- nal media with the environment, to find experimentally pogenic desiccation and increased salinity were usually limits of salinity tolerant ranges, to analyze data on salinity discussed with little note of the role played by introduced boundaries of aquatic organisms distribution in the nature species in this ecosystem (Micklin, 1991; Williams, Aladin, (Fig. 1). 1991; Keyser, Aladin, 1991). We review the role of intro- duced species during periods of changing salinity. Pre-1960: Effects of Alien Species Between the middle of the 19th century and 1961 the Aral At the beginning of the 1960s anthropogenic desiccation Sea state was stable, its shape and salinity of practically of the Aral Sea begun with tremendous implications for its did not change. The Aral Sea was the 4th largest lake in the salinity and hence the life within it. At that time the lake world by water surface area in 1960. At that time its area was inhabited by about 12 species of fishes and about 150 was 67,499 km2 (Large Aral 61, 381 km2, Small Aral 6118 species of free-living invertebrates excluding Protozoa and km2) volume was 1089 km3 (Large Aral 1007 km3, Small small-size Metazoa. -
Classification Scheme of Freshwater Aquatic Organisms Freshwater Keys: Classification
Compendium of Recommended Keys for British Columbia Freshwater Organisms: Part 3 Classification Scheme of Freshwater Aquatic Organisms Freshwater Keys: Classification Table of Contents TABLE OF CONTENTS.............................................................................................................................. 2 INTRODUCTION......................................................................................................................................... 4 KINGDOM MONERA................................................................................................................................. 5 KINGDOM PROTISTA............................................................................................................................... 5 KINGDOM FUNGI ...................................................................................................................................... 5 KINGDOM PLANTAE ................................................................................................................................ 6 KINGDOM ANIMALIA .............................................................................................................................. 8 SUBKINGDOM PARAZOA ........................................................................................................................ 8 SUBKINGDOM EUMETAZOA.................................................................................................................. 8 2 Freshwater Keys: Classification 3 Freshwater Keys: Classification -
Privatization Programme for 2006 and Main Trend of the Federal Property Privatization for 2006-2008
Approved by the Order of the Russian Federation government as of August 25, 2005 № 1306-р Privatization programme for 2006 and main trend of the federal property privatization for 2006-2008 Part I Main trend of the federal property privatization for 2006-2008 1. Purposes and objectives of the federal property privatization programme for 2006-2008 Privatization programme for 2006 and main trend of the federal property privatization for 2006-2008 (hereafter privatization programme) was developed in accordance with Federal law “Privatization of state-owned and municipal property”. Privatization programme is aimed at implementation of the tasks which were conceived in the President's Message to Federal Assembly of the Russian Federation in 2005. Main tasks of the federal property privatization programme for 2006-2008 are the following: − privatization of the federal property which is free from the state duty support; − stage-by-stage reduction of the federal state-owned unitary enterprises; − enhancement of privatization process; − income generation of the federal budget. 2. Anticipation of the federal property privatization influence on structural changes in economy As of June 1, 2005 Russian Federation is owner of 8293 federal state-owned unitary enterprises and stockholder of 3783 joint-stock companies. According to branch of economy, total amount of federal state-owned unitary enterprises and joint-stock companies which shares are belonging to federal property is the following: 1 Amount of joint-stock companies Amount of federal state-owned -
The Zoocenosis of the Aral Sea: Six Decades of Fast-Paced Change
Environmental Science and Pollution Research https://doi.org/10.1007/s11356-018-3807-z REVIEW ARTICLE The zoocenosis of the Aral Sea: six decades of fast-paced change Nikolay Vasilevich Aladin1 & Valentina Ivanovna Gontar1 & Ljubov Vasilevna Zhakova1 & Igor Svetozarovich Plotnikov1 & Alexey Olegovich Smurov1 & Piotr Rzymski2 & Piotr Klimaszyk3 Received: 29 June 2018 /Accepted: 19 November 2018 # The Author(s) 2018 Abstract During the last six decades, the water level of the Aral Sea, once one of the largest lakes in the world, has experienced a major human-driven regression followed by significant changes in salinity. These fast-paced alterations were initiated by the diversion of two rivers—the Amu Darya and Syr Darya—key players in the regulation of the water balance of the Aral Sea. Consequently, biological modifications took place leading to severe changes of the zoocenosis. This paper reviews the changes that have affected communities of fish and aquatic invertebrates in the Aral Sea since the 1950s. The reported alterations in biodiversity not only represent a natural response to a decrease in water level and a subsequent increase in salinity but also effects of non- native species introduction. The future prospects for invertebrates and fish in the Aral Sea, assuming that initiated restoration work is continued, are also discussed in this paper. Keywords Aral Sea . Ecological disaster . Ichthyofauna . Aquatic macroinvertebrates . Aquatic restoration Introduction largelyexceededbyevaporation,bothrivers,theonlysur- face water inflows -
Analysis of Territorial Planning and Prospects for Further Development of Urban Districts and Settlements in Rostov Region
MATEC Web of Conferences 106, 01004 (2017) DOI: 10.1051/ matecconf/201710601004 SPbWOSCE-2016 Analysis of Territorial Planning and Prospects for Further Development of Urban Districts and Settlements in Rostov Region Natalia Ovchinnikova1,* 1Don State Technical University, pl. Gagarina, 1, Rostov-on-Don, 344010, Russia Abstract: This article covers the problems of modern urban districts and settlements of the Rostov region with due regard to the organization of their territories. Prospects for the further development of the urban districts and settlements are defined based on the goals of the urban-planning activity. Short-term and mid-term trends of residential construction in the Rostov region are classified in terms of the improvement of town-planning documentation. It is concluded that the territorial planning organization is an integral part of sustainable territorial and urban development of any region. 1 Introduction As a rule, a populated settlement is a point where economic, political and social activities are concentrated. Problems of modern cities can be considered as a specific demographic populated system integrated into the natural environment. Over the last years an economic component in the management of urban districts and settlements development has been playing center stage covering not only environmental issues but also an optimal ratio of the elements of artificial and natural environment required for creation of favorable living conditions for the population. Besides, it is necessary to determine whether it is expedient to supply production with natural resources to the maximum extent. The pending problem is to determine the priority of the resources consumption, evaluate each territory in order to determine what kind of business activities would be the most suitable for it, and choose the one that would meet the characteristics of such area to the most extent. -
A Revision of the Australian Cladocera (Crustacea)
Records of the Australian Must;u m (1983) Suppl. 1. 1.~SN-0067 -1975. A Revision of the Australian Cladocera (Crustacea) N.N. SMIRNOV' and B.V. TIMMSb "Institute of Evolutionary Morphology and Ecology of Animals, U.S.S.R. Academy of Sciences, Leninski Prospect 33, Moscow V-71, 117071, U.S.S.R. bSciences Department, Avondale College, Cooranbong, N.S.W., Australia, 2265 ABSTRACT. The Australian Cladocera are revised on the basis of numerous samples, collections in the Australian Museum and a critical consideration of the literature. Six families are represented in inland waters of Australia: Sididae, Chydoridae, Macrothricidae, Moinidae, Bosminidae, and Daphniidae. Altogether 125 species in 40 genera were found, 15 species being new: Pseudosida australiensis n.sp., Archepleuroxus baylyi n. gen., n.sp., Rak obtusus n. gen., n.sp., Rak labrosus n. gen., n.sp., Australochydorus aporus n. gen., n.sp., Rhynchochydorus australiensis n. gen., n.sp., Alona macracantha n.sp., Alona investis n.sp., Alona setuloides n.sp., Biapertura rusticoides n.sp., Monospilus diporus n.sp., Monospi/us elongatus n.sp., Echinisca williamsi n.sp., Echiniscaflagellata n.sp., and Simocephalus victoriensis n.sp. One new subspecies is recognized: Alona davidi vermiculata n.subsp. Some 49 species (including the new species) are recorded in Australia for the first time. In addition, the presence of a further 6 species of marine Cladocera in the families Podonidae and Sididae is noted. The cladoceran fauna of Australia, besides including many cosmopolitan and pantropical forms, also has some species widely distributed in the Holarctic, some Gondwanaland species, and a large number (46) of endemics. -
World Bank Document
E852 v 3 Public Disclosure Authorized Department for International Development Reduction of Nutrient Discharges and Methane Emissions in Rostov-on-Don Environmental Impact Assessment Public Disclosure Authorized Halcrow Group Limited Public Disclosure Authorized Public Disclosure Authorized Department for International Development Reduction of Nutrient Discharges and Methane Emissions in Rostov-on-Don Environmental Impact Assessment August 2001 Halcrow Group Limited Halcrow Group Limited Burderop Park Swindon Wiltshire SN4 0QD Tel +44 (0)1793 812479 Fax +44 (0)1793 812089 www.Halcrow.com Halcrow Group Limited has prepared this report in accordance with the instructions of their client, DFID, for their sole and specific use. Any other persons who use any information contained herein do so at their own risk. © Halcrow Group Limited 2001 Halcrow Group Limited Burderop Park Swindon Wiltshire SN4 0QD Tel +44 (0)1793 812479 Fax +44 (0)1793 812089 www.Halcrow.com Department for International Development Reduction of Nutrient Discharges and Methane Emissions in Rostov-on-Don Environmental Impact Assessment August 2001 Contents Amendment Record This report has been issued and amended as follows: Issu Revisio Description Date Signed e n 0 Draft April 2001 1 1 Final with amandments August added from reviewers 2001 Contents Executive Summary 1 1 Introduction 8 1.1 Background 8 1.2 Context and Need for Improvements 8 1.2.1 Introduction 8 1.2.2 Regional Projects 9 1.2.3 Specific Scheme Development 11 1.3 Study Area 13 1.4 Scope and Approach 13 1.5 -
Russia.Pdf 71 Chicago Tribune
Table of Contents PROFILE 5 INTRODUCTION 5 FACTS AND FIGURES 6 GEOGRAPHY 15 INTRODUCTION 15 GEOGRAPHIC REGIONS AND TOPOGRAPHIC FEATURES 15 KOLA PENINSULA 15 RUSSIAN PLAIN 15 CAUCASUS MOUNTAINS 16 URAL MOUNTAINS 16 WEST SIBERIAN PLAIN 17 CENTRAL SIBERIAN PLATEAU 17 TAYMYR PENINSULA 17 MOUNTAINS OF THE SOUTH AND EAST 18 CLIMATE 19 RIVERS AND LAKES 20 CASPIAN SEA/BLACK SEA 20 ARCTIC OCEAN 21 PACIFIC OCEAN 22 MAJOR CITIES 23 MOSCOW 24 SAINT PETERSBURG 25 NOVOSIBIRSK 26 NIZHNIY NOVGOROD 27 YEKATERINBURG 28 ENVIRONMENTAL CONCERNS 29 WATER POLLUTION 29 NUCLEAR ENVIRONMENTAL THREATS 29 NATURAL HAZARDS 30 HISTORY 32 EARLY HISTORY 32 ORIGIN OF THE RUSSIAN STATE 32 KIEVAN RUS 33 THE MONGOL INVASION 34 THE GOLDEN HORDE 34 THE RISE OF MUSCOVY (MOSCOW) 35 IVAN IV (THE TERRIBLE) 36 BORIS GODUNOV AND THE TIME OF TROUBLES 37 THE ROMANOVS 38 PETER I (THE GREAT) 38 THE ERA OF PALACE REVOLUTIONS 39 2 CATHERINE II 40 THE EARLY 19TH CENTURY 41 REFORM EFFORTS 41 ALEXANDER III 42 REVOLUTIONS AND CIVIL WAR 43 PROLOGUE TO REVOLUTION 43 WORLD WAR I AND THE FEBRUARY REVOLUTION 44 THE OCTOBER REVOLUTION 45 THE SOVIET ERA 46 THE ASCENT OF STALIN 46 STALIN’S PURGES 47 WORLD WAR II 47 POST WORLD WAR II 48 KHRUSHCHEV AND THE POST-STALIN THAW 49 BREZHNEV, ANDROPOV, AND CHERNENKO 50 PERESTROIKA AND GLASNOST 50 THE LAST YEARS OF THE SOVIET UNION 51 END GAME 52 POST-SOVIET RUSSIA 53 ECONOMIC TROUBLES 53 CHECHNYA 53 PUTIN AND MEDVEDEV 54 ECONOMY 56 INTRODUCTION 56 INDUSTRY AND MANUFACTURING 56 AGRICULTURE 57 BANKING AND CURRENCY 58 TRADE 59 INVESTMENT 61 ENERGY AND MINERAL -
An Investigation Into Australian Freshwater Zooplankton with Particular Reference to Ceriodaphnia Species (Cladocera: Daphniidae)
An investigation into Australian freshwater zooplankton with particular reference to Ceriodaphnia species (Cladocera: Daphniidae) Pranay Sharma School of Earth and Environmental Sciences July 2014 Supervisors Dr Frederick Recknagel Dr John Jennings Dr Russell Shiel Dr Scott Mills Table of Contents Abstract ...................................................................................................................................... 3 Declaration ................................................................................................................................. 5 Acknowledgements .................................................................................................................... 6 Chapter 1: General Introduction .......................................................................................... 10 Molecular Taxonomy ..................................................................................................... 12 Cytochrome C Oxidase subunit I ................................................................................... 16 Traditional taxonomy and cataloguing biodiversity ....................................................... 20 Integrated taxonomy ....................................................................................................... 21 Taxonomic status of zooplankton in Australia ............................................................... 22 Thesis Aims/objectives ..................................................................................................