Redescription of Bythotrephes Longimanus Leydig, 1860 and B
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
Cladocera: Anomopoda: Daphniidae) from the Lower Cretaceous of Australia
Palaeontologia Electronica palaeo-electronica.org Ephippia belonging to Ceriodaphnia Dana, 1853 (Cladocera: Anomopoda: Daphniidae) from the Lower Cretaceous of Australia Thomas A. Hegna and Alexey A. Kotov ABSTRACT The first fossil ephippia (cladoceran exuvia containing resting eggs) belonging to the extant genus Ceriodaphnia (Anomopoda: Daphniidae) are reported from the Lower Cretaceous (Aptian) freshwater Koonwarra Fossil Bed (Strzelecki Group), South Gippsland, Victoria, Australia. They represent only the second record of (pre-Quater- nary) fossil cladoceran ephippia from Australia (Ceriodaphnia and Simocephalus, both being from Koonwarra). The occurrence of both of these genera is roughly coincident with the first occurrence of these genera elsewhere (i.e., Mongolia). This suggests that the early radiation of daphniid anomopods predates the breakup of Pangaea. In addi- tion, some putative cladoceran body fossils from the same locality are reviewed; though they are consistent with the size and shape of cladocerans, they possess no cladoceran-specific synapomorphies. They are thus regarded as indeterminate diplostracans. Thomas A. Hegna. Department of Geology, Western Illinois University, Macomb, IL 61455, USA. ta- [email protected] Alexey A. Kotov. A.N. Severtsov Institute of Ecology and Evolution, Leninsky Prospect 33, Moscow 119071, Russia and Kazan Federal University, Kremlevskaya Str.18, Kazan 420000, Russia. alexey-a- [email protected] Keywords: Crustacea; Branchiopoda; Cladocera; Anomopoda; Daphniidae; Cretaceous. Submission: 28 March 2016 Acceptance: 22 September 2016 INTRODUCTION tions that the sparse known fossil record does not correlate with a meager past diversity. The rarity of Water fleas (Crustacea: Cladocera) are small, the cladoceran fossils is probably an artifact, a soft-bodied branchiopod crustaceans and are a result of insufficient efforts to find them in known diverse and ubiquitous component of inland and new palaeontological collections (Kotov, aquatic communities (Dumont and Negrea, 2002). -
The Benthic Feeding Ecology of Round Goby Fry Dylan Samuel Olson University of Wisconsin-Milwaukee
University of Wisconsin Milwaukee UWM Digital Commons Theses and Dissertations August 2016 The Benthic Feeding Ecology of Round Goby Fry Dylan Samuel Olson University of Wisconsin-Milwaukee Follow this and additional works at: https://dc.uwm.edu/etd Part of the Ecology and Evolutionary Biology Commons Recommended Citation Olson, Dylan Samuel, "The Benthic Feeding Ecology of Round Goby Fry" (2016). Theses and Dissertations. 1397. https://dc.uwm.edu/etd/1397 This Thesis is brought to you for free and open access by UWM Digital Commons. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of UWM Digital Commons. For more information, please contact [email protected]. THE BENTHIC FEEDING ECOLOGY OF ROUND GOBY FRY by Dylan S. Olson A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Freshwater Sciences and Technology at The University of Wisconsin-Milwaukee August 2016 ABSTRACT THE BENTHIC FEEDING ECOLOGY OF ROUND GOBY FRY by Dylan S. Olson The University of Wisconsin-Milwaukee, 2016 Under the Supervision of Professor John Janssen Larval and juvenile stage events play a dominant role in regulating the ultimate recruitment strength of fish populations. As such, the feeding ecology of early life stages are useful for interpreting the proximate causes of recruitment variability. This study provides the first targeted study of the early juvenile (“fry”) diet of the round goby (Neogobius melanostomus, Pallas 1814), a prominent Great Lakes invasive fish. Previous accounts of the diets of round goby fry in the Great Lakes have been based upon by-catch from nocturnal, pelagic studies. -
Freshwater Crustaceans As an Aboriginal Food Resource in the Northern Great Basin
UC Merced Journal of California and Great Basin Anthropology Title Freshwater Crustaceans as an Aboriginal Food Resource in the Northern Great Basin Permalink https://escholarship.org/uc/item/3w8765rq Journal Journal of California and Great Basin Anthropology, 20(1) ISSN 0191-3557 Authors Henrikson, Lael S Yohe, Robert M, II Newman, Margaret E et al. Publication Date 1998-07-01 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Joumal of Califomia and Great Basin Anthropology Vol. 20, No. 1, pp. 72-87 (1998). Freshwater Crustaceans as an Aboriginal Food Resource in the Northern Great Basin LAEL SUZANN HENRIKSON, Bureau of Land Management, Shoshone District, 400 W. F Street, Shoshone, ID 83352. ROBERT M. YOHE II, Archaeological Survey of Idaho, Idaho State Historical Society, 210 Main Street, Boise, ID 83702. MARGARET E. NEWMAN, Dept. of Archaeology, University of Calgary, Alberta, Canada T2N 1N4. MARK DRUSS, Idaho Power Company, 1409 West Main Street, P.O. Box 70. Boise, ID 83707. Phyllopods of the genera Triops, Lepidums, and Branchinecta are common inhabitants of many ephemeral lakes in the American West. Tadpole shrimp (Triops spp. and Lepidums spp.) are known to have been a food source in Mexico, and fairy shrimp fBranchinecta spp.) were eaten by the aborigi nal occupants of the Great Basin. Where found, these crustaceans generally occur in numbers large enough to supply abundant calories and nutrients to humans. Several ephemeral lakes studied in the Mojave Desert arul northern Great Basin currently sustain large seasonal populations of these crusta ceans and also are surrounded by numerous small prehistoric camp sites that typically contain small artifactual assemblages consisting largely of milling implements. -
A Dissertation Entitled Evolution, Systematics
A Dissertation Entitled Evolution, systematics, and phylogeography of Ponto-Caspian gobies (Benthophilinae: Gobiidae: Teleostei) By Matthew E. Neilson Submitted as partial fulfillment of the requirements for The Doctor of Philosophy Degree in Biology (Ecology) ____________________________________ Adviser: Dr. Carol A. Stepien ____________________________________ Committee Member: Dr. Christine M. Mayer ____________________________________ Committee Member: Dr. Elliot J. Tramer ____________________________________ Committee Member: Dr. David J. Jude ____________________________________ Committee Member: Dr. Juan L. Bouzat ____________________________________ College of Graduate Studies The University of Toledo December 2009 Copyright © 2009 This document is copyrighted material. Under copyright law, no parts of this document may be reproduced without the expressed permission of the author. _______________________________________________________________________ An Abstract of Evolution, systematics, and phylogeography of Ponto-Caspian gobies (Benthophilinae: Gobiidae: Teleostei) Matthew E. Neilson Submitted as partial fulfillment of the requirements for The Doctor of Philosophy Degree in Biology (Ecology) The University of Toledo December 2009 The study of biodiversity, at multiple hierarchical levels, provides insight into the evolutionary history of taxa and provides a framework for understanding patterns in ecology. This is especially poignant in invasion biology, where the prevalence of invasiveness in certain taxonomic groups could -
The Status of Some Exotic Cladoceran (Crustacea: Branchiopoda) Species in the Belgian Fauna
BULLETIN DE L’INSTITUT ROYAL DES SCIENCES NATURELLES DE BELGIQUE BIOLOGIE, 72-SUPPL.: 87-88, 2002 BULLETIN VAN HET KONINKLIJK BELGISCH INSTITUUT VOOR NATUURWETENSCHAPPEN BIOLOGIE, 72-SUPPL.: 87-88, 2002 The status of some exotic cladoceran (Crustacea: Branchiopoda) species in the Belgian fauna L. DE MEESTER, L. FORRÓ, E. MICHELS, K. COTTENIE, G. LOUETTE & H.J. DUMONT Introduction prep.). The natural range of this species is situated in the Far East (GOULDEN 1968) but it has also been reported as We report the occurrence of some exotic cladocerans an exotic species from Southern and Eastern Europe. It is (Crustacea: Branchiopoda) in Flanders, Belgium. In ad- very likely that the species arrived in our region through dition to well-established exotics such as Daphnia ambi- fish stocking. Moina weismanni can easily be recognized gua and Daphnia parvula, we also report on the occur- from Moina micrura by the unique ornamentation of the rence of a previously unreported species from the Belgian surface of the resting egg capsule (ephippium). fauna, Moina weismanni. These reports on alien species add to the general observation that aquatic habitats seem The amount of exotic species in aquatic habitats is to be very prone to the invasion of exotic species, astonishing and obvious to all field workers. Sampling amongst others due to the construction of canals and ponds in the nature reserve De Maten, formerly used as the frequent and often uncontrolled translocations and fishponds, has revealed exotic species in a wide variety of stocking of fish. taxa (K. COTTENIE, E. MICHELS & S. DECLERCK, pers. obs.). In addition to the effects of the construction of canals, it is clear that the widespread and often uncontrolled transloca- Discussion tion of fish in relation to fish culture and angling results in a serious risk of contamination with exotic species. -
Further Expansion of the Genus Cercopagis (Crustacea, Branchiopoda, Onychopoda) in the Baltic Sea, with Notes on the Taxa Present and Their Ecology
Hydrobiologia 429: 207–218, 2000. 207 © 2000 Kluwer Academic Publishers. Printed in the Netherlands. Further expansion of the genus Cercopagis (Crustacea, Branchiopoda, Onychopoda) in the Baltic Sea, with notes on the taxa present and their ecology Elena Gorokhova1;∗, Nikolai Aladin2 & Henri J. Dumont3 1Department of Systems Ecology, Stockholm University, 109 61 Stockholm, Sweden Present address: Department of Biology, Arizona State University, Tempe, U.S.A. Fax: [+1] 480-965-2519. E-mail: [email protected] 2Zoological Institute, Russian Academy of Science, 199034 St. Petersburg, Russia 3Laboratory of Animal Ecology, University of Ghent, B-9000 Ghent, Belgium Received 5 May 1999; in revised form 10 September 1999; accepted 20 September 1999 Key words: Cercopagis, invasion, Baltic Sea, depth, temperature, salinity, morphological variations Abstract The onychopod cladoceran Cercopagis that recently invaded the Baltic Sea is reported from new zones of the north- ern Baltic proper. Because of successful survival and an expanding distribution range, the addition of Cercopagis to the Baltic fauna is considered to be permanent. What has previously been cited as Cercopagis pengoi encompasses the morphology of several other species, subspecies and forms. Either a number of morphologically similar species is present, or there is a number of spurious species in Cercopagis. The last hypothesis is favoured. The spatial distribution pattern of Cercopagis, as well as that of total zooplankton, was correlated with depth. Deep (>100 m) and shallow (<10 m) stations had significantly lower abundance than stations of intermediate depth (<100 m). An overview of the distribution of C. pengoi group in fresh and brackish waters suggests a high tolerance to environmental factors, but with differences among taxa. -
Workshop Manual: Aquatic Invasive Species
AIS Workshop Workshop Manual: Aquatic Invasive Species An Introduction to Identification, Collection and Reporting of Aquatic Invasive Species in Ontario Waters AIS Workshop Copyright 2008 © MNR and OFAH Cover Photographs (left to right): Top row – Peter W. Bergstrom, Wasyl Bakowsky, Donald Sutherland Middle Row – Dale Westaby, Dave Britton, Steven Pothoven Bottom Row – John Lyons, Michael Butler, David Rieks 1 AIS Workshop Contents LIST OF FIGURES ...................................................................................... 47 LIST OF TABLES ....................................................................................... 47 0 ABOUT THIS WORKSHOP.......................................................................... 57 A0 BOUT THIS WORKSHOP.......................................................................... 58 Learning5 Outcomes............................................................................. 68 O1 VERVIEW ............................................................................................... 78 Introduction to Aquatic Invasive Species ........................................... 78 Historical6 Perspective in Brief............................................................ 98 Pathways ............................................................................................. 98 Response7 to Aquatic Invasive Species.............................................. 128 National Strategy and Action Plan..........................................................128 8 Additional Information .................................................................... -
Annotated Checklist of Chinese Cladocera (Crustacea: Branchiopoda)
Zootaxa 3904 (1): 001–027 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3904.1.1 http://zoobank.org/urn:lsid:zoobank.org:pub:56FD65B2-63F4-4F6D-9268-15246AD330B1 Annotated Checklist of Chinese Cladocera (Crustacea: Branchiopoda). Part I. Haplopoda, Ctenopoda, Onychopoda and Anomopoda (families Daphniidae, Moinidae, Bosminidae, Ilyocryptidae) XIAN-FEN XIANG1, GAO-HUA JI2, SHOU-ZHONG CHEN1, GONG-LIANG YU1,6, LEI XU3, BO-PING HAN3, ALEXEY A. KOTOV3, 4, 5 & HENRI J. DUMONT3,6 1Institute of Hydrobiology, Chinese Academy of Sciences, 7# Southern Road of East Lake, Wuhan, Hubei Province, 430072, China. E-mail: [email protected] 2College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China 3 Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, China. 4A. N. Severtsov Institute of Ecology and Evolution, Leninsky Prospect 33, Moscow 119071, Russia 5Kazan Federal University, Kremlevskaya Str.18, Kazan 420000, Russia 6Corresponding authors. E-mail: [email protected], [email protected] Abstract Approximately 199 cladoceran species, 5 marine and 194 freshwater and continental saltwater species, live in China. Of these, 89 species are discussed in this paper. They belong to the 4 cladoceran orders, 10 families and 23 genera. There are 2 species in Leptodoridae; 6 species in 4 genera and 3 families in order Onychopoda; 18 species in 7 genera and 2 families in order Ctenopoda; and 63 species in 11 genera and 4 families in non-Radopoda Anomopoda. Five species might be en- demic of China and three of Asia. -
Bythotrephes Longimanus), Native to Northern Europe and Asia Has Impacted Lakes Throughout the Great Lakes Basin
State of Michigan’s Status and Strategy for Spiny Waterflea Management Scope The invasive spiny waterflea (Bythotrephes longimanus), native to Northern Europe and Asia has impacted lakes throughout the Great Lakes Basin. The goals of this document are to: • Summarize current level of understanding on the biology and ecology of the spiny waterflea. • Summarize current management options for the spiny waterflea in Michigan. • Identify possible future directions of spiny waterflea management in Michigan. Biology and Ecology I. Identification Kevin Keeler and Lynn Lesko - U.S. Geological Survey The spiny waterflea, formerly known as Bythotrephes cederstroemii, is a large planktivore of the suborder Cladocera and can have dramatic effects on zooplankton communities by altering the trophic structure in invaded waters (Yan et al. 2002). They can grow to lengths of 15 mm with females growing larger than males. The spiny waterflea has a large compound eye and well-developed abdomen with an extremely long tail twice the length of the body (Branstartor 2005, Kelly 2013); the tail has three to four spines and lacks a terminal loop. Lack of a terminal loop distinguishes the spiny waterflea from Cercopagis pengoi, another invasive species in the Great Lakes basin. Fully developed parthenogenetic individuals have three barbs while fully developed sexually reproducing individuals have four barbs. Adult females also have a distinctive brood pouch on their back (Liebig 2014). II. Life History Spiny waterfleas go through three instar phases and can reproduce both parthenogenetically and sexually, switching from parthenogenesis during the summer to gametogenesis during the fall. The resting eggs produced during sexual reproduction are thought to be essential for the species’ survival since the presence of its planktonic stage has never been reported during the winter months (Rivier 1998, Brown 2008). -
Volume 2, Chapter 10-1: Arthropods: Crustacea
Glime, J. M. 2017. Arthropods: Crustacea – Copepoda and Cladocera. Chapt. 10-1. In: Glime, J. M. Bryophyte Ecology. Volume 2. 10-1-1 Bryological Interaction. Ebook sponsored by Michigan Technological University and the International Association of Bryologists. Last updated 19 July 2020 and available at <http://digitalcommons.mtu.edu/bryophyte-ecology2/>. CHAPTER 10-1 ARTHROPODS: CRUSTACEA – COPEPODA AND CLADOCERA TABLE OF CONTENTS SUBPHYLUM CRUSTACEA ......................................................................................................................... 10-1-2 Reproduction .............................................................................................................................................. 10-1-3 Dispersal .................................................................................................................................................... 10-1-3 Habitat Fragmentation ................................................................................................................................ 10-1-3 Habitat Importance ..................................................................................................................................... 10-1-3 Terrestrial ............................................................................................................................................ 10-1-3 Peatlands ............................................................................................................................................. 10-1-4 Springs ............................................................................................................................................... -
Chemical and Biological Recovery of Killarney Park, Ontario
CHEMICAL AND BIOLOGICAL RECOVERY OF KILLARNEY PARK, ONTARIO LAKES (1972-2005) FROM HISTORICAL ACIDIFICATION by JUSTIN A. SHEAD A thesis submitted to the Department of Biology in conformity with the requirements for the degree of Master of Science Queen’s University Kingston, Ontario, Canada September, 2007 Copyright © Justin A. Shead, 2007 i ABSTRACT Forty-five lakes in Killarney Provincial Park and the surrounding area in south- central Ontario, Canada, were sampled for crustacean zooplankton and water chemistry in the summer of 2005. For each of the lakes, we had historic data from peak- acidification in the 1970s and post-acidification periods in 1990 and 2000. Situated among the orthoquartzite ridges of the La Cloche Mountains in and near Killarney Provincial Park, many of these lakes were acidified during the mid-1900s owing to extensive mining and smelting activities in nearby (40-60 km) Sudbury, Ontario. There is large variation in the geochemistry of the soils and the bedrock within the park. As a result, these freshwater lakes have varying degrees of acidification, ranging from being heavily acidified (pH < 4.5) to others that were buffered from the effects of acidic deposition. With over 90% reductions in sulphur dioxide smelter emissions over the past 30 years and the present, many lakes in the Sudbury region are starting to show strong evidence of chemical recovery. Despite significant increases in lake water pH, there is limited evidence of biological recovery. A variety of univariate and multivariate metrics, as well as variation partitioning, were used to examine recovery on a lake-by-lake basis and on a regional scale. -
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.