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AN ECOLOGICAL STUDY OF SOME OF THE CHIRONOMIDAE INHABITING A SERIES OF SALINE LAKES IN CENTRAL BRITISH COLUMBIA WITH SPECIAL REFERENCE TO CHIRONOMUS TENTANS FABRICIUS by Robert Alexander Cannings BSc. Hons., University of British Columbia, 1970 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in the Department of Zoology We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA May, 1973 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the Head of my Department or by his representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Department of The University of British Columbia Vancouver 8, Canada Date ii ABSTRACT This thesis is concerned with a study of the Chironomidae occuring in a saline lake series in central British Columbia. It describes the ecological distribution of species, their abundance, phenology and interaction, with particular attention being paid to Chironomus tentans. Emphasis is placed on the species of Chironomus that coexist in these lakes and a further analysis is made of the chromo• some inversion frequencies in C. tentans. Of the thirty-four species represented by identifiable adults in the study, eleven species have not been previously reported in British Columbia, five are new records for Canada and seven species are new to science. -
(Diptera: Chironomidae), with The
Zootaxa 2497: 1–36 (2010) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2010 · Magnolia Press ISSN 1175-5334 (online edition) The problems with Polypedilum Kieffer (Diptera: Chironomidae), with the description of Probolum subgen. n. OLE A. SÆTHER1, TROND ANDERSEN2,5, LUIZ C. PINHO3 & HUMBERTO F. MENDES4 1, 2 & 4Department of Natural History, Bergen Museum, University of Bergen, Pb. 7800, N-5020 Bergen, Norway. 3Departamento de Biologia, FFCLRP-USP, Avenida Bandeirantes, n. 3900, CEP 14040-901, Ribeirão Preto - SP, Brazil. E-mails: [email protected], [email protected], [email protected], [email protected] 5Corresponding author. E-mail: [email protected] Table of contents Abstract ............................................................................................................................................................................... 2 Introduction ......................................................................................................................................................................... 2 Material and methods .......................................................................................................................................................... 3 Systematics .......................................................................................................................................................................... 3 Polypedilum subgenus Tripedilum Kieffer ....................................................................................................................... -
Wq-Rule4-12Kk L.7
L.7. Calculation of Minnesota Macroinvertebrate IBIs- Draft January 26, 2017 Introduction The Index of Biotic Integrity (IBI) is one of the primary tools used by the Minnesota Pollution Control Agency (MPCA) to determine if streams are meeting their aquatic life use goals. Calculation of an IBI involves the synthesis of macroinvertebrate community information into a numerical expression of stream health. In order to apply the MPCA Macroinvertebrate IBI (MIBI) to a macroinvertebrate dataset, it is essential that all data is collected using MPCA field and laboratory protocols (MPCA 2004, MPCA 2015). This document details the process for calculating the Minnesota MIBIs from raw macroinvertebrate samples. Summary of MIBI development To account for natural differences in macroinvertebrates communities in Minnesota, streams are assigned to different stream types. These stream types use different MIBI models and biocriteria to determine the condition of the macroinvertebrate assemblage and their attainment or nonattainment of the aqutic life beneficial use. The MPCA stratified Minnesota streams into nine macroinvertebrate stream types based on the expected natural composition of stream macroinvertebrates (Table 1). Stream type is differentiated by drainage area, geographic region, thermal regime, and gradient. These stream types are used to determine thresholds (i.e., biocriteria) that interpret the calculated MIBI as meeting or exceeding the aquatic life use goal. MIBIs were developed from five individual invertebrate stream groups, with large rivers, wadable high gradient and wabable low gradient stream types each being combined for the purposes of metric testing and evaluation. A complete description of the development of MIBIs can be found in MPCA (2014). -
Abstract Spatial Distribution of Benthic Invertebrates In
ABSTRACT SPATIAL DISTRIBUTION OF BENTHIC INVERTEBRATES IN LAKE WINNEBAGO, WISCONSIN By Courtney L. Heling Numerous studies have examined the distribution of benthic invertebrates in lakes through space and time. However, most studies typically focus on single habitats or individual taxa rather than sampling comprehensively in multiple habitats in a single system. The focus of this study was to quantify the spatial distribution of the macroinvertebrate taxa present in three major lake zones (profundal, offshore reef, and littoral) in Lake Winnebago, Wisconsin, with a particular emphasis on chironomid distribution, and to determine what factors drove patterns in variation. The profundal zone was sampled for two consecutive years in August to determine if changes in spatial variation occurred from one year to the next. Using a variety of sampling methods, invertebrates were collected from all three zones in 2013 and the profundal zone in 2014. Additionally, numerous physical and biological variables were measured at each sampling site. Benthic invertebrate densities ranged from 228 to 66,761 individuals per m2 and varied among lake zones and substrates. Zebra mussels (Dreissena polymorpha) were numerically dominant in both the offshore reef and littoral zones, while chironomids and oligochaetes comprised approximately 75% of profundal invertebrates sampled. Principal components analysis (PCA) showed that chironomid community structure differed highly among the three major lake zones. The littoral and offshore reef zones had the highest chironomid taxa richness, while the profundal zone, where Procladius spp. and Chironomus spp. were dominant, had lower richness. Chironomid density and community structure exhibited spatial variation within the profundal zone. The abundance of chironomids was correlated with several habitat variables, including organic matter content of the sediments. -
The Predatory Behaviour of Monopelopia Tenuicalcar (Kieffer, 1918) Larvae in a Laboratory Experiment
J. Limnol., 2018; 77(s1): 88-94 DOI: 10.4081/jlimnol.2018.1792 This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). The predatory behaviour of Monopelopia tenuicalcar (Kieffer, 1918) larvae in a laboratory experiment Vít SYROVÁTKA* Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic *Corresponding author: [email protected] ABSTRACT Larvae of the subfamily Tanypodinae are in general regarded as predators. Actual predation has been observed directly in only a few Tanypodinae species, but their behaviour and mouthpart morphology suggest that all Tanypodinae ingest food in the same way and thus are all predators. This view is reflected in most autecological databases. There remains uncertainty for some species, most notably for Monopelopia tenuicalcar (Kieffer, 1918). The uncertainty stems from the lack of direct observations, while gut content analysis points to non-animal food sources. A laboratory experiment was carried out in which larvae of Corynoneura sp. were offered to M. tenuicalcar in a set of Petri dishes. All predator and prey larvae were collected from the same locality, where they were the most abundant members of early spring littoral community. M. tenuicalcar showed clear predatory behaviour. In most cases (84 out of 86) the predator larva pierced the larva of Corynoneura and sucked its inner bodyonly content instead of engulfing it. Only in two cases did the predator engulf the whole victim. In all cases the seizing and processing of the prey was the same, with the ingestion of the food carried out by strong sucking. -
Chironomus Frontpage No 28
CHIRONOMUS Journal of Chironomidae Research No. 30 ISSN 2387-5372 December 2017 CONTENTS Editorial Anderson, A.M. Keep the fuel burning 2 Current Research Epler, J. An annotated preliminary list of the Chironomidae of Zurqui 4 Martin, J. Chironomus strenzkei is a junior synonym of C. stratipennis 19 Andersen, T. et al. Two new Neo- tropical Chironominae genera 26 Kuper, J. Life cycle of natural populations of Metriocnemus (Inermipupa) carmencitabertarum in The Netherlands: indications for a southern origin 55 Lin, X., Wang, X. A redescription of Zavrelia bragremia 67 Short Communications Baranov, V., Nekhaev, I. Impact of the bird-manure caused eutrophication on the abundance and diversity of chironomid larvae in lakes of the Bolshoy Aynov Island 72 Namayandeh, A., Beresford, D.V. New range extensions for the Canadian Chironomidae fauna from two urban streams 76 News Liu, W. et al. The 2nd Chinese Symposium on Chironomidae 81 In memoriam Michailova, P., et al. Prof. Dr. Wolfgang Friedrich Wülker 82 Unidentified male, perhaps of the Chironomus decorus group? Photo taken in the Madrona Marsh Preserve, California, USA. Photo: Emile Fiesler. CHIRONOMUS Journal of Chironomidae Research Editors Alyssa M. ANDERSON, Department of Biology, Chemistry, Physics, and Mathematics, Northern State University, Aberdeen, South Dakota, USA. Torbjørn EKREM, NTNU University Museum, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway. Peter H. LANGTON, 16, Irish Society Court, Coleraine, Co. Londonderry, Northern Ireland BT52 1GX. The CHIRONOMUS Journal of Chironomidae Research is devoted to all aspects of chironomid research and serves as an up-to-date research journal and news bulletin for the Chironomidae research community. -
Chironominae 8.1
CHIRONOMINAE 8.1 SUBFAMILY CHIRONOMINAE 8 DIAGNOSIS: Antennae 4-8 segmented, rarely reduced. Labrum with S I simple, palmate or plumose; S II simple, apically fringed or plumose; S III simple; S IV normal or sometimes on pedicel. Labral lamellae usually well developed, but reduced or absent in some taxa. Mentum usually with 8-16 well sclerotized teeth; sometimes central teeth or entire mentum pale or poorly sclerotized; rarely teeth fewer than 8 or modified as seta-like projections. Ventromental plates well developed and usually striate, but striae reduced or vestigial in some taxa; beard absent. Prementum without dense brushes of setae. Body usually with anterior and posterior parapods and procerci well developed; setal fringe not present, but sometimes with bifurcate pectinate setae. Penultimate segment sometimes with 1-2 pairs of ventral tubules; antepenultimate segment sometimes with lateral tubules. Anal tubules usually present, reduced in brackish water and marine taxa. NOTESTES: Usually the most abundant subfamily (in terms of individuals and taxa) found on the Coastal Plain of the Southeast. Found in fresh, brackish and salt water (at least one truly marine genus). Most larvae build silken tubes in or on substrate; some mine in plants, dead wood or sediments; some are free- living; some build transportable cases. Many larvae feed by spinning silk catch-nets, allowing them to fill with detritus, etc., and then ingesting the net; some taxa are grazers; some are predacious. Larvae of several taxa (especially Chironomus) have haemoglobin that gives them a red color and the ability to live in low oxygen conditions. With only one exception (Skutzia), at the generic level the larvae of all described (as adults) southeastern Chironominae are known. -
Food Microbiology Unveiling Hákarl: a Study of the Microbiota of The
Food Microbiology 82 (2019) 560–572 Contents lists available at ScienceDirect Food Microbiology journal homepage: www.elsevier.com/locate/fm Unveiling hákarl: A study of the microbiota of the traditional Icelandic T fermented fish ∗∗ Andrea Osimania, Ilario Ferrocinob, Monica Agnoluccic,d, , Luca Cocolinb, ∗ Manuela Giovannettic,d, Caterina Cristanie, Michela Pallac, Vesna Milanovića, , Andrea Roncolinia, Riccardo Sabbatinia, Cristiana Garofaloa, Francesca Clementia, Federica Cardinalia, Annalisa Petruzzellif, Claudia Gabuccif, Franco Tonuccif, Lucia Aquilantia a Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Via Brecce Bianche, Ancona, 60131, Italy b Department of Agricultural, Forest, and Food Science, University of Turin, Largo Paolo Braccini 2, Grugliasco, 10095, Torino, Italy c Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, Pisa, 56124, Italy d Interdepartmental Research Centre “Nutraceuticals and Food for Health” University of Pisa, Italy e “E. Avanzi” Research Center, University of Pisa, Via Vecchia di Marina 6, Pisa, 56122, Italy f Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche, Centro di Riferimento Regionale Autocontrollo, Via Canonici 140, Villa Fastiggi, Pesaro, 61100,Italy ARTICLE INFO ABSTRACT Keywords: Hákarl is produced by curing of the Greenland shark (Somniosus microcephalus) flesh, which before fermentation Tissierella is toxic due to the high content of trimethylamine (TMA) or trimethylamine N-oxide (TMAO). Despite its long Pseudomonas history of consumption, little knowledge is available on the microbial consortia involved in the fermentation of Debaryomyces this fish. In the present study, a polyphasic approach based on both culturing and DNA-based techniqueswas 16S amplicon-based sequencing adopted to gain insight into the microbial species present in ready-to-eat hákarl. -
Native Fish Species Boosting Brazilian's Aquaculture Development
Acta Fish. Aquat. Res. (2017) 5(1): 1-9 DOI 10.2312/ActaFish.2017.5.1.1-9 ORIGINAL ARTICLE Acta of Acta of Fisheries and Aquatic Resources Native fish species boosting Brazilian’s aquaculture development Espécies nativas de peixes impulsionam o desenvolvimento da aquicultura brasileira Ulrich Saint-Paul Leibniz Center for Tropical Marine Research, Fahrenheitstr. 6, 28359 Bremen, Germany *Email: [email protected] Recebido: 26 de fevereiro de 2017 / Aceito: 26 de março de 2017 / Publicado: 27 de março de 2017 Abstract Brazil’s aquaculture production has Resumo A produção da aquicultura do Brasil increased rapidly during the last two decades, aumentou rapidamente nas últimas duas décadas, growing from basically zero in the 1980s to over passando de quase zero nos anos 80 para mais de one half million tons in 2014. The development meio milhão de toneladas em 2014. O started with introduced international species such desenvolvimento começou através da introdução as shrimp, tilapia, and carp in a very traditional de espécies internacionais, tais como o camarão, a way, but has shifted to an increasing share of tilápia e a carpa, de uma forma muito tradicional, native species and focus on the domestic market. mas mudou com o aporte crescente de espécies Actually 40 % of the total production is coming nativas e foco no mercado interno. Atualmente, from native species such tambaquí (Colossoma 40% da produção total provém de espécies nativas macropomum), tambacu (hybrid from female C. como tambaqui (Colossoma macropomum), macropomum and male Piaractus mesopotamicus). tambacu (híbrido de C. macropomum e macho Other species like pirarucu (Arapaima gigas) or Piaractus mesopotamicus). -
Checklist of the Family Chironomidae (Diptera) of Finland
A peer-reviewed open-access journal ZooKeys 441: 63–90 (2014)Checklist of the family Chironomidae (Diptera) of Finland 63 doi: 10.3897/zookeys.441.7461 CHECKLIST www.zookeys.org Launched to accelerate biodiversity research Checklist of the family Chironomidae (Diptera) of Finland Lauri Paasivirta1 1 Ruuhikoskenkatu 17 B 5, FI-24240 Salo, Finland Corresponding author: Lauri Paasivirta ([email protected]) Academic editor: J. Kahanpää | Received 10 March 2014 | Accepted 26 August 2014 | Published 19 September 2014 http://zoobank.org/F3343ED1-AE2C-43B4-9BA1-029B5EC32763 Citation: Paasivirta L (2014) Checklist of the family Chironomidae (Diptera) of Finland. In: Kahanpää J, Salmela J (Eds) Checklist of the Diptera of Finland. ZooKeys 441: 63–90. doi: 10.3897/zookeys.441.7461 Abstract A checklist of the family Chironomidae (Diptera) recorded from Finland is presented. Keywords Finland, Chironomidae, species list, biodiversity, faunistics Introduction There are supposedly at least 15 000 species of chironomid midges in the world (Armitage et al. 1995, but see Pape et al. 2011) making it the largest family among the aquatic insects. The European chironomid fauna consists of 1262 species (Sæther and Spies 2013). In Finland, 780 species can be found, of which 37 are still undescribed (Paasivirta 2012). The species checklist written by B. Lindeberg on 23.10.1979 (Hackman 1980) included 409 chironomid species. Twenty of those species have been removed from the checklist due to various reasons. The total number of species increased in the 1980s to 570, mainly due to the identification work by me and J. Tuiskunen (Bergman and Jansson 1983, Tuiskunen and Lindeberg 1986). -
Nearctic Chironomidae
Agriculture I*l Canada A catalog of Nearctic Chironomidae A catalog of Catalogue des Nearctic Chironomidae Chironomidae delardgion ndarctique D.R. Oliver and M.E. Dillon D.R. Oliver et M.E. Dillon Biosystematics Research Centre Centre de recherches biosyst6matiques Ottawa, Ontario Ottawa (Ontario) K1A 0C6 K1A 0C6 and et P.S. Cranston P.S. Cranston Commonwealth Scientific and Organisation de la recherche Industrial Research scientifique et industrielle du Organization, Entomology Commonwealth, Entomologie Canberra ACT 2601 Canberra ACT 2601 Australia Australie Research Branch Direction g6n6rale de la recherche Agriculture Canada Agriculture Canada Publication 185718 Publication 185718 1 990 1 990 @Minister of Supply and Services Canada 1990 oMinistre des Approvisionnement et Services Canada 1990 Available in Canada through En vente au Canada par I'entremise de nos Authorized Bookstore Agents agents libraires agr66s et autres and other bmkstores libraires. or by mail from ou par la poste au Canadian Govemnent Publishing Centre Centre d'6dition du gouvemement du Supply and Servies Canada Canada Oltawa, Canada K1A 0S9 Approvisionnements et Seryies Canada Ottawa (Canada) K1A 0S9 Cat No. A43-I85'7ll99O N" de cat A43-785117990 ISBN 0-660-55839-4 ISBN 0-660-55839-4 Price subject to change without notic€ Prix sujet i changemenl sans pr6avis Canadian Cataloguing in Publication Data Donn6ee de catalogage avant publication (Canada) Oliver, D.R. Oliver, D.R. A mtalog of Nearctic Chironomidae A atalog of Nearctic Chironomidae (Publication ; 1857/8) (Publiation ; 18578) Text in English and French- Texle en anglais et en frangais. Includes bibliographiel referenes. Comprend des r6f6rences bibliogr. Issued by Research Branch, Agriculture Canada. -
The Distribution and Zoogeography of Freshwater Ostracoda (Crustacea
Bijdragen tot de Dierkunde, 54 (1): 25-50 — 1984 Amsterdam Expeditions to the West Indian Islands, Report 38. The distribution and zoogeography of freshwater Ostracoda (Crustacea) in the West Indies, with emphasis on species inhabiting wells by Nico W. Broodbakker Institute of Taxonomie Zoology, University of Amsterdam, P.O. Box 20125, 1000 HC Amsterdam, The Netherlands Summary Résumé The distribution of Ostracoda in islands of discute freshwater the On la distribution des Ostracodes dulcicoles sur les the West Indies and part of the Venezuelan mainland is îles des Indes Occidentales et dans certaines zones de discussed. The ostracod fauna of wells and epigean Venezuela. La faune d’Ostracodes des puits et des habitats habitats Some Certaines des is compared. species, e.g. Cypretta spp. are épigés est comparée. espèces (par exemple found often in others significantly more wells, are only espèces de Cypretta) sont trouvées nettement plus souvent found in and dans des d’autres epigean habitats, e.g. Hemicypris spp. Cypris puits, (par exemples Hemicypris spp. et subglobosa. Some species are found significantly more often Cypris subglobosa) sont rencontrées seulement dans des in others to habitats il epigean habitats, e.g. Stenocypris major, seem épigés. Ensuite, y a des espèces nettement plus have and trouvées dans les habitats no preference, e.g. Physocypria affinis Cypridopsis souvent épigés (Stenocypris major tandis spp. par exemple), que d’autres (exemples: Physocypria occurrence of Ostracoda and other faunal semblent avoir de Joint groups affinis et Cypridopsis spp.) ne pas préfé- in wells is studied, especially for hadziid amphipods, which rence. are to on small crustaceans.