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YWG Conference Proceedings 2014
FOSAF PROCEEDINGS OF THE 18 TH YELLOWFISH WORKING GROUP CONFERENCE BLACK MOUNTAIN HOTEL, THABA ´NCHU, FREE STATE PROVINCE Image courtesy of Carl Nicholson EDITED BY PETER ARDERNE 1 18 th Yellowfish Working Group Conference CONTENTS Page Participants 3 Opening address – Peter Mills 4 State of the rivers of the Kruger National Park – Robin Petersen 6 A fish kill protocol for South Africa – Byron Grant 10 Phylogeographic structure in the KwaZulu-Natal yellowfish – Connor Stobie 11 Restoration of native fishes in the lower Rondegat River after alien fish eradication: 15 an overview of a successful conservation intervention.- Darragh Woodford Yellowfish behavioural work in South Africa: past, present and future research – 19 Gordon O’Brien The occurrence and distribution of yellowfish in state dams in the Free State. – Leon 23 Barkhuizen; J.G van As 2 & O.L.F Weyl 3 Yellowfish and Chiselmouths: Biodiversity Research and its conservation 24 implications - Emmanuel Vreven Should people be eating fish from the Olifants River, Limpopo Province? 25 – Sean Marr A review of the research findings on the Xikundu Fishway & the implications for 36 fishways in the future – Paul Fouche´ Report on the Vanderkloof Dam- Francois Fouche´ 48 Karoo Seekoei River Nature Reserve – P C Ferreira 50 Departmental report: Biomonitoring in the lower Orange River within the borders 54 of the Northern Cape Province – Peter Ramollo Free State Report – Leon Barkhuizen 65 Limpopo Report – Paul Fouche´ 68 Conference summary – Peter Mills 70 Discussion & Comment following -
Final Copy 2020 05 12 Watso
This electronic thesis or dissertation has been downloaded from Explore Bristol Research, http://research-information.bristol.ac.uk Author: Watson, Henry B Title: Unrecognised endemic biodiversity within East African Chiloglanis catfish populations General rights Access to the thesis is subject to the Creative Commons Attribution - NonCommercial-No Derivatives 4.0 International Public License. A copy of this may be found at https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode This license sets out your rights and the restrictions that apply to your access to the thesis so it is important you read this before proceeding. Take down policy Some pages of this thesis may have been removed for copyright restrictions prior to having it been deposited in Explore Bristol Research. However, if you have discovered material within the thesis that you consider to be unlawful e.g. breaches of copyright (either yours or that of a third party) or any other law, including but not limited to those relating to patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please contact [email protected] and include the following information in your message: •Your contact details •Bibliographic details for the item, including a URL •An outline nature of the complaint Your claim will be investigated and, where appropriate, the item in question will be removed from public view as soon as possible. Unrecognised endemic biodiversity within East African Chiloglanis catfish populations. Henry Watson A dissertation submitted to the University of Bristol in accordance with the requirements for award of the degree of Masters by Research in the Faculty of Life Sciences. -
Chiloglanis) with Emphasis on the Limpopo River System and Implications for Water Management Practices
SYSTEMATICS AND PHYLOGEOGRAPHY OF SUCKERMOUTH SPECIES (CHILOGLANIS) WITH EMPHASIS ON THE LIMPOPO RIVER SYSTEM AND IMPLICATIONS FOR WATER MANAGEMENT PRACTICES. Report to the Water Research Commission by MJ Matlala, IR Bills, CJ Kleynhans & P Bloomer Department of Genetics University of Pretoria WRC Report No. KV 235/10 AUGUST 2010 Obtainable from Water Research Commission Publications Private Bag X03 Gezina, Pretoria 0031 SOUTH AFRICA [email protected] This report emanates from a project titled: Systematics and phylogeography of suckermouth species (Chiloglanis) with emphasis on the Limpopo River System and implications of water management practices (WRC Project No K8/788) DISCLAIMER This report has been reviewed by the Water Research Commission (WRC) and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the WRC, nor does mention of trade names or commercial products constitute endorsement or recommendation for use ISBN 978-1-77005-940-5 Printed in the Republic of South Africa ii EXECUTIVE SUMMARY The genus Chiloglanis includes 45 species of which eight are described from southern Africa. The genus is characterized by jaws and lips that are modified into a sucker or oral disc used for attachment to a variety of substrates and feeding in lotic systems. The suckermouths are typically found in fast flowing waters but over varied substrates and water depths. This project focuses on three species, namely Chiloglanis pretoriae van der Horst 1931, C. swierstrai van der Horst 1931 and C. paratus Crass 1960, all of which occur in the Limpopo River System. The suckermouth catfishes have been extensively used in aquatic surveys as indicators of impacts from anthropogenic activities and the health of the river systems. -
Development of Protocols for Acute Fish Toxicity Bioassays, Using Suitable Indigenous Freshwater Fish Species
Development of Protocols for Acute Fish Toxicity Bioassays, Using Suitable Indigenous Freshwater Fish Species Report to the Water Research Commission by VE Rall*, JS Engelbrecht+, H Musgrave+, LJ Rall*, DBG Williams# and R Simelane+ ECOSUN cc* Aquatic Research Unit, Mpumalanga Parks Board+ Department of Chemistry and Biochemistry, University of Johannesburg# WRC Report No. 1313/2/10 ISBN 978-1-77005-584-1 Set No. 1-77005-240-2 April 2010 DISCLAIMER This report has been reviewed by the Water Research Commission (WRC) and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the WRC, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. ii EXECUTIVE SUMMARY The Poecilia reticulata (Guppy) test is currently the preferred fish toxicity test being used in most South African laboratories. There are, however, several issues which hamper the successful use of the Guppy test in bioassays (i.e. it is an exotic species and may therefore not be representative of the fish fauna in South African ecosystems, significant variation was detected in results between laboratories and disease result in frequent loss of brood stock). The above emphasizes not only the need for nationally standardized fish bioassay protocols, but also for the use of indigenous fish representing receptor organisms actually present in aquatic ecosystems will ensure the extrapolation of meaningful, relevant and ecologically significant results and management objectives from ecotoxicity tests. This is specifically significant in view of the increasingly important role that toxicity-testing plays in water resource management in South Africa. -
Study of Genetic Diversity in the Threatened Ornamental Fishes, Badis Badis (Hamilton- Buchanan, 1822) and Amblyceps Mangois (H
Study of Genetic Diversity in the Threatened Ornamental Fishes, Badis badis (Hamilton- Buchanan, 1822) and Amblyceps mangois (Hamilton-Buchanan, 1822) from Terai and the Dooars region of North Bengal, India A THESIS SUBMITTED TO THE UNIVERSITY OF NORTH BENGAL FOR THE AWARD OF DOCTOR OF PHILOSOPHY (Ph.D.) IN ZOOLOGY BY TANMAY MUKHOPADHYAY SUPERVISOR PROF. SOUMEN BHATTACHARJEE DEPARTMENT OF ZOOLOGY UNIVERSITY OF NORTH BENGAL November, 2018 DEDICATED TO MY PARENTS -: PREFACE :- The research work has been started in 2013 and documented in the dissertation entitled “Study of Genetic Diversity in the Threatened Ornamental Fishes, Badis badis (Hamilton-Buchanan, 1822) and Amblyceps mangois (Hamilton-Buchanan, 1822) from Terai and the Dooars region of North Bengal, India.” under the supervision of Prof. (Dr.) Soumen Bhattacharjee, Cell and Molecular Biology Laboratory, Department of Zoology, University of North Bengal. The studied region is located in the sub-Himalayan Terai and Dooars region of North Bengal, India. The important feature of this region is rich diversity in the faunal and floran resource. The snow capped mountain peaks, the dense foothill, the luxuriant forests, the frothing rivers, the lush paddy fields, vibrant green tea gardens makes this region of North Bengal a hotbed of bio-diversity or biodiversity hotspot. This region is intersected by numerous streams, rivers and rivulets. All their sources are the Darjeeling Himalaya in the north and are mainly snow fed and rain fed. Most of the rivers drain considerable amount of water during rainy season due to their large catchment area in the hills. Over last few years, wild populations two ornamental fishes viz., Badis badis and Amblyceps mangois have declined steadily mainly due of habitat loss, overexploitation, pollution, and destructive fishing procedures; the information is confirmed by the NBFGR (National Bureau of Fish Genetic Resources), India country’s apex body for the purpose. -
Conservation of Tigerfish, Hydrocynus Vittatus, in the Kruger National Park with the Emphasis on Establishing the Suitability Of
Conservation of tigerfish, Hydrocynus vittatus, in the Kruger National Park with the emphasis on establishing the suitability of the water quantity and quality requirements for the Olifants and Luvuvhu rivers Report to the WATER RESEARCH COMMISSION by NJ Smit1, V Wepener1, W Vlok3, GM Wagenaar2 & JHJ van Vuren2 1North West University 2University of Johannesburg 3BioAssets CC WRC Report No. 1922/1/12 ISBN 978-1-4312-0358-1 JANUARY 2013 Obtainable from Water Research Commission Private Bag X03 Gezina, 0031 [email protected] or download from www.wrc.org.za DISCLAIMER This report has been reviewed by the Water Research Commission (WRC) and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the WRC, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. © WATER RESEARCH COMMISSION ii EXECUTIVE SUMMARY BACKGROUND Hydrocynus vittatus Castelnau, 1861, commonly known as tigerfish, is a flagship species widely distributed in the North Eastern region of South Africa, and are easily identified by the public. This species is actively targeted and utilised by angling and subsistence fishing communities and also used as indicator species by resource and water quality managers to transfer ecosystem related information to the public. Tigerfish therefore has a high ecological, economical and social value to South Africans. Unfortunately, they are lost through habitat changes caused by water extraction, pollution and obstructions like dams and weirs. Tigerfish depend greatly on the available natural habitats to breed, feed and function appropriately. A slight change in the environment may cause depletion of the overall population. -
A Socio-Biological Study of the Aquatic Resources and Their Utilization in an Underdeveloped Rural Region, the Mutshindudi River Catchment
A SOCIO-BIOLOGICAL STUDY OF THE AQUATIC RESOURCES AND THEIR UTILIZATION IN AN UNDERDEVELOPED RURAL REGION, THE MUTSHINDUDI RIVER CATCHMENT VOLUME 2 REPORT TO THE WATER RESEARCH COMMISSION by P.S.O. Fouche, I.G. Gaigher (editor), A Szubarga, C Todd, B.C.W. van der Waal, T. van Ree, C. Venter, C Wood and P. Weisser (in alphabetical order) UNIVERSITY OF VENDA FOR SCIENCE AND TECHNOLOGY PRIVATE BAG X5050 THOHOYANDOU WRC Report No.: 714/3/01 ISBN No. 1 86845 729 X ISBN Set No. 1 86845 730 3 April 2001 TABLE OF CONTENTS PAGE LIST OF TABLES 3 LIST OF FIGURES 4 LIST OF APPENDICES 5 10 A CHEMICAL PROFILE OF THE MUTSHINDUDI RIVER, NORTHERN PROVINCE 6 11 AN INVESTIGATION INTO THE PATHOGENIC M1CROBIAL CONTAMINATION OF THE MUTSHINDUDI RJVER 12 12 THE STRUCTURE AND COMPOSITION OF PLANT COMMUNITIES IN THE MUTSHINDUDI RIVER CATCHMENT 21 13 FISH AS INDICATORS OF WATER QUALITY IN THE MUTSHTNDUDI RIVER CATCHMENT 45 13 1 FISH DISTRIBUTION IN THE MUTSHINDUDI RIVER SYSTEM 45 13.2 TROPHIC NICHE DIFFERENTIATION IN RHEOPHILIC FISHES OF THE MUTSHINDUDI RIVER SYSTEM 52 13.3 AN INDEX OF BIOTIC INTEGRITY BASED ON RHEO- PHILIC FISH 70 14 AVIFAUNA OF THE MUTSHINDUDI RIVER CATCHMENT : INDICATOR SPECIES FOR ECOLOGICAL INTEGRITY 77 15 GENERAL DISCUSSION AND RECOMMENDATIONS 103 2 LIST OF TABLES PAGE Table 10.1 Sampling sites 7 Table 10.2 Suspended solids, mg.dm"3 8 Table 10 3 Total dissolved solids, mg.dm"3 8 Table 10.4 Calcium concentration, mg.dm"3 8 Table 10.5 Magnesium concentration, mg.dm"3 8 Table 10.6 Zinc concentration, mg.dm"3 9 Table 10.7 Representative chemical -
Zootaxa, Checklist of Catfishes, Recent and Fossil
MALAPTERURUS La Cepède, 1803 Malapterurus La Cepède, 1803: 90. Type species: Silurus electricus Gmelin, 1789. Type by designation under ple- nary powers; placed on Official List (ICZN Opinion 93, Direction 56). Gender: Masculine. Anacanthus Minding 1832: 117. Type species: Silurus electricus Gmelin, 1789. Type by monotypy. Preoccupied by Anacanthus Gray, 1830, in fishes. Gender: Masculine. Malopterurus Agassiz, 1846: 223. Type species: Silurus electricus Gmelin, 1789. Type by being a replacement name. Unjustified emendation of Malapterurus La Cepède, 1803. Gender: Masculine. Remarks: Malapterus Jarocki, 1822, Malapturus Swainson, 1838, and Malacopterurus Gill, 1890, are considered to be incorrect subsequent spellings, and therefore unavailable names, in ICZN Direction 56. Forsskål (1775: 16) applied the generic name of the electric ray, Torpedo, to his account of the electric catfish of the Nile. Malapterurus barbatus Norris, 2002 Malapterurus barbatus Norris, 2002: 88, fig. 49. Type locality: Sierra Leone, Sewa River system, Bagbe River at Yfin, 8º42'N, 11º05'W. Holotype: MNHN 1990-100. Distribution: Western Guinean rivers from the Kolente River, Sierra Leone, to the Borlor River, Liberia (Norris, 2002). Malapterurus beninensis Murray, 1855 Malapterurus Beninensis Murray, 1855: 20, pl. Type locality: Old Calabar. Syntypes: BMNH 1856.1.16.1 (2), possi- bly NMSZ 1855.27 (2). ? Malapterurus affinis Günther, 1864: 220. Type locality: Old Calabar. Syntypes: BMNH 1859.11.20.1 (1), BMNH 1864.7.9.1 (1). Distribution: Coastal plains of west central Africa, from the Volta River, Ghana, to the Shiloango River, Angola (Norris, 2002). Remarks: Synonymy of Malapterurus affinis with M. beninensis considered tentative by Norris (2002). Malapterurus cavalliensis Roberts, 2000 Malapterurus cavalliensis Roberts, 2000: 8. -
WATER TEMPERATURE and FISH DISTRIBUTION in the Sable RIVER SYSTEM: TOWARDS the DEVELOPMENT of an ADAPTIVE MANAGEMENT TOOL
WATER TEMPERATURE AND FISH DISTRIBUTION IN THE SABlE RIVER SYSTEM: TOWARDS THE DEVELOPMENT OF AN ADAPTIVE MANAGEMENT TOOL by NICHOLAS ANDREW RIVERS-MOORE Submitted in fulfilment ofthe academic requirements for the degree of Doctor ofPhilosophy in the School ofBioresources Engineering and Environmental Hydrology University ofNatal Pietermaritzburg 2003 11 ABSTRACT Water temperatures are a fundamental water quality component, and a key abiotic determinant of fish distribution patterns in rivers. A river 's thermal regime is the product of a multitude of thermal drivers and buffers interacting at different temporal and spatial scales, including, inter alia, air temperatures, flow volumes (including groundwater flows and lateral inputs from tributaries), channel geomorphology and riparian vegetation. "Healthy" river systems are self-sustaining, with adequate thermal variability to maintain biotic diversity. Temporal variability of flow volumes and water temperatures, and how these change along the longitudinal axis ofa river, contribute towards a rivers "signature". Rivers that have had their signatures altered through anthropogenic impacts may no longer be sustainable, and require varying levels of management. Successful river management should include a quantification ofthese signatures , a definition ofthe "desired" state which management aims to achieve, associated "thresholds" of change or concern, and monitoring programmes. Such an approach requires flexibility and adaptability, as well as appropriate tools being available to natural resource managers. Indices, the utility of which are enhanced when included in predicative modelling systems, are a common means of assessing system variability and change. The degree of confidence placed in such tools depends on the level of fundamental science, and the degree of system understanding, underpinning them.