National Environmental Management » Biodiversity

Total Page:16

File Type:pdf, Size:1020Kb

National Environmental Management » Biodiversity 4 No. 39899 GOVERNMENT GAZETTE, 1 APRIL 2016 GOVERNMENT NOTICES • GOEWERMENTSKENNISGEWINGS Environmental Affairs, Department of/ Omgewingsake, Departement van DEPARTMENT OF ENVIRONMENTAL AFFAIRS DEPARTMENT OF ENVIRONMENTALAFFAIRS NO. 406 NO 01 APRIL 2016 406 National Environmental Management: Biodiversity Act (10/2004): Biodiversity Management Plan for the Clanwilliam Sandfish, Labeo Seeberi 39899 2016 NATIONAL ENVIRONMENTAL MANAGEMENT: BIODIVERSITYACT, 2004 (ACT NO. 10 OF 2004) BIODIVERSITY MANAGEMENT PLAN FOR THE CLANWILLIAMSANDFISH, LABEO SEEBERI Bomo Edith Edna Molewa, Minister of EnvironmentalAffairs, hereby publish the Management Plan for the Clanwilliam Biodiversity Sandfish, Labeo Seeberi, interms of section 43(3) of the National Environmental Management: Biodiversity Act, 2004 (ActNo. 10 of 2004), set out in hereto. the Schedule BOMO E ' H WA MINISTER OF NVIRONMENTALAFFAIRS This gazette is also available free online at www.gpwonline.co.za STAATSKOERANT, 1 APRIL 2016 No. 39899 5 SCHEDULE BIODIVERSITY MANAGEMENT PLAN-­‐SPECIES (BMP-­‐S) FOR THE CLANWILLIAM SANDFISH LABEO ( SEEBERI) J 1CLANWILLIAM SANDFISH . 1._: . Biodiversity Management Plan h; ) ti.,v ¡ 1(+" ` - . ..rl'i `, . - _ , _, .... Bruce Paxton1, Peter Ramollo2, Mandy Schumann3, Martine Jordaan4 and Dean Impson4 1 The Freshwater Consulting Group (FCG) 2Northern Cape Department Nature and Environment Conservation 3Northern Cape Department Nature and Environment Conservation 4CapeNature This gazette is also available free online at www.gpwonline.co.za 6 No. 39899 GOVERNMENT GAZETTE, 1 APRIL 2016 TITLE : BIODIVERSITY MANAGEMENT PLAN-­‐SPECIES (BMP-­‐S) FOR THE CLANWILLIAM SANDFISH LABEO ( SEEBERI) Lead agencies : Northern Cape Department Nature and Environment Conservation, CapeNature Implementing Agents : CapeNature Northern Cape Department Nature and Environment Conservation Department of Water Affairs Nieuwoudtville Municipality Status of Report : Draft for Comment Key Words : Biodiversity Management Plan Date of this Issue : September 201 2 This gazette is also available free online at www.gpwonline.co.za STAATSKOERANT, 1 APRIL 2016 No. 39899 7 ACKNOWLEDGMENTS The Project Team would like to acknowledge the help of the following people and organisations. The financial support of the Table Mountain Fund (TMF) made this project possible. In particular we would like to thank Onno Huyser and Carla Wood of the TMF for their guidance and administrative support. Wilna Kloppers of the Department of Water Affairs (DWA) made their offices available for the second stakeholder engagement meeting held in Cape . Town Thank you to both Wilna and Francois van Heerden also of DWA for their support of this initiative. Dean Impson (CapeNature) provided invaluable support and assistance throughout the development of the Biodiversity Management Plan . (BMP) Bettina Koelle of Indigo Development and Change made the offices of her organization available for meetings and was key to the success of stakeholder engagement in Nieuwoudtville. JC van der Walt and members of the Rietkuil Trust made their property available to the monitoring team. Their support throughout the project has been much appreciated. To all the stakeholders who supported this process and provided their input, thank you. Thanks are also due to the following people who assisted with fieldwork and monitoring: Bentley Engelbrecht (DWA), Graeme Williams (DWA), Thembela Bushula (DWA), Klaus Menk, Lucy Kingsley, Wessel Pretorius (OKNR), Leon Koopman (OKNR), Koos Koopman (OKNR), Koos Cloete (OKNR), Nathan Kotze (OKNR), Riaan van der Walt (CapeNature). This gazette is also available free online at www.gpwonline.co.za 8 No. 39899 GOVERNMENT GAZETTE, 1 APRIL 2016 EXECUTIVE SUMMARY 1. INTRODUCTION The Clanwilliam sandfish Labeo seeberi is listed by the IUCN Red Data List and by the South Africa’s Threatened or Protected Species Regulations of the National Environmental : Management Biodiversity Act,2004 (Act No. 10 of 2004) (NEMBA) as Endangered B2ab(iii,v) (IUCN 2010). This recognise hat t species facing an extremely high risk of extinction and is therefore subject to the restrictions imposed by national legislation on its removal from the wild, transport, trade and use. There are currently conservation initiatives aimed at protecting populations of the two larger cyprinids in the catchment (the Clanwilliam yellowfish and sawfin), but these initiatives will not secure populations of Clanwilliam sandfish, despite the fact that it ranks as one of the most ape threatened species in the Western C and has been identified as a high conservation priority by CapeNature. Adult populations of this species are restricted to the northern reaches of the Doring River and successfully recruiting populations are known to occur only in confined the reaches of Oorlogskloof-­‐Koebee River system in the Northern and Western Cape. Responsibility for the conservation and management of the sandfish are shared by the conservation authorities in the two provinces – the Western and Northern Cape – in which it occurs, i.e. CapeNature and Northern Cape Department of Environment and Nature Conservation. Responsibility also extends to municipalities, as well as to private landowners that fall both within and outside its distribution range where land-­‐use practices impact n o downstream aquatic habitat. Private landowners, through conservancies and stewardship programmes are expected to manage land and water resources in a manner consistent with national environmental legislation and to adhere to the he restrictions imposed on t movement and introduction of alien invasive species. The following Vision and Desired State w for the Clan illiam sandfish BMP-­‐S was agreed upon -­‐ by the BMP S team and at stakeholder meetings: VISION AND DESIRED STATE To secure the long term the survival of Clanwilliam sandfish in the wild by: (i) elevating its status as an flagship species of the Doring and Oorlogskloof rivers – some of the last major free-­‐flowing rivers in the country: (ii) consolidate extant populations by reducing the risks of further invasions by alien fish species, especially in the Oorlogskloof-­‐Koebee Management Unit; (iii) reducing the risks posed by increasing water demand and unsustainable land management practices in all catchments that fall within its distribution range; (iv) increase knowledge of its biology and ecology and applying this knowledge to adaptive management strategies. (v) Identifying priority areas in its original distribution range which can be cleared of alien fishes, allowing for re-­‐introduction of the species. The following five strategic domains for the -­‐ BMP S are considered to be: (a) Advocacy and Awareness; (b) Alien Invasive Fish Management; (c) Land and Water Resources Management; (d) Research and Monitoring; (e) Re-­‐introduction. This gazette is also available free online at www.gpwonline.co.za STAATSKOERANT, 1 APRIL 2016 No. 39899 9 SPECIES BACKGROUND Clanwilliam sandfish are endemic to the mainstem and tributaries of the Olifants and Doring Rivers, Western Cape, South Africa. They were formerly distributed throughout the catchment but now only occur in the middle and northern reaches of the mainstem Doring River and some of its tributaries, notably the Koebee River, called the Oorlogskloof in its upper reaches. Historical evidence suggests that their current distribution ranges have shrunk considerably from former ranges. They are one of only two indigenous id Labeine cyprin species to be found in Western Cape freshwater ecosystems; the other being L. umbratus which is found in the Gouritz River system. As a consequence of their rarity, conservation status and lack of research on the species, little is known regarding ife the l history of the Clanwilliam sandfish. They are more than likely rheophilic, requiring fast-­‐flowing waters for spawning and deep pools -­‐ for feeding, over wintering and over-­‐summering. Surveys undertaken in 2001 suggested that although adults were present in the mainstem Doring River and appeared to be reproducing, very few recruits were surviving their first year of life due to alien fish predation. The main source of recruits appeared to be non-­‐invaded tributaries, notably the -­‐ Oorlogskloof Koebee catchment. Surveys by CapeNature and the Northern Cape Department of Environment and Nature Conservation in 2010 showed that populations of sandfish are successfully recruiting in the Oorlogskloof River above the upstream limit of bass invasion, lapia but that banded ti had invaded from the Nieuwoudtville Municipal Dam upstream. THREATS TO THE CLANWILLIAM SANDFISH Alien invasive fish : species As with many of the other indigenous fish species in the Doring River, the primary threat to the persistence of the sandfish is predation and competition by alien invasive fish species, notably, smallmouth bass (Micropterus dolomieu), largemouth Micropterus bass ( salmoides) and bluegill sunfish (Lepomis macrochirus) which were introduced as sport fish by the then Department of Inland Fisheries during the earlier half of the twentieth century. Water quantity: The sandfish is considered a synchronous rheophilic spawner requiring optimal flow and temperature conditions for successful reproduction. Natural hydrological variability, together with water regulation and abstraction is therefore likely to play -­‐ a major role in year class strength. Water resources in both the Olifants and Doring Rivers are heavily exploited. This is especially true -­‐ of the Olifants River where run of-­‐river
Recommended publications
  • Freshwater Fishes
    WESTERN CAPE PROVINCE state oF BIODIVERSITY 2007 TABLE OF CONTENTS Chapter 1 Introduction 2 Chapter 2 Methods 17 Chapter 3 Freshwater fishes 18 Chapter 4 Amphibians 36 Chapter 5 Reptiles 55 Chapter 6 Mammals 75 Chapter 7 Avifauna 89 Chapter 8 Flora & Vegetation 112 Chapter 9 Land and Protected Areas 139 Chapter 10 Status of River Health 159 Cover page photographs by Andrew Turner (CapeNature), Roger Bills (SAIAB) & Wicus Leeuwner. ISBN 978-0-620-39289-1 SCIENTIFIC SERVICES 2 Western Cape Province State of Biodiversity 2007 CHAPTER 1 INTRODUCTION Andrew Turner [email protected] 1 “We live at a historic moment, a time in which the world’s biological diversity is being rapidly destroyed. The present geological period has more species than any other, yet the current rate of extinction of species is greater now than at any time in the past. Ecosystems and communities are being degraded and destroyed, and species are being driven to extinction. The species that persist are losing genetic variation as the number of individuals in populations shrinks, unique populations and subspecies are destroyed, and remaining populations become increasingly isolated from one another. The cause of this loss of biological diversity at all levels is the range of human activity that alters and destroys natural habitats to suit human needs.” (Primack, 2002). CapeNature launched its State of Biodiversity Programme (SoBP) to assess and monitor the state of biodiversity in the Western Cape in 1999. This programme delivered its first report in 2002 and these reports are updated every five years. The current report (2007) reports on the changes to the state of vertebrate biodiversity and land under conservation usage.
    [Show full text]
  • Proposed Realignment of Gauging Weirs Downstream of the Bulshoek Dam and in the Doring River, Western Cape Province
    PROPOSED REALIGNMENT OF GAUGING WEIRS DOWNSTREAM OF THE BULSHOEK DAM AND IN THE DORING RIVER, WESTERN CAPE PROVINCE Phase 1 – Heritage Impact Assessment Issue Date - 3 December 2015 Revision No. - 2 Project No. - 131HIA PGS Heritage (Pty) Ltd PO Box 32542 Totiusdal 0134, T +27 12 332 5305 F: +27 86 675 8077 Reg No 2003/008940/07 Declaration of Independence The report has been compiled by PGS Heritage, an appointed Heritage Specialist for Zitholele Consulting. The views stipulated in this report are purely objective and no other interests are displayed during the decision making processes discussed in the Heritage Impact Assessment Process. HERITAGE CONSULTANT - PGS Heritage CONTACT PERSON - W Fourie Tel - +27 (0) 12 332 5305 Email - [email protected] SIGNATURE - ______________________________ ACKNOWLEDGEMENT OF RECEIPT CLIENT - Zitholele Consulting CONTACT PERSON - Kariesha Tilakram T: +27 11 207 2060 E: [email protected] SIGNATURE - ______________________________ HIA – Realignment of Gauging Weirs Downstream of the Bulshoek Dam and in the Doring River ii Date - 11 November 2015 Proposed realignment of gauging weirs downstream of the Bulshoek Dam and in Document Title - the Doring River, Western Cape Province Control Name Signature Designation Author W. Fourie Heritage Specialists/ Principal Investigator Reviewed K. Tilakram Zitholele Consulting HIA – Realignment of Gauging Weirs Downstream of the Bulshoek Dam and in the Doring River iii EXECUTIVE SUMMARY PGS Heritage (PGS) was appointed by Zitholele Consulting to undertake a Heritage Impact Assessment (HIA) that forms part of the Basic Environmental Impact Report (BAR) for the proposed realignment of the gauging weirs downstream of the Bulshoek Dam and in the Doring river, Western Cape Province.
    [Show full text]
  • Cederberg-IDP May 2020 – Review 2020-2021
    THIRD REVIEW: 2020/2021 MAY 2020 SECTIONS REVISED THIRD REVISION TO THE FOURTH GENERATION IDP ................... 0 3.8. INTERGOVERNMENTAL RELATIONS ................................. 67 FOREWORD BY THE EXECUTIVE MAYOR.................................. 2 3.9. INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) ...... 68 ACKNOWLEDGEMENT FROM THE MUNICIPAL MANAGER AND IMPORTANT MESSAGE ABOUT COVID-19 ................................. 4 CHAPTER 4: STRATEGIC OBJECTIVES AND PROJECT ALIGNMENT .. 71 EXECUTIVE SUMMARY ....................................................... 5 4.1 IMPROVE AND SUSTAIN BASIC SERVICE DELIVERY AND CHAPTER I: STATEMENT OF INTENT ...................................... 9 INFRASTRUCTURE .................................................... 73 1.1. INTRODUCTION ......................................................... 9 A. Water B. Electricity 1.2. THE FOURTH (4TH) GENERATION IDP .............................. 10 C. Sanitation D. Refuse removal / waste management 1.3. THE IDP AND AREA PLANS ........................................... 11 E. Roads F. Comprehensive Integrated Municipal Infrastructure Plan 1.4. POLICY AND LEGISLATIVE CONTEXT ................................ 11 G. Stormwater H. Integrated Infrastructure Asset Management Plan 1.5. STRATEGIC FRAMEWORK OF THE IDP .............................. 13 I. Municipal Infrastructure Growth Plan 1.6. VISION, MISSION, VALUES ............................................ 14 4.2 FINANCIAL VIABILITY AND ECONOMICALLY SUSTAINABILITY .... 87 1.7. STRATEGIC OBJECTIVES ............................................
    [Show full text]
  • Conference Proceedings 2006
    FOSAF THE FEDERATION OF SOUTHERN AFRICAN FLYFISHERS PROCEEDINGS OF THE 10 TH YELLOWFISH WORKING GROUP CONFERENCE STERKFONTEIN DAM, HARRISMITH 07 – 09 APRIL 2006 Edited by Peter Arderne PRINTING & DISTRIBUTION SPONSORED BY: sappi 1 CONTENTS Page List of participants 3 Press release 4 Chairman’s address -Bill Mincher 5 The effects of pollution on fish and people – Dr Steve Mitchell 7 DWAF Quality Status Report – Upper Vaal Management Area 2000 – 2005 - Riana 9 Munnik Water: The full picture of quality management & technology demand – Dries Louw 17 Fish kills in the Vaal: What went wrong? – Francois van Wyk 18 Water Pollution: The viewpoint of Eco-Care Trust – Mornē Viljoen 19 Why the fish kills in the Vaal? –Synthesis of the five preceding presentations 22 – Dr Steve Mitchell The Elands River Yellowfish Conservation Area – George McAllister 23 Status of the yellowfish populations in Limpopo Province – Paul Fouche 25 North West provincial report on the status of the yellowfish species – Daan Buijs & 34 Hermien Roux Status of yellowfish in KZN Province – Rob Karssing 40 Status of the yellowfish populations in the Western Cape – Dean Impson 44 Regional Report: Northern Cape (post meeting)– Ramogale Sekwele 50 Yellowfish conservation in the Free State Province – Pierre de Villiers 63 A bottom-up approach to freshwater conservation in the Orange Vaal River basin – 66 Pierre de Villiers Status of the yellowfish populations in Gauteng Province – Piet Muller 69 Yellowfish research: A reality to face – Dr Wynand Vlok 72 Assessing the distribution & flow requirements of endemic cyprinids in the Olifants- 86 Doring river system - Bruce Paxton Yellowfish genetics projects update – Dr Wynand Vlok on behalf of Prof.
    [Show full text]
  • Upper Olifants River Survey
    UPPER OLIFANTS RIVER SURVEY An assessment of woody riparian and alien vegetation Sam Jack1, Greg Nicolson2 & Ian Durbach3 January 2016 1. Corresponding author. Plant Conservation Unit, Department of Biological Sciences, University of Cape Town, Private Bag X3, Rondebosch, 7701, Cape Town. T: 021 650 2483, E: [email protected] 2. Greg Nicolson Consulting, 9 Recreation Road, Muizenberg, 7945, Cape Town 3. Centre for Statistics in Ecology, Environment, and Conservation, Department of Statistical Sciences, University of Cape Town, 7701, Cape Town 1 Introduction The perennial Olifants Rivers system arises in the high‐elevation Agter‐Witzenberg Valley north of Ceres and flows for over 250 km in a north‐westerly direction to its mouth near the West Coast town of Papendorp (Figure 1). Along its course to the sea the Olifants is supplemented by several smaller perennial rivers, such as the Thee, Noordhoek, Boontjies, Rondegat, Jan Dissels, and the non‐ perennial Sout. Its main tributary is the Doring River feeding in from the east at around 2/3rd’s of its length. Two significant dams, namely the Clanwilliam and Bulshoek Dams, are situated along the mid‐course of the river. The Olifants River is central to the presence and success of an extensive agricultural industry in the Olifants River basin. This mainly comprises citrus orchards, vineyards and potatoes, which require year round water. The river (and dams) also supplies water to several major towns along its length, namely Citrusdal, Clanwilliam, Vanrhynsdorp, Vredendal and Lutzville, and serves as an important focal point for water‐related recreational activities and tourism in the West Coast District.
    [Show full text]
  • Conservation Biology of Endangered Freshwater Fishes – Linking Conservation of Endangered Freshwater Fishes with River Conservation, Focussing on the Cederberg
    CONSERVATION BIOLOGY OF ENDANGERED FRESHWATER FISHES – LINKING CONSERVATION OF ENDANGERED FRESHWATER FISHES WITH RIVER CONSERVATION, FOCUSSING ON THE CEDERBERG Report to the Water Research Commission Edited by IR Bills1 and ND Impson2 1South African Institute of Aquatic Biodiversity 2CapeNature WRC Report No. KV 305/12 ISBN 978-1-4312-0348-2 JANUARY 2013 OBTAINABLE FROM Water Research Commission Private Bag X03 Gezina, Pretoria, 0031 South Africa [email protected] or download from www.wrc.org.za The publication of this report emanates from a WRC project entitled Conservation biology of endangered freshwater fishes – Linking conservation of endangered freshwater fishes with river conservation, focusing on the Cederberg. (WRC Project No.K8/592) 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 ACKNOWLEDGEMENTS We thank the Water Research Commission for providing the funding for this work. Cape Nature and the South African Institute for Aquatic Biodiversity provided varied logistical support for most of the sub-projects. In particular Mrs. Sally Terry (SAIAB) helped with all aspects of coordination and curation of samples at SAIAB. Dr Olaf Weyl co-supervised Vusi Mthombeni’s MSc work and together with R. Bills provided additional funding for the catfish biology study. iii iv TABLE OF CONTENTS Page No 1 Introduction .………………………………………………………….…………….......1 Roger Bills and Dean Impson 2 Barnard’s rock catfish (Austroglanis barnardi).…………………….…………….5 Roger Bills 3 Clanwilliam roc catfish (Austroglanis gilli).………………………………………17 Roger Bills 4 Twee River redfin (Barbus erubescens) …………………………….……………30 Roger Bills 5 A study of the maintenance and culture requirements of Barbus erubescens, Austroglanis barnardi and A.
    [Show full text]
  • Freshwater Fish Species of the Oorlogskloof River, Northern Cape Province, South Africa
    P.P. Ramollo, M. SchumannOur aNaturend W.A.J. (201Pretorius2) 10: 8-1/ 6Our Nature (2012) 10: 8-16 Freshwater Fish Species of the Oorlogskloof River, Northern Cape Province, South Africa P.P. Ramollo1*, M. Schumann2 and W.A.J. Pretorius3 1Northern Cape Department of Environment & Nature Conservation (DENC) Private BagX6102, Kimberley, 8100, South Africa 2Northern Cape Department of Environment & NatureConservation (DENC), Oorlogskloof Nature Reserve P.Box142, Nieuwoudtville 8180, South Africa 3Northern Cape, Department of Environment & Nature Oorlogskloof Nature Reserve P. Box 142 Nieuwoudtville 8180,South Africa *Email: [email protected] Abstract The freshwater fish of Oorlogskloof River were sampled in March 2010. The study aimed to determine the distribution and relative abundance of freshwater fish in the Oorlogskloof River. A total of 4643individuals represented by five fish species belonging to two families were sampled. The Barbus anoplus was only sampled in the upper reaches of the Oorlogskloof River gorge while endangered Labeobarbus capensis appeared downstream in the Oorlogskloof River. Barbus serra dominated the fish species in the system. The invasion of Tilapia sparmanni in this system was confirmed during the survey andthe species appeared to be widespread throughout the system. At this stage it does not appear to be posing a serious threat to the endangered fish species. The Oorlogskloof River can be considered as a potential refuge site for the conservation of some endemic and threatened freshwater fishes of South Africa. Key words: Abundance, conservation, distribution, endemic, Oorlogskloof River Introduction The Oorlogskloof River plays a pertinent Reserve, is of unparallel importance in the role as a spawning and nursery site for Olifants-Doring system as a fish sanctuary endemic and endangered fish species.
    [Show full text]
  • Dictionary of South African Place Names
    DICTIONARY OF SOUTHERN AFRICAN PLACE NAMES P E Raper Head, Onomastic Research Centre, HSRC CONTENTS Preface Abbreviations ix Introduction 1. Standardization of place names 1.1 Background 1.2 International standardization 1.3 National standardization 1.3.1 The National Place Names Committee 1.3.2 Principles and guidelines 1.3.2.1 General suggestions 1.3.2.2 Spelling and form A Afrikaans place names B Dutch place names C English place names D Dual forms E Khoekhoen place names F Place names from African languages 2. Structure of place names 3. Meanings of place names 3.1 Conceptual, descriptive or lexical meaning 3.2 Grammatical meaning 3.3 Connotative or pragmatic meaning 4. Reference of place names 5. Syntax of place names Dictionary Place Names Bibliography PREFACE Onomastics, or the study of names, has of late been enjoying a greater measure of attention all over the world. Nearly fifty years ago the International Committee of Onomastic Sciences (ICOS) came into being. This body has held fifteen triennial international congresses to date, the most recent being in Leipzig in 1984. With its headquarters in Louvain, Belgium, it publishes a bibliographical and information periodical, Onoma, an indispensable aid to researchers. Since 1967 the United Nations Group of Experts on Geographical Names (UNGEGN) has provided for co-ordination and liaison between countries to further the standardization of geographical names. To date eleven working sessions and four international conferences have been held. In most countries of the world there are institutes and centres for onomastic research, official bodies for the national standardization of place names, and names societies.
    [Show full text]
  • Tracking Movement of Large Fish Species Through a River System: Methods Development
    TRACKING MOVEMENT OF LARGE FISH SPECIES THROUGH A RIVER SYSTEM: METHODS DEVELOPMENT BR Paxton WRC Report No. KV 157/04 Water Research Commission TRACKING MOVEMENT OF LARGE FISH SPECIES THROUGH A RIVER SYSTEM: METHODS DEVELOPMENT Report to the Water Research Commission by Bruce R Paxton Zoology Department University of Cape Town Private Bag Rondebosch 7700 KVNo: 157/04 ISBN NO.: 1-77005-238-0 DECEMBER 2004 Disclaimer This report emanates from a project financed by the Water Research Commission (WRC) and is approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the WRC or the members of the project steering committee, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. Primers: 012 804 1164 EXECUTIVE SUMMARY Planned water-resource developments on the Doring River, a major tributary of the Olifants River, Western Cape, have raised concerns that declines in populations of threatened endemic freshwater fish may be accelerated. By reducing the amount of running water habitat through regulation or inundation, or preventing fish from reaching critical habitat units such as spawning or nursery areas, dams may compromise the ability of fish populations to grow, survive and reproduce. Of the latter two impacts, the Department of Water Affairs and Forestry (DWAF) has identified barrier effects of proposed dams on the Doring River as the most serious concern. Anecdotal evidence suggests that, during the earlier half of the 20th century, endemic fish populations formed large breeding aggregations in the Olifants River. No information exists on the extent to which these populations depended on extensive migrations between the two rivers, or up and down either, or what advantage migration may confer in terms of reproductive success or recruitment.
    [Show full text]
  • List of Rivers of South Africa
    Sl. No River Drainage Basin Province and location Source location (town / mountains) Tributary of (river) Dam in river Mouth / junction at location (town) Mouth / junction coordinates (Amanzimtoti River, (Manzimtoti River) (Toti River) U7 KwaZulu-Natal, Amanzimtoti northwest of Adams Mission Amanzimtoti, Indian Ocean 30°3′S 30°52′E / 30.050°S 30.867°E / -30.050; 30.867 (Amanzimtoti mouth 1 Tshwane River, then Pienaars 25°14′24″S 28°08′36″E / 25.24000°S 28.14333°E / -25.24000; 28.14333 (Apies-Tshwane 2 Apies River A2 Gauteng, Tshwane, Pretoria South of Pretoria Bon Accord Dam Makapanstad River and Limpopo River junction) -Liebenbergsvlei River, then 28°13′27″S 28°21′58″E / 28.22417°S 28.36611°E / -28.22417; 28.36611 (As 3 As River (or Axel River) C8 Free State Southeast of Bethlehem Sol Plaatjie Dam Wilge River Liebenbergsvlei junction) -27°04′46″S 31°02′19″E / 27.07944°S 31.03861°E / -27.07944; 31.03861 (Assegaai 4 Assegaai River W5 Mpumalanga North of Wakkerstroom Mkondo River Heyshope Dam Swaziland border Mkondo junction) 27°40′15″S 25°37′40″E / 27.67083°S 25.62778°E / -27.67083; 25.62778 (Bamboesspruit 5 Bamboesspruit (or Bamboes Spruit) C2 North West South of Ottosdal Vaal River Bloemhof Dam mouth) 33°39′53″S 24°23′37″E / 33.66472°S 24.39361°E / -33.66472; 24.39361 (Baviaanskloof 6 Baviaanskloof River L8 Western and Eastern Cape North of Plettenberg Bay Kouga River River junction) Bell River D1 Eastern Cape Near Naudé's Neck Kraai River, then Orange River Near Moshesh's Ford 30°51′08″S 27°46′43″E / 30.85222°S
    [Show full text]
  • A Review of the Biology and Status of Cape Fold Ecoregion Freshwater Fishes
    Received: 11 October 2015 Revised: 7 September 2016 Accepted: 8 September 2016 DOI 10.1002/aqc.2730 REVIEW ARTICLE A review of the biology and status of Cape Fold Ecoregion freshwater fishes Bruce R. Ellender1,2 | Ryan J. Wasserman1,2 | Albert Chakona1 | Paul H. Skelton1 | Olaf L. F. Weyl1,2 1 South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown, South Abstract Africa 1. Mediterranean climate regions are globally recognized as hotspots of endemism in fishes; 2 Centre for Invasion Biology, South African however, these unique assemblages are increasingly threatened by human mediated impacts Institute for Aquatic Biodiversity (SAIAB), including water abstraction, damming and non‐native species introductions. Grahamstown, South Africa 2. The Cape Fold aquatic ecoregion (CFR) of South Africa supports an assemblage of range‐restricted Correspondence B. R. Ellender, South African Institute for endemic freshwater fishes, the majorityofwhich areconservation prioritiesbecause theyareunder Aquatic Biodiversity (SAIAB), Private Bag severe threat of extinction. Effective conservation and management are constrained by the lack of 1015, Grahamstown, 6140, South Africa. readilyavailable information onthisimperilledgroupof fishes because research efforts overthe last Email: [email protected] century have been temporally disjointed and relatively uncoordinated. 3. This review provides an exhaustive appraisal of published literature on the taxonomy, biogeog- raphy, life history, ecology and physiology of freshwater fishes in the CFR, and the human impacts that affect them. Its aim is to direct future research needs for effective management and conservation of this imperilled group. 4. Only 103 peer‐reviewed articles on CFR fishes were recorded and the majority of available research is on taxonomy and biogeography (40.8%), followed by ecological investigations (22.3%), conservation (19.4%) and human impacts (17.5%).
    [Show full text]
  • SUPPLEMENTAL APPENDIX 1. Sarcocornia Specimens Examined
    SUPPLEMENTAL APPENDIX 1. Sarcocornia specimens examined. Sarcocornia capensis. SOUTH AFRICA. Western Cape: Bredasdorp, Mierekraal, 23 Mar 2003, Mucina 7453/1 (NBG). Cape Town, flats between Noord Hoek and Kommetjie, Mar 1918, Pillans 3222 (BOL). Cape Town, Kenilworth Race Course, 23 Nov 1964, Esterhuyzen 30850 (BOL). Cape Town, Milnerton, 27 Feb 1924, Moss 11621 (J, PRE), 20 Apr 2006, Steffen & Köcke 200406/07 (MJG, NBG). Cape Town, Muizenberg Vlei, 14 Nov 1897, Wolley Dod 3590 (BOL). Cape Town, Noordhoek, Feb 1918, Moss 3133 (J), 10 Mar 1918, Pillans 3144 (J). Cape Town, Paardeneiland, 05 Dec 1962, Tölken 165b (BOL), 06 Dec 1962, Tölken 165 (PRE, NBG), 10 Apr 1964 Tölken 551 (NBG, PRE). Cape Town, Raapenburg Vlei, 05 Jun 1897, Wolley Dod 2690 (BOL). Cape Town, Riet Vlei, 31 Mar 1918, Pillans 3229 (BOL). Cape Town, Ronde Vlei, Jan 1920, Andreae 237 (NBG). Cape Town, Rugby, 28 May 1963, Tölken 326 (BOL, NBG, PRE). Cape Town, Wynberg, Isoetes Vlei, 03 Apr 1963, Tölken 304 (BOL, NBG, PRE). Cape Town, Wynberg, SE of Ottery Estates, 05 May 1963, Tölken 323 (NBG, PRE). Darling, 08 Dec 2000, Mucina 081200/2 (MJG, NBG), 14 Apr 2006, Steffen & Mucina 140406/03 (MJG). Elim, E of Brakpan, 16 Mar 2001, Mucina 6916/1 (NBG). Elim, road Struisbaai–Bredasdorp, 26 Nov 2000, Janssen & Mucina JJ261100/12 (NBG). Franskraal, Uilenkraals estuary, 05 Mar 1964, Tölken 500 (PRE), 05 Mar 1964, Tölken 503 (NBG), 17 Mar 1987, O’Callaghan 1523 (NBG), 03 Nov 1987, O’Callaghan 3113 (NBG), 31 Dec 1999, Mucina 6797/3 (NBG), 26 Nov 2000, Janssen & Mucina JJ261100/4 (MJG), 1 Sep 2001, Mucina 7202/2 (MJG, NBG), Mucina 7200/5 (MJG, NBG), 05 Apr 2006 Steffen & Mucina 050406/15 (MJG, NBG).
    [Show full text]