Project Report N Ber 72 1992 Annual Report Committee of Management
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An Analysis of Primary and Secondary Production in Lake Kariba in a Changing Climate
AN ANALYSIS OF PRIMARY AND SECONDARY PRODUCTION IN LAKE KARIBA IN A CHANGING CLIMATE MZIME R. NDEBELE-MURISA A thesis submitted in partial fulfillment of the requirements for the degree of Doctor Philosophiae in the Department of Biodiversity and Conservation Biology, University of the Western Cape Supervisor: Prof. Charles Musil Co-Supervisor: Prof. Lincoln Raitt May 2011 An analysis of primary and secondary production in Lake Kariba in a changing climate Mzime Regina Ndebele-Murisa KEYWORDS Climate warming Limnology Primary production Phytoplankton Zooplankton Kapenta production Lake Kariba i Abstract Title: An analysis of primary and secondary production in Lake Kariba in a changing climate M.R. Ndebele-Murisa PhD, Biodiversity and Conservation Biology Department, University of the Western Cape Analysis of temperature, rainfall and evaporation records over a 44-year period spanning the years 1964 to 2008 indicates changes in the climate around Lake Kariba. Mean annual temperatures have increased by approximately 1.5oC, and pan evaporation rates by about 25%, with rainfall having declined by an average of 27.1 mm since 1964 at an average rate of 6.3 mm per decade. At the same time, lake water temperatures, evaporation rates, and water loss from the lake have increased, which have adversely affected lake water levels, nutrient and thermal dynamics. The most prominent influence of the changing climate on Lake Kariba has been a reduction in the lake water levels, averaging 9.5 m over the past two decades. These are associated with increased warming, reduced rainfall and diminished water and therefore nutrient inflow into the lake. The warmer climate has increased temperatures in the upper layers of lake water, the epilimnion, by an overall average of 1.9°C between 1965 and 2009. -
Shared Resource Management on the Zambezi/Chobe Systems
Shared Resource Management on the Zambezi/Chobe Systems in Northeast Namibia: Current Practices and Future Opportunities River fisheries study: February 2002–February 2003 Tor F. Næsje*, Rita Strand*, Clinton Hay**, John Purvis***, Eva B. Thorstad*, James Abbott****, Nande Nickanor** * Norwegian Institute for Nature Research, Tungasletta 2, NO-7485 Trondheim, Norway ** Ministry of Fisheries and Marine Resources, Private Bag 2116, Mariental, Namibia *** Ministry of Fisheries and Marine Resources, Private Bag 13355, Windhoek, Namibia/Namibia Nature Foundation, Post Office Box 245, Windhoek, Namibia. **** Department of Geography, University of Western Ontario, London, Ontario N6A 5C2, Canada Table of contents 1. INTRODUCTION ............................................................................................................3 1.1 Background.......................................................................................................3 1.2 Objectives of the river survey ............................................................................3 1.3 Objectives of this report ....................................................................................4 1.4 Linkages to other research components.............................................................4 2. METHODS ....................................................................................................................4 2.1 Subsistence fisheries .........................................................................................6 2.2 Access data storage...........................................................................................6 -
Jlb Smith Institute of Ichthyology
ISSN 0075-2088 J.L.B. SMITH INSTITUTE OF ICHTHYOLOGY GRAHAMSTOWN, SOUTH AFRICA SPECIAL PUBLICATION No. 56 SCIENTIFIC AND COMMON NAMES OF SOUTHERN AFRICAN FRESHWATER FISHES by Paul H. Skelton November 1993 SERIAL PUBLICATIONS o f THE J.L.B. SMITH INSTITUTE OF ICHTHYOLOGY The Institute publishes original research on the systematics, zoogeography, ecology, biology and conservation of fishes. Manuscripts on ancillary subjects (aquaculture, fishery biology, historical ichthyology and archaeology pertaining to fishes) will be considered subject to the availability of publication funds. Two series are produced at irregular intervals: the Special Publication series and the Ichthyological Bulletin series. Acceptance of manuscripts for publication is subject to the approval of reviewers from outside the Institute. Priority is given to papers by staff of the Institute, but manuscripts from outside the Institute will be considered if they are pertinent to the work of the Institute. Colour illustrations can be printed at the expense of the author. Publications of the Institute are available by subscription or in exchange for publi cations of other institutions. Lists of the Institute’s publications are available from the Publications Secretary at the address below. INSTRUCTIONS TO AUTHORS Manuscripts shorter than 30 pages will generally be published in the Special Publications series; longer papers will be considered for the Ichthyological Bulletin series. Please follow the layout and format of a recent Bulletin or Special Publication. Manuscripts must be submitted in duplicate to the Editor, J.L.B. Smith Institute of Ichthyology, Private Bag 1015, Grahamstown 6140, South Africa. The typescript must be double-spaced throughout with 25 mm margins all round. -
Whose Commons? Fishermen, Developmentalists and Conservationists on Lake Malawi Anne Ferguson Department of Anthropology Michiga
WORKSHOP IN POLITICAL THEORY AND POLICY ANALYSIS 513 NORTH PARK INDIANA UNIVERSITY BLO DMINGTON, IN 47408-3895 U S > Whose Commons? Fishermen, Developmentalists and Conservationists on Lake Malawi by i Anne Ferguson Department of Anthropology Michigan State University Bill Derman Department of Anthropology . Michigan State University , Richard Mkandawire j Department of Rural Development Bunda College of Agriculture, University of Malawi September 15, 1990 Paper prepared for the First International Association for the Study of Common Property: "Designing Sustainability on the Commons", Duke University: September 3-7-30, 1990 Draft. Please do not cite without agreement of | the authors I. Introduction Fish from Lake Malawi are a major source of animal protein for large numbers of people in Malawi and Mozambique, two of Sub- Saharan Africa's poorest countries. It is estimated that fish, supplied by a dynamic and diverse small-scale African fishing industry, contribute seventy percent of animal protein consumed by Malawians per year (Alimoso et al. 1990). In this paper we briefly discuss the scale and social organization of fishing and what we have learned about use rights in the southern and central portions of Lake Malawi. We propose that the open access fishing which exists in these areas has not significantly harmed fish stocks to date, although problems may be emerging. An equal, if not greater, threatjto the fish, fishing and the ecology of Lake Malawi than that posed by open access small-scale fishing originates from developmentalists— internal and external actors advocating large-scale, capital intensive exploitation of the fish and the development of an international tourism industry. -
Final Report
FINAL REPORT EXTERNAL EVALUATION of the Research, Monitoring and Development Project of Fisheries in the Cahora Bassa Reservoir – Phase II 2007-2010 Republic of Mozambique Ministry of Fisheries JUNE , 2010 Final Report: External Evaluation of the Research, Monitoring and Development Project of Fisheries in the Cahora Bassa Reservoir – Phase II EXECUTIVE SUMMARY I. INTRODUCTION The Research, Monitoring and Development Project of the Fisheries in the Cahora Bassa Reservoir – Phase II (a.k.a., Phase II or Project in this Evaluation) is a collaborative effort between ICEIDA and the Ministério das Pescas (MP, or Ministry of Fisheries) of the Government of Mozambique (GoM). Within MP, the Instituto Nacional de Investigação Pesqueira (IIP) is the implementing institution and is responsible for promoting scientific management of fisheries resources in Mozambican waters. ICEIDA commissioned an independent Evaluation of the Phase II Project in June 2010. This report presents the findings of the Evaluation Team. The Phase II Project was formulated in 2006 and implemented in 2007 as a complementary continuation of the very successful Phase I, conducted 2003–2005 that principally concerned the kapenta fishery and capacity development at Cahora Bassa. The objective of Phase II was stated as: The Project is a research-based project aimed at producing management options for the three fisheries, the semi-industrial, the Artisanal and the sport fisheries on the Cahora Bassa reservoir with the objective of minimizing fisher conflict and at the same time optimizing the harvest from Cahora Bassa. The specific objectives were defined in the Project Document (PD) as: 1. Strengthening the infrastructure and research facilities of the IIP delegation in Songo; 2. -
IN Lake KARIBA ~As Development Ad Ndon)
• View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Aquatic Commons THE A leA JOU L OF (Afr. J Trop. Hydrobiol. Fish) Yo. 1 1994 ASPECTS OF THE BIOLOGY OF THE lAKE TANGANYIKA SARDINE, LIMNOTHRISSA n illustrated key to the flinji. (Mimeographed MIODON (BOULENGER), IN lAKE KARIBA ~as Development Ad ndon). R. HUDDART ision des Synodontis Kariba Research Unit, Private Bag 24 CX, CHOMA, Zambia. e Royal de I'Afrique 'en, Belgium. 500p. Present address:- ~). The ecology of the 4, Ingleside Grove, LONDON, S.B.3., U.K. is (Pisces; Siluoidea) Nigeria. (Unpublished ABSTRACT o the University of Juveniles of U11lnothrissa 11liodon (Boulenger) were introduced into the man-made Lake Kariba in ngland). 1967-1968. Thirty months of night-fishing for this species from Sinazongwe, near the centre of the Kariba North bank. from 1971 to 1974 are described. Biological studies were carried out on samples of the catch during most of these months. Limnological studies were carried out over a period of four months in 1973. Li11lnothrissa is breeding successfully and its number have greatly increased. [t has reached an equilibrium level of population size at a [ower density than that of Lake Tanganyika sardines, but nevertheless is an important factor in the ecology of Lake Kariba. The growth rate, size at maturity and maximum size are all less than those of Lake Tanganyika Li11lnothrissa. A marked disruption in the orderly progression of length frequency modes occurs in September, for which the present body of evidence cannot supply an explanation. INTRODUCTION light-attracted sardines in Lake Kariba were The absence of a specialised, plankti tested in 1970 and early 1971. -
Thezambiazimbabwesadc Fisheriesprojectonlakekariba: Reportfroma Studytnp
279 TheZambiaZimbabweSADC FisheriesProjectonLakeKariba: Reportfroma studytnp •TrygveHesthagen OddTerjeSandlund Tor.FredrikNæsje TheZambia-ZimbabweSADC FisheriesProjectonLakeKariba: Reportfrom a studytrip Trygve Hesthagen Odd Terje Sandlund Tor FredrikNæsje NORSKINSTITI= FORNATURFORSKNNG O Norwegian institute for nature research (NINA) 2010 http://www.nina.no Please contact NINA, NO-7485 TRONDHEIM, NORWAY for reproduction of tables, figures and other illustrations in this report. nina oppdragsmelding279 Hesthagen,T., Sandlund, O.T. & Næsje, T.F. 1994. NINAs publikasjoner The Zambia-Zimbabwe SADC fisheries project on Lake Kariba: Report from a study trip. NINA NINA utgirfem ulikefaste publikasjoner: Oppdragsmelding279:1 17. NINA Forskningsrapport Her publiseresresultater av NINAs eget forskning- sarbeid, i den hensiktå spre forskningsresultaterfra institusjonen til et større publikum. Forsknings- rapporter utgis som et alternativ til internasjonal Trondheimapril 1994 publisering, der tidsaspekt, materialets art, målgruppem.m. gjør dette nødvendig. ISSN 0802-4103 ISBN 82-426-0471-1 NINA Utredning Serien omfatter problemoversikter,kartlegging av kunnskapsnivået innen et emne, litteraturstudier, sammenstillingav andres materiale og annet som ikke primært er et resultat av NINAs egen Rettighetshaver0: forskningsaktivitet. NINA Norskinstituttfornaturforskning NINA Oppdragsmelding Publikasjonenkansiteresfritt med kildeangivelse Dette er det minimum av rapporteringsomNINA gir til oppdragsgiver etter fullført forsknings- eller utredningsprosjekt.Opplageter -
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CICHLIFORMES: Cichlidae (part 5) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 10.0 - 11 May 2021 Order CICHLIFORMES (part 5 of 8) Family CICHLIDAE Cichlids (part 5 of 7) Subfamily Pseudocrenilabrinae African Cichlids (Palaeoplex through Yssichromis) Palaeoplex Schedel, Kupriyanov, Katongo & Schliewen 2020 palaeoplex, a key concept in geoecodynamics representing the total genomic variation of a given species in a given landscape, the analysis of which theoretically allows for the reconstruction of that species’ history; since the distribution of P. palimpsest is tied to an ancient landscape (upper Congo River drainage, Zambia), the name refers to its potential to elucidate the complex landscape evolution of that region via its palaeoplex Palaeoplex palimpsest Schedel, Kupriyanov, Katongo & Schliewen 2020 named for how its palaeoplex (see genus) is like a palimpsest (a parchment manuscript page, common in medieval times that has been overwritten after layers of old handwritten letters had been scraped off, in which the old letters are often still visible), revealing how changes in its landscape and/or ecological conditions affected gene flow and left genetic signatures by overwriting the genome several times, whereas remnants of more ancient genomic signatures still persist in the background; this has led to contrasting hypotheses regarding this cichlid’s phylogenetic position Pallidochromis Turner 1994 pallidus, pale, referring to pale coloration of all specimens observed at the time; chromis, a name -
A Histology-Based Health Assessment of Selected Fish Species
A HISTOLOGY-BASED HEALTH ASSESSMENT OF SELECTED FISH SPECIES FROM TWO RIVERS IN THE KRUGER NATIONAL PARK BY WARREN CLIFFORD SMITH DISSERTATION SUBMITTED IN FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE MAGISTER SCIENTIAE IN AQUATIC HEALTH IN THE FACULTY OF SCIENCE AT THE UNIVERSITY OF JOHANNESBURG SUPERVISOR: DR. G.M. WAGENAAR CO-SUPERVISOR: PROF. N.J. SMIT MAY 2012 Contents Acknowledgements _______________________________________________________ 6 Abstract ________________________________________________________________ 8 List of abbreviations _____________________________________________________ 11 List of figures ___________________________________________________________ 14 List of Tables ___________________________________________________________ 17 Chapter 1: General Introduction ____________________________________________ 19 1.1 Introduction _______________________________________________________ 19 1.2 Study motivation ___________________________________________________ 19 1.3 Hypotheses ________________________________________________________ 21 1.4 Aim of the study ____________________________________________________ 21 1.5 Objectives _________________________________________________________ 21 1.6 Dissertation outline _________________________________________________ 21 Chapter 2: Literature Review ______________________________________________ 23 2.1 Introduction _______________________________________________________ 23 2.2 Study Sites ________________________________________________________ 23 2.2.1 Olifants River (OR) -
Source Book for the Inland Fishery Resources of Africa Vol. 1
kdJU iS. 'k'.d J5ortIjent i&fjobestfa Joint Fisheries Research Organisation ANNUAL REPORT No. 10 i960 Price: 7s. 6d. yitaA A v i £ 9- O 1962 PRINTED BY THE GOVERNMENT PRINTER tn.75—1185 1-02 L U S A K A luirJuy&lg, Sfzt/?/ CONTENTS St a f f a n d C o m m it t e e s , 1960 .................................................................................. iii I ntroduction ... ... ... ... ... ... ... ... ... ... 1 A c t iv it ie s o f t h e O rganisation in N o r t h e r n R h o d e s ia : A. Report for the year ended 31st December, 1960 ... ... ... ... 3 B. Research Results, Lake Tanganyika: I. Hydrology and Plankton ... ... ... ... ... ... ... 7 II. The sardine (Ndagaa) fishery on southern Lake Tanganyika, with notes on the introduction of the Chirimila net ... ... ... 9 III. The sardines Limnothrissa miodon (Blgr) and Stolothrissa tanganicae Regan ... ... ... ... ... ... ... ... ... 18 IV. Shoaling and vertical migration behaviour of the sardines, as recorded by echo-sounding ... ... ... ... ... ... ... ... 20 V. Diurnal and vertical migrations of fish, and effect of predation ... 23 VI. The gill-net fishery for the Nile perch Lates mariae ... ... ... 27 VII. Observations on the growth of juvenile Lates (Nile perch) species ... 30 C. Research on Lake Mweru ... ... ... ... ... ... ... 31 D. Research on Kariba ... ... ... ... ... ... ... ... 32 A c t iv it ie s o f t h e O rganisation in N y a s a l a n d : A. Report for the year ended 31st December, 1960 ... ... ... ... 41 B. Research Results, Lake Nyasa: I. H ydrology............................................................................................... 41 II. The long-line fishery ........................................................................ 48 III. Further notes on gill-net experiments on Labeo mesops (Gunther) .. -
May 2021 Kirk Owen Winemiller Department of Ecology And
1 CURRICULUM VITAE– May 2021 Kirk Owen Winemiller Department of Ecology and Conservation Biology Texas A&M University 2258 TAMU College Station, TX 77843-2258 Telephone: (979) 845-6295 Email: [email protected] Webpage: https://aquaticecology.tamu.edu Professional Positions Dates Interim Department Head, Department of Ecology and Conservation Jan. 2020-present Biology, Texas A&M University Interim Department Head, Dept. Wildlife and Fisheries Sciences, Oct.-Dec. 2019 Texas A&M University University Distinguished Professor, Texas A&M University April 2019-present Regents Professor, Texas AgriLife Research Jan. 2009-present Associate Department Head for Undergraduate Programs, June 2011-Aug. 2012 Department of Wildlife & Fisheries Sciences, Texas A&M University Associate Chair, Interdisciplinary Research Program in Ecology and Jan. 2008-Dec. 2009 Evolutionary Biology, Texas A&M University Founding Chair, Interdisciplinary Research Program in Ecology and Oct. 2004-Dec. 2007 Evolutionary Biology, Texas A&M University Professor, Dept. Wildlife & Fisheries Sciences, Texas A&M Univ. Sept. 2002-present Associate Professor, Dept. Wildlife & Fisheries Sciences, Texas A&M U. Sept. 1996-Aug. 2002 Fulbright Visiting Graduate Faculty, University of the Western Llanos, May-Sept. 1997 Venezuela Visiting Graduate Faculty, University of Oklahoma, Norman July 1994-1995 Assistant Professor, Dept. Wildlife & Fisheries, Texas A&M University May 1992-Aug. 1996 Research Associate- Oak Ridge National Lab, Environmental Sciences 1990-1992 Division, Oak Ridge, TN & Graduate Program in Ecology, University of Tennessee, Knoxville Lecturer- Department of Zoology, University of Texas, Austin 1987-88, 1990 Fulbright Research Associate- Zambia Fisheries Department 1989 Curator of Fishes- TNHC, Texas Memorial Museum, Austin 1988-89 Graduate Assistant Instructor- University of Texas, Austin 1981-83, 1986-87 2 Education Ph.D. -
RUNNING OUR CITIES to FILL the FOOD GAP by Leonie Joubert with the Consuming Urban Poverty Team Photographs by Samantha Reinders, with Masixole Feni
TOMATOES & TAXI RANKS RUNNING OUR CITIES TO FILL THE FOOD GAP BY LEONIE JOUBERT WITH THE CONSUMING URBAN POVERTY TEAM PHOTOGRAPHS BY SAMANTHA REINDERS, WITH MASIXOLE FENI i TOMATOES & TAXI RANKS ii 1 TOMATOES & TAXI RANKS TOMATOES & TAXI RANKS RUNNING OUR CITIES TO FILL THE FOOD GAP First published in 2018 by Authors the African Centre for Cities, Leonie Joubert, with Jane Battersby University of Cape Town and Vanessa Watson All rights reserved TOMATOES & ISBN 978-0-620-80698-5 Contributing authors Paul Opiyo, Percy Toriro, Fadzai African Centre for Cities Muramba, Robyn Bowden, Robyn School of Architecture, Planning and Park-Ross, Alison Pulker, Jo Hunter Geomatics Adams and Fridah Siyanga-Tembo TAXI RANKS Room 2.11, Level 2, Environmental and Geographical Sciences Building Photographs Upper Campus, University of Cape by Samantha Reinders, all except for Town, Rondebosch, 7701 those by Masixole Feni (pages 4, 16, 81- South Africa 98, 134, 139- bottom image, 142- bottom Tel: +27 650 5903 centre image, 157), Jane Battersby www.africancentreforcities.net (pages 58, 121- top right image), RUNNING OUR CITIES Fadzai Muramba (page 53- top left, top This book is based on research right and bottom left image) and undertaken by the Consuming Urban Robyn Park-Ross (pages 92, 130-131) TO FILL THE FOOD GAP Poverty project (formally named Governing Food Systems to Alleviate Production Coordination Poverty in Secondary Cities in Africa) Robyn Park-Ross and Alma Viviers based at the African Centre for Cities, University of Cape Town. This project Design is funded under the ESRC-DFID Joint Idea in a Forest Fund for Poverty Alleviation Research (Poverty in Urban Spaces theme).