Mweru Wa Ntipa
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Vascular Plant Survey of Vwaza Marsh Wildlife Reserve, Malawi
YIKA-VWAZA TRUST RESEARCH STUDY REPORT N (2017/18) Vascular Plant Survey of Vwaza Marsh Wildlife Reserve, Malawi By Sopani Sichinga ([email protected]) September , 2019 ABSTRACT In 2018 – 19, a survey on vascular plants was conducted in Vwaza Marsh Wildlife Reserve. The reserve is located in the north-western Malawi, covering an area of about 986 km2. Based on this survey, a total of 461 species from 76 families were recorded (i.e. 454 Angiosperms and 7 Pteridophyta). Of the total species recorded, 19 are exotics (of which 4 are reported to be invasive) while 1 species is considered threatened. The most dominant families were Fabaceae (80 species representing 17. 4%), Poaceae (53 species representing 11.5%), Rubiaceae (27 species representing 5.9 %), and Euphorbiaceae (24 species representing 5.2%). The annotated checklist includes scientific names, habit, habitat types and IUCN Red List status and is presented in section 5. i ACKNOLEDGEMENTS First and foremost, let me thank the Nyika–Vwaza Trust (UK) for funding this work. Without their financial support, this work would have not been materialized. The Department of National Parks and Wildlife (DNPW) Malawi through its Regional Office (N) is also thanked for the logistical support and accommodation throughout the entire study. Special thanks are due to my supervisor - Mr. George Zwide Nxumayo for his invaluable guidance. Mr. Thom McShane should also be thanked in a special way for sharing me some information, and sending me some documents about Vwaza which have contributed a lot to the success of this work. I extend my sincere thanks to the Vwaza Research Unit team for their assistance, especially during the field work. -
The Open Access Israeli Journal of Aquaculture – Bamidgeh
The Open Access Israeli Journal of Aquaculture – Bamidgeh As from January 2010 The Israeli Journal of Aquaculture - Bamidgeh (IJA) will be published exclusively as an on-line Open Access (OA) quarterly accessible by all AquacultureHub (http://www.aquaculturehub.org) members and registered individuals and institutions. Please visit our website (http://siamb.org.il) for free registration form, further information and instructions. This transformation from a subscription printed version to an on-line OA journal, aims at supporting the concept that scientific peer-reviewed publications should be made available to all, including those with limited resources. The OA IJA does not enforce author or subscription fees and will endeavor to obtain alternative sources of income to support this policy for as long as possible. Editor-in-Chief Published under auspices of Dan Mires The Society of Israeli Aquaculture and Marine Biotechnology (SIAMB), Editorial Board University of Hawaii at Manoa Library Sheenan Harpaz Agricultural Research Organization and Beit Dagan, Israel University of Hawaii Aquaculture Zvi Yaron Dept. of Zoology Program in association with Tel Aviv University AquacultureHub Tel Aviv, Israel http://www.aquaculturehub.org Angelo Colorni National Center for Mariculture, IOLR Eilat, Israel Rina Chakrabarti Aqua Research Lab Dept. of Zoology University of Delhi Ingrid Lupatsch Swansea University Singleton Park, Swansea, UK Jaap van Rijn The Hebrew University Faculty of Agriculture Israel Spencer Malecha Dept. of Human Nutrition, Food and Animal Sciences University of Hawaii Daniel Golani The Hebrew University of Jerusalem Jerusalem, Israel Emilio Tibaldi Udine University Udine, Italy ISSN 0792 - 156X Israeli Journal of Aquaculture - BAMIGDEH. Copy Editor Ellen Rosenberg PUBLISHER: Israeli Journal of Aquaculture - BAMIGDEH - Kibbutz Ein Hamifratz, Mobile Post 25210, ISRAEL Phone: + 972 52 3965809 http://siamb.org.il The Israeli Journal of Aquaculture – Bamidgeh 58(2), 2006, 137-142. -
A Review of On-Farm Feed Management Practices for North African Catfish (Clarias Gariepinus) in Sub-Saharan Africa
463 A review of on-farm feed management practices for North African catfish (Clarias gariepinus) in sub-Saharan Africa Thomas Hecht1 Department of Ichthyology and Fisheries Science Rhodes University, Grahamstown South Africa Hecht, T. 2013. A review of on-farm feed management practices for North African catfish (Clarias gariepinus) in sub-Saharan Africa. In M.R. Hasan and M.B. New, eds. On-farm feeding and feed management in aquaculture. FAO Fisheries and Aquaculture Technical Paper No. 583. Rome, FAO. pp. 463–479. ABSTRACT This review considers feed management practices for North African catfish (Clarias gariepinus) in sub-Saharan Africa. Clariid catfish production in the subcontinent is increasing exponentially, particularly in Uganda. Semi-intensive pond culture is still the most prevalent production system, while intensive tank culture is becoming more popular in peri-urban areas in Nigeria. Total production in these two countries now exceeds 178 000 tonnes annually. Catfish are now commonly spawned and their larvae reared in hatcheries for ten to 14 days, after which they are reared in nursery ponds or in tanks. Extensive rearing of larvae, after yolk sac absorption, in ponds is now less often practiced than in the past. Where it is still practiced, successful larval rearing and satisfactory survival rates depend mainly on adequate fertilization schedules. Feed management practices in hatcheries are closely matched with the physiological and endocrinological ontogeny of the fish. For optimal survival and growth, live food (mainly Artemia) is required for the first five days after the start of exogenous feeding, after which the fish can be weaned onto a dry starter feed. -
The History of Lake Mweru Wa Ntipa National Park
Journal of Sustainable Development in Africa (Volume 15, No.5, 2013) ISSN: 1520-5509 Clarion University of Pennsylvania, Clarion, Pennsylvania HISTORICAL CHANGES IN THE ECOLOGY AND MANAGEMENT OF THE LAKE MWERU WA NTIPA WETLAND ECOSYSTEM OVER THE LAST 150 YEARS: A DRYING LAKE? 1Chansa Chomba; 2Ramadhani Senzota, 3Harry Chabwela and 4Vincent Nyirenda 1School of Agriculture and Natural Resources, Disaster Management Training Centre, Mulungushi University Kabwe, Zambia 2Department of Zoology and Wildlife Conservation, University of Dar es Salaam, Tanzania 3Department of Biological Sciences, University of Zambia, Lusaka, Zambia 4Zambia Wildlife Authority ABSTRACT This paper is the first comprehensive historical account of the changes in the ecology and management of Lake Mweru wa Ntipa wetland ecosystem over the period 1867-2013. It highlights major socio-ecological and management regime changes in the last 150 years. This period started when the Scottish explorer Dr. David Livingstone documented it in 1867, through the colonial era when Zambia was called Northern Rhodesia to the present time (2013). In the 1860s there was a red locust out break and the area was as a consequence of this outbreak placed under the International Red Locust Control Service until 1956 when it was declared a Game Reserve by the Government of Northern Rhodesia, National Park in 1972 and in 2005 a Ramsar site and Important Bird Area. We also provide an account of the cyclic phases of wet and dry spells of the lake recorded between 1867 - 2013. In the 20th century in particular, the wet and dry spells created an idea habitat for the locust breeding which attracted in the first instance, the attention of the colonial government and the International Red Locust Control Service. -
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. -
Clarias Gariepinus
Article — Artikel Provisional clinical chemistry parameters in the African Sharptooth catfish (Clarias gariepinus) J G Myburgha*, C J Bothaa, D G Booyseb and F Reyersc reported in fish in other parts of the ABSTRACT world2,18. Controlled laboratory exposure Pollution affects aquatic systems worldwide and there is an urgent need for efficient of Sharptooth catfish to copper concen- monitoring. Fish are generally sensitive to their environment and are thus considered to trations that were measured in the be valuable bioindicator species. The African Sharptooth catfish (Clarias gariepinus)is Olifants River, Kruger National Park, sig- particularly important in this respect because of its very wide distribution. In order to use nificantly altered their blood chemistry C. gariepinus as a bioindicator species its baseline clinical chemistry must be defined. parameters19. Existing data are scarce, and the objective of this work was therefore to establish clinical Given its wide distribution, the African chemistry parameters for Blood was collected from male and female catfish C. gariepinus. Sharptooth catfish could be a suitable and a number of clinical chemistry parameters were determined. Plasma protein values, bioindicator of pollution in a variety of but particularly those of plasma albumin, were found to be very low,approximately half the value for dogs, but similar to the values in Channel catfish (Ictalurus punctatus). Plasma urea freshwater aquatic ecosystems. However, values in Sharptooth catfish were found to be much lower than in dogs, but only marginally to be able to detect molecular and cellular lower than in Channel catfish. Plasma creatinine in Sharptooth catfish, however,was only a level changes in response to pollutants, quarter of that of dogs and one third of that found in Channel catfish. -
Survey of Study for the Borutho MTS NDP Project
Specialist report: Borutho project Basic Assessment report: Survey of study for the Borutho MTS NDP project. Specialist consultant: Dr Wynand Vlok (Pr. Sci. Nat. – 400109/95) 40 Juno Avenue Sterpark, Polokwane, 0699 082 200 5312 Fax: 0866 18 77 44 [email protected] 1 Specialist report: Borutho project Introduction This report is to discuss the biological survey (excluding the avifaunal component) conducted for the project. During the survey, two possible options were investigated for the substation and the proposed power lines between the substations (Figure 1). The project consists of the following components: • Investigate a corridor for the construction of a 10km Kingbird line from Borutho to the PPrus North Kingbird line. • Investigate a corridor for the construction of a 10.3km Kingbird line from Borutho to the Sandsloot line. • Investigate a corridor for the construction of a 32.6km Kingbird line from Borutho MTS to Potgietersrus substation Project locality The proposed power line will be constructed in the area to the north of Mokopane (Limpopo Province) (Figure 1 and 2). Addendum 1 is a summary of impacts, mitigation and management action suggested. Addendum 2 is a summary of possible mammals in the area, with the probability of encountering them on a permanent basis (i.e. not moving through) on the study site. Addendum 3 is a list of the red data plant species found in the broader study area. 2 Specialist report: Borutho project Proposed Borutho sub Potgietersrus sub Figure 1: Approximate routes of the power lines and position for the substations for the proposed project. 3 Specialist report: Borutho project Figure 2: General aerial view of the study area. -
Clarias Gariepinus (Burchell, 1822)
Food and Agriculture Organization of the United Nations Fisheries and for a world without hunger Aquaculture Department Cultured Aquatic Species Information Programme Clarias gariepinus (Burchell, 1822) I. Identity V. Status And Trends a. Biological Features VI. Main Issues b. Images Gallery a. Responsible Aquaculture Practices II. Profile VII. References a. Historical Background a. Related Links b. Main Producer Countries c. Habitat And Biology III. Production a. Production Cycle b. Production Systems c. Diseases And Control Measures IV. Statistics a. Production Statistics b. Market And Trade Identity Clarias gariepinus Burchell, 1822 [Clariidae] FAO Names: En - North African catfish, Fr - Poisson-chat nord-africain, Es - Pez-gato Biological features Body elongate. Head large, depressed and bony with small eyes. Narrow and angular occipital process; gill openings wide; air-breathing labyrinthic organ arising from gill arches; first gill arch with 24 to 110 gillrakers; cleithrum pointed, narrow with longitudinal ridges and with sharpness. Mouth terminal, large. Four pairs of barbels present. Long dorsal and anal fins; without dorsal fin spine and adipose fin. Anterior edge of pectoral spine serrated. Caudal fin rounded. Colour varies from sandy-yellow through gray to olive with dark greenish-brown markings, belly white. View FAO FishFinder Species fact sheet Images gallery FAO Fisheries and Aquaculture Department 2.5 kg Clarias gariepinus Nursing semi-intensive pond Clarias fry nursing tank Clarias intensive nursing (Photo: John Moehl) Clarias intensive farming Clarias harvest in Cameroon Profile Historical background African catfish are mentioned within traditional capture-based aquaculture (known as wheddos in Benin and Ghana and barochois in Mauritius) for centuries. Their culture in modern times follows a similar trend to that of tilapias: first domestication trials by the year 1950 and adoption of the North African catfish Clarias gariepinus as the most desirable catfish for aquaculture in the mid 1970s. -
Genetic Diversity in Cultured and Wild Population of Clarias Gariepinus
Aquacu nd ltu a r e s e J i o r u e r h n Awodiran et al., Fish Aqua J 2018, 9:2 s a i l F Fisheries and Aquaculture Journal DOI: 10.4172/2150-3508.1000247 ISSN: 2150-3508 Research Article Open Access Genetic Diversity in Cultured and Wild Population of Clarias gariepinus (Burchell, 1822) in Nigeria Using Random Amplified Polymorphic DNA (RAPD) and Microsatellite DNA Michael O Awodiran* and Olumide Afolabi Department of Zoology, Obafemi Awolowo University, Ile-Ife, Nigeria *Corresponding author: Michael O Awodiran, Department of Zoology, Obafemi Awolowo University, Ile-Ife, Nigeria, Tel: +234 806 208 8776; E-mail: [email protected] Received date: April 18, 2018; Accepted date: May 24, 2018; Published date: May 30, 2018 Copyright: © 2018 Awodiran MO, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract The population structure and genetic diversities of Clarias gariepinus from the cultured population at Chi Farm (Ajanla) and wild population at Asejire Reservoir (Asejire) were analysed using Random Amplified Polymorphic DNA (RAPD) and Microsatellite DNA markers. Using a CTAB protocol, genomic DNA was extracted from the caudal fins of 20 samples of live specimen collected from each population. Seven RAPD primers and seven pairs of microsatellite DNA primers were used to amplify different loci on the extracted genomic DNA by Polymerase Chain Reaction and the resultant DNA fragments were analysed on agarose gel. The RAPD primers amplified a total of 474 loci with 697 bands in all samples for the seven primers studied. -
Selected Chemical Parameters in the Blood and Metals in the Organs of the Nile Crocodile, Crocodylus Niloticus, in the Kruger National Park
Onderstepoort Journal of Veterinary Research, 67: 141-148 (2000) Selected chemical parameters in the blood and metals in the organs of the Nile crocodile, Crocodylus Niloticus, in the Kruger National Park D. SWANEPOEL1, J. BOOMKER2 and N.P.J. KRIEK2 ABSTRACT SWANEPOEL, D., BOOMKER, J, & KRIEK, N.P.J. 2000. Selected chemical parameters in the blood and metals in the organs of the Nile crocodile, Crocodylus Niloticus, in the Kruger National Park. Onderstepoort Journal of Veterinary Research, 67: 141-148 Healthy and sick crocodiles of varying sizes were examined from the Olifants River in the central part of the Kruger National Park, the Sabi River in the southern part and the Shingwedzi River in the northern region. Blood was collected for the determination of certain parameters and samples of fat, muscle, kidney and liver tissue were collected and analyzed for their heavy metal content. The results of the blood analyses are within the range recorded in the literature, but the metal analyses were inconclu sive as similar data are not available for comparison. The results of the metal analyses are presented here for use as baseline and reference data. Keywords: Blood, crocodile, Crocodylus Niloticus, Kruger National Park, metals INTRODUCTION which fluctuate seasonally (Van der Merwe, Van Vuren & Du Preez 1993; Seymore, Du Preez & Van The numbers of crocodiles, Crocody/us ni/oticus, in Vuren 1995; Robinson & Avenant-Oldewage 1997; especially the Olifants and Letaba Rivers in the Marx & Avenant-Oldewage 1998). As especially C. Kruger National Park (KNP) seemed to be declining gariepinus is a major food item of larger crocodiles over a number of years. -
The Political Ecology of a Small-Scale Fishery, Mweru-Luapula, Zambia
Managing inequality: the political ecology of a small-scale fishery, Mweru-Luapula, Zambia Bram Verelst1 University of Ghent, Belgium 1. Introduction Many scholars assume that most small-scale inland fishery communities represent the poorest sections of rural societies (Béné 2003). This claim is often argued through what Béné calls the "old paradigm" on poverty in inland fisheries: poverty is associated with natural factors including the ecological effects of high catch rates and exploitation levels. The view of inland fishing communities as the "poorest of the poorest" does not imply directly that fishing automatically lead to poverty, but it is linked to the nature of many inland fishing areas as a common-pool resources (CPRs) (Gordon 2005). According to this paradigm, a common and open-access property resource is incapable of sustaining increasing exploitation levels caused by horizontal effects (e.g. population pressure) and vertical intensification (e.g. technological improvement) (Brox 1990 in Jul-Larsen et al. 2003; Kapasa, Malasha and Wilson 2005). The gradual exhaustion of fisheries due to "Malthusian" overfishing was identified by H. Scott Gordon (1954) and called the "tragedy of the commons" by Hardin (1968). This influential model explains that whenever individuals use a resource in common – without any form of regulation or restriction – this will inevitably lead to its environmental degradation. This link is exemplified by the prisoner's dilemma game where individual actors, by rationally following their self-interest, will eventually deplete a shared resource, which is ultimately against the interest of each actor involved (Haller and Merten 2008; Ostrom 1990). Summarized, the model argues that the open-access nature of a fisheries resource will unavoidably lead to its overexploitation (Kraan 2011). -
Red Data List Special Edition
Newsletter of the Southern African Botanical Diversity Network Volume 6 No. 3 ISSN 1027-4286 November 2001 Invasive Alien Plants Part 2 Southern Mozambique Expedition Living Plant Collections: Lowveld, Mozambique, Namibia REDSABONET NewsDATA Vol. 6 No. 3 November LIST 2001 SPECIAL EDITION153 c o n t e n t s Red Data List Features Special 157 Profile: Ezekeil Kwembeya ON OUR COVER: 158 Profile: Anthony Mapaura Ferraria schaeferi, a vulnerable 162 Red Data Lists in Southern Namibian near-endemic. 159 Tribute to Paseka Mafa (Photo: G. Owen-Smith) Africa: Past, Present, and Future 190 Proceedings of the GTI Cover Stories 169 Plant Red Data Books and Africa Regional Workshop the National Botanical 195 Herbarium Managers’ 162 Red Data List Special Institute Course 192 Invasive Alien Plants in 170 Mozambique RDL 199 11th SSC Workshop Southern Africa 209 Further Notes on South 196 Announcing the Southern 173 Gauteng Red Data Plant Africa’s Brachystegia Mozambique Expedition Policy spiciformis 202 Living Plant Collections: 175 Swaziland Flora Protection 212 African Botanic Gardens Mozambique Bill Congress for 2002 204 Living Plant Collections: 176 Lesotho’s State of 214 Index Herbariorum Update Namibia Environment Report 206 Living Plant Collections: 178 Marine Fishes: Are IUCN Lowveld, South Africa Red List Criteria Adequate? Book Reviews 179 Evaluating Data Deficient Taxa Against IUCN 223 Flowering Plants of the Criterion B Kalahari Dunes 180 Charcoal Production in 224 Water Plants of Namibia Malawi 225 Trees and Shrubs of the 183 Threatened