East African Living Lakes Network Status Report 2008 by Ann
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Lake Chala Tilapia (Oreochromis Hunteri) Ecological Risk Screening Summary
Lake Chala Tilapia (Oreochromis hunteri) Ecological Risk Screening Summary U.S. Fish & Wildlife Service, March 2012 Revised, June 2018 Web Version, 12/15/2020 Organism Type: Fish Overall Risk Assessment Category: Uncertain Photo: D. H. Eccles. Licensed under Creative Commons BY-NC 3.0. Available: http://www.fishbase.org/photos/PicturesSummary.php?StartRow=0&ID=2032&what=species&T otRec=2. (June 18, 2018). 1 Native Range and Status in the United States Native Range From Froese and Pauly (2018a): “Africa: endemic to Lake Chala [Seegers et al. 2003].” 1 Status in the United States No records of Oreochromis hunteri in trade or in the wild in the United States were found. The Florida Fish and Wildlife Conservation Commission has listed the tilapia Oreochromis hunteri as a prohibited species. Prohibited nonnative species (FFWCC 2018), "are considered to be dangerous to the ecology and/or the health and welfare of the people of Florida. These species are not allowed to be personally possessed or used for commercial activities. All species in the genus Oreochromis are considered regulated Type A species in Washington. Regulated Type A species (Washington State Senate 2019) are “nonnative aquatic animal species that pose a low to moderate invasive risk that can be managed based on intended use or geographic scope of introduction, have a beneficial use, and are a priority for department-led or department-approved management of the species' beneficial use and invasive risks.” Possession of any species of tilapia is prohibited without permit in the State of Louisiana (Louisiana State Legislature 2019). O. amphimelas falls within Group I of New Mexico’s Department of Game and Fish Director’s Species Importation List (New Mexico Department of Game and Fish 2010). -
And Shall Not Be Reproduced in Part Or Full, Or in Any Format Without Prior Written Permission from the Author And/ Or University of Eldoret
i DECLARATION Declaration by the candidate This thesis is my original work and has not been submitted for any academic award in any institution; and shall not be reproduced in part or full, or in any format without prior written permission from the author and/ or University of Eldoret. Matolla Geraldine K. Signature …………..… Date…………….. (SC/DPhil/033/07) . Declaration by the Supervisors This thesis has been submitted with our approval as University supervisors. Prof. Dr. Phillip O. Raburu Signature……………… Date……..……… University of Eldoret Dr. Moses Ngeiywa Signature…..…….…… Date……………… University of Eldoret ii DEDICATION I dedicate this work to you my dear children Cynthia Wanza and Dion Mwema. You are my inspiration. God bless you. iii ABSTRACT Sustainability of culture-based fisheries (CBF) development in small water bodies (SWBs) largely depends on their ecological conditions and productivity. Studies were conducted from November 2010 to July 2012 in Kesses and Kerita dams in Uasin Gishu and Mauna and Yenga dams in Siaya. Sampling for water quality, phytoplankton, macroinvertebrates and fish parasites was conducted once a month. Phytoplankton and macroinvertebrates were collected using plankton and scoop nets respectively. Water quality parameters were measured in-situ using electronic meters. Parasitological examination was done according to standard procedures. Significant differences in temperature (F=17.38; p=0.000), DO (F=8.76; p= 0.000) and TN (F= 6.34; p=0.01) were found between Uasin Gishu and Siaya dams. Water pH in Kesses was higher during the wet season (F=14.44; p= 0.000) while TN and TP were higher during the dry season (F=9.38; p=0.02) and F=5.02; p=0.023 respectively). -
Diversity of Plant Niches Available for Hominin Settlement During Upper Bed I- Lower Bed II: a Phytolith Perspective, Oldupai Gorge (Tanzania)
University of Calgary PRISM: University of Calgary's Digital Repository Graduate Studies The Vault: Electronic Theses and Dissertations 2020-01-09 Diversity of plant niches available for Hominin settlement during Upper Bed I- Lower Bed II: A phytolith perspective, Oldupai Gorge (Tanzania) Itambu, Makarius Peter Itambu, M. P. (2020). Diversity of plant niches available for Hominin settlement during Upper Bed I- Lower Bed II: A phytolith perspective, Oldupai Gorge (Tanzania) (Unpublished doctoral thesis). University of Calgary, Calgary, AB. http://hdl.handle.net/1880/111642 doctoral thesis University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. Downloaded from PRISM: https://prism.ucalgary.ca UNIVERSITY OF CALGARY Diversity of plant niches available for Hominin settlement during Upper Bed I- Lower Bed II: A phytolith perspective, Oldupai Gorge (Tanzania) by Makarius Peter Itambu A THESIS SUBMITTED TO THE FACULTY OF GRADUATE STUDIES IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY GRADUATE PROGRAM IN ARCHAEOLOGY CALGARY, ALBERTA JANUARY, 2020 © Makarius Peter Itambu 2020 ABSTRACT This research focused on reconstructing the diversity of plant landscapes that framed hominin evolution in Oldupai Gorge. The study had two main overarching goals with interrelated objectives. The first goal was to assess the synergetic links between hominin habitats and ecological preferences during the Pleistocene at Oldupai Gorge, and the second was the reconstruction of vegetation patterns characteristic during Upper Most Bed I to Lower Most Bed II. -
Wetlands of Kenya
The IUCN Wetlands Programme Wetlands of Kenya Proceedings of a Seminar on Wetlands of Kenya "11 S.A. Crafter , S.G. Njuguna and G.W. Howard Wetlands of Kenya This one TAQ7-31T - 5APQ IUCN- The World Conservation Union Founded in 1948 , IUCN— The World Conservation Union brings together States , government agencies and a diverse range of non - governmental organizations in a unique world partnership : some 650 members in all , spread across 120 countries . As a union , IUCN exists to serve its members — to represent their views on the world stage and to provide them with the concepts , strategies and technical support they need to achieve their goals . Through its six Commissions , IUCN draws together over 5000 expert volunteers in project teams and action groups . A central secretariat coordinates the IUCN Programme and leads initiatives on the conservation and sustainable use of the world's biological diversity and the management of habitats and natural resources , as well as providing a range of services . The Union has helped many countries to prepare National Conservation Strategies , and demonstrates the application of its knowledge through the field projects it supervises . Operations are increasingly decentralized and are carried forward by an expanding network of regional and country offices , located principally in developing countries . IUCN — The World Conservation Union - seeks above all to work with its members to achieve development that is sustainable and that provides a lasting improvement in the quality of life for people all over the world . IUCN Wetlands Programme The IUCN Wetlands Programme coordinates and reinforces activities of the Union concerned with the management of wetland ecosystems . -
Incorporating Biodiversity Concerns in Fisheries Management
Efforts to incorporate Biodiversity Concerns in Management of the Fisheries of Lake Victoria, East Africa Richard Ogutu-Ohwayo National Agricultural Research Organization, Fisheries Resources Research Institute, P. O. Box 343, Jinja, Uganda. E-mail: [email protected] Table of Contents Table of Contents...................................................................................................................................... 1 Abstract ..................................................................................................................................................... 3 Relationships between Components of Aquatic Systems ...................................................................... 3 Geographic Setting of Lake Victoria....................................................................................................... 3 Importance of Fisheries and Biodiversity in Fisheries ...........................................................................4 The Early Fisheries, their Exploitation and Management ...................................................................... 4 Status and Past Trends due to Human Exploitation and Management Efforts for Lake Victoria..... 5 Trends in Non-target Biodiversity Concerns .......................................................................................... 7 The Original Institutional, Policy and Legal Framework....................................................................... 8 Lessons from Past Efforts to Manage the Fisheries of Lake Victoria................................................... -
Lake Victoria Environmental Management Project Final
LAKE VICTORIA ENVIRONMENTAL MANAGEMENT PROJECT FINAL NATIONAL REPORT NATIONAL LESSIONS LEARNT CONSULTANCY ON WETLANDS COMPONENT ACTIVITIES BY PHILLIP RABURU Ph.D. DEPARTMENT OF FISHERIES AND AQUATIC SCIENCES MOI UNIVERSITY P. O. BOX 3900, ELDORET – Kenya [email protected] 30TH JUNE, 2005 1 EXECUTIVE SUMMARY This report presents a critical review of activities carried out by LVEMP Wetlands Component in the last seven years of the project with a view of coming up with lessons learnt form interventions implemented in the entire basin. The thirty-day exercise was based on both primary and secondary data. Various methodologies were used to collect information from project implementers, beneficiaries and other relevant stakeholders including structured and unstructured interviews. Desk review was also carried out on reports accumulated by the wetlands component, literature from libraries of research institutions, universities, government departments and local and international NGO’s. Field visits were made to selected sites where randomly selected beneficiaries were interviewed and investments inspected. Some information was also obtained through direct observation, workshops and informal interviews. Findings show that the component used appropriate methodologies like PRA’s to find an entry point into the communities. Rapid assessments, inventories and market surveys were also conducted to identify and prioritize activities that would best answer problems faced by the community and the wetland resources. In some cases, the beneficiaries were adequately exposed by sponsoring them to various exhibitions and exchange visits. Membership of all the groups was relatively low, some with no experience in the implementation of such projects which compromised their performance. Supervision and intensity of extension services and training were the major contributing factor in the performance of the group. -
Reconstructing Holocene Climatic and Environmental Change Using Molecular and Isotopic Proxies from Lake Sedimentary Records
Reconstructing Holocene climatic and environmental change using molecular and isotopic proxies from lake sedimentary records Inaugural-Dissertation zur Erlangung des Doktorgrades der Mathematisch-Naturwissenschaftlichen Fakultät der Universität zu Köln vorgelegt von Matthias Thienemann aus Düsseldorf Köln, 2017 Berichterstatter: Prof. Dr. Janet Rethemeyer (Gutachter) Prof. Dr. Hans-Rudolf Bork Tag der mündlichen Prüfung: 29.06.2017 “Die Lebewelt des Sees ist in ihrer Entwicklung nicht nur abhängig von ihrer Umwelt, sie verändert auch ihrerseits ihren Lebensraum; Lebewelt und Umwelt stehen in Wechselwirkung zueinander.“ Thienemann, August (1941) Abstract Abstract Greater understanding of Holocene climatic and environmental variability and processes, as well as about feedback and forcing mechanisms of the climate system is crucial for the assessment of both natural and anthropogenic future climate and environmental changes. Compared to prior epochs in earth’s history, the climate of the Holocene is traditionally regarded as relatively stable. However, Holocene climate also showed significant fluctuations although perturbation were smaller in magnitude compared to Pleistocene. These fluctuations can be assessed by organic geochemical molecular and isotope analyses of lake sedimentary organic matter (OM) that have the potential to reveal a variety of information regarding physical, chemical and biological changes and processes of the lake, its environment, and the climate. Therefore, within the scope of this thesis, sedimentary archives from -
Widespread Colonisation of Tanzanian Catchments by Introduced Oreochromis Tilapia Fishes: the Legacy from Decades of Deliberate Introduction
Shechonge, A., Ngatunga, B. P., Bradbeer, S. J., Day, J. J., Freer, J. J., Ford, A. G. P., Kihedu, J., Richmond, T., Mzighani, S., Smith, A. M., Sweke, E. A., Tamatamah, R., Tyers, A. M., Turner, G. F., & Genner, M. J. (2019). Widespread colonisation of Tanzanian catchments by introduced Oreochromis tilapia fishes: the legacy from decades of deliberate introduction. Hydrobiologia, 832(1), 235-253. https://doi.org/10.1007/s10750-018-3597-9 Publisher's PDF, also known as Version of record License (if available): CC BY Link to published version (if available): 10.1007/s10750-018-3597-9 Link to publication record in Explore Bristol Research PDF-document This is the final published version of the article (version of record). It first appeared online via SPRINGER at https://link.springer.com/article/10.1007%2Fs10750-018-3597-9 . Please refer to any applicable terms of use of the publisher. University of Bristol - Explore Bristol Research General rights This document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/red/research-policy/pure/user-guides/ebr-terms/ Hydrobiologia https://doi.org/10.1007/s10750-018-3597-9 ADVANCES IN CICHLID RESEARCH III Widespread colonisation of Tanzanian catchments by introduced Oreochromis tilapia fishes: the legacy from decades of deliberate introduction Asilatu Shechonge . Benjamin P. Ngatunga . Stephanie J. Bradbeer . Julia J. Day . Jennifer J. Freer . Antonia G. P. Ford . Jonathan Kihedu . Tabitha Richmond . Semvua Mzighani . Alan M. Smith . Emmanuel A. Sweke . Rashid Tamatamah . -
Eastern Afromontane Biodiversity Hotspot
Ecosystem Profile EASTERN AFROMONTANE BIODIVERSITY HOTSPOT FINAL VERSION 24 JANUARY 2012 Prepared by: BirdLife International with the technical support of: Conservation International / Science and Knowledge Division IUCN Global Species Programme – Freshwater Unit IUCN –Eastern Africa Plant Red List Authority Saudi Wildlife Authority Royal Botanic Garden Edinburgh, Centre for Middle Eastern Plants The Cirrus Group UNEP World Conservation Monitoring Centre WWF - Eastern and Southern Africa Regional Programme Office Critical Ecosystem Partnership Fund And support from the International Advisory Committee Neville Ash, UNEP Division of Environmental Policy Implementation; Elisabeth Chadri, MacArthur Foundation; Fabian Haas, International Centre of Insect Physiology and Ecology; Matthew Hall, Royal Botanic Garden Edinburgh, Centre for Middle Eastern Plants; Sam Kanyamibwa, Albertine Rift Conservation Society; Jean-Marc Froment, African Parks Foundation; Kiunga Kareko, WWF, Eastern and Southern Africa Regional Programme Office; Karen Laurenson, Frankfurt Zoological Society; Leo Niskanen, IUCN Eastern & Southern Africa Regional Programme; Andy Plumptre, Wildlife Conservation Society; Sarah Saunders, Royal Society for the Protection of Birds; Lucy Waruingi, African Conservation Centre. Drafted by the ecosystem profiling team: Ian Gordon, Richard Grimmett, Sharif Jbour, Maaike Manten, Ian May, Gill Bunting (BirdLife International) Pierre Carret, Nina Marshall, John Watkin (CEPF) Naamal de Silva, Tesfay Woldemariam, Matt Foster (Conservation International) -
Lake Chala: 250-Ky Record of Basaltic Volcanism History of Scoria-Cone
1 40-character title: Lake Chala: 250-ky record of basaltic volcanism 2 History of scoria-cone eruptions on the eastern shoulder of the Kenya-Tanzania Rift 3 revealed in the 250-ky sediment record of Lake Chala near Mt. Kilimanjaro 4 Catherine Martin-Jonesa, b*, Christine Lanea, Maarten Van Daelec, Thijs Van der Meerenb, 5 Christian Wolffd, Heather Moorhoused, Emma Tomlinsone and Dirk Verschurenb 6 aDepartment of Geography, University of Cambridge, Cambridge CB2 3EN, UK 7 bLimnology Unit, Department of Biology, Ghent University, B-9000 Gent, Belgium 8 cRenard Centre of Marine Geology, Department of Geology, Ghent University, B-9000 Gent, 9 Belgium 10 dLancaster Environment Centre, University of Lancaster, Lancaster LA1 4YQ, UK 11 eDepartment of Geology, Trinity College Dublin, Dublin 2, Ireland 12 Abstract 13 Reconstructions of the timing and frequency of past eruptions are important to assess the 14 propensity for future volcanic activity, yet in volcanic areas such as the East African Rift only 15 piecemeal eruption histories exist. Understanding the volcanic history of scoria cone fields, 16 where eruptions are often infrequent and deposits strongly weathered, is particularly 17 challenging. Here we reconstruct a history of volcanism from scoria cones situated along the 18 eastern shoulders of the Kenya-Tanzania Rift, using a sequence of tephra (volcanic ash) 19 layers preserved in the ~250-ky sediment record of Lake Chala near Mt. Kilimanjaro. Seven 20 visible and two non-visible (crypto-) tephra layers in the Lake Chala sequence are attributed 21 to activity from the Mt. Kilimanjaro (northern Tanzania) and the Chyulu Hills (southern Kenya) 22 volcanic fields, on the basis of their glass chemistry, textural characteristics and known 23 eruption chronology. -
Options of the Yala Wetland Management for Sustainable Development and Biodiversity Conservation
OPTIONS OF THE YALA WETLAND MANAGEMENT FOR SUSTAINABLE DEVELOPMENT AND BIODIVERSITY CONSERVATION F. Mwaura, M., Ngugi, E. Were, E. Kagure, L. Wanjohi, J. Mbuthia, J. Otieno & M. Makala 1 Preface For the last two years, Yala swamp controversy has been in the headlines in the Kenyan media. Although the controversy seem to have been in place for the last 50 years as concerns the infringement and displacement of humans by the papyrus, the ownership of the swamp and, the rehabilitation and development of the wetland, it took a new dimension in the year 2002. In this year Dominion Company from USA showed interest of developing the wetland for rice growing and put its proposal to the Kenyan Government. The Lake Basin Development Authority did the Environmental Impact Assessment (EIA). A perusal through the EIA report, proved the partiality of the study. The poverty level of the locals and the desperation for improved living standard may justify the bias. Immediately it became clear that Dominion was to rehabilitate the wetland, two county councils cum districts (Siaya and Bondo) started boundary tussles over the wetland. It was agreed that the two county councils share the land in question. To date, the inhabitants will show you different boundary points, each respondent impressing you of how the wetland is in their own district. This study was carried out when tension was high in the region, especially in both Bondo and Siaya Districts, where the activities of Dominion Group of Company will have direct impact. Initially most of the locals associated themselves with the developers as they hoped to benefit directly, largely through employment for themselves and their relatives. -
A Note on the Fishes of Lake Jipe and Lake Chale on the Kenya-Tanzania Border
A Note on the Fishes of Lake Jipe and Lake Chale on the Kenya-Tanzania Border. Item Type Journal Contribution Authors Dadzie, S.; Haller, R.D.; Trewavas, E. Download date 01/10/2021 04:07:07 Link to Item http://hdl.handle.net/1834/7784 @ Page 46 No.l92 A NOTE ON THE FISHESOF LAKE JIPE AND LAKE CHALE ON THE KENYA.TANZANIABORDER StephenDadzie', Rene D. Ilaller'& EthelwynnTrewavas ' G Lake Jipe is a shallow basin at about 3' 40' S 37' 40' E, east of the North Pare Mountains in Tanzania.Chala is a smallerlake lying in a rocky craterabout 19km north of Lake Jipe. In 1951, whenitwas visitedbyDr.Inwe-McConnell(thenMissR.H.Lowe)LakeJipewasabout 12miles ( 19 lnn) long and 1.5 miles (2 km) wide andonly a few feet deep. Its northernend is a swampinto which flows a stream, known in Kenya as the Lumi, from Mount Kilimanjaro. From its northwesternend issues,at least in wetter periods,the River Ruvrt' headwaterof the long river formerly known by that name,but now called the Pangani,the nameof the town at its mouth on the Indian Ocean.Since the formation of the barragelake Nyumba ya Mungu (NYM) in the upper PanganittreRuvuflowsfromLakeJipeintotheswampynorth-eastcornerofthislake.I-akeJipe's swampyedges are surroundedby semi-aquaticgnsses and reeds,and patchesof water-weeds (Najas mdPotamogeton\ spreadtheir leavesand flowers on its surface. Numerouswater bfuds prey on the lake's faunaand these and hippopotamus fertilize the water. The sketchby Sir llarry Johnston,reproduced here from his book of 1886,gives an idea of the lake's appearanceas it remainstoday, (Fig.