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CROWNED CORMORANT | Microcarbo Coronatus (Phalacrocorax Coronatus)
CROWNED CORMORANT | Microcarbo coronatus (Phalacrocorax coronatus) J Kemper | Reviewed by: T Cook; AJ Williams © Jessica Kemper Conservation Status: Near Threatened Southern African Range: Coastal Namibia, South Africa Area of Occupancy: 6,700 km2 Population Estimate: 1,200 breeding pairs in Namibia Population Trend: Stable to slightly increasing Habitat: Coastal islands and rocks, protected mainland sites, artificial structures, inshore marine waters Threats: Disturbance, entanglement in human debris and artificial structures, predation by gulls and seals, pollution from oiling 152 BIRDS TO WATCH IN NAMIBIA DISTRIBUTION AND ABUNDANCE TABLE 2.5: A resident species with some juvenile dispersal, this small Number of Crowned Cormorant breeding pairs at individu- cormorant is endemic to south-west Namibia and west al breeding localities in Namibia (listed north to south), esti- to south-western South Africa. It has a very restricted mated from annual peaks of monthly nest counts at Mercu- ry, Ichaboe, Halifax and Possession islands, and elsewhere range along the coastline (Crawford 1997b), occupying an from opportunistic counts, not necessarily done during peak area of about 6,700 km2 in Namibia (Jarvis et al. 2001). It breeding (Bartlett et al. 2003, du Toit et al. 2003, Kemper et usually occurs within one kilometre of the coast, and has al. 2007, MFMR unpubl. data). not been recorded more than 10 km from land (Siegfried et al. 1975). It breeds at numerous localities in Namibia Number of Date of most and South Africa. In Namibia, it is known to breed at 12 breeding recent reliable islands, five mainland localities and one artificial structure, Breeding locality pairs estimate from Bird Rock Guano Platform near Walvis Bay to Sinclair Bird Rock Platform 98 1999/2000 Island (Table 2.5: Bartlett et al. -
The German Colonization of Southwest Africa and the Anglo-German Rivalry, 1883-1915
University of Nebraska at Omaha DigitalCommons@UNO Student Work 7-1-1995 Doors left open then slammed shut: The German colonization of Southwest Africa and the Anglo-German rivalry, 1883-1915 Matthew Erin Plowman University of Nebraska at Omaha Follow this and additional works at: https://digitalcommons.unomaha.edu/studentwork Recommended Citation Plowman, Matthew Erin, "Doors left open then slammed shut: The German colonization of Southwest Africa and the Anglo-German rivalry, 1883-1915" (1995). Student Work. 435. https://digitalcommons.unomaha.edu/studentwork/435 This Thesis is brought to you for free and open access by DigitalCommons@UNO. It has been accepted for inclusion in Student Work by an authorized administrator of DigitalCommons@UNO. For more information, please contact [email protected]. DOORS LEFT OPEN THEN SLAMMED SHUT: THE GERMAN COLONIZATION OF SOUTHWEST AFRICA AND THE ANGLO-GERMAN RIVALRY, 1883-1915. A Thesis Presented to the Department of History and the Faculty of the Graduate College University of Nebraska In Partial Fulfillment of the Requirements for the Degree Master of Arts University of Nebraska at Omaha by Matthew Erin Plowman July 1995 UMI Number: EP73073 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. UMI Blsaartalibn Publish*rig UMI EP73073 Published by ProQuest LLC (2015). Copyright in the Dissertation held by the Author. -
Effects of Natural and Human-Induced Hypoxia on Coastal Benthos
Biogeosciences, 6, 2063–2098, 2009 www.biogeosciences.net/6/2063/2009/ Biogeosciences © Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Effects of natural and human-induced hypoxia on coastal benthos L. A. Levin1, W. Ekau2, A. J. Gooday3, F. Jorissen4, J. J. Middelburg5, S. W. A. Naqvi6, C. Neira1, N. N. Rabalais7, and J. Zhang8 1Integrative Oceanography Division, Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, CA 92093-0218, USA 2Fisheries Biology, Leibniz Zentrum fur¨ Marine Tropenokologie,¨ Leibniz Center for Tropical Marine Ecology, Fahrenheitstr. 6, 28359 Bremen, Germany 3National Oceanography Centre, Southampton, European Way, Southampton SO14 3ZH, UK 4Laboratory of Recent and Fossil Bio-Indicators (BIAF), Angers University, 2 Boulevard Lavoisier, 49045 Angers Cedex 01, France 5Faculty of Geosciences, Utrecht University, P.O. Box 80021, 3508 TA Utrecht, The Netherlands 6National Institution of Oceanography, Dona Paula, Goa 403004, India 7Louisiana Universities Marine Consortium, Chauvin, Louisiana 70344, USA 8State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 Zhongshan Road North, Shanghai 200062, China Received: 17 January 2009 – Published in Biogeosciences Discuss.: 3 April 2009 Revised: 21 August 2009 – Accepted: 21 August 2009 – Published: 8 October 2009 Abstract. Coastal hypoxia (defined here as <1.42 ml L−1; Mobile fish and shellfish will migrate away from low-oxygen 62.5 µM; 2 mg L−1, approx. 30% oxygen saturation) devel- areas. Within a species, early life stages may be more subject ops seasonally in many estuaries, fjords, and along open to oxygen stress than older life stages. coasts as a result of natural upwelling or from anthropogenic Hypoxia alters both the structure and function of benthic eutrophication induced by riverine nutrient inputs. -
Pelagic Key Species and Mechanisms Driving Energy Flows in the Northern
Journal of Marine Systems 188 (2018) 49–62 Contents lists available at ScienceDirect Journal of Marine Systems journal homepage: www.elsevier.com/locate/jmarsys Pelagic key species and mechanisms driving energy flows in the northern Benguela upwelling ecosystem and their feedback into biogeochemical T cycles ⁎ Werner Ekaua, , Holger Auelb, Wilhelm Hagenb, Rolf Koppelmannc, Norbert Wasmundf, Karolina Bohatac, Fritz Buchholzd, Simon Geista,e, Bettina Martinc, Anna Schukatb, Hans M. Verheyeg,h, Thorsten Wernerd a Leibniz Centre for Tropical Marine Research, Department of Ecology, Bremen, Germany b BreMarE - Bremen Marine Ecology, Marine Zoology, University of Bremen, Bremen, Germany c Institute of Hydrobiology and Fisheries Science, University of Hamburg, Germany d Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany e Texas A&M University Corpus Christi, Department of Life Sciences, Corpus Christi, USA f Leibniz Institute for Baltic Sea Research, Warnemünde, Germany g Department of Environmental Affairs, Cape Town, South Africa h University of Cape Town, Marine Research Institute, Rondebosch, South Africa ARTICLE INFO ABSTRACT Keywords: The northern Benguela Upwelling System (nBUS) has been facing increasing temperatures and decreasing dis- Oxygen Minimum Zone solved oxygen (DO) levels over the last decades. This has implications for key processes and trophic interactions Benguela upwelling within the ecosystem including shifts in community composition, distribution ranges, and trophic levels, changes Zooplankton biomass in energy flows and migration patterns with feedbacks to biogeochemical processes. Here we summarise the Pelagic key taxa results gained from the GENUS project (Geochemistry and Ecology of the Namibian Upwelling System) focussing Oxygen consumption on the geochemical and ecological structures and processes dominating the pelagic component of the nBUS. -
KELP BLUE NAMIBIA (Pty) Ltd
KELP BLUE NAMIBIA (Pty) Ltd EIA SCOPING & IMPACT ASSESSMENT REPORT AND ENVIRONMENTAL MANAGEMENT PLAN FOR THE PROPOSED KELP CULTIVATION PILOT PROJECT NEAR LÜDERITZ, KARAS REGION Prepared for: Kelp Blue Namibia (Pty) Ltd August 2020 1 DOCUMENT CONTROL Report Title EIA SCOPING & IMPACT ASSESSMENT REPORT FOR THE PROPOSED KELP CULTIVATION PILOT PROJECT NEAR LÜDERITZ, KARAS REGION Report Author Werner Petrick Client Kelp Blue Namibia (Pty) Ltd Project Number NSP2020KB01 Report Number 1 Status Final to MEFT and MFMR Issue Date August 2020 DISCLAIMER The views expressed in the document are the objective, independent views of the author with input from various Environmental and Social Experts (i.e. Specialists). Neither Werner Petrick nor Namisun Environmental Projects and Development (Namisun) have any business, personal, financial, or other interest in the proposed Project apart from fair remuneration for the work performed. The content of this report is based on the author’s best scientific and professional knowledge, input from the Environmental Specialists, as well as available information. Project information contained herein is based on the interpretation of data collected and data provided by the client, accepted in good faith as being accurate and valid. Namisun reserves the right to modify the report in any way deemed necessary should new, relevant, or previously unavailable or undisclosed information become available that could alter the assessment findings. This report must not be altered or added to without the prior written consent of the author. Project Nr: NSP2020KB01 EIA SCOPING & IMPACT ASSESSMENT REPORT AND EMP FOR August 2020 Report number: 1 THE PROPOSED KELP CULTIVATION PILOT PROJECT 2 Table of Contents 1 INTRODUCTION .................................................................................................................................. -
Federal Register/Vol. 75, No. 187/Tuesday, September 28, 2010
Federal Register / Vol. 75, No. 187 / Tuesday, September 28, 2010 / Rules and Regulations 59645 * Elevation in feet (NGVD) + Elevation in feet (NAVD) Flooding source(s) Location of referenced elevation # Depth in feet Communities above ground affected ∧ Elevation in meters (MSL) Modified Unnamed Tributary No. 1 to At the area bounded by U.S. Route 33, Wabash Avenue, +1415 Unincorporated Areas of Fink Run (Backwater effects and County Route 33/1. Upshur County. from Buckhannon River). * National Geodetic Vertical Datum. + North American Vertical Datum. # Depth in feet above ground. ∧ Mean Sea Level, rounded to the nearest 0.1 meter. ADDRESSES Unincorporated Areas of Upshur County Maps are available for inspection at the Upshur County Courthouse Annex, 38 West Main Street, Buckhannon, WV 26201. (Catalog of Federal Domestic Assistance No. 76.913(b)(1)—62 FR 6495, February 12, collection requirements that are subject 97.022, ‘‘Flood Insurance.’’) 1997. to OMB approval. Dated: September 21, 2010. 76.924(e)(1)(iii) and (e)(2)(iii)—61 FR [FR Doc. 2010–24203 Filed 9–27–10; 8:45 am] Edward L. Connor, 9367, March 8, 1996. BILLING CODE 6712–01–P Acting Federal Insurance and Mitigation 76.925—60 FR 52119, October 5, 1995. Administrator, Department of Homeland 76.942(f)—60 FR 52120, October 5, Security, Federal Emergency Management 1995. DEPARTMENT OF THE INTERIOR Agency. 76.944(c)—60 FR 52121, October 5, [FR Doc. 2010–24326 Filed 9–27–10; 8:45 am] 1995. Fish and Wildlife Service BILLING CODE 9110–12–P 76.957—60 FR 52121, October 5, 1995. -
Sustainable Exploitation of Small Pelagic Fish Stocks Challenged by Environmental and Ecosystem Changes: a Review
BULLETIN OF MARINE SCIENCE, 76(2): 385–462, 2005 SUSTAINABLE EXPLOITATION OF SMALL PELAGIC FISH STOCKS CHALLENGED BY ENVIRONMENTAL AND ECOSYSTEM CHANGES: A REVIEW Pierre Fréon, Philippe Cury, Lynne Shannon, and Claude Roy ABSTRACT Small pelagic fish contribute up to 50% of the total landing of marine species. They are most abundant in upwelling areas and contribute to food security. Exploit- ed stocks of these species are prone to large interannual and interdecadal variation of abundance as well as to collapse. We discuss why small pelagic fish and fisheries are so “special” with regard to their biology, ecology, and behavior. Two adjectives can sum up the characteristics of pelagic species: variability and instability. Analy- ses of the relationships between small pelagic fish and their physical environment at different time-scales illustrate the complexity of the interplay between exploita- tion and environmental impacts. How small pelagic fish species are positioned and related within the trophic web suggests that these species play a central role in the functioning and dynamics of upwelling ecosystems. Finally, we discuss the sustain- able exploitation of small pelagic fisheries through appropriate management, focus- ing on the resilience to exploitation, a comparison of different management options and regulatory mechanisms. We recommend that statistical, socio-economical, and political merits of a proposed two-level (short- and long-term) management strategy be undertaken. Despite constant progress in understanding the complex processes involved in the variability of pelagic stock abundance, especially at short and medium time scales, our ability to predict abundance and catches is limited, which in turn limits our ca- pacity to properly manage the fisheries and ensure sustainable exploitation. -
Global Progress in Ecosystem-Based Fisheries Management
26th Lowell Wakefield Fisheries Symposium Global Progress in Ecosystem-Based Fisheries Management editors gordon h. kruse • howard i. browman • kevern l. cochrane diana evans • glen s. jamieson • patricia a. livingston douglas woodby • chang ik zhang university of alaska fairbanks Global Progress in Ecosystem-Based Fisheries Management editors gordon h. kruse • howard i. browman • kevern l. cochrane diana evans • glen s. jamieson • patricia a. livingston douglas woodby • chang ik zhang Alaska university of alaska fairbanks Elmer E. Rasmuson Library Cataloging in Publication Data: Global progress in ecosystem-based fisheries management / editors : G.H. Kruse … [et al.] – Fairbanks, Alaska : Alaska Sea Grant College Program, University of Alaska Fairbanks, 2012. p. : ill. ; cm. – (Alaska Sea Grant College Program, University of Alaska Fairbanks ; AK-SG-12-01) Proceedings of the symposium Ecosystems 2010 : global progress on ecosystem- based fisheries management, November 8-11, 2010, Anchorage, Alaska. Includes bibliographical references. 1. Fishery management—Congresses. 2. Sustainable fisheries—Congresses. 3. Marine ecosystem management—Congresses. I. Title. II. Kruse, Gordon H. III. Series: Lowell Wakefield Fisheries symposia series (26th : 2010 : Anchorage, Alaska). IV. Series: Alaska Sea Grant College Program report ; AK-SG-12-01. SH329.S89 P76 2012 ISBN 978-1-56612-166-8 doi:10.4027/gpebfm.2012 Citation Kruse, G.H., H.I. Browman, K.L. Cochrane, D. Evans, G.S. Jamieson, P.A. Livingston, D. Woodby, and C.I. Zhang, eds. 2012. Global Progress in Ecosystem-Based Fisheries Management. Alaska Sea Grant, University of Alaska Fairbanks. Credits This book is published by Alaska Sea Grant, supported by the U.S. Department of Commerce, NOAA National Sea Grant Office, grant NA10OAR4170097, project A/161- 02, and by the University of Alaska Fairbanks with state funds. -
Walvis Bay: South Africa's Claims to Sovereignty
Denver Journal of International Law & Policy Volume 16 Number 2 Winter/Spring Article 4 May 2020 Walvis Bay: South Africa's Claims to Sovereignty Earle A. Partington Follow this and additional works at: https://digitalcommons.du.edu/djilp Recommended Citation Earle A. Partington, Walvis Bay: South Africa's Claims to Sovereignty, 16 Denv. J. Int'l L. & Pol'y 247 (1988). This Article is brought to you for free and open access by the University of Denver Sturm College of Law at Digital Commons @ DU. It has been accepted for inclusion in Denver Journal of International Law & Policy by an authorized editor of Digital Commons @ DU. For more information, please contact [email protected],dig- [email protected]. Walvis Bay: South Africa's Claims to Sovereignty EARLE A. PARTINGTON* I. INTRODUCTION After more than a century of colonial domination, the Mandated Territory of South West Africa/Namibia' is close to receiving-its indepen- dence. South Africa continues to administer the Territory as it has since its military forces conquered and occupied it in 1915 during World War I. In the negotiations between South Africa and the United Nations over Namibian independence, differences have arisen between the parties over whether the Territory includes either (1) the port and settlement of Walvis Bay, an enclave of 1124 square kilometers in the center of Namibia's Atlantic coast, or (2) the Penguin Islands, twelve small guano islands strung along 400 kilometers of the Namibian coast between Walvis Bay and the Orange River, the Orange River being part of the boundary between South Africa and Namibia. -
Life History Changes with the Colonisation of Land by Fish
Life history changes with the colonisation of land by fish Edward Richard Murray Platt Supervised by: Terry Ord THESIS SUBMITTED FOR THE DEGREE OF MASTER OF PHILOSOPHY Evolution and Ecology Research Centre School of Biological, Earth and Environmental Sciences Faculty of Science University of New South Wales March 2014 THE UNIVERSITY OF NEW SOUTH WALES Thesis/Dissertation Sheet Surname or Family name: Platt First name: Edward Other name/s: Richard Murray Abbreviation for degree as grven an the University calendar: MPhil School: Biological, Earth and Environmental Sciences F acuity: Science Title:Mr My thesis addressed two questions: whether survival was inferred to have improved for fish that moved onto land, and what the relative role of predation and density were for detenmining life history variation among populations within one of these land species. For the first question I used life history theory to examine whether survival was inferred to have improved in two fish families which have independently made the transition onto land: Gobiidae and Blenniidae. I examined growth and various aspects of reproductive investment among terrestrial and aquatic species, finding that differences varied according to the level of independence from water. This was consistent with improved survival for certain age classes on land. Nevertheless, the details of life history change differed in each family, with the greatest increases in survival implied for early age classes in Blenniidae, but older age classes in Gobiidae. This suggests fundamental differences in the way the colonization of land occurred in each family. For the second question I investigated the consequences of predataon and density on life hastory variation among frve populations of the Pacific leaping blenny A/ficus amoldorum. -
Small Pelagics in Upwelling Systems: Patterns of Interaction and Structural Changes in ‘‘Wasp-Waist’’ Ecosystems
ICES Journal of Marine Science, 57: 603–618. 2000 doi:10.1006/jmsc.2000.0712, available online at http://www.idealibrary.com on Small pelagics in upwelling systems: patterns of interaction and structural changes in ‘‘wasp-waist’’ ecosystems Philippe Cury, Andrew Bakun, Robert J. M. Crawford, Astrid Jarre, Renato A. Quin˜ones, Lynne J. Shannon, and Hans M. Verheye Cury, P., Bakun, A., Crawford, R. J. M., Jarre, A., Quin˜ones, R. A., Shannon, L. J., and Verheye, H. M. 2000. Small pelagics in upwelling systems: patterns of interaction and structural changes in ‘‘wasp-waist’’ ecosystems. – ICES Journal of Marine Science, 57: 603–618. In upwelling ecosystems, there is often a crucial intermediate trophic level, occupied by small, plankton-feeding pelagic fish dominated by one or a few schooling species. Their massive populations may vary radically in size under intensive exploitation. We have used decadal-scale time series to explore patterns of interactions between these fish, their prey, and their predators so as to quantify functional roles of small pelagic fish in those ecosystems. Top-down control of zooplankton is detected off South Africa, Ghana, Japan, and in the Black Sea. Conversely, bottom-up control of predators, such as predatory fish and marine birds, is observed in the Benguela, Guinea, and Humboldt currents. Thus small pelagic fish exert a major control on the trophic dynamics of upwelling ecosystems and constitute midtrophic-level ‘‘wasp-waist’’ populations. Ecosystem effects of fishing are addressed by considering potential structural changes at different scales of observation, ranging from individ- uals, via school dynamics, to food webs. -
Partitioning of Nesting Space Among Seabirds of the Benguela Upwelling Region
PARTITIONING OF NESTING SPACE AMONG SEABIRDS OF THE BENGUELA UPWELLING REGION DAviD C. DuFFY & GRAEME D. LA CocK Percy FitzPatrick Institute of African Ornithology, University of Cape Town, Rondebosch, South Africa, 7700. Received February /985 SUMMARY DuFFY, D. C. & LA CocK, G. D. 1985. Partitioning of nesting space among seabirds of the Benguela upwel ling region. Ostrich 56: 186-201. An examination of nesting habitats used by the four main species of seabirds nesting on southern African islands (Jackass Penguin Spheniscus demersus, Cape Cormorant Phalacrocorax capensis, Bank Cormorant P. neglectus and Cape Gannet Morus capensis) revealed relatively minor differences and extensive over laps between species, primarily in subcolony size, steepness of nesting substratum, and proximity to cliffs. A weak dominance hierarchy existed; gannets could displace penguins, and penguins could displace cor morants. This hierarchy appeared to have little effect on partitioning of nesting space. Species successfully defended occupied sites in most cases of interspecific conflict, suggesting that site tenure by one species could prevent nesting by another. The creation of additional nesting space on Namibian nesting platforms did not increase guano harvests, suggesting that nesting space had not previously limited the total nesting population of Cape Cormorants, the most abundant of the breeding species, in Namibia. While local shortages of nesting space may occur, populations of the four principal species of nesting seabirds in the Benguela upwelling region do not seem to have been limited by the availability of nesting space on islands. INTRODUCTION pean settlement, space for nesting was limited. Af ter settlement, human disturbance such as hunting The breeding seabirds of the Benguela upwel and guano extraction reduced nesting space, re ling region off Namibia and South Africa are be sulting in smaller populations of nesting seabirds.