Impact on Local Fishermen on Inhaca Island, Mozambique, Due to Introduction of a New Marine Reserve
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Relatório Sobre O Estado De Conservação De Tartarugas
REPÚBLICA DE MOÇAMBIQUE MINISTÉRIO PARA A COORDENAÇÃO DA ACÇÃO AMBIENTAL Centro de Desenvolvimento Sustentável para as Zonas Costeiras REPORT ON THE CONSERVATION STATUS OF MARINE TURTLES IN MOZAMBIQUE Maputo, January 2006 Funded by DANIDA, PGCI-Phase II REPÚBLICA DE MOÇAMBIQUE MINISTÉRIO PARA A COORDENAÇÃO DA ACÇÃO AMBIENTAL Centro de Desenvolvimento Sustentável para as Zonas Costeiras REPORT ON THE CONSERVATION STATUS OF MARINE TURTLES IN MOZAMBIQUE Cristina M. M. Louro1 Marcos A. M. Pereira2 Alice C. D. Costa3 1 Grupo de Trabalho Tartarugas Marinhas de Moçambique and School of Tropical Environment Studies and Geography, James Cook University. E-mail: [email protected] 2 Grupo de Trabalho Tartarugas Marinhas de Moçambique. Email: [email protected] 3 Fundo Mundial para a Natureza. Email: [email protected] Cover: Green turtle and its nest, Bazaruto Archipelago National Park (Photo: Eduardo Videira). Maputo, January 2006 Louro et al. Conservation Status of Marine Turtles in Mozambique TABLE OF CONTENTS ABSTRACT ............................................................................................................ ii LIST OF ACRONYMS …………………………...................................................... iii INTRODUCTION ................................................................................................... 01 BRIEF DESCRIPTION OF THE MOZAMBICAN COASTAL ZONE ....................... 03 BIOLOGICAL ASPECTS .........…........................................................................... 04 THREATS ........................................................................................................... -
Towards Sustainability in World Fisheries
insight review articles Towards sustainability in world fisheries Daniel Pauly, Villy Christensen, Sylvie Guénette, Tony J. Pitcher, U. Rashid Sumaila, Carl J. Walters, R. Watson & Dirk Zeller Fisheries Centre, University of British Columbia, 2204 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4 (e-mail: [email protected]) Fisheries have rarely been ‘sustainable’. Rather, fishing has induced serial depletions, long masked by improved technology, geographic expansion and exploitation of previously spurned species lower in the food web. With global catches declining since the late 1980s, continuation of present trends will lead to supply shortfall, for which aquaculture cannot be expected to compensate, and may well exacerbate. Reducing fishing capacity to appropriate levels will require strong reductions of subsidies. Zoning the oceans into unfished marine reserves and areas with limited levels of fishing effort would allow sustainable fisheries, based on resources embedded in functional, diverse ecosystems. ishing is the catching of aquatic wildlife, the aftermath of the Second World War added another ‘peace equivalent of hunting bison, deer and rabbits on dividend’ to the industrialization of fishing: freezer trawlers, land. Thus, it is not surprising that industrial- radar and acoustic fish finders. The fleets of the Northern scale fishing should generally not be sustainable: Hemisphere were ready to take on the world. industrial-scale hunting, on land, would not be, Fisheries science advanced over this time as well: the two Feither. What is surprising rather, is how entrenched the world wars had shown that strongly exploited fish popula- notion is that unspecified ‘environmental change’ caused, tions, such as those of the North Sea, would recover most, if and continues to cause, the collapse of exploited fish not all, of their previous abundance when released from populations. -
American Fisheries Society • OCT 2013
VOL 38 NO 10 FisheriesAmerican Fisheries Society • www.fisheries.org OCT 2013 Sound Science and Future Trends An Imperative Change is Needed Scary Habitat Numbers Avoiding Bycatch Digitizing Applications for Diversity Smartphones and Digital Tablets in Fisheries Fishery-Induced Collapse of Invasive Asian Carp 03632415(2013)38(10) Fisheries VOL 38 NO 10 OCTOBER 2013 Contents COLUMNS President’s Commentary 431 We Must Do Better—We Have To Do Better The major reason I am writing this column was that I learned from one of our members who is a person of color that I was the first person to really engage him in meaningful conversation at an AFS annual meeting. Until then, he felt that he had been invisible, if not disliked, for his race. Bob Hughes, AFS President Oregon commercial salmon fisherman Kevin Bastien trying Fish Habitat Connections 455 out the at-sea SPT system developed by Lavrakas et al. (2012). 432 Scary Numbers Photo credit: John Lavrakas. We know the challenges and must now seize the opportunities to protect and restore habitats. 455 Smartphones and Digital Tablets: Emerging Tools Thomas E. Bigford for Fisheries Professionals Our handheld digital devices and fisheries. Digital Revolution Lee F. G. Gutowsky, Jenilee Gobin, Nicholas J. Burnett, 433 Hiring Tools Jacqueline M. Chapman, Lauren J. Stoot, and Shireen Bliss Finding diversity in applications for fisheries programs can be an easier fix than you may think. BOOK REVIEWS Jeff Kopaska 462 Conservation, Ecology, and Management of Director’s Line Catfish: The Second International Symposium, edited 469 Sound Science and Future Trends by P. -
Environmental Changes on Inhaca Island, Mozambique: Development Versus Degradation?
Environmental Changes on Inhaca Island, Mozambique: Development versus Degradation? Item Type Working Paper Authors Muacanhia, T. Download date 02/10/2021 14:03:19 Link to Item http://hdl.handle.net/1834/410 Environmental Changes on Inhaca Island, Mozambique: Development versus Degradation? BY: TOMÁS MUACANHIA Estação de Biologia Marítima de Inhaca, Faculdade de Ciências, Universidade Eduardo Mondlane, Caixa Postal 257, Maputo, Mozambique; e-mail: [email protected] ABSTRACT Inhaca archipelago is located ca. 32 km east of Maputo City, the capital of Mozambique. Inhaca Island (42.5 km2) and Portuguese Island (3.7 km2) constitute the small archipelago. Shoreline changes and sheet erosion are serious environmental problems affecting the archipelago today. Shorelines are constantly moving and changing. During rain season (October-March), strong winds, violent surf and stormy weather cause large powerful waves that induce changes on shorelines. As these waves pound the beach, sand erodes and is deposited offshore and the beach narrows. In dry season (April-September), waves and winds wash over the beach, bringing back the sand and gradually, the beach becomes wider. The major problems of Inhaca and Portuguese islands fringing shorelines is its dynamic environment that experience a slow or fast rate of erosion, but also, experience slow or rapid accumulation of sediment and accretion. The shoreline changes have taken place more rapidly than our understanding of the dynamic itself due to global environmental changes and human activities such as clearing of vegetation on coastal ridges for agriculture, clearing coastal forest and mangroves for housing. Furthermore, goat rearing on eastern ridge has aggravated environmental changes due to blow-up on Inhaca Island. -
MARINE BIOLOGY RESEARCH STATION MOZAMBIQUE UNIVERSITY EDUARDO MONDLANE Faculty of Sciences
INHACA MARINE BIOLOGY RESEARCH STATION MOZAMBIQUE UNIVERSITY EDUARDO MONDLANE Faculty of Sciences [email protected] www.ebmi.uem.mz Production: www.globalreporting.net, Sweden, 2016 Text: Anette Emanuelsson and David Isaksson Design: Lisa Jansson Cover photo by Jenny Stromvoll: The fishBryaninops yongei and Ciirhipathes coral Photos by David Isaksson except p. 60–61 Anette Emanuelsson, p. 14–15 Marc Montocchio, p. 17, 48 José Paula, p. 16, 34–35 Matz Berggren, p. 52, 54 Linn Bergbrant Printed by Emprint, Sweden 2016 This material/production has been financed by the Swedish International Development Cooperation Agency, Sida. Responsibility for the content rests entirely with the creator. Sida does not necessarily share the expressed views and interpretations. 2 | INHACA MARINE BIOLOGY RESEARCH STATION CONTENT Foreword ..................................................................... 4 Resumo ....................................................................... 6 A different world ........................................................ 8 Research cooperation put into practice ............... 10 A microcosm of southern Africa ............................ 14 70 years of research at Inhaca ............................... 20 Just can’t get enough .............................................. 26 Adriano Macia: Contributing to society .................... 28 Matz Berggren: Finding new species of shrimp ...... 31 Salomão Bandeira: With a passion for seagrasses 36 Perpetua Scarlet: Heavy metals under scrutiny ...... 39 Alberto Mavume: With an -
Mangroves of Maputo, Mozambique: from Threatened to Thriving?
The Plan Journal 2 (2): 629-651, 2017 doi: 10.15274/tpj.2017.02.02.21 Mangroves of Maputo, Mozambique: from Threatened to Thriving? Ana Beja da Costa, Luis Paulo Faria Ribeiro ABSTRACT - Coastal wetlands worldwide are among the most productive yet highly threatened systems in the world, and are framed and protected by the Convention on Wetlands (Ramsar, Iran, 1971), of which Mozambique is a party since 2004 (IUCN, 1971). Maputo city coastline consists of an ample alluvial plane, where large extensions of mangrove forests occur within the city, namely the Costa do Sol wetlands, offering a wide range of ecological and economical services. Here, urban development pressure is increasing and rapidly changing dynamics are creating new urban settings, pressing in ecological sensitive areas of Maputo’s coastline. The functions of the still existing ecosystems and positive effects that these can have within the urban environment are relevant to be known and investigated in light of the greenway principles. Through the landscape architecture lens, insights on the service capacity of these mangroves in terms of conservation strategies, local perception, usage and management, and design possibilities are added, which can contribute to maintain and expand the high urban quality that is historically attached to Maputo city. Keywords: coastal ecosystems, mangroves, Maputo, sustainable urban development From the very beginning of human settlements, the environment has shaped the cultural profile of those who inhabit it. On the one hand, humans have worked and molded the landscape, on the other hand, the surrounding environment has strongly shaped the way different cultures have developed (Ribeiro, 1960). -
Considering Community-Based Co-Management for Sustainable Fisheries" (2013)
Claremont Colleges Scholarship @ Claremont Pomona Senior Theses Pomona Student Scholarship 2013 A New Commons: Considering Community- Based Co-Management for Sustainable Fisheries Charlotte L. Dohrn Pomona College Recommended Citation Dohrn, Charlotte L., "A New Commons: Considering Community-Based Co-Management for Sustainable Fisheries" (2013). Pomona Senior Theses. Paper 81. http://scholarship.claremont.edu/pomona_theses/81 This Open Access Senior Thesis is brought to you for free and open access by the Pomona Student Scholarship at Scholarship @ Claremont. It has been accepted for inclusion in Pomona Senior Theses by an authorized administrator of Scholarship @ Claremont. For more information, please contact [email protected]. A NEW COMMONS: CONSIDERING COMMUNITYBASED COMANAGEMENT FOR SUSTAINABLE FISHERIES Charlotte Dohrn In partial fulfillment of a Bachelor of Arts Degree in Environmental Analysis, 2012‐13 academic year, Pomona College, Claremont, California Readers: Dr. Nina Karnovsky Dr. Heather Williams Dohrn 2 Dohrn 3 Many thanks to my readers, Nina Karnovsky and Heather Williams, for their advice, support and confidence throughout my project. It was an honor to work with both of you. Many thanks to Char Miller, for being the heart and soul of the Environmental Analysis Department, for being an incredible resource, and for the tea and “recommended” writing sessions. Many thanks to my family for listening to me ramble, helping me edit and providing love and support over the phone. Many thanks to my fellow EA majors for the laughs, late nights and moral support. Many thanks to my non‐EA friends who I will now be able to enjoy spending time with. And many, many thanks to all of the people who spoke with me and taught me about their lives during this research process. -
Marine and Coastal Cross-Cutting Workshop
Millennium Assessment update: Marine and Coastal Cross-Cutting workshop by Jackie Alder his April, the Sea Around Us Tproject hosted the Millennium Assessment’s (MA) Marine and Coastal Cross-Cutting Workshop. The workshop was the third in a series of five, designed to ensure that all facets of the MA include specific components such as marine A raven dancer greets Richard Dugdale (left) and Andrew Bakun (right) to the systems throughout. workshop. Photo by J. Alder Several coordinating and lead authors (LA) for myself participated in the from a wide range of the various chapters in the workshop and will continue expertise (and not all of MA reports attended this to contribute to the writing them of the ‘wet’ sort), was meeting to provide a of both chapters as well as smaller than the previous different perspective and furthering the scenarios two workshops, we made to help clarify questions work. significant progress on the and issues related to areas The previous two cross- writing of the marine and outside of the expertise of cutting workshops were on coastal chapters of the the marine and coastal human health issues and planned conditions and participants. biodiversity. This workshop trends report, Daniel Pauly of the Sea was the first to focus on strengthened and Around Us project is specific ecosystems – the expanded the coverage of coordinating lead author marine realm and coasts. the other chapters, and (CLA) for the Marine Despite the earth surface tuned the work of the chapter and Tundi Agardy, being 70% marine, the scenarios and responses a private consultant based world’s oceans and coasts working groups. -
Addressing Social and Economic Objectives in ITQ Fishery
ADDRESSING QUESTIONS ON THE SOCIAL AND ECONOMIC OUTCOMES OF AN INDIVIDUAL TRANSFERABLE QUOTA FISHERY by Danielle Noella Edwards BSc, The University of Victoria, 1999 MRM (Planning), Simon Fraser University, 2009 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Resource Management and Environmental Studies) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) November 2019 © Danielle Edwards, 2019 The following individuals certify that they have read, and recommend to the Faculty of Graduate and Postdoctoral Studies for acceptance, the dissertation entitled: Addressing Questions on the Social and Economic Outcomes of an Individual Transferable Quota Fishery submitted by Danielle Noella Edwards in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Faculty of Graduate and Postdoctoral Studies (Resource Management and Environmental Studies) Examining Committee: Dr. Villy Christensen Co-supervisor Dr. Evelyn Pinkerton Co-supervisor Dr. Ussif Rashid Sumaila Supervisory Committee Member Dr. Dianne Newell University Examiner Dr. Wei Cui University Examiner ii Abstract In Canada, fisheries are expected to contribute to prosperous coastal communities and the maintenance of stable and viable fishing fleets, alongside other objectives that include conservation and complying with legal obligations to Indigenous Peoples. Individual transferable quotas (ITQs) have been promoted as a management approach to improve the conservation and economic outcomes of fisheries. The use of ITQs in British Columbia (BC) groundfish fisheries is widespread, following successive introductions of ITQs into the fisheries since 1990. There has been no comprehensive evaluation of the social and economic outcomes of ITQ management in the BC fisheries during this time, despite more than a decade of fishery participants and Indigenous and coastal community representatives raising concerns about the negative impacts of quota ownership and leasing. -
Chemical Analysis of Seaweeds from Inhaca Island, Mozambique. Valera
Chemical analysis of seaweeds from Inhaca Island, Mozambique. Valera Dias (presenting author) Eduardo Mondlane University, Department of Biological Sciences – Maputo. Marcelino Rovissene Eduardo Mondlane University, School of Marine and Coastal Science – Quelimane. BACKGROUND: In recent years, marine resources have been tested to find potential compounds for the development of chemotherapeutic agent (Agatonovic-Kustrin et al., 2013). Of the marine resources already tested, seaweeds are known as rich in compounds such as polyssacharides, carotenoid, terpenoids, fatty acids as well as minerals and vitamins (Pérez et al., 2016), and researches suggest seaweeds as a promising resources to provide novel biochemically active substances (Taskin et al., 2007). Despite the broad application of seaweed in medicine, in Asia, Europe, America and Africa (Osman et al., 2013; Shanmugam et al., 2013; Tanniou et al., 2014), this resource in under exploited by the Mozambican communities. There are nearly 300 species of seaweeds that have been registered in Mozambique (Bandeira, 1998). However, to the best of our knowledge there is no scientific information in Mozambique reporting the chemical characterization and application of seaweeds. Therefore, the objective of this study is to investigate the level of polysaccharides, fatty acids and minerals of seaweeds that occur in Inhaca Island. This finding would be important for further application of this resources in the diet of human and other organism. The need to incorporate functional natural products in foods for animals and human, is a challenge to overcome (Pereira, 2015). METHODS: this study consisted in the identification and quantification of target species in Inhaca Island, sampling and further laboratorial analysis of phytochemical composition (polysaccharides, lipids and minerals). -
Trade-Offs in Ecosystem-Scale Optimization of Fisheries Management Policies
BULLETIN OF MARINE SCIENCE, 74(3): 549–562, 2004 MOTE SYMPOSIUM INVITED PAPER TRADE-OFFS IN ECOSYSTEM-SCALE OPTIMIZATION OF FISHERIES MANAGEMENT POLICIES Villy Christensen and Carl J. Walters ABSTRACT Recent applications of ecosystem models have had some apparent success evaluating how fisheries and environmental changes have affected marine populations, and a stage has been reached where ecosystem models can be used to describe agents of mortality and trophic interdependencies in the marine environment with some credibility. This success has raised the stakes for modeling and caused its focus to evolve to include eco- system-scale optimization policies aimed, modestly, at determining the mix of fishing fleets that will optimize a combination of objectives, subject to the assumptions inher- ent in the model—as is the case with all models. A resemblance between our model predictions and real-world conditions may indicate that trade-offs among economic, social, and ecosystem objectives resulting from optimization for fleet configurations are more pronounced than hitherto recognized. The present paper reports the consequences of such optimizations for a model meant to mimic aspects of the Gulf of Thailand ecosystem, intended to determine how the model reacts to different weightings for the objective functions individually and jointly to examine the trade-offs involved. The results indicate that optimizing for economic profit is consistent with including ecosys- tem considerations, whereas optimizing landed value is in conflict with profit as well as ecosystem optimization. A number of recent studies (e.g., FAO/FISHCODE, 2001; Cox et al., 2002; Martell, 2002; Martell et al., 2002; Polovina, 2002; Stanford, 2002; Cox and Kitchell, this issue; Martell and Walters, this issue) have used ecosystem models and time-series data to evaluate the degree to which ecosystem changes over time could be attributed to fisher- ies and/or environmental changes. -
Xianshi Jin and Xiujuan Shan
PICES 2015 Annual Meeting, Qingdao, China The marine fisheries resource utilization, ecosystem impacts and fisheries management in China Xianshi Jin & Xiujuan Shan Yellow Sea Fisheries Research Institute, CAFS [email protected] Nature, VOL 414.2011 Nature, news, 2011 Over- reported China coastal fisheries; 4.6 million tons per year Towards sustainability Under -reported China in world fisheries distant-water fisheries; Daniel Pauly, Villy Christensen, Sylvie Guénette, Tony J. Pitcher, U. Rashid Sumaila, Carl J. Walters, R. Watson & Dirk Zeller Misunderstanding Positive OR Negative Science, 2015 What is the truth of China fisheries? Goal of this presentation What is the truth of China fisheries? What are current and expected ecosystem impacts? What mitigation actions are in the fisheries management? What is the truth of China fisheries? What is the current status of fisheries? 2014 (Tons) • Total:64.61 million • Marine capture: 14.827 million (12.80 million +2.027 million) • Mariculture:18.12 million • Freshwater culture:29.35 million • Freshwater capture:2.295 million Freshwa Freshwa Marine Mari- ter ter Year fisheries culture Fisheries culture 1950s 60.2 5.5 21.6 14.2 1960s 63.0 6.4 16.2 14.4 1970s 66.4 11.0 7.5 15.0 1980s 50.6 16.6 6.6 26.2 1990s 39.7 22.9 5.5 31.9 2000s 29.1 26.9 4.9 39.1 2010s 23.5 27.8 4.0 44.5 Landings/catch data? Low trophic level Discard (developed countries) --30%, harvest FAO; phyto ---seaweeds No discard in China, Zoo- Acetes shrimps, and the catch data jellyfish also included Acetes mollusks (shellfishs, shrimps, shellfish, squids) jellyfish, algae.