• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 62
  • 51
  • 9
  • 2
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 150
  • 150
  • 42
  • 35
  • 32
  • 32
  • 32
  • 29
  • 22
  • 21
  • 21
  • 16
  • 15
  • 15
  • 14
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

Living and fishing in a marine protected area : balancing traditional fisheries with conservation in Karimunjawa National Park, Indonesia

Maillet, Gilles 08 1900 (has links)
Cette recherche a porté sur quelques enjeux importants liés à la gestion des aires marines protégées (AMP) en Indonésie en examinant comment celles-ci sont en mesure d'adapter leurs politiques afin de mieux répondre à l'évolution des conditions socioéconomiques et écologiques, quels ont été les impacts socioéconomiques de ces aires, et quelles sont les préoccupations environnementales des acteurs locaux dont les moyens de subsistance dépendent des ressources règlementées. Le «livelihoods framework » a servi de guide pour notre analyse des changements socioéconomiques dans la région, tandis que la notion d’« environmentality » d’Agrawal a fourni les bases théoriques pour l'examen de la formation de sujets environnementaux au parc national de Karimunjawa. Cette étude a montré que les changements de politique apportés au plan de la gestion du parc sont un pas dans la bonne direction, mais que les objectifs importants liés sa cogestion n'ont jamais été entièrement réalisés dans la pratique. Les résultats montrent également que d'importants changements socioéconomiques surviennent dans le parc, de nombreux pêcheurs se tournent vers des moyens de subsistance alternatifs, afin de compenser la baisse des prises de poissons. Enfin, cette étude a révélé que d'importants changements positifs dans les préoccupations environnementales sont survenus depuis la modification du zonage du parc, mais que ceux-ci ne se sont pas entièrement traduits en conformité avec les règles et règlements de l'AMP. / This research examined a few important issues related to marine protected area (MPA) management in Indonesia by looking at how MPAs are able to adapt their policies in order to better suit evolving socioeconomic and ecological conditions, what socioeconomic impacts have been felt as a result of MPA implementation, and what are the environmental subjectivities of local actors whose livelihoods are dependent on the resources that are being regulated. The livelihoods framework served as a guide when examining local socioeconomic changes in the region, while Agrawal’s concept of environmentality provided the theoretical underpinnings when examining the formation of environmental subjects in Karimunjawa National Park. This study found that the policy changes brought about in KNP’s reworked management plan are a step in the right direction, but that important goals related to park co-management were never fully realized in practice. The results also show that significant socioeconomic changes are occurring within the park, with many fishermen turning to alternative livelihoods in order to offset declining fish catches. Lastly, this study uncovered that significant positive shifts in environmental subjectivities have occurred since the re-zoning of the park, but that these have not fully translated into compliance towards the rules and regulations of the MPA.
142

Social learning as a process to foster Integrated Coastal Management / Aprendizagem social como um processo para promover a gestão costeira integrada

Xavier, Luciana Yokoyama 04 May 2017 (has links)
Integrated coastal and ocean management (ICM) requires new management systems where social learning (SL), the joint and collaborative learning trough interaction, is a key element. The occurrence of SL and the factors that affect it were investigated by documentary analysis, observation of ongoing processes and accessment of the perception of people involved with the participatory management of a marine protected area (MPA) in Brazil. The general hypothesis is that SL can qualify participation and improve ICM. To test it, this research characterized the management of the MPA, identifying SL processes and how they were fostered/hindered, with special attention to the role of research and educational institutions and the promotion of knowledge exchange. SL was evidenced by changes in knowledge, perception of the complexity of the system, social context and in the development of new understandings among the stakeholders involved in the processes, leading to strong social organization, social empowerment and institutional changes, promoting social capital. To improve ICM through SL, five strategies are proposed: promote diverse participation, not limited to official membership; promote simultaneous discussions in small groups; favor interaction processes over rapid solutions; explore common interests; explore different roles, especially with reference to research and educational organizations. / A gestão costeira integrada (GCI) demanda novos sistemas de gestão onde a aprendizagem social (AS), a aprendizagem conjunta e colaborativa que ocorre por meio de interação, é um elemento-chave. A ocorrência de AS e os fatores que a afetam foram investigados por meio de análise documental, observação de processos em andamento e levantamento da percepção dos indivíduos envolvidos com a gestão participativa de uma área marinha protegida (AMP) no Brasil. A hipótese central é que AS pode qualificar a participação e aprimorar a GCI. Esta pesquisa caracterizou a gestão da AMP e identificou processos de AS e como eles foram favorecidos/prejudicados, com atenção especial ao papel de instituições de ensino e pesquisa e à promoção de troca de conhecimento. A AS foi evidenciada por mudanças no conhecimento, percepção da complexidade do sistema, contexto social e construção de entendimentos coletivos, fortalecendo a organização social, empoderamento social e mudanças institucionais, promovendo o capital social. Para aprimorar a GCI por meio de AS são propostas cinco estratégias: promover diversidade de participação; promover a discussão simultânea de vários problemas; favorecer processos de interação à soluções rápidas; explorar interesses comuns; explorar diferentes papéis, especialmente considerando as organizações de ensino e pesquisa.
143

Social learning as a process to foster Integrated Coastal Management / Aprendizagem social como um processo para promover a gestão costeira integrada

Luciana Yokoyama Xavier 04 May 2017 (has links)
Integrated coastal and ocean management (ICM) requires new management systems where social learning (SL), the joint and collaborative learning trough interaction, is a key element. The occurrence of SL and the factors that affect it were investigated by documentary analysis, observation of ongoing processes and accessment of the perception of people involved with the participatory management of a marine protected area (MPA) in Brazil. The general hypothesis is that SL can qualify participation and improve ICM. To test it, this research characterized the management of the MPA, identifying SL processes and how they were fostered/hindered, with special attention to the role of research and educational institutions and the promotion of knowledge exchange. SL was evidenced by changes in knowledge, perception of the complexity of the system, social context and in the development of new understandings among the stakeholders involved in the processes, leading to strong social organization, social empowerment and institutional changes, promoting social capital. To improve ICM through SL, five strategies are proposed: promote diverse participation, not limited to official membership; promote simultaneous discussions in small groups; favor interaction processes over rapid solutions; explore common interests; explore different roles, especially with reference to research and educational organizations. / A gestão costeira integrada (GCI) demanda novos sistemas de gestão onde a aprendizagem social (AS), a aprendizagem conjunta e colaborativa que ocorre por meio de interação, é um elemento-chave. A ocorrência de AS e os fatores que a afetam foram investigados por meio de análise documental, observação de processos em andamento e levantamento da percepção dos indivíduos envolvidos com a gestão participativa de uma área marinha protegida (AMP) no Brasil. A hipótese central é que AS pode qualificar a participação e aprimorar a GCI. Esta pesquisa caracterizou a gestão da AMP e identificou processos de AS e como eles foram favorecidos/prejudicados, com atenção especial ao papel de instituições de ensino e pesquisa e à promoção de troca de conhecimento. A AS foi evidenciada por mudanças no conhecimento, percepção da complexidade do sistema, contexto social e construção de entendimentos coletivos, fortalecendo a organização social, empoderamento social e mudanças institucionais, promovendo o capital social. Para aprimorar a GCI por meio de AS são propostas cinco estratégias: promover diversidade de participação; promover a discussão simultânea de vários problemas; favorecer processos de interação à soluções rápidas; explorar interesses comuns; explorar diferentes papéis, especialmente considerando as organizações de ensino e pesquisa.
144

Living and fishing in a marine protected area : balancing traditional fisheries with conservation in Karimunjawa National Park, Indonesia

Maillet, Gilles 08 1900 (has links)
Cette recherche a porté sur quelques enjeux importants liés à la gestion des aires marines protégées (AMP) en Indonésie en examinant comment celles-ci sont en mesure d'adapter leurs politiques afin de mieux répondre à l'évolution des conditions socioéconomiques et écologiques, quels ont été les impacts socioéconomiques de ces aires, et quelles sont les préoccupations environnementales des acteurs locaux dont les moyens de subsistance dépendent des ressources règlementées. Le «livelihoods framework » a servi de guide pour notre analyse des changements socioéconomiques dans la région, tandis que la notion d’« environmentality » d’Agrawal a fourni les bases théoriques pour l'examen de la formation de sujets environnementaux au parc national de Karimunjawa. Cette étude a montré que les changements de politique apportés au plan de la gestion du parc sont un pas dans la bonne direction, mais que les objectifs importants liés sa cogestion n'ont jamais été entièrement réalisés dans la pratique. Les résultats montrent également que d'importants changements socioéconomiques surviennent dans le parc, de nombreux pêcheurs se tournent vers des moyens de subsistance alternatifs, afin de compenser la baisse des prises de poissons. Enfin, cette étude a révélé que d'importants changements positifs dans les préoccupations environnementales sont survenus depuis la modification du zonage du parc, mais que ceux-ci ne se sont pas entièrement traduits en conformité avec les règles et règlements de l'AMP. / This research examined a few important issues related to marine protected area (MPA) management in Indonesia by looking at how MPAs are able to adapt their policies in order to better suit evolving socioeconomic and ecological conditions, what socioeconomic impacts have been felt as a result of MPA implementation, and what are the environmental subjectivities of local actors whose livelihoods are dependent on the resources that are being regulated. The livelihoods framework served as a guide when examining local socioeconomic changes in the region, while Agrawal’s concept of environmentality provided the theoretical underpinnings when examining the formation of environmental subjects in Karimunjawa National Park. This study found that the policy changes brought about in KNP’s reworked management plan are a step in the right direction, but that important goals related to park co-management were never fully realized in practice. The results also show that significant socioeconomic changes are occurring within the park, with many fishermen turning to alternative livelihoods in order to offset declining fish catches. Lastly, this study uncovered that significant positive shifts in environmental subjectivities have occurred since the re-zoning of the park, but that these have not fully translated into compliance towards the rules and regulations of the MPA.
145

Interfaces da gestão integrada de recursos hídricos - estudo de caso: o baixo curso do Rio Paraíba e sua zona costeira. / Interfaces of the integrated management of water resources - a case study: the low course of the Paraíba River and its coastal zone.

REGO FILHO, Marco Tulio do Nascimento. 19 April 2018 (has links)
Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-04-19T20:41:53Z No. of bitstreams: 1 MARCO TULIO DO NASCIMENTO REGO FILHO - DISSERTAÇÃO PPGECA 2014..pdf: 1792077 bytes, checksum: 78b90074ea31484e0734978e3de714be (MD5) / Made available in DSpace on 2018-04-19T20:41:53Z (GMT). No. of bitstreams: 1 MARCO TULIO DO NASCIMENTO REGO FILHO - DISSERTAÇÃO PPGECA 2014..pdf: 1792077 bytes, checksum: 78b90074ea31484e0734978e3de714be (MD5) Previous issue date: 2014-02 / Capes / A Política Nacional de Recursos Hídricos, Lei n° 9.433/97, e o Plano Nacional de Gerenciamento Costeiro, Lei n° 7.661/88 e Decreto Federal n° 5.300/04, estabelecem entre suas diretrizes a necessidade de integração da gestão de recursos hídricos com o gerenciamento costeiro. Diante disso, o Conselho Nacional de Recursos Hídricos criou a Câmara Técnica de Integração da Gestão de Bacias Hidrográficas e dos Sistemas Estuarinos e Zona Costeira, que objetiva analisar e propor mecanismos de integração das mencionadas políticas, visando a minimização ou solução de conflitos de uso de recursos hídricos em ambiente costeiro. A inerente complexidade da interação entre as bacias hidrográficas e zonas costeiras e os múltiplos usos da água a montante da zona costeira da bacia, que reduzem a afluência e, consequentemente, a disponibilidade de água doce na região costeira, além de poderem provocar alterações no leito dos rios na faixa costeira devido a deposição de sedimentos bem como alterações na flora e fauna dessas regiões, tornam prementes estudos que contemplem estas interações. Como estudo de caso, foi escolhida a Região do Baixo Curso da bacia hidrográfica do rio Paraíba, em função de conflitos relacionados aos múltiplos usos da água, bem como alterações no leito do rio. Objetiva-se compor um diagnóstico situacional que subsidie ações para minimizar ou solucionar os conflitos existentes, face a aplicação integrada dos vários instrumentos de gestão. Com uma abordagem qualitativa baseada no método dedutivo, utilizando-se da pesquisa bibliográfico-documental como base exploratória, faz-se uma análise das interfaces legais e institucionais, destacando as articulações operacionais possíveis entre os instrumentos de planejamento e gestão. A análise de compatibilidade, entre os instrumentos de gestão da PNRH e do PNGC, demonstra que a articulação é possível. Recomenda-se ao setor competente do estado da Paraíba, a elaboração do Plano de Gestão da Zona Costeira e o Zoneamento Ecológico-Econômico Costeiro, articulados com o Plano Estadual de Recursos Hídricos e o Plano da Bacia Hidrográfica do rio Paraíba. A partir deste, o Comitê da Bacia e a Comissão de Gerenciamento Costeiro deverão articular ações, visando a conservação e a resolução de conflitos derivados dos múltiplos usos da água. Conclui-se que o processo de integração entre a gestão de recursos hídricos e o gerenciamento da zona costeira envolve a descentralização do poder de gestão, a participação da sociedade civil e usuários, e a harmonização e inter-relação dos instrumentos da gestão de recursos hídricos com o do gerenciamento costeiro, bem como depende de uma coordenação entre os níveis federal, estadual e municipal, e que cada qual tem interesse e formas de contribuir para essa integração. / The National Water Resources Policy, Law 9.433/97, the National Coastal Management Plan, Law 7.661/88 and Federal Decree 5.300/04, establish, among their guidelines, the need for integration of water management with coastal management. Thus, the National Water Resources Council established the Technical Chamber of Integration of the Watershed Management and Estuarine and Coastal Zone Systems, which aims to analyze and propose mechanisms for the integration of the above policies, aimed at minimizing or solving conflicts of water resources use in the coastal environment. The inherent complexity of the interaction between watersheds and coastal areas and the multiple uses of water from upstream of the coastal zone of the basin, which reduce the rivers flow and, consequently, the availability of fresh water in the coastal region, may cause changes in the rivers bed of the coastal zone due to sediment deposition as well as changes in the flora and fauna of these regions demand continuous studies that address these interactions. As a case study, it was chosen the region of the lower course of the Paraiba river basin in reason of the water conflicts from the multiple uses of water as well as changes in the river bed. The objective is to compose a situational diagnosis to subsidize actions to minimize or solve the existent conflicts, given the application of different management and integrated tools. With a qualitative approach based on deductive method, utilizing the bibliographic and documentary research as an exploratory basis, an analysis of the legal and institutional interfaces is made, highlighting the possible operational links between the instruments of planning and management. The analysis of compatibility between management tools of the PNRH and PNGC, demonstrates that the linking between them is possible. It is recommended to the competent sector of the Paraíba state to provide the preparation of a Management Plan Coastal Zone and Coastal Ecological - Economic Zoning, articulated with the State Water Resources Plan and Plan Basin of the Paraíba River. From this, the committee of the Paraíba river basin and Coastal Management Commission shall coordinate actions in order to preserve the environment and provide the solution of conflicts arising from the multiple uses of water. It is concluded that process of integration between water management and coastal zone management involves the decentralization of power management, the participation of civil society and users, and the harmonization and inter-relationship of the components of water resources management with the coastal management and depends on coordination between federal, state and municipal levels, and each one has its own particular interests and ways to contribute to this integration.
146

A retrospective assessment of the Port Alfred linefishery with respect to the changes in the South African fisheries management environment

Donovan, Bruce 18 July 2013 (has links)
Since the study on the Port Alfred/Kenton-on-Sea/Boknes linefishery by Hecht and Tilney (1989) there have been substantive changes to the linefish management environment in South Africa. Using the Port Alfred linefishery as a model, the aim of this study was to evaluate the effectiveness of the linefish management regulations that were implemented by Marine and Coastal Management (MCM) since 1992, and to assess the behaviour and 'status' of the fishery in response to these changes. Changes to both the licensing structure and catch regulations have had a significant effect on the functioning of many aspects of the Port Alfred linefishery (fishing effort, catch composition, cpue) as well as on the structure of the fishery and its socio-economic profile. Overall commercial cpue decreased from 1985 to 1998. Since 1998 there has been a significant increase in cpue (from 2.3 Kg.fisher⁻¹ hour⁻¹ to a peak of 4.8 Kg.fisher⁻¹.hour⁻¹ in 2005. This was attributed to good catches of geelbek, particularly in 2005, 2007 and 2008 (during these years geelbek contributed an average of 35% to the total landings in comparison to a mean contribution of II % between 1985 and 2004). However, size spectra analysis suggests that the increase in overall cpue since 1998 misrepresents the actual status of the fishery. If geelbek is excluded from the analysis on the grounds that it is the only species in the fishery that is highly migratory, susceptible to recruitment fluctuations and it does not contribute to the catches on a year round basis, then the results suggest that the fishery is still in a declining phase despite the 80% reduction in commercial effort and numerous stricter catch regulations (e.g. size/bag limits). Furthermore, the cpue of silver kob, which has been the "mainstay" species of the fishery, has consistently declined over the last 23 year period (from 1.69 Kg.fisher⁻1 .hour1 in 1986 to 0.86 Kg.fisher⁻1.hour⁻1in 2007). The substantial reduction in commercial effort in the fishery from 33 vessels in 2001 to 13 in 2002 resulted in a shift from commercial to recreational fishing. The number of active commercial vessels in Port Alfred alone decreased from 29 in 1989 (Hecht 1993) to four in 2008. During the same timeframe, the number of regularly active recreational vessels had almost doubled (16 in 1989 to 26 in 2008). Despite the greater number of recreational boats in the fishery they only landed approximately half the average yearly tonnage of the commercial vessels (21,5 and 44,7 tonnes,annum-I , respectively) between 2006 and 2008, This was ascribed to the differences in catch regulations for the two sectors, Furthermore, it was speculated that increasing operating costs and narrowing profit margins have contributed to lower levels of compliance in both the commercial and recreational sectors since 2006, For example, 16% of silver kob landed during 2006-08 were under the minimum size, Despite the changes made to the regulations since 1998 and the 60,6% reduction In legislated commercial effort in the fishery between 2001 and 2002 it was concluded that the fishery has continued to decline, Except for the good recruitment of geelbek (which may be due to regulatory changes made in 1992) the changes in the management environment have had no measurable positive effect on this fishery, It is recommended that commercial effort should not be allowed to increase beyond the current number of active boats, that there should be an area restriction on all commerciallinefish vessels, that the current recreational bag limit for silver kob should be re-assessed, there should also be a concerted and nationally funded effort to educate recreational anglers about the merits of catch and release, and the frequency of catch inspections of both sectors should be increased, / KMBT_363 / Adobe Acrobat 9.54 Paper Capture Plug-in
147

L'évaluation économique des services écosystémiques marins et côtiers et son utilisation dans la prise de décision : cas d'étude en Nouvelle-Calédonie et en Australie / Quantifying economic values of coastal and marine ecosystem services and assessing their use in decision-making : applications in New-Caledonia and Australia

Marre, Jean-Baptiste 30 September 2014 (has links)
No abstract. / Coastal and marine ecosystems are some of the most heavily exploited with increasing degradation. This alarming situation appeals for urgent and effective actions. The optimal balance between use and conservation of ecosystems theoretically requires all costs and benefits to be considered in decision-making, including intangible costs and benefits such as non-market use and non-use values. The broad aim of this PhD is to examine how these economic values associated with coastal and marine ecosystem services can be measured, and how the economic valuation exercise may be considered and influence management decision- making.The first analytical part of the thesis focuses on assessing non-market use and non-use values, through econometric methods. The characterization and estimation of non-use values are complex and controversial, especially when the valuation exercise is focusing on individuals who are users of the ecosystem services being considered. An original approach based on a stated preference method, namely choice experiments, is developed then empirically applied in quantifying non-market values for marine and coastal ecosystems in two areas in New Caledonia. It allows the estimation of non-use values for populations of users in an implicit way. An in-depth analysis of the individuals’ choice heuristics during the valuation exercise is also conducted, with a focus on payment non-attendance. This issue is dealt with by comparing multiple modelling approaches in terms of: (1) inferred attendance, in relation to stated attendance; (2) attendance distribution according to several socio-economic variables; and (3) welfare estimates.After noting that the potential influence of economic valuation in decision making is unclear and largely unexplored in the literature, the second major component of this PhD aims to examine if, how and to what extent the economic valuation of ecosystem services, including measures of non-market values, influence decision-making regarding coastal and marine ecosystems management in Australia. Based on two nation-wide surveys, the perceived usefulness of the economic valuation of ecosystem services by the general public and decision-makers is studied, and the reasons why decision-makers may or may not fully consider economic values are elicited. Using a multi-criteria analysis, a part of the surveys also aims at examining the relative importance of different evaluation criteria (ecological, social and economic) when assessing the consequences of a hypothetical coastal development project on commercial activities, recreational activities and marine biodiversity.
148

The illegal exploitation of certain marine species as a form of environmental crime in the Western Cape

Herbig, Friedo Johann Willem 25 August 2009 (has links)
Conservation criminology as a derivative of environmental criminology is considered in this dissertation through a strategic/empirical investigation of the illegal exploitation of a cross-section of certain, essentially fiscally attractive marine resources, as a form of environmental crime in the Western Cape province. Through primarily qualitative and quantitative interviewing techniques, augmented by the application of a survey questionnaire, significant and pragmatic insight was obtained from knowledgeable functionaries. The study elucidates the purview and dynamics of the marine crime phenomenon by focussing specifically on issues such as modus operandi, crime scenes, causation, operational efficacy, and social/biological repercussions. Deficient policing capacity and concomitant lack of deterrence, compounded by institutional limitations, emerge as fundamental proclivities impeding proficient marine resource conservation. It is envisaged that this study will broaden the frontiers of marine crime knowledge, contributing not only to the implementation of effective mitigation programmes but also to enriching the criminological discipline as a whole. / Criminology / M.A. (Criminology)
149

The illegal exploitation of certain marine species as a form of environmental crime in the Western Cape

Herbig, Friedo Johann Willem 25 August 2009 (has links)
Conservation criminology as a derivative of environmental criminology is considered in this dissertation through a strategic/empirical investigation of the illegal exploitation of a cross-section of certain, essentially fiscally attractive marine resources, as a form of environmental crime in the Western Cape province. Through primarily qualitative and quantitative interviewing techniques, augmented by the application of a survey questionnaire, significant and pragmatic insight was obtained from knowledgeable functionaries. The study elucidates the purview and dynamics of the marine crime phenomenon by focussing specifically on issues such as modus operandi, crime scenes, causation, operational efficacy, and social/biological repercussions. Deficient policing capacity and concomitant lack of deterrence, compounded by institutional limitations, emerge as fundamental proclivities impeding proficient marine resource conservation. It is envisaged that this study will broaden the frontiers of marine crime knowledge, contributing not only to the implementation of effective mitigation programmes but also to enriching the criminological discipline as a whole. / Criminology and Security Science / M.A. (Criminology)
150

Oceanographic Considerations for the Management and Protection of Surfing Breaks

Scarfe, Bradley Edward January 2008 (has links)
Although the physical characteristics of surfing breaks are well described in the literature, there is little specific research on surfing and coastal management. Such research is required because coastal engineering has had significant impacts to surfing breaks, both positive and negative. Strategic planning and environmental impact assessment methods, a central tenet of integrated coastal zone management (ICZM), are recommended by this thesis to maximise surfing amenities. The research reported here identifies key oceanographic considerations required for ICZM around surfing breaks including: surfing wave parameters; surfing break components; relationship between surfer skill, surfing manoeuvre type and wave parameters; wind effects on waves; currents; geomorphic surfing break categorisation; beach-state and morphology; and offshore wave transformations. Key coastal activities that can have impacts to surfing breaks are identified. Environmental data types to consider during coastal studies around surfing breaks are presented and geographic information systems (GIS) are used to manage and interpret such information. To monitor surfing breaks, a shallow water multibeam echo sounding system was utilised and a RTK GPS water level correction and hydrographic GIS methodology developed. Including surfing in coastal management requires coastal engineering solutions that incorporate surfing. As an example, the efficacy of the artificial surfing reef (ASR) at Mount Maunganui, New Zealand, was evaluated. GIS, multibeam echo soundings, oceanographic measurements, photography, and wave modelling were all applied to monitor sea floor morphology around the reef. Results showed that the beach-state has more cellular circulation since the reef was installed, and a groin effect on the offshore bar was caused by the structure within the monitoring period, trapping sediment updrift and eroding sediment downdrift. No identifiable shoreline salient was observed. Landward of the reef, a scour hole ~3 times the surface area of the reef has formed. The current literature on ASRs has primarily focused on reef shape and its role in creating surfing waves. However, this study suggests that impacts to the offshore bar, beach-state, scour hole and surf zone hydrodynamics should all be included in future surfing reef designs. More real world reef studies, including ongoing monitoring of existing surfing reefs are required to validate theoretical concepts in the published literature.

Page generated in 0.318 seconds