Spelling suggestions: "subject:"burnishing"" "subject:"mashishing""
841 |
A Comunidade Ribeira da Barca, Ilha de Santiago, Cabo Verde: experiências de cooperativa e estratégias em busca do bem viverPinto, Admilson Robalo de Brito Xavier 07 April 2017 (has links)
Submitted by Kenia Bernini (kenia.bernini@ufpel.edu.br) on 2017-06-08T20:30:40Z
No. of bitstreams: 2
license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Admilson_Robalo_ Brito_Xavier_Pinto_Dissertação.pdf: 9721285 bytes, checksum: 2ddd807be9fd74fa9c827a6bab1b0472 (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-06-09T11:39:51Z (GMT) No. of bitstreams: 2
Admilson_Robalo_ Brito_Xavier_Pinto_Dissertação.pdf: 9721285 bytes, checksum: 2ddd807be9fd74fa9c827a6bab1b0472 (MD5)
license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-06-09T11:43:32Z (GMT) No. of bitstreams: 2
Admilson_Robalo_ Brito_Xavier_Pinto_Dissertação.pdf: 9721285 bytes, checksum: 2ddd807be9fd74fa9c827a6bab1b0472 (MD5)
license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-06-09T11:43:46Z (GMT). No. of bitstreams: 2
Admilson_Robalo_ Brito_Xavier_Pinto_Dissertação.pdf: 9721285 bytes, checksum: 2ddd807be9fd74fa9c827a6bab1b0472 (MD5)
license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Previous issue date: 2017-04-07 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / A presente dissertação de mestrado apresenta um estudo histórico e antropológico sobre cooperativismo e as estratégias de luta pelo bem viver na comunidade pesqueira de Ribeira da Barca, localizada na Ilha de Santiago, arquipélago de Cabo Verde. O objetivo geral do trabalho é compreender a organização desta comunidade com vistas a entender qual seria o bem viver a que ela aspira. Para este propósito, o estudo traz para a discussão o conceito de colonialidade do poder, dentre outros, que transcende as particularidades do colonialismo histórico português e que não desaparece com a descolonização oficial. Este conceito é recorrente em estudos sobre comunidades indígenas do continente americano e constitui-se, pois, em uma tentativa de explicar a modernidade como um processo intrinsecamente vinculado à experiência colonial. Atualmente, Cabo Verde tem sido refém do sistema-mundo e da dependência econômica do exterior, o que obriga o Estado a assinar protocolos e parcerias que visam atingir o desenvolvimento do país. Tais parcerias nem sempre satisfazem a necessidade da maioria da população nacional, como verificado na comunidade pesqueira de Ribeira da Barca, localizada na Ilha de Santiago, sobretudo por conta de um acordo sobre o domínio de pesca, assinado entre Cabo Verde e a União Europeia. Neste caso, em particular, verificou-se que a população local enfrenta muitas dificuldades de natureza socioeconômica e procura sobreviver por meio da ajuda mútua. Desse modo, surge uma forma de sociabilidade marcada pela solidariedade e busca pelo bem viver, observado na expressão “vivi dreto”, típica do crioulo cabo-verdiano, a qual tem a ver com uma alternativa à ideia de desenvolvimento convencional. Para tanto, são necessárias respostas políticas que possibilitem a cultura do estar em harmonia em detrimento da civilização do viver melhor. Trata-se de construir uma sociedade solidária e sustentável, visto que o bem viver sinaliza uma ética de suficiência para toda a comunidade e não somente para o indivíduo / Es dissertason di mestrado é um estudo stórico e antropológico sobre cooperativismu e stratégia de luta pá vivi dreto, na komunidade peskeira de Rubera da Barka, ki ta fica na Ilha de Santiago, arkipélagu de Kabu Verde. É tem como objetivo geral compreendi organizason di komunidade, ku ideia na entendi kuse ki é vivi dreto pa guentis de komunidade. Na kel studo li fazedu um discuson di conceito de colonialidade do poder, ki ta transcendi particularidadi di colonialismo storico portugês e que ki ka ta desapareci ku descolonizason oficial. Es conceito é recorrente em studos sobre komunidades indígenas na kontinente mercano e é ta constitui, um tentativa de esplica modernidadi como um processo ki sta ligado à experiência colonial. Atualmenti, Kabu Verde tem stado refém di sistema-mundo keli é pamode é ta dependi ekonômicamente di esterior, o ki ta obriga Estado a assina protocolus e parcerias ki ta visa atingi desenvolvimento di país. Kes parcerias nem sempri ta satisfaze necessidadi di maioria di populason nacional. Sima verificadu na komunidade pesqera de Rubera da Barka, localizado na Ilha de Santiago, sobretudo pamodi um acordo di pesca, assinado entre Kabo Verde ku União Europeia. Nes caso, em particular, populason local sa enfrenta tcheu dificuldades sócio-econômico e es ta procura sobrevivi graça a djunta-mo. Assi surgi um forma de sociabilidadi marcadu pá solidariedadi, na busca di vivi dreto. Es forma di bida é um alternativa à ideia de desenvolvimentu convencional. Ma pes pode, vivi dreto é necessário tem respostas políticas ki ta possibilitas vivi assi. Es pratica ta trata di construi um sociedade solidário e sustentável, pamode vivi dreto ta busca um ética de suficiência pá todo Komunidade e non somenti pá un alguem / his dissertation presents a historical and anthropological study about the cooperativism and the strategies of struggle for the live well in the fishing community of Ribeira da Barca, in Santiago island, archipelago of Cape Verde. The general objective of the work is to comprehend the organization of this community in order to understand which live well they wish for. For this reason, this study brings to discussion the concept of coloniality of the power, among others, that transcends the particularities of the Portuguese historical colonialism and that does not disappear with the official decolonization. This concept is recurrent in studies about indigenous communities of the American continent and it consists of an attempt to explain the modernity as a process intrinsically connected to the colonial experience. At present, Cape Verde has been hostage of the world-system and the economic dependence from abroad, which forces the state to sign protocols and partnerships that aim to achieve the development of the country. Such partnerships do not always satisfy the needs of the majority of the national population, as verified in the fishing community of Ribeira da Barca, in Santiago island, specially because of the agreement on the fishing domain, signed between Cape Verde and the European Union. In this case, in particular, it was verified that the local population deals with many socio-economic difficulties and tries to survive through mutual help. In consequence, a form of sociability emerges marked by the solidarity and the search for living well, observed in the expression “vivi dreto”, typical from the Cape Verdean creole, which is related to the alternative of the idea of conventional development. Therefore, political answers are necessary to enable the culture of being in harmony, preferring this over the civilization of better living. It talks about building a solidary and sustainable society, considering that the live well indicates an ethic of sufficiency for the whole community not only for the individua
|
842 |
O conhecimento ecológico local dos pescadores de Ubatuba, litoral norte do estado de São Paulo, como subsídio ao manejo pesqueiro com enfoque ecossistêmico / The local ecological knowledge of fishers from Ubatuba, São Paulo State northern coast (Brazil), as a contribution to ecosystem-based fisheries managementMarta Collier Ferreira Leite 06 July 2011 (has links)
Em Ubatuba (SP), a pesca apresenta grande importância sócio-econômica e requer, como em outros locais, um manejo adequado. Estudos sobre o conhecimento ecológico local dos pescadores (FEK) vêm sendo considerados promissores para o manejo pesqueiro, porém poucos são delineados especificamente com esse fim. Este estudo objetivou investigar o conhecimento ecológico dos pescadores locais visando fornecer indicadores detalhados sobre a ocorrência espacial e sazonal dos recursos e da pesca, além de propor uma nova metodologia. Para tal, a partir de uma adaptação do método Delphi, caracterizado pela busca de consenso, foram efetuadas 3 rodadas de entrevistas a um total de 109 pescadores locais, em 12 comunidades pesqueiras e 3 pontos de desembarques. O FEK revelou-se sólido e detalhado, visto que permitiu identificar informações relevantes para o manejo pesqueiro com enfoque ecossistêmico. Foi possível encontrar consenso em questões-chave, tais como: (1) a localização dos principais \"pesqueiros\" por arte de pesca, (2) a distribuição espacial e sazonal dos principais recursos, (3) a identificação potencial de habitats essenciais e (4) sugestões para o ordenamento pesqueiro. A metodologia proposta se mostrou de grande valia para a investigação do conhecimento dos pescadores e sua aplicação prática em questões de manejo. Espera-se contribuir para planos de manejo pesqueiro que considerem a \"saúde\" do ecossistema e as necessidades dos pescadores locais. / In Ubatuba (SP), fishing shows a great socio-economic importance, and, just like elsewhere, requires an effective management. Studies on fisher\'s ecological knowledge (FEK) have been considered a promissory field for fisheries management but few efforts have been specifically delineated with such a goal. This study aimed to investigate local FEK in order to provide detailed indicators about the spatial and seasonal occurrence of fishing and its fishery resources. It also proposes a new methodology, adapted from Delphi\'s which is characterized by the search of consensus. Overall, a total of 109 local fishers were interviewed along 12 local communities and 3 landing sites in 3 sequential rounds. FEK proved to be consistent and detailed, allowing to identify important information for ecosystem-based fisheries management and find consensus on key-issues such as: (1) the locations of major fishing grounds per the different fishing gears, (2) the spatial distribution and seasonal occurrence of major fishery resources, (3) identification of potential essential fish habitats (EFH), and (4) fishers\' suggestions for local fishery management. The new methodology proved to be useful for FEK studies and its practical application for management. Thus, it is expected to contribute in local fisheries management plans that consider both the health of the ecosystem and the needs of local fishers.
|
843 |
Povos de terra e água:a comunidade pesqueira Canto do Mangue, Canguaretama (RN) - Brasil. / Peoples of land and water: the fishing community Canto do Mangue, Canguaretama (RN) Brazil.Silva, Márcia Regina da 29 June 2004 (has links)
Esta dissertação tem o objetivo de analisar as mudanças ocorridas nas condições de vida da população humana, na comunidade Canto do Mangue em Canguaretama (RN), e as possíveis relações com a introdução da carcinicultura a partir de 1980. Foram utilizadas técnicas de pesquisa qualitativa (análise documental, entrevistas e observações in loco) e quantitativa (análise de tendência central, dispersão e correlação). Constatou-se que as alterações ocorridas no espaço local estão associadas às pressões ocasionadas por fatores de ordens externa e interna, como a implantação e expansão dos projetos de carcinicultura, que levaram ao avanço da especulação imobiliária e intensificaram o desmatamento das áreas de manguezais ao longo do estuário do rio Curimataú/Cunhaú, contribuindo para o abandono da agricultura de subsistência nessa comunidade, além de estar levando também ao abandono da pesca artesanal, por conseguinte, a perda dos saberes da tradição aplicados na realização dessa atividade. Verificou-se, ainda, que as alterações no uso do território e dos recursos ameaçam a biodiversidade e têm contribuído para a redução dos estoques pesqueiros do município de Canguaretama e, conseqüentemente, do Canto do Mangue, sobretudo o estoque de caranguejo-uçá (Ucides cardatus). Os resultados obtidos permitiram concluir que a produção em larga escala numa economia de mercado, como se constitui a carcinicultura, desconsidera a busca de equilíbrio nas configurações territoriais. Assim, as perturbações ambientais decorrentes da carcinicultura têm conseqüências de dimensões sócio-culturais, afetando diretamente o modo de vida dos moradores do Canto do Mangue. As empresas de camarão têm absorvido parte dos pescadores que estão deixando a atividade pesqueira. No entanto, o baixo nível de escolaridade associado à idade são fatores que deixam muitos deles fora do quadro de funcionários dessas empresas. Portanto, há necessidade de se criar condições que possibilitem o desenvolvimento da carcinicultura sem colocar em risco a sustentabilidade da região. / The objective of this research was to analyze the changes occurred in the conditions of life in the human population, at community Canto do Mangue in Canguaretama (RN), and also their possible relationships with the introduction of the shrimp creation in captivity after 1980. Techniques of qualitative research were used (documentary analysis, interviews and observation in locus ) and quantitative (analysis of central trend, dispersion and correlation). It was evidenced that the occurred alterations in the local space are associated to the pressures caused by factors of external and internal order, such as implantation and expansion of the creation of shrimp in captivity projects. This led to the advance of the real estate speculation and intensified the deforestation of mangroves areas at the estuary of the river Curimataú/Cunhaú. It contributed to the abandon of the agriculture of subsistence in this community, as well as of handcraft fishing activity. Consequently, there was a loss of knowing traditional in the accomplishment of this activity. It was still verified that alterations in the use of territory and the resources threaten biodiversity and have contributed to the reduction of fishing supplies boats of the community of Canguaretama and consequently, the decrease of the quantity of shrimp (Ucides cardatus) at Canto do Mangue. The results allowed to conclude that the production in wide scale inside market economy, it disrespects the search of balance in the territorial configurations. Thus, the environmental disturbances caused by the shrimp creation of in captivity have social and cultural consequences, affecting directly the way of life of the Canto do Mangue inhabitants. The shrimp companies have employed part of the fishermen that are leaving the fishing activities, however the low level of scholarship and old age are factors that leave them out of team of employees of these companies. Therefore, conditions should be created to make possible to conciliate the shrimp creation in captivity and sustentability of the region.
|
844 |
O conhecimento ecológico local dos pescadores de Ubatuba, litoral norte do estado de São Paulo, como subsídio ao manejo pesqueiro com enfoque ecossistêmico / The local ecological knowledge of fishers from Ubatuba, São Paulo State northern coast (Brazil), as a contribution to ecosystem-based fisheries managementLeite, Marta Collier Ferreira 06 July 2011 (has links)
Em Ubatuba (SP), a pesca apresenta grande importância sócio-econômica e requer, como em outros locais, um manejo adequado. Estudos sobre o conhecimento ecológico local dos pescadores (FEK) vêm sendo considerados promissores para o manejo pesqueiro, porém poucos são delineados especificamente com esse fim. Este estudo objetivou investigar o conhecimento ecológico dos pescadores locais visando fornecer indicadores detalhados sobre a ocorrência espacial e sazonal dos recursos e da pesca, além de propor uma nova metodologia. Para tal, a partir de uma adaptação do método Delphi, caracterizado pela busca de consenso, foram efetuadas 3 rodadas de entrevistas a um total de 109 pescadores locais, em 12 comunidades pesqueiras e 3 pontos de desembarques. O FEK revelou-se sólido e detalhado, visto que permitiu identificar informações relevantes para o manejo pesqueiro com enfoque ecossistêmico. Foi possível encontrar consenso em questões-chave, tais como: (1) a localização dos principais \"pesqueiros\" por arte de pesca, (2) a distribuição espacial e sazonal dos principais recursos, (3) a identificação potencial de habitats essenciais e (4) sugestões para o ordenamento pesqueiro. A metodologia proposta se mostrou de grande valia para a investigação do conhecimento dos pescadores e sua aplicação prática em questões de manejo. Espera-se contribuir para planos de manejo pesqueiro que considerem a \"saúde\" do ecossistema e as necessidades dos pescadores locais. / In Ubatuba (SP), fishing shows a great socio-economic importance, and, just like elsewhere, requires an effective management. Studies on fisher\'s ecological knowledge (FEK) have been considered a promissory field for fisheries management but few efforts have been specifically delineated with such a goal. This study aimed to investigate local FEK in order to provide detailed indicators about the spatial and seasonal occurrence of fishing and its fishery resources. It also proposes a new methodology, adapted from Delphi\'s which is characterized by the search of consensus. Overall, a total of 109 local fishers were interviewed along 12 local communities and 3 landing sites in 3 sequential rounds. FEK proved to be consistent and detailed, allowing to identify important information for ecosystem-based fisheries management and find consensus on key-issues such as: (1) the locations of major fishing grounds per the different fishing gears, (2) the spatial distribution and seasonal occurrence of major fishery resources, (3) identification of potential essential fish habitats (EFH), and (4) fishers\' suggestions for local fishery management. The new methodology proved to be useful for FEK studies and its practical application for management. Thus, it is expected to contribute in local fisheries management plans that consider both the health of the ecosystem and the needs of local fishers.
|
845 |
Coastal Fortresses: A Cross-Case Analysis of Water, Policy, and Tourism Development in Three Gulf Coast CommunitiesKrupa, Kimberly A 23 May 2019 (has links)
As a result of development pressures and water resource struggles, once rural, spatially segregated coastal commercial fishing villages along the U.S. portion of the Gulf of Mexico are increasingly tourist frontiers for elites and the emergent businesses that cater to them. Over the course of the twentieth century, water events, from coastal land loss to hurricane destruction to natural disaster, have fast-tracked development projects that have allowed for the expansion of the tourism sector, and relaxed policies to encourage bold new economic development initiatives that often put poor coastal communities and their environment in jeopardy. This outcome is not universal across the northern Gulf Coast, but contingent on a number of local factors overlooked in the literature on coastal tourism and water policy development. This paper investigates the local nuances that have emerged as responses to global and regional development pressures by focusing on the ways in which local values and policy decisions have influenced the spread of coastal urbanization. An intensive analysis will examine the layered effects of changing land-use patterns and tourism growth pressures on three at-risk coastal communities in Louisiana, Mississippi and Florida, in the United States. This paper will test the hypothesis that coastal communities affected by a similar set of development pressures respond to these forces in different ways, depending on complex local and regional variabilities. The paper’s focus is centered on Northern Gulf Coast tourism growth patterns from post-World War II through 2018, and employs a mixed method, multiple-sited case-study design.
|
846 |
"As Long as the Mighty Columbia River Flows": the Leadership and Legacy of Wilson Charley, a Yakama Indian FishermanHedberg, David-Paul Brewster 13 April 2017 (has links)
On March 10, 1957, the United States Army Corps of Engineers completed The Dalles Dam and inundated Celilo Falls, the oldest continuously inhabited site in North America and a cultural and economic hub for Indigenous people. In the negotiation of treaties between the United States, nearly one hundred years earlier, Indigenous leaders reserved access to Columbia River fishing sites as they ceded territory and retained smaller reservations. In the years before the dam's completion, leaders, many of who were the descendants of earlier treaty signatories, attempted to stop the dam and protect both fishing sites from the encroachment of state and federal regulations and archaeological sites from destruction. This study traces the work of Wilson Charley, a Native fisherman, a member of the Yakama Nation's Tribal Council, and great-grandson of one of the 1855 treaty signatories. More broadly, this study places Indigenous actors on a twentieth-century Columbia River while demonstrating that they played active roles in the protest and management of areas affected by The Dalles Dam.
Using previously untapped archival sources--a substantial cache of letters--my analysis illustrates that Charley articulated multiple strategies to fight The Dalles Dam and regulations to curtail Native's treaty fishing rights. Aiming to protect the 1855 treaty and stop The Dalles Dam, Charley created Native-centered regulatory agencies. He worked directly with politicians and supported political candidates, like Richard Neuberger, that favored Native concerns. He attempted to build partnerships with archaeologists and landscape preservationists concerned about losing the area's rich cultural sites. Even after the dam's completion, he conceptualized multiple tribal economic development plans that would allow for Natives' cultural and economic survival.
Given the national rise of technological optimism and the willingness for the federal government to terminate its relationship with federally recognized tribes, Charley realized that taking the 1855 treaty to court was too risky for the political climate of the 1950s. Instead, he framed his strategies in the language of twentieth-century conservation, specifically to garner support from a national audience of non-natives interested in protecting landscapes from industrial development. While many of these non-native partners ultimately failed him, his strategies are noteworthy for three reasons. First, he cast the fight to uphold Native treaty rights in terms that were relevant to non-natives, demonstrating his complex understanding of the times in which he lived. Second, his strategies continued an ongoing struggle for Natives to fish at their treaty-protected sites, thereby documenting an overlooked period between the fishing rights cases of the turn of the twentieth century and the 1960s and 1970s. Charley left a lasting legacy that scholars have not recognized because many of his visionary ideas came to fruition decades later. Finally, my analysis of Charley's letters also documents personal details that afford readers the unique perspective of one Indigenous person navigated through a tumultuous period in the Pacific Northwest and Native American history.
|
847 |
Diet and trophic role of western rock lobsters (Panulirus cygnus George) in temperate Western Australian deep-coastal ecosystems (35-60m)Waddington, Kris Ian January 2008 (has links)
[Truncated abstract] Removal of consumers through fishing has been shown to influence ecosystem structure and function by changing the biomass and composition of organisms occupying lower trophic levels. The western rock lobster (Panurilus cygnus), an abundant consumer along the temperate west coast of Australia, forms the basis of Australia's largest single species fishery, with catches frequently exceeding 11000 tonnes annually. Despite their high abundance and commercial importance, the diet and trophic role of adult lobster populations in deep-coastal-ecosystems (35-60 m) remains unknown. An understanding of the diet and trophic role of lobsters in these ecosystems is a key component of the assessment of ecosystem effects of the western rock lobster fishery. This study uses gut content and stable isotope analyses to determine the diet and trophic role of lobsters in deep-coastal ecosystems. Dietary analysis indicated adult lobsters in deep-coastal ecosystems were primarily carnivorous with diet reflecting food available on the benthos. Gut content analyses indicate crabs (62 %) and amphipods/isopods (~10 %) are the most important lobster dietary sources. Stable isotope analysis indicates natural diet of lobsters in deep coastal ecosystems is dominated by amphipods/isopods (contributing up to ~50 %) and crabs (to ~75 %), with bivalves/gastropods, red algae and sponges of lesser importance (<10 % of diet each). Diet of lobsters in deep-coastal ecosystems differed from that reported for lobsters inhabiting shallow water ecosystems in this region, reflecting differences in food availability and food choice between these ecosystems. Bait from the fishery was also determined (by stable isotope analyses) to be a significant dietary component of lobsters in deep-coastal ecosystems, contributing between 10 and 80 % of lobster food requirements at some study locations. '...' Given observed effects of organic matter addition in trawl fisheries, and also associated with aquaculture, bait addition is likely to have implications for processes occurring within deep-coastal ecosystems in this region, particularly given its oligotrophic status, most likely by increasing the food available to scavenging species. Removal of lobsters from deep-coastal ecosystems may affect the composition and abundance of lobster prey communities through a reduction in predation pressure. Such effects have been demonstrated for other spiny lobster species. These effects are typically most observable amongst common prey taxa which in other studies have been commonly herbivores. In deep-coastal ecosystems, crabs and amphipods/isopods are the most common prey taxa and most likely to be effected. The ecosystem-impacts of top-down control of non-herbivorous prey species is unknown and constrains the inferences possible from this study. However, the establishment of 'no-take' areas in deep-coastal ecosystems would allow the ecosystem effects of lobster removal to be further assessed in these deep-coastal ecosystems. While data from the current study did not allow the ecosystem effects of lobster removal to be properly assessed, this study provided information regarding the ecology of western rock lobsters in previously unstudied ecosystems.
|
848 |
Livelihoods and customary marine resource management under customary marine tenure: case studies in the Solomon IslandsTungale, Rose January 2008 (has links)
In many ways, coastal marine resources have provided an important source of protein, income and even employment for coastal rural Solomon Islands communities. Fishing, for instance, has always played a very important role in these communities' culture and tradition. Subsistence fishing is traditional in most rural coastal communities. Small-scale fishing is also wide-spread. Traditionally marine areas and resources were managed by the custodians of the adjacent land and the traditional leaders in some local communities. While small-scale fisheries are managed by the Government, much of the enforcement responsibility is in the hands of the community leaders, given the realities of what that Government can provide. This research has explored the interaction between rural coastal livelihoods and marine resource management under Customary Marine Tenure (CMT) in one area of Temotu Province, Solomon Islands. Specifically the research seeks to explore, explain and describe how the livelihoods of the rural coastal villagers influence the use, access and management of marine resources and vice versa. Particular attention has been given to: first exploring the traditional marine resource management under CMT and livelihoods in the three villages; second, how the changes in the villagers' livelihoods system affects the customary marine resource management in the three case study villages; third, how changes in customary marine resource management influences the livelihoods of the villagers and finally the nature of the relationship between livelihoods and customary marine resource management is described for the first time for this part of the Solomon Islands. The research results showed that villagers' livelihoods have changed over the past decade and much of these changes have affected the customary marine resource management in the three case study villages. Consequently, customary marine resource management under CMT is no longer effective. The changes in customary marine resource also have implications on the villagers' livelihoods. For this reason the study argues that when trying to understand the factors affecting customary marine resource, the entire livelihoods system of the people should be considered. The study states that the nature of the interactions between livelihoods and customary marine resource management is a two-way relationship, dynamic and very complex. Should there be further marine resource development, the study suggests that understanding the livelihoods of the people concerned is important for better management.
|
849 |
The ecology of spiny lobsters (Jasus edwardsii) on fished and unfished reefsFreeman, Debbie January 2008 (has links)
Knowledge of the interactions among species and communities is vital for their management and protection. Increasingly, the role of marine protected areas in this regard is being recognised, primarily because of the potential for previously-harvested species to increase in density and biomass, and the linkages among species to be restored. Monitoring and research was conducted within and surrounding two marine reserves on the east coast of the North Island of New Zealand – Te Tapuwae o Rongokako, near Gisborne, and Te Angiangi, south of Napier. The aim was to describe the biological characteristics of spiny lobsters (Jasus edwardsii) in the absence of fishing, and to describe the effects of fishing and protection on lobster populations and the communities of which they are a component. Diver and pot surveys showed that lobsters were significantly more abundant within the reserves than in the surrounding fisheries and that the populations were comprised of a larger proportion of legal-sized individuals. Higher female fecundity within Te Tapuwae o Rongokako Marine Reserve compared with the surrounding fishery was proposed to be primarily a result of increased availability of large males within the reserve. The impact of the fishery on lobsters was also evidenced in the lower tail width to carapace length ratio of the fished population compared to the population within Te Tapuwae o Rongokako Marine Reserve, due to the minimum legal size for Jasus edwardsii in New Zealand being based on tail width. The largest tagging study ever to be conducted in a New Zealand marine reserve showed that sublegal male lobsters within Te Tapuwae o Rongokako Marine Reserve were growing on average faster than the same sized individuals outside the reserve, potentially as a result of the effects of handling and / or size-selective fishing. A decrease in growth rate over time was recorded in male lobsters within the reserve, which coincided with an increase in catch per unit effort and may indicate that density-dependent effects are operating. Distinct seasonal movements of tagged lobsters were recorded, with the vast majority of movements taking place within reefs. Where the boundaries of the reserve crossed reef habitat, significant movement of lobsters across the boundaries occurred. Lobsters within Te Tapuwae o Rongokako Marine Reserve not only exhibited cannibalistic behaviour but foraged during the day, including on intertidal reef platforms at high tide, potentially as a behavioural response to increased competition for food – behaviour not previously reported for this species. Outside the reserve, lobster bait apparently provided an alternative protein source but despite this supplementation of diet, these lobsters were in poorer nutritional condition, as evidenced by their lower body weights relative to carapace length and tail width for both sexes. Lobsters outside the reserve were also significantly more affected by a bacterial infection associated with handling, than lobsters within the reserve. These findings have significant implications for fisheries management and for the design and management of marine protected areas (MPAs). This study demonstrates that many of the biological parameters used in evaluating harvest strategies in the New Zealand lobster fishery may be biased unless collected from populations with a natural size structure, such as may occur within marine protected areas.
|
850 |
Latitudinal patterns in reef fish assemblage structure : the influence of long-term and short-term processesDelacy, Caine Robert January 2009 (has links)
Latitudinal patterns in reef fish assemblages reflect the influence of long-term environmental conditions, evolutionary processes and the recent, short-term influence of fishing. Long-term processes generate the typically common latitudinal patterns in reef fish assemblages, such as decreases in diversity and herbivory towards higher latitudes. These patterns reflect the global gradient in water temperature and the isolation of temperate regions from the tropics. Fishing also influences reef fish assemblages in that it decreases the abundance of large-bodied carnivore species on reefs, often leading to over-exploitation, depletion and in some cases the extirpation of populations. Indirectly, the removal of these large-bodied carnivores can influence the abundance of their prey, leading to an increase in non-target species. This study examines the latitudinal patterns in reef fish assemblages across a unique biogeographic region, the temperate Western Australian coast, and incorporates an investigation of the influence of fishing on the structure of these assemblages. Seven regions across seven degrees of latitude and seven degrees of longitude covering approximately 1500 km of coastline were sampled. Fish assemblages were characterised at each region using diver operated stereo-video transects. At each region, four locations, and within each location, four reefs were surveyed totalling 1344 transects. A significant gradient in water temperature exists with latitude and longitude. Along the Western Australian coast, and in contrast to other regions species diversity of reef fish increased towards higher latitudes and there was no evidence for a decrease in the biomass and abundance of herbivorous reef fish. The presence of the poleward flowing warm water Leeuwin current combined with the absence of major extinction events means the temperate Western Australian coast contrasts with global latitudinal trends in reef fish assemblage structure. The unique biogeographic history of temperate Western Australia has also generated a high degree of endemism among reef fish. Nearly 30 % of the species found along the west coast in this study are endemic to Western Australia, with the narrow range of these species playing an important role in the large scale patterns and spatial vi heterogeneity in reef fish assemblage structure. Furthermore, many of these endemic species are large-bodied carnivores and targeted by fishers. The impact of fishing on the abundance of large-bodied carnivores throughout the Western Australian temperate region is clear both spatially and temporally. The distribution of fishing effort is greatest along the west coast and decreases towards the south following the gradient in SST. Along the west coast, high levels of fishing effort have reduced the biomass and abundance of target carnivores to well below the standing biomass of the south coast where a low level of fishing effort occurs. This reduction in biomass is related to the historical declines in catch per unit effort (CPUE) of many key target species. These target species include endemic species such as Choerodon rubescens, Glaucosoma herbraicum, Epinephilides armatus Nemadactylus valenciennesi and Achoerodus gouldii.
|
Page generated in 0.0475 seconds